Over 15 years of ocean science and conservation online
Following the deaths of two whale sharks in 2007, many animal rights activists harshly criticized the Georgia Aquarium for keeping these animals captive in the first place. I recently visited the Georgia Aquarium for blogger day, and the aquarium’s Chief Science Officer Dr. Bruce Carlson agreed to answer my questions about their whale sharks. I know that many of you have strong opinions about shark issues, but I wanted to provide the Georgia Aquarium’s side of the story.
The latest news out of CITES isn’t encouraging. Marie Levine, President of the Shark Research Institute, is attending and made the following statement: “Animals did not fare well at CITES today. The USA’s bid to have the polar bear uplisted from Appendix II to Appendix I was defeated, as was Egypt’s attempt to have the … Read More “CITES update: Bluefin and crocodiles and polar bears? Oh my!” »
If you’re still unconvinced by previous meditations into the sub-par-ody of sharks, consider this study, reported over at Laelaps: The simplest explanation was that the shark (or sharks) which left the marks had been intentionally trying to eat the feces. “From the curvature of the toothmarks and their positions on the specimens,” Godfrey and Smith … Read More “Ancient sharks, not only sub-par, but also pretty gross” »
The 15th meeting of the Convention on the International Trade in Endangered Species of Wild Fauna and Flora, also known as CITES, has begun, and representatives of 175 countries are meeting in Doha, Qatar. CITES rules have the power to make international trade of plant and animal species illegal, which has enormous significance for their conservation. 8 shark species have been proposed for CITES protection under appendix II- oceanic whitetip sharks, porbeagle sharks, spiny dogfish (commonly used for fish and chips in the UK), dusky sharks, three species of hammerheads (great, smooth, and scalloped), and my study animal the sandbar shark.
The Cove has recently collected a long list of awards including most notably an Oscar for best documentary. These well-deserved accolades reward the filmmakers for risky and groundbreaking filming in a highly protected cove in Japan where a dolphin fishery thrives, both to feed the aquarium trade and citizens wishing to enjoy a dolphin dinner. However, I caution viewers, as with most works of art that rely heavily on scientific information, that you should use the movie as inspiration but turn to the scientific literature for accurate information, especially in terms of mercury concerns within the dolphins. Mercury poisoning is scary, but it is only one amongst a long and growing list of toxicological concern. Its effects are relatively well-understood and known to be primarily of concern for pregnant women and small children.
Although vertebrates, sharks have cartilaginous skeletons. Why can’t they make up their minds? Sharks don’t fly anymore. Seriously, there used to be flying sharks. Flying Sharks. You can’t make this stuff up. Shark fins have no flavor. None. I mean what’s the point? Dermatologists get confused. Teeth for skin? What’s up with that? Sharks aren’t … Read More “10 things I hate about sharks” »
If you were follwing along on Twitter this weekend, you know that all three of us were at the Benthic Ecology 2010 meeting in Wilmington, NC. Below are some of the more interesting conversations that occurred while livetweeting the event.
Recently, Andrew attempted to correct several commonly-held misconceptions about sharks. He raises some good points, but I disagree with his conclusions. I believe that sharks are incredible animals, but I think it is far more relevant that sharks are important animals.
Read More “Why sharks matter: a reply to “sharks are sub-par at best”” »
In honor of the world premier of David Shiffman’s first major motion picture, “Four things everyone needs to know about sharks,” we are proud to repost our original response to the article, “Sharks are sub-par, at best.” Enjoy!
For too long have I sat idly by as my co-blogger has waxed poetic on the glories of sharks. How great they are as predators, how perfectly they’ve evolved. They’re ancient, pre-historic, haven’t changed in millions of years. They’re the ultimate predator, and champion in the ocean. Unchallenged, unmatched, awesome. A wonder of evolution.
It’s time to clear up some of those -other- myths about sharks.
1. Sharks are ancient creatures that have lived unchanged for millions of years.
While technically true that sub-class Elasmobranchii has been around for hundreds of millions of years, modern sharks are, well, modern. They’ve been evolving for exactly as much time as just about everything else currently alive. And they are far from unchanged. Modern sharks, though they may resemble some older models (just like modern lemurs resemble Ida), are much different beasts then their Silurian cousins. Ancient sharks occured in a diversity of forms, back when they actually dominated the ocean. These modern sharks are just the scruffy leftovers.
It has been an exciting week for shark conservation! We can only hope that this provides some momentum for CITES, which begins tomorrow. And now, for this week’s shark conservation news: The Indian Ocean Tuna Commission declared a ban on commercial landings of all thresher sharks (each of the three thresher shark species is considered … Read More “Shark conservation news: Fisheries closures, fish and chips, and a new shark sanctuary” »
