In April 2016 I submitted an article to The Marine Professional – a publication of the Institute of Marine Engineering, Science & Technology (IMarEST) focusing on the mass bleaching event that had hit the Great Barrier Reef at the time. In their September 2016 issue, The Marine Professional featured a comment from a reader, in which he stated that he shared the article with Dr. Russell Reichelt – chair of the Great Barrier Reef Marine Park Authority. The reader alleged that Dr Reichlet told him that the article “contains some accurate things mixed with half truths and alarmism”.
A number of coral reef, marine biology, and climate scientists have been in touch to express their concern about Dr Reichelt’s alleged comments on my article. After liaising with Dr Reichelt’s office*, I am pleased to be able to set the record straight on what he did – or rather did not say.
*I did contact Dr Reichelt directly, but he replied via his office not directly.
After corresponding with Dr Reichelt’s office to determine where the “half truths and alarmism” were in the article, I have been informed that, whilst Dr Reichelt recalls the article being brought to his attention, he never made any such comments about the article. In fact, he hadn’t even seen the article to comment on in the first place. He has since read the piece and agrees that it is factual.
I have not attempted to contact the reader to find outwhere his comment came from.
Below is a copy of the article I submitted to The Marine Professional. For those who want to see the article after it has been through their editorial process, please see the June 2016 edition of The Marine Professional.
Continue reading What the GBRMPA chair DID NOT say about my coral bleaching article
This little critter is a limpet. From the photo they may not look like the most exciting of creatures. If you’ve ever been down to the coast and taken a look at them yourself… your opinion may not have changed. They don’t seem to move around a lot, or do a lot. Of course looks can be deceiving. Under that shell is the limpet’s squishy body – and their big, muscular foot which, alongside a pretty amazing adhesive secretion, they use to cling onto rocks and other hard surfaces. Anyone who has ever had a go at trying to get a limpet off a rock knows how good a grip they can have. This fabulous foot isn’t just used to stop them from drying out when the tide leaves them exposed to the air, or keep pesky predators (or nosy humans) at bay. Limpets are grazers, feeding on tiny algae on the surface of rocks with their raspy “tongue” (called a radula). See that empty space behind the limpet in the photo? That’s where it’s been grazing. Once they have grazed an area they need to find more food. That foot gets to work, and along moves the limpet, munching up all the algae in its path. Some limpet species even appear to have a home – a particular crevice that they return to just before the tide will expose them to the air.
But this isn’t a post about how amazing limpets are. This is a post about animal movements in the ocean.. Or at least 3 different types of animal movement. Some of them move a lot further than you think. Yes, even limpets.
Continue reading Just keep swimming
In my last post I mentioned that I am starting a PhD. I promised to tell you a little more about what my research will be looking at, so here we go!
The project outline
My research comes very broadly defined already – the work’s raison d’être if you like. Here it is:
“Movement and dispersal connects marine populations, allowing restoration of depleted local populations by immigrants that renew genetic diversity. Although Canada’s Oceans Act prioritizes ‘linking Canada’s network of marine protected areas (MPA)’, connectivity has not weighed significantly in MPA network design in Canada. This study will optimize regional marine connectivity among protected areas in the Atlantic region by determining optimal locations for new MPAs and evaluating how commercially important species would be representative in the entire MPA network. To model species distribution based on larval dispersal, fishery pressure, and climate change, we will use 3-D ocean circulation models. Then, based on metapopulation theory, we will develop novel spatial network algorithms to optimise the number and spatial connectivity between MPAs under current and future scenarios of climate and fishery pressure that may alter larval supply”.
Sounds complex? Yep, for me too. Continue reading Where the wild things roam: Dispersal, connectivity, marine protected areas, and my PhD project
Hello my fellow readers
You may have noticed that I have been away for some time. Some of you have even gotten in contact with me to find out why, and encourage me back – thank you! Your words of kindness and encouragement were very much appreciated. I honestly did not mean to disappear for so long, but I did get incredibly busy. I thought I’d share with you all some of the questions I’ve been asked during my time away – and my responses! Continue reading On being MIA – and what’s next
his week I’ve been asked to take over a rolling curator account on Twitter focusing on science communication (I am Sci Comm – @iamscicomm)
Here I’ll be talking about all things science communication (with a good dose of the ocean of course!) . Come join in the conversation!
If you want to follow me on my permanent Twitter account – head over to @HoboSci
This is a big post. It’s about big things. Important things too. It deals with Canada – a big country. Actually by area, it is the second largest country in the world. It also has a lot of ocean under its jurisdiction. Take a look at the website of Fisheries and Oceans Canada, a Federal government body, and you will see statements like this:
“The Government of Canada is working to ensure the future health of Canada’s oceans and ocean resources by increasing understanding and protection of our oceans; supporting sustainable economic opportunities; and demonstrating international leadership in oceans management”
Sounds good doesn’t it. The Canadian Federal Government (which has just changed as of yesterday – see bottom of the post) have a several Acts in place to govern the bit of the ocean they have claimed as theirs. Great stuff! Except maybe, as demonstrated in a recently published paper, authored by 19 Canadian scientists including lead-author Megan Bailey (Dalhousie University), “over the past decade decision-making at the federal level appears to have undermined the government’s own mandates for the sustainable management of Canada’s oceans” Continue reading Oh Canada – what about your ocean?
Marine protected areas (MPAs) are pretty nifty tools for marine conservation. You take an area, you give it a designations and (hopefully… but the reality can be quite different) you attach some regulations/legislation to remove harmful activities to whatever it is you are trying to protect inside the MPA and make efforts to rebuild and conserve this spot. The situation of picking an area to designate can become trickier when dealing with ocean wanderers – species that move around a lot, and over great distances. It is safe to say that it is politically unfeasible to designate one area big enough to encompass, for example the movement of sea turtles. Instead, sea turtles may find critical habitat – feeding areas or nesting beaches for instance, covered by an MPA. We can’t protect them everywhere, but we can build a case to protect them where we know they hang out in large numbers. Some species are a little less predictable – or we simply don’t know where their critical areas are. Take southern Kenya’s populations of Indo-Pacific bottlenose dolphins (Tursiops aduncus) for instance. Apparently these critters are the most abundant of the marine mammals in Kenya’s Kisite-Mpunguti MPA. Abundance does not mean we know much about them though. The species is listed as data deficient on the IUCN Red List. Continue reading Protecting Kenya’s dolphin habitat
Our ever-improving technology has allowed us to fish longer, catch more, and move further from land. It has also allowed us to fish deeper. EU statistics indicate that between 1950 and 2006 fishing depths increased from an average depth of 407 metres, to 535 metres.
Life in the deep is slow-paced. Food is scarcer than in the sunlit surface waters. Species grow slower and live longer. Some deep-sea corals, like the one in the image, are thought to be over 4,000 years old. Traits like these are why organisations like Marine Conservation Institute that ” The deep-sea is the world’s worst place to catch fish” . It’s not just the sustainability of targeted species that is causing concern, but of those caught as bycatch, as well as damage to the seabed and the flora and fauna living in and on it – like the coral in the photo. So can deep-sea fishing ever be managed sustainably? A recently published study from Joanne Clarke, a PhD student at the University of Glasgow, and colleagues suggests that there might be a way to make the practice less damaging. Continue reading How deep is too deep for commercial fishing?
These weird looking things are plankton – from the genus Ancyrochitina to be a little more precise. They are also fossils – approximately 415 million old, from a period known as the late Silurian. That’s pretty cool in itself (at least I think so), but what makes this really interesting is that the individual on the left is malformed, whilst the one on the right is ‘normal’. What is even more interesting than that, is that these malformations coincide with the initial stages of extinction events.
Led by Thijs Vandenbroucke (researcher at the French CNRS and invited professor at Universiteit Gent | Ghent University) and Poul Emsbo (US Geological Survey), an international team of researchers have taken a look at these malformed (known as ‘teratological’) fossil plankton. They wanted to find out what was causing these malformations. Continue reading What 415 million year old fossil plankton tells us about heavy metal pollution and extinction
The human predator shares many similarities with other animal predators on this planet. They are intelligent, they can work either independently or in groups. They can be strategic, cunning, and postulate on possible future outcomes of actions and events. Despite such similarities, the human predator is very different from any other currently living on Earth. At a population of over 7.3 billion, humans can be found across the whole planet. They have harnessed the power of other animals to help their survival. A highly adaptable animal and a generalist feeder, they exploit a range of different prey. They have gone beyond simple tool use, creating technology capable of killing thousands of animals in one go (and technology that can potentially wipe out a significant number of humans too). They have developed fuel to allow them to travel vast distances, and societal systems to maximise the efficiency of exploitation. We are not just predators, we are “super predators”.
Evolutionary biologist Thomas Reimchen (University of Victoria) has spent many years studying stickleback fish predation. Many different species like to feed on stickleback but the work Thomas has done found that stickleback predators typically target juveniles, and never take more than 2% of the population in his study area on Haida Gwaii each year. In contrast, Thomas noted that fishers on Haida Gwaii took much more than 2% of the salmon… and they took mostly adults. It’s a pattern many of us will have seen. We take lots, and we take a lot of big individuals. In this new paper Thomas, alongside Chris Darimont – Hakai-Raincoast professor at the University of Victoria, and science director for the Raincoast Conservation Foundation and colleagues explore just how different our exploitation rates are from other predators. Continue reading The unique ecology of human predators