Conservation
In this week’s edition of Shark Science Monday, Aurelie Godin discusses Canada’s shark management policies. If you have a question for Aurelie, please leave it as a comment below and I’ll make sure that she gets it.
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The latest edition of my Great Diagrams of Science series comes from a field near and dear to my heart- using stable isotope analysis to map a food web. Japanese scientists Wada, Mizutani, and Minagawa got the opportunity to study the feeding ecology of penguins in Antarctica, and were some of the first researchers to use stable isotopes for food web analysis. To travel so far and use what was at the time (1991) state-of-the-art technology, they must have received an impressively large grant. Their results played a part in revolutionizing how scientists study food web interactions, so the grant money was well spent in that regard.
However, it seems that none of it was spent on graphic design:
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Thank you to everyone who has responded to our survey. There’s still a chance to win some free books or great big piles of swag! To sweeten the deal, we’re going to add one more prize to the list. One lucky winner, randomly drawn from or pile of surveys, will win an autographed copy of … Read More “One more week to take the Reader Survey!” »
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Ed Burtynsky, perhaps most famous for his movie Manufactured Landscapes, takes a moment to show what he sees as “symbols of how we use the land”. Do you agree that oil is the dominant landscape feature nowadays? Is the use of photography and other art media helpful in gaining new perspective for exactly how humans … Read More “Weekly Dose of TED – Ed Burtynsky photographs the landscape of oil” »
Conservation, Science
The sharks of Guam need your help! Bill number 44-31, which would make selling or possessing shark fins illegal in Guam, was just introduced by members of the Senate. The Natural Resources Committee will hold a hearing on the bill next Tuesday night Guam time, which is Monday night our time.
This bill is expected to face strong opposition from the fishing industry, which has a powerful voice. However, you can help! You send a letter in support of this policy to Shark Defenders, and they will make sure that it gets into the right hands. Many of the letters will be read out loud as testimony, and receiving a large number of letters in support of the law will be a big help!
Please send these letters to Info AT SharkDefenders DOT com by Monday afternoon U.S. East Coast time (sooner would be better).
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The Sea of Cortes (commonly referred to as the Gulf of California) lies between the Baja Peninsula and mainland Mexico. Glorified in Steinbeck’s narrative The Log from the Sea of Cortes, detailing his adventures with Ed Ricketts during a six-week collecting trip, the region is rich in both history and biodiversity. The sea is formed by the separation of the Pacific and North American tectonic plates. The East Pacific Rise runs through the Sea of Cortes and continues north to become the San Andreas Fault. The Colorado River empties into the sea at the Colorado River Delta.
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In this week’s edition of Shark Science Monday, Christopher Neff discusses how shark attacks play a role in shark management policy in three countries- the United States, Australia, and South Africa. If you have a question for Christopher, please leave it in the comments and I’ll make sure it gets to him.
Science
Scale seems like a simple term with a simple definition, a concept certainly not up for debate. Well, digging just a little deeper we find that the nuances of a term that is used in almost every discipline make it important to make sure everyone’s on the same page. Furthermore, it’s important to make sure that the concept gets some attention, some time on the agenda, and some problem-solving energy.
In the world of conservation, scale mismatches are often a visible failure of policies, leading to recent calls for ecosystem-based management that trace scales of governance according to ecosystem boundaries instead of political boundaries. This has led to the existence of “peace parks” protecting wildlands that cross national borders, watershed management plans, and attention to habitat protection in environmental species conservation, to name a few examples. However, matching governance to ecosystem scale is only one type of scale adjustment that needs to occur.
Conservation, Science
Earlier this month, NOAA provided a list of “pirate fishing” countries to Congress. This report identifies Portugal, Italy, Venezuela, Colombia, Ecuador, and Panama as nations whose vessels engage in “illegal, unreported, unregulated” fishing.
Russell Smith, NOAA deputy assistant secretary for international fisheries, explains why this so-called pirate fishing is such a big deal:
“Illegal fishing must be stopped as it subjects our fishermen to unfair competition and undermines efforts to sustainably manage the valuable fish stocks around the world that so many communities depend on for food and jobs.”
The Pew Charitable trusts reports that an estimated 20% of all fish removed from the oceans are fished illegally. NOAA claims that this results in an annual loss of $23 billion to legal fisheries worldwide. Specifically, the six violator countries listed here are guilty of having:
“fishing vessels that did not comply with measures agreed to under various international fishery management organizations, such as closed fishing seasons, vessel registry lists, and a ban on the use of driftnets. Other violations included illegal gear modifications, fishing without authorization, and possession of undersized bluefin tuna.”
Read More “Pirate fishing: far less awesome then it sounds” »
Conservation, Science
In The Mass Extinction of Scientists Who Study Species, Dr. Craig McClain argues that we are loosing a fundamental unit of biological science – the Taxonomist. He’s right, of course. Taxonomy is a shrinking field. Entire phyla sit, unstudied, as the expertise necessary to understand them retires and expires. With few to train the next generation of taxonomists, the field could slowly vanish. Molecular tools are supplanting traditional taxonomy (once described to me as “the ability to identify hundreds of species of centimeter-long worms by counting ass-hairs under a microscope”) as the de rigueur method for identifying organisms.
I do not disagree with Craig. Losing skilled taxonomists is tragic for the biological sciences. Unlike many leading the charge in support of taxonomy, I did not benefit from a rigorous taxonomic study in my early career. I fall into the same camp as Dr. Holly Bik, relying primarily on molecules, not morphology, to draw the distinctions between my samples. I never identified species by counting the ass-hairs on a worm, and my education is poorer for it.
Read More “Conservation and the Concept of Species in a Biodiversity Crisis (Part 1)” »