Join me in the cold, dark, life-sustaining NE Pacific Ocean to discover the great beauty, mystery and fragility hidden there.

Markus . . . and the Octopus.

Today something extraordinary happened.

It happened when we placed a memorial for a dear departed friend, Markus Kronwitter.

My primary reason for sharing this is for Markus’ family and friends but, I think others will find something here too.

You see, a Giant Pacific Octopus attended and sat right atop the memorial.

Let me recount using photos.

Memorial made by Stephanie Lacasse.

 

Markus owned and operated North Island Diving in Port Hardy. He was a dear friend and incredibly important to our dive club, the Top Island Econauts. He died more than 3 years ago and the memorial today was to honour him and maybe offer some comfort to his wife Cecelia and his two daughters, Rosie and Jennifer.

The location was Five Fathom Rock just outside Port Hardy.  Part of Markus’ legacy is that he fought for this rocky reef to be recognized as a Rockfish Conservation Area. (More about the significance of that in my eulogy at the end of this blog).

After we shared thoughts about Markus at the surface, down we went to the highest point of the reef. We would wait there till the memorial was carefully descended by Steve Lacasse of Sun Fun Divers using a lift bag and rope.

We wanted to position the memorial there, near a sunken metal beer keg. The keg used to be a mooring float on this site. It was put there by Markus but, by mysterious means, had sunk to the bottom.

As soon as we got to where the memorial was to be placed, I saw a Giant Pacific Octopus, fully out in the open.

You can even see the beer keg right in the background.

After about 5 minutes, he retreated partially into his den, likely because of some annoying underwater photographer with flashing lights.

Note that I do know this was a male Giant Pacific Octopus because the third arm on the right was a “hectocotylus arm”. Only males have the hectocotylus which stores sperm. More on that at this link. (This individual also had an injured arm. It was only about half length but will regrow. Yes, some of the awe that is octopuses, is that they can regenerate limbs.)

Giant Pacific Octopus in his den.

But then . . . when Steve arrived with the memorial, the Giant Pacific Octopus darted out of his den, landed right atop the memorial and started flashing white. See the memorial under the octopus in the photos below?

Steve Lacasse with the octopus on the memorial which was still attached to the rope and lift bag.

 

You can imagine how we marvelled as this unfolded and that some pretty big emotions were felt.

Eventually, the Giant Pacific Octopus moved away. Then, the memorial could be positioned as we had intended, but not before a mature male Wolf Eel also went swimming by.

There’s no photo of that I am afraid. I was a little overwhelmed.

Memorial positioned.

 

Dive club members from left to right: Dwayne Rudy, Steve Lacasse, Natasha Dickinson, Gord Jenkins and Andy Hanke.

Somewhat dizzied by emotion, we continued with the dive.

Below, I include some photos of what we saw, especially to give Markus’ loved ones a sense of what this site is like.

Mature male Wolf-Eel in his den, very near the memorial.

 

One of 100s of Black Rockfish at this site (and a Mottled Star).

 

Male Lingcod guarding an egg mass with 100s of eggs.

 

Male Ling Cod. The boulders here give an indication of why this is such ideal fish habitat. There are so many crevices to hide in and rocks to lounge upon.

 

Rose Anemones aka Fish-Eating Telias. Sun shining down from the surface, five fathoms above us.

 

Tiger Rockfish – longevity can be 116 years WHEN given a chance.

 

See the male Lingcod under the huge mass of eggs? He’s got a lot to protect!

 

And then . . . just as we were about to ascend, there he was again – the same Giant Pacific Octopus.

The Giant Pacific Octopus with dive buddy, Natasha Dickinson.

 

How I wish we could have stayed longer. We had to surface to a far less mysterious world, but with hearts full and so much to tell Cecelia, Jenny and Rosie.

Goodbye Markus.

We’ll be visiting again soon.


My Eulogy for Markus. 

It’s my great honour to say a few words before we dive on Five Fathom Rock to position Markus’ memorial.

I of course found it excruciating to try to find the words fitting of Markus, because you have to tap into the emotion to find the words.

It’s been more than 3 years since Markus died. Cecelia, Jenny and Rosie you need the words and, even more, you need this place where your thoughts and feelings can be anchored.

In trying to find the words, I dared remember what it felt like to be around Markus. I don’t think that I know anyone else who was quite like him in knowing the right thing to do, no matter how hard it would be and no matter how many injustices he had suffered.

Markus was about making things better and standing up for what was right. He was a man of truth and science. He appeared unflinching in facing reality. He did not suffer fools. He saw through people with crystalline clarity. He walked his own path – in red “holely soles” and multi-coloured pants – and had the wisdom to stop to have Cecelia join to walk beside him.

He made hard decisions.

He . . . was . . . a . . . fighter.

He fought to be here on northern Vancouver Island.

He fought for his girls.

He fought for our dive club.

He fought for the fishes, now flourishing beneath us.

He fought for his life.
[When diagnosed with cancer, he was told he had 2 years to live. He lived for 14 years post diagnosis].

And he has left an extraordinary legacy.

Part of this, is the legacy of Five Fathom Rock.

Markus fought for this to be a Rockfish Conservation Area so that the fish that live here might get a chance to grow bigger, reproduce more, and to thrive.

And there’s success. It’s so beautiful down there Rosie, Jenny and Cecelia. The fishes are thriving – there are clouds of rockfish and it’s so powerful to think that some, like the Tiger Rockfish, might get a chance to live to be more than 100-years-old.

If there were any place where I could picture Markus, it would be here darting around with yellow fins, fish-like himself. Clearly so at home . . . here.

His efforts for Five Fathom included trying to have a mooring here and his creativity was to use a big metal beer keg. It’s down there now, on the highest part of the reef , close to where there are 2 Wolf-Eels. It’s where we’ll attach the memorial.

And how perfect that this will happen at a time when the Lingcod fathers are protecting the next generation, standing guard, not suffering fools, making very clear when you’re trying to get too close without good intent. Fiercely fighting for the next generation, with an extraordinary sense of place.

He loved it here.

It’s impossible to forget him here.

Not that there is any possibility of forgetting Markus or what he stood for.

His legacy of course includes you Rosie, Jenny and Cecelia. He loved you so much and I can’t even imagine how hard he fought wanting to be here still to protect you, to make sure you would always be okay.

Jennifer and Rosie, you are fighters like your Papa Markus.

Jenny – I also think you have his sense of purpose.

Rosie  – I think you have his sense of place.

Cecelia – the love in your eyes makes clear how you carry Markus with you always.

Markus Kronwitter.
It is here on Northern Vancouver Island that he found his wild.
It is with you three, that he found love.

 

 

 

 

 

 

 

 


Compilation of photos and video below.

 

Twenty Years . . .

Twenty years ago today I returned to British Columbia after having taught in the Netherlands for many years. I wanted to learn from Nature and I wanted to make it count.

Forgive the following introspection.

You’ll understand such reflection comes with anniversaries and being perplexed by the passage of time even though it is the one great constant . . . one minute passing into the next, days stacking into years, and years becoming the stories of our lives.

1999 – Photographer unfortunately unknown.

So much has changed. So much has not.

Thank you to the many of you for being part of this path. Thank you for helping show the way forward whereby I continue to learn from Nature and strive to make it count for those who are ultimately my guides, and my bosses . . . children.

There’s something that will never change.

 

August 2018. You’ll note my ability to point at things has not diminished. 😉 Photo: Captain Kevin Smith, Maple Leaf Adventures.

Cetacean Gender – Male or Female? How to Know?

The information here on The Marine Detective is, in part, intended to answer important life questions like “How Do Octopuses Poo?“. Right up there as life-enhancing information is the answer to “How can you determine gender in cetaceans?” (Cetaceans are whales, dolphins and porpoises and it is important to use this term because, for example, Orca are actually members of the dolphin family.)

Please know that I am being serious here. This is meant to be anything but giddiness-inducing, whale-porn-perceived content. Further, I believe to my core that the more knowledge we have of our marine neighbours, the more understanding, connection and respect there is for the Ocean and thereby, the better the hopes for our own species.

And, in that regard, I am here to serve.
So here you go.

Pacific White-Sided Dolphins with very young calves whereby it can be concluded the adults at their side are females. ©Jackie Hildering.

 

The following allow determination of gender in cetaceans:

  • Presence of a calf beside the mother. BUT this can be difficult to determine unless the calf is really young i.e. it just could be a smaller, unrelated individual travelling with a larger one;
  • DNA testing BUT this is not useful to the average person;
  • Seeing a male’s penis BUT it is usually concealed inside the body / genital slit where it isn’t creating drag and losing heat;
  • There can be behavioural clues BUT you need some pretty good understanding of a species for this; and
  • Physical differences between genders (other than the penis). BUT, with the exception of differences between adult dorsal fins in some cetacean species, these features are on the underside of the animal. This means you don’t often get a chance to see them.

But look!
It’s a female Pacific White-Sided Dolphin!

 

How do I know? Female cetaceans have mammary slits and the genital slit is larger, containing both the vagina and anus. See below. The mammary slits contain the mammary glands which produce milk for baby.

Note too how all cetaceans have a belly button. All mammals have belly buttons of course as we develop in utero, attached with an umbilical cord to our Mom’s placenta. 🙂

 

 

Here is the contrast between a male and female Pacific White-Sided Dolphin.

 

These difference exist right from birth.

In the case of the really big dolphins – Killer Whales / Orca – not only are there these differences, but the pigmentation pattern in the pelvic area is different in males and females too, right from birth. Males have a larger area of white than the females do. See below.

Of course AFTER the age of puberty, it is really easy to discern a mature male Orca, from a female because the dorsal fin is much larger in mature males. The pectoral fins are larger too and the edges of the tail are often curved downward. Mature males are also larger than females. BUT these physical difference only start developing around the age of thirteen. Many people make the error of presuming an Orca with a smaller dorsal fin is always a female. Nope, the individual with a smaller dorsal fin could be an immature male.

[If you would like more information on the 3 ecotypes / 4 populations of Orca in the NE Pacific Ocean, see related blog item “What’s the Bigg’s Deal?”.]

To the trained eye, the dorsal fins of mature male Pacific White-Sided Dolphins are also different from that of females and immature males.

The dorsal fins of the mature males are stockier and often have more nicks and scratches as shown in the photo below.

ID photo of the dorsal fin of a mature male Pacific White-Sided Dolphin by Alexandra Morton. Her research into Pacific White-Sides continues with Dr. Erin Ashe.

 

In Dall’s Porpoises, the mature males’ dorsal fins also look different than that of the females and juvenile males. The angle is different as you can see from the images below. This is very, very difficult to discern while in the field however i.e. I can look at a photo of their dorsal fins and determine gender in mature Dall’s Porpoises but, in real time, I rely on behavioural clues and/or the presence of a calf.

How to discern gender in Harbour Porpoises?

Good luck! The mature females are bigger in this species but that is VERY difficult to discern and I have never seen the underside of a Harbour Porpoise except when a Bigg’s Killer Whale was making an attack. Harbour Porpoises are very cryptic and very rarely are they acrobatic.

Picture quality is really poor in this photo of a mother Harbour Porpoise with her calf.
Terrible photo is by yours truly.

 

Want to know the detectable gender differences in Humpback Whales?

The genital and mammary slits can be very difficult to see. What is much easier to detect is that, from birth, only females have a bump know as the “hemispherical lobe” (note that nobody knows what this structure is for). However, where in dolphins you can get a clear look at the pelvic area when they leap out of the water, this is not the case with Humpbacks. The way they breach, there is a big “skirt” of water obscuring the pelvic area.

That’s why we researchers get really excited when Humpbacks lie on their backs and tail lob, as in the photos below. THEN there is a chance of seeing the pelvic area. Please see our Marine Education and Research blog at this link for detail on discerning gender in Humpback Whales.

Source: Marine Education & Research Society blog “It’s a Girl! “Lucky” the Humpback Whale“.

 

So there you go, armed with more knowledge about our cetacean neighbours. To reiterate, I’ve made the effort to share all this because I believe that the more we see those we share the planet with as individuals and the more understanding we have  . . .  the better we can be. That you for being someone who cared enough to read this.

Since I am feeling quite “teachery” with this blog, how about a test? 🙂 “Oh yes!” (said no one ever).

But if you want to test your knowledge, see the images below. Are these male or female Pacific White-Sided Dolphins? Scroll down after the three images for the answers.

Question #1 – Male or female? ©Jackie Hildering.

 

Question #2 – Male or female? ©Jackie Hildering.

 

Question #3 – Male or female? ©Jackie Hildering.

Answers:
The genders of the Pacific White-Sided Dolphins in the last three images are:
#1 is male
#2 is male
#3 is female. The mammary slits are difficult to see but you can clearly see the larger genital slit and that there isn’t a separate slit for the anus.

Heartbreak

[Note the following is aimed at those with an association with Telegraph Cove, British Columbia. There have been developments whereby I am being asked many questions and have chosen this as a way to answer and to bundle information. If you do not have an association with Telegraph Cove, this blog item may not have interest for you.]

The emotion:

Yes, I am heartbroken.

It’s the heartbreak that comes when decisions made by people you care about, hurt other people you care about.

It’s the hurt that comes from loving a place and the community associated with it.

It’s about an ending that did not need to be.

It’s about whale watching from Telegraph Cove, British Columbia.

I am sharing this information because of the number of questions I am being asked about what happened. I am being seen as a source of information because of my attachment to Telegraph Cove and my involvement with both parties – Telegraph Cove Resorts and Stubbs Island Whale Watching. I believe this necessitates my explaining my association with them.

Also, candidly, the writing of this is also likely to help me process what has happened. I have only recently learned of the developments myself.

My background in Telegraph Cove: 

For almost 20 years, I have been involved with Stubbs Island Whale Watching which has operated out of Telegraph Cove since 1980. Telegraph Cove is a historic boardwalk community on NE Vancouver Island. For many years it has been owned and cared for by Telegraph Cove Resort Ltd.

It was a whale watching trip with Stubbs Island Whale Watching in 1998 that was the catalyst for my returning to British Columbia after having taught in the Netherlands. I wanted to learn from Nature and, having experienced firsthand the understanding that came from the power of seeing whales in the wild, I hoped I could apply my skills as an educator to contribute more directly to conservation.

In 1999, I began as a Naturalist with the company. I became Head Naturalist and, since 2011, I have served as an advisor to the new ownership for issues related to conservation and education. These roles were aimed at helping to make the experience of seeing marine wildlife count for the sake of conservation because  . . . not all whale watching companies are created equal.

The environmental ethics and contributions of Stubbs Island Whale Watching’s founders (Mackays and Borrowmans) were world renown and tied directly to whale research, and their location and use of larger boats meant that noise and fossil fuels could be better managed.

The aim was to enhance and ensure delivery of a program that could maximize meaningful messaging that might help people undertake life changes for the health of the whales (and future generations). The value of the experience, in terms of potential conservation outcomes, had to be so good that it could make the carbon and noise worth it. The aim was to continue the company’s ethics of being anything BUT about “getting up close and personal”. It was to try really hard to make the privileged experience of seeing whales in the wild count, tangibly.

The education delivered on the boats was a big part of this as was my hiring and training the biologists that had the depth of dedication and ethics to carry out this program. It has been such a source of joy to see how these team members have carried the experience of working from Telegraph Cove, and learning from wildlife, into their careers in conservation-related fields.

My being a co-founder of the Marine Education and Research Society is directly linked to Telegraph Cove and Stubbs Island Whale Watching. It was from their boats that we first documented the return of Humpback Whales and, since 2004, they have been our greatest data contributor as well as providing support in many other ways.

The kindness, generosity and support of Telegraph Cove Resort Ltd. has also played a major role in my life regarding diving, education and research. My boat is moored there. I dive from there. My footsteps have stomped on that boardwalk thousands and thousands of times.

Maintaining the historical flavour of Telegraph Cove is clearly a labour of love and the Whale Interpretive Centre (WIC) could not succeed without the involvement and support of Telegraph Cove Resorts. I am a past director, manager and chair of the society behind the WIC and still provide tours there when asked.

I will say it again, there are many people I really care about whose lives are connected to the beautiful place that is, Telegraph Cove.


The facts: 

So what has happened?

Autumn 2018

  • Stubbs Island Whale Watching was put up for sale by the three owners for a variety of personal reasons.

December 2018

  • Telegraph Cove Resorts Ltd. informed Stubbs Island Whale Watching they would not be renewing their lease.

January 22, 2019

  • Telegraph Cove Resorts announces that another whale watching company will now be operating out of Telegraph Cove.
  • Stubbs Island Whale Watching makes an announcement about the repercussions. There is no more Stubbs Island Whale Watching.

The announcements: 

Media release Stubbs Island Whale Watching – January 22, 2019 

Stubbs Island Whale Watching is closing its doors after 38 years

BC’s first whale watching company, Stubbs Island Whale Watching, is
closing its doors after 38 years in business.  Renowned for its dedication
to ethical wildlife viewing, education and conservation, the company has
welcomed nearly half a million visitors to the North Island experience
since it was established in 1980.

The closure comes following an unexpected change in the company’s office
space lease agreement with Telegraph Cove Resort after more than three
decades operating from that location. Our lease agreement will end on
January 31, 2019.  Stubbs Island Whale Watching was put up for sale at the
end of the 2018 season, but we planned to continue operating the company
until a purchaser was found. The changes to the lease agreement came as a
surprise.

Guests from all over the world come to experience whales in the wild and
the company’s ethical whale viewing practices have been part of what made
us so renowned. Stubbs Island Whale Watching is informing reservations
holders of the change and attempting to shift reservations to Discovery
Marine Safaris in Campbell River, a smaller company owned by one of the
three owners of Stubbs Island Whale Watching.

For information call: 1-250-928-3185.

Thank you for your years of support.

The owners of Stubbs Island Charters Ltd. Heike Wieske, Geord Dunstan, Roger McDonell” 


Telegraph Cove Resort – January 22, 2019

The following is from the January 22nd article in the Campbell River Mirror with quotes from Telegraph Cove Resort.

“Stubbs Island’s announcement today was quickly followed by an announcement by Telegraph Cove Resort that it was teaming up with Victoria-based Prince of Whales Whale & Marine Wildlife Adventures “to enhance marine wildlife habitat and research while providing greater opportunities for outstanding eco-tourism.”

Resort owners Gordie and Marilyn Graham said they are pleased to welcome one of the province’s “largest and most-respected whale watching and eco-adventure companies” to their recreational seaside haven. The release made no mention of their relationship with Stubbs Island.

“I’ve always been impressed by the Prince of Whales’ work in marine conservation and academic research,” Gordie said. “Their principled approach dovetails perfectly with our continuing efforts to protect marine wildlife while delighting and educating visitors with awe-inspiring experiences in nature.

The Grahams established a campground and marina at Telegraph Cove in 1979, drawing enthusiasts to the great recreational ocean fishing. Over 40 years, their work restoring original buildings for tourist accommodation has brought life back to the former sawmill town. Today, the resort, which can accommodate up to 500 guests, also includes a restaurant and pub, general store, small hotel and Telegraph Cove’s Whale Interpretative Centre.

One of the last boardwalk settlements left on Vancouver Island, Telegraph Cove attracts thousands of whale watchers, fishermen, boaters, campers and kayakers every year.

As well as building a tourist mecca, 210 km northwest of Campbell River, the Grahams have invested in marine life protection and education, donating more than $150,000 to salmon enhancement projects.

Meanwhile, Stubbs Island Whale Watching is informing reservations holders of the change and attempting to shift reservations to Discovery Marine Safaris in Campbell River, a smaller company owned by one of the three owners of Stubbs Island Whale Watching. Guests looking for information can call: 1-250-928-3185

Stubbs Island Charters Ltd. started whale watching in 1980 out of Telegraph Cove and has worked to establish a reputation as a company that puts the wildlife first. The company supported research and education efforts, providing meaningful education to guests, modeling best practices, and sharing expertise to help build a community now known as the North Island Marine Mammal Stewardship Association. For the past six years it has received a “Certificate of Excellence” from Trip Advisor for its many five-star reviews.”


There you have it.

Any further factual developments will be added to the content here.

My deep empathy to those for whom this news is difficult too.

Onward, facing reality and being guided by what is best for the whales and what they reveal of human value systems and the state of the environment  . . . upon which our lives depend.

 

Telegraph Cove in 2008. ©Jackie Hildering.


Related blogs:

The Woman Behind the Words . . .

Who is the woman behind the words AND the images?

A beloved friend has advised “Jackie, you need to step into the spotlight more” i.e. making more evident who The Marine Detective is.

For a whole soup of emotions/reasons, I am more comfortable being behind the camera in this role. That’s why I chose for the moniker “The Marine Detective” rather than my name. But okay – here’s an image highly representative of who I am, tutu and all.

Photo: ©Jacqui Engel, September 2018.

I will also share a story that is rather typical regarding there being a bias that leads to misidentifying who the voice is here on TMD.

Here goes . . . I was having lunch in a local restaurant and had one of my calendars on the table. The waitress, a lovely young woman, bounded over, saw the calendar and said: “The Marine Detective! Oh my god, I love him!”. I quietly asked, “Who do you love?” She enthusiastically said, “The Marine Detective! I follow him on social media!” and then very generously provided her views on the value of the work.

I stood up and felt compelled to stand in front of her and said softly, “I am The Marine Detective”.

What I interpret of her reaction is that she could not reconcile that the age, gender and stature of the person in front of her could be the actual force behind what she had described.

Is it important? I have come to understand that it is. That, by simply living out what I perceive to be my calling, I can help shift biases with regard to age and gender.

I am a 55-year-old woman in science who hurls herself into a cold ocean to learn from the life there, who drives a boat, studies whales, speaks from the heart, and who wants for equality in the world for the betterment of all.

That’s that for a while. Going back behind the camera now.


Oh, and why the tutu? If it’s new to you that it’s what I wear when I dive, please see my blog “Life is Hard? Wear a Tutu” at this link.

They Can’t Thrive If We Don’t Change.

[Dear folks, I anticipate some of you will have resistance to what I write below but I have to go there – not to bemoan problems, but in the desperate want for positive change.]

When will we get it? When?!

A science-based decision is made to extend critical habitat for the 74 endangered Southern Resident Killer Whales and what happens? Seventeen British Columbian coastal Chambers of Commerce “unite” in wanting to slow down potential further implementation measures claiming there has not been enough science done. The media release is here.

I understand the climate of uncertainty I really do when you have a Federal Government that wants a pipeline to go through and is being “assessed” on how it will impact the marine environment.

However, we cannot continue in the same way “defending” ourselves against potential fisheries closures and measures to reduce disturbance to the whales, claiming to love the whales and using them as a resource.

This is so difficult to articulate but you cannot keep on keeping on and expect things to change for the better, especially in a world that is undergoing climate change.

If we change we’ll lose jobs, jobs, jobs. Will we? What if we had a transition plan? What if we got ahead of the curve? What if we shed fear and entitlement and embraced precaution and human ingenuity, but not as an exit strategy? 

Pride and positive ownership can be taken in choosing for more modest takes of salmon i.e. leaving Chinook for the Orca, and in wildlife viewing that reduces stresses to the whales.

While we’re at it, let’s realize we are literally driving climate change and increased large vessel traffic on our coast through our excessive consumerism and demand for fossil fuels and our resistance to change, absence of understanding science, and being manipulated with fear.

Further, the idea that salmon enhancement is a panacea defies science, especially in light of climate change and the fact that we are releasing juvenile salmon into a gauntlet of open net-pen salmon farms (which indisputably amplify and transmit disease and parasites). Note too that salmon enhancement facilities are very often beholden to the open net salmon farming industry as funders. Oh what a web we weave . .

Precaution is not “let’s make sure we have done even more studies and then we’ll know for sure.” Precaution is the duty to prevent harm, even in the light of uncertainty and this involves urgency, not dragging our heals, gambling with the future.

When will we learn to draw a bigger temporal circle around our consideration of economy?

When will we truly recognize that the Orca are serving as indicators of environmental health and barometers of our value systems? The ultimate truth is that how we treat the whales will ultimately be how we treat ourselves, especially future generations.

We are all consumers and voters here. We are all empowered to influence change.

Photo: Member of the endangered Southern Residents in Blackfish Sound, ©Jackie Hildering.

From the news release: “VANCOUVER ISLAND CHAMBERS UNITE TO PROTECT MARINE-BASED TOURISM FOLLOWING FEDERAL SRKW CRITICAL HABITAT ZONE EXTENSION
In an effort to protect their communities, the Chambers of Alberni Valley, Bamfield, Campbell River, Chemainus & District, Comox Valley, Duncan-Cowichan, Ladysmith, Greater Nanaimo, Parksville & District, Port Hardy, Port McNeill & District, Port Renfrew, Qualicum Beach, Sooke, Tofino-Long Beach, Ucluelet and WestShore have united to form a coalition called Thriving Orcas, Thriving Coastal Communities . . .
As British Columbians who are now concerned about the survival of our own businesses and communities, we urge the federal government to slow down the implementation of any additional management measures, take the time to get the science right and engage coastal stakeholders,” said Ablack. “Potential restrictive management measures, such as a fin fish closure, that are based on faulty data and limited science could end up destroying our communities and do nothing to help the orcas. On the other hand, a carefully considered multi-faceted approach that includes deeper investments in restoration, enhancement, science and monitoring could ensure that orcas and coastal communities thrive* together as we have for generations.”

[*Note: The Orca are NOT thriving.]

How Do Octopuses Poo?

It’s one of the characteristics that unifies every living thing on the planet – we all need to get rid of waste.

How do octopuses do it? See the video and explanation below.

Why share? Because I solidly believe the world can be a better place through understanding and respecting the commonalities and differences of others AND through marvelling at the natural world.

With great thanks to Krystal Janecki for her video and Neil McDaniel and Jim Cosgrove for their knowledge.

Video above: Giant Pacific Octopus defecating by ©Krystal Janicki November 5 2018, Madrona in Nanoose Bay, British Columbia, Canada. Observations are that in areas where octopuses appear to be eating more bivalves like Swimming Scallops, the poo is whiter / paler in colour. In areas where they appear to be eating more Red Rock Crabs, the poo is various shades of red. (Source: Jim Cosgrove, personal communication).   


The detail below on octopus digestion is from “Super Suckers – The Giant Pacific Octopus and Other Cephalopods of the Pacific Coast
by James A. Cosgrove & Neil McDaniel (Harbour Publishing):

“The first structure for food gathering [in octopuses] is the interbrachial web, the umbrella-like membrane between the arms that the octopus used to enfold food such as crabs, shrimps and sometimes even fishes and birds.The web forms a bag-like container that holds prey close the the mouth . . .

Giant Pacific Octopus hunting. Notice the webbing between the arms = the interbrachial web. 
©Jackie Hildering.

The second structure is the mouth. An octopus has two pair of salivary glads, anterior (front) and posterior (rear). The posterior salivary glans produce a toxin called cephalotoxin. in giant Pacific octopuses this is not known to be deadly to humans, whereas in the blue-ringed octopus of the South Pacific it has killed people. When an octopus captures food in its web, it secretes cephalotoxin into the water, where it is absorbed through the gills of its prey. The neurotoxin affects the nervous system and causes the prey to lose consciousness and stop struggling. The octopus can then use its suckers to aid in dismembering prey such as crab.

The beak, the hardest part of the octopus, is made of the same chitonous material as human fingernails. It is black and looks like the beak of a parrot. The mouth also has a specialized tongue called a radula. The file-like organ is covered with tiny, sharp teeth that are replaced when they wear down, much as sharks regrow teeth. The radular teeth shred the prey’s tissue once the beak has bitten the food into chunks. Working together with the beak and radula are secretions of the anterior (front) salivary gland. The gland produces a mixture of substances called enzymes, which cause the food to break down quickly inot a jelly-like substance that can be easily digested. A combination of the enzymes and the radula enables an octopus to winkle even the tiniest bit of tissue out of the tip of a crab’s leg.

Giant Pacific Octopus beak. It’s made of keratin.

Once the food is captured, eaten and swallowed, it travels along a short tube called the esophagus (similar to the throat in a human) to a structure called the crop. This is not exactly the same as a bird’s crop, but it does function as a storage place for undigested food.

If the stomach is empty, food passed immediately from the crop to the stomach, which despite distinct differences, functions much like our stomach. In the giant Pacific octopus the digestive enzymes do not come from the wall of the stomach but are produced by the live and introduced into the stomach through ducts. These enzymes cause the food to break down into small molecules that the blood absorbs and transports back to the liver. There they are processed and distributed to the cells of the body. This dual-function liver is different from a human’s whose liver primarily deals with the products of digested food.

Summary of octopus digestion. Source: Super Suckers by James Cosgrove and Neil McDaniel
Harbour Publishing. Illustration by Adrienne Atkins.

Now we find another major difference from vertebrates such as humans and also from squids. Once the food in the octopus stomach is digested, the waste material has to be evacuated. The octopus stomach, however, has only a single tube leading in and out. This means that the waste material must be evacuated through the same tube the food entered before more food can be introduced for digestion. You might call this the “digestion on the instalment plan.” The waste comes out of the stomach into the intestine, which encapsulates it and moves it along till it eventually reaches the end of the intestine located at the entrance to the funnel [aka siphon]. Octopus poop, ejected from the funnel, looks a bit like a slender . . . ribbon . . . .

In giant Pacific octopuses the processing of food, depending on what is being eaten, can take many hours. On average these octopuses make six hunting trips a day, reposing in their den most of the time while they process food.”


Below, video of a giant Pacific octopus hunting. In this encounter, the octopus passes directly over a mature male Wolf Eel in his den. THEN, a Decorator Warbonnet emerges as well.


 

Diagram below names addition octopus anatomy.

Further octopus anatomy. Source: Super Suckers by James Cosgrove and Neil McDaniel
Harbour Publishing. Illustration by Adrienne Atkins.

Into the Forest

Submerge into the forest with me.

Escape for just a little while.

Immerse into the beauty. Feel the fragility?

Know your connection and reliance and . . . embrace the humility of it all.

Hoping these photos from today’s dive in a Bull Kelp forest provide you with all of that.

For more on the importance of kelp forests, please see the posts at this link. 

Down we go.November sun streaming into the Bull Kelp forest and . . . trees above the surface.
©2018 Jackie Hildering.

 

Split Kelp, Striped Sunstar and female Kelp Greenling. See her (orange fish)?
©2018 Jackie Hildering

 

Blood Star, Crimson Anemone, Pink Soft Coral, Giant Plumose Anemones, etc!
©2018 Jackie Hildering

 

Striped Sunstar just below the surface.
©2018 Jackie Hildering

 

Crimson and Giant Plumose Anemones (with a school of rockfish in the background).
©2018 Jackie Hildering

 

Proliferating Anemones on the stipes of Split Kelp and on a species of coralline algae.
©2018 Jackie Hildering.

 

Lingcod in the forest.
©2018 Jackie Hildering.

 

Northern Kelp Crab climbing in the Bull Kelp Forest.
©2018 Jackie Hildering.

 

And . . . following my bubbles to the surface, sun refracting through the Bull Kelp. Back to the terrestrial part of our world so reliant on the Ocean’s algae for the production of oxygen, buffering of carbon dioxide and as fuel in marine food webs. 
©2018 Jackie Hildering.

People’s Choice!

Still shaking my head at my site having won the Science Writers and Communicators of Canada’s “2018 People’s Choice Award for Best Canadian Website“. It is a People’s Choice Award so the winning is because of YOU.

Please see below from my interview with Trish Weatherall for the North Island Eagle where I try to express what the award means. Below that interview, I have included a listing of the other sites nominated for the award. Included are their social media links to make it easier to follow these great science resources.

Thank you so much for your support and belief in “The Marine Detective”.


Marine Detective wins People’s Choice
for Canadian science web site

By Trish Weatherall  – North Island Eagle 

The Marine Detective has gone national! In October, Port McNeill’s Jackie Hildering received the Science Writers and Communicators of Canada (SWCC) 2018 People’s Choice award for favourite Canadian science web site, for her site themarinedetective.com.

Article as it appeared in the North Island Eagle. Click to enlarge.

Her reaction to winning the award is, “Stunned euphoria and a great depth of gratitude. I still feel like I have not come close to processing it. The other websites nominated for the award are of such a high calibre and most represent organizations (and even funded ones!) rather than an individual compelled to do this work.” 

The Marine Detective was up against 9 other popular Canadian science web sites: Earth Rangers; Hey Science – Science Sam; Inside the Perimeter; Quebec Science; Research2Reality; Science Alive; Science for the People; The Weather Network – Out of this World; and Tomatosphere – Let’s Talk Science. [Please see links for these sites below.]

Canadians voted online for their favourite site for two weeks beginning Sept. 24. Hildering received an email on Oct. 10 from the SWCC that said, “I’m pleased to tell you that your site blew it out of the water and The Marine Detective is the Winner of SWCC’s 2018 People’s Choice Award for Favourite Canadian Science Site! Your followers and, I suspect, new fans gave your site more than enough love to win. Congratulations!”

Hildering, who is also a whale researcher, marine educator, diver, photographer and co-founder of the Marine Education and Research Society (MERS), created the Marine Detective web site in 2010 with a goal of educating the public about life in the Pacific-North ocean through her underwater photography.

“Awards like this, give some sort of measure to what I try to do,” said Hildering. “It lends credibility and recognition and has amplified the reach of what I am trying to achieve as The Marine Detective. But, much more importantly, it has made so clear that there is a large community that believes in the importance of this work. I feel so supported, affirmed, motivated and grateful. To know that people cared enough and believed in the work as they did, this is like jet fuel for me to keep at it. I feel like I have been lifted up by those who voted and moved forward to continue the work.”

The Marine Detective web site uses the tagline ‘Join me in the cold, dark, life-sustaining NE Pacific Ocean to discover the great beauty, mystery and fragility hidden there’, and includes a blog, her ocean life photos, and the ability to order her prints on canvas, her WILD calendar, and her Find the Fish children’s book.

“I want what I capture in photography to lead to greater interest and connection to the North-East Pacific Ocean and greater conservation actions for the sake of the well-being of future generations,” she said. “There is such a bias toward warmer waters having more life in them and this is highly problematic in too many of us not understanding that it is these dark plankton-rich waters that can sustain giants like the world’s biggest sea star, barnacle, sea lion, whales, etc.”

Hildering is striving to bring this understanding to more Canadians through as many venues as possible. In addition to the web site, she has a Facebook page (with the popular Find the Fish photo on Fridays), holds public information sessions throughout coastal BC, and has been featured on Animal Planet’s Wild Obsession series, and two BBC documentaries.

In early October, she was filmed locally for a PBS documentary on whale evolution.

“An important part of the documentary will be our area and speaking for how we humans can evolve further in our attitudes and actions towards whales and the ecosystems for which they are indicators.”

She is planning on writing more children’s books and a book for adults that will focus on what she has learned in the North Island area and how easy it is to create positive change when fear is replaced by knowledge and when our value systems change.

She has also recently applied for the Sony Alpha Female program for a chance to be one of five women to receive mentorship, training and support through a $25,000 grant and $5,000 in camera equipment.

“I want what I learn and experience in our remarkable area to count for more,” she said. “I want the words and photos to go further to create more socio-environmental good and counter eco-phobia and eco-paralysis where people are overwhelmed thinking that the problems of the world are disparate rather than knowing there are common solutions and that it is about gain in quality of life rather than loss.”


Social media links for the Science Writers and Communicators of Canada
“The Science Writers and Communicators of Canada foster quality science communication, linking science & technology communicators from coast to coast.”


Runners up for the People’s Choice Award:

  • Research2Reality: “Research2Reality is a groundbreaking initiative that shines a spotlight on Canadian scientists who are engaged in innovative and leading edge research.”

Other Canadian science sites that were nominated: 

  • Earth Rangers: ” Earth Rangers is the kids conservation organization! Our programs inspire over 100 thousand members to learn about the environment and help protect animals.”

 

Shine Brighter . . .

The following is not a science post. It is an #OceanVoice post = my thoughts about hope, our connection to the environment, and positive action for the sake of greater health and happiness. It is meant to be inspirational and, maybe, empowering.

 

It’s hard. I know it can be hard. But, it’s the only way forward, and out of the dark.

We live in complicated times where fear is used as a blunt tool.

Fear of the other. Fear of loss. Fear of change. Fear amplified in our not understanding the way forward is the same for most (if not all), socio-environmental problems. Thereby, our light can diminish and even be exhausted whereby . . . we add to the darkness.

So important to realize is: Fear thrives in the dark. Fear masks truth. Fear chokes potential. Fear makes us automatons, marching on, ignoring the reality around us. Fear walks hand-in-hand with disempowerment, the same neurons firing, limiting the way we look at the world and ourselves. And above all, FEAR LOATHES CHANGE.

Thereby, fear is such a powerful tool to be used by those who benefit from things remaining the same.

How to counter fear? Shine the light forward, living lives of connection, empowerment, celebration of human ingenuity (but not as an exit strategy) and understanding that using less is about GAIN, not loss.

Shine on. Show the way out of the dark.

For more #OceanVoice, please see click here.