Over 15 years of ocean science and conservation online
Welcome to volume #3 of Dear Shark Man, an advice column inspired by a ridiculous e-mail I received. You can send your questions to me via twitter (@WhySharksMatter) or e-mail (WhySharksMatter at gmail).
Dear Shark Man,
Since it’s #GivingTuesday, what are some shark conservation charities you recommend?
Sincerely,
Generous in Georgia
Read More “#GivingTuesday, freshwater sharks, and hammerhead schooling: Dear Shark Man, Volume 3” »
On Friday afternoon, Slate published an article I wrote about Rosie O’Donnell killing an endangered hammerhead shark. Since that time, there has been an active discussion about the article and the surrounding issues on twitter (follow me here) and Facebook (like my page here). Some of the same questions keep coming up, so I decided to gather these questions, and their answers, in one place.
1) Why are you writing an article about this instead of going to the police / isn’t this illegal?
Since January 1, 2012, it has been illegal to kill great, smooth or scalloped hammerhead sharks in Florida state waters. They must be “immediately released, free alive and unharmed.” Rosie killed this hammerhead before 2012, so it was not illegal at the time. I never said it was illegal.
2) If it wasn’t illegal, what’s the problem?
“Not illegal” is not synonymous with “there are no negative consequences to this action, and it is above reproach.” There are lots of things you can do that are legal but bad. There are some things that are illegal but are not bad. “Legal” and “ethically acceptable” are different thing. I do not think that it is ethically acceptable to kill an endangered species for fun and then yell at conservationists and scientists who criticize this action. Also, if the best you can say about an action is “it wasn’t technically against the law when I did it,” you may want to reconsider the ethics of your hobbies.
Read More “Frequently asked questions about Rosie O’Donnell killing an endangered shark for fun” »
In the year 2000, Dr. William Driggers, now of the National Marine Fisheries Service’s Southeast Fisheries Science Center in Mississippi, was sampling for sharks in South Carolina. Dr Driggers recalls that “at the time I was collecting samples from various species of sharks for life history studies and also collecting tissues for Dr. [Joseph] Quattro’s genetics work.” Dr. Quattro, a professor at the Marine Science Program and Department of Biological Sciences at the University of South Carolina, had been working on a project to characterize the population genetics of fish in South Carolina by “working my way down river systems to the coast,” he told me. “Even sturgeons were showing population differentiation, so I thought the next animal would be marine, but estuarine dependent – sharks.” Analysis of the samples Dr. Driggers collected led to a surprising result.
“I was asked “what are the chances that I would misidentify a ‘scalloped hammerhead’ and answered that there was no chance as they are very morphologically distinctive (looks like I was wrong),” Dr. Driggers told me. “I was then informed that genetic sequences indicated that some of the specimens I had labeled as ‘scalloped hammerhead’ were distinctly different from known S. lewini sequences. At Dr. Quattro’s request, I began bringing back whole specimens so they could be archived and morphometric analyses conducted. The first whole specimen that was vouchered and shown to be the new species was collected in Bulls Bay in July of 2001.”
In 2006, Dr. Quattro and his team published a paper entitled “Genetic evidence of cryptic speciation within hammerhead sharks,” showing that there may be a previously-unknown species hiding within scalloped hammerheads. When genetic samples of scalloped hammerheads, great hammerheads, and bonnethead sharks were phylogenetically mapped, the team found an unexpected result. Dr. Quattro, told me that “while doing the population genetics of this animals, we found two divergent genetic lineages within what were morphologically scalloped hammerheads. We gathered sequences and specimens from other known species and didn’t find a match – that’s what got us on the whole cryptic species [defined by Bickford et al. 2007 as “two or more distinct species erroneously classified and hidden under one species name”] thing.”
Read More “What does the new species of hammerhead mean for shark science and conservation?” »
Right now, delegates from 178 countries are meeting in Bangkok, Thailand to discuss a variety of conservation proposals. At the 16th CITES Conference of the Parties, among many other worthy topics, delegates will be debating a record-number of shark and ray proposals. These include iconic species like hammerhead sharks (3 species) and manta rays (2 species), as well as oceanic whitetip sharks, porbeagle sharks, and three species of freshwater stingray.
In addition to a record-number of shark and ray proposals, this year’s Conference of the Parties also has a record-number of attendees live-tweeting the meeting.Those of you who follow me on twitter know that I’ve been re-tweeting lots of information about CITES and these shark conservation proposals. In case you want to get the information directly from the source, I’ve prepared a guide to following along with the meeting on twitter.
1) Follow #CITES . Though this hashtag isn’t exclusively focused on sharks (and isn’t exclusively in English), there’s a lot of good information being shared.
2) Follow #Cites4Sharks . Also use this hashtag if you’re sharing any relevant links or information.
3) Follow the 13 accounts I’ve highlighted below (and let me know in the comments if you have suggestions for any accounts I should add to the list):
Read More “A guide to following shark conservation proposals at CITES on twitter” »
A newly-released list of proposed amendments for the upcoming CITES Conference of the Parties includes proposals to protect ten species of sharks and rays, a record-breaking number. These include three species of hammerheads, oceanic whitetip sharks, porbeagle sharks, three species of freshwater stingray, and both species of manta ray. In total, 37 countries are involved in … Read More “Breaking news: CITES protections for hammerheads, manta rays, and oceanic whitetips proposed” »
In my mind, where I imagine people are so interested in what I do that they hang on every carefully chosen word I write, I imagine some unspecified mob of readers looking over my I *heart* cryptozoology post and going “Whoa now, pardner!” (yes, you all sound like cowboys in my mind) “You just said there was a difference between cryptozoology and real zoology, but you deal with cryptic species all the time! What’s up with that?”
Read More “Misunderstood Marine Life # 3 – Cryptics and Cryptids” »
