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Author: David Shiffman

New research lists tuna species as threatened; will fisheries managers act?

Posted on July 14, 2011July 14, 2011 By David Shiffman 2 Comments on New research lists tuna species as threatened; will fisheries managers act?
Conservation, Science
Image courtesy Keith Ellenbogen, OCEANA

Bluefin tuna have become a posterchild for the marine conservation movement. A single bluefin can sell for tens or even hundreds of thousands of dollars, which results in heavy fishing pressure. Conservationists and fisheries scientists have tried for years to get the fishing quota reduced. They tried to get  CITES protection for the bluefin. Citing both heavy fishing pressure and the fact that the oil spill occurred in bluefin spawning grounds in the Gulf, some recently tried to get these animals protected under the Endangered Species Act. To date, these efforts have fallen short, resulting in just a modest quota reduction at ICCAT. New research, however, shows just how important protecting this group of fishes is.

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Largetooth sawfish to become second elasmobranch to receive Endangered Species Act protections

Posted on July 13, 2011 By David Shiffman 1 Comment on Largetooth sawfish to become second elasmobranch to receive Endangered Species Act protections
Conservation, Science

The Largetooth Sawfish (Pristis perotteti) is about to become the second elasmobranch protected by the Endangered Species Act, a welcome step in the conservation of these animals.  In addition to the slow growth, low number of offspring, and relatively late maturity which characterizes most elasmobranchs, another  biological feature contributes to sawfish being “among the most endangered fishes in the world,” according to Shark Advocates International President Sonja Fordham. It’s hard to imagine a biological structure that can get more thoroughly entangled in fishing nets than the “saw” on their rostrum, and bycatch is one of the leading causes of population decline in this group of animals. Additionally, the saw used to be a part of the souvenir trade.

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WhySharksMatter is headed to Miami for his Ph.D. !

Posted on June 16, 2011June 16, 2011 By David Shiffman 8 Comments on WhySharksMatter is headed to Miami for his Ph.D. !
Uncategorized

As those of you who follow me on Twitter know, I have been accepted into a Ph.D. program at the University of Miami and will be starting there in the fall. In the immortal words of the great philosopher LeBron James, I’ll be taking my talents to South Beach.

The specific program I’ve joined is the new Leonard and Jayne Abess Center for Ecosystem Science and Policy. I will be working in the lab of Dr. Neil Hammerschlag, Director of the RJ Dunlap Marine Conservation Program.

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Book Review: Demon Fish

Posted on June 16, 2011 By David Shiffman 1 Comment on Book Review: Demon Fish
Uncategorized

Juliet Eilperin’s “Demon Fish: Travels Through the Hidden World of Sharks” hit bookshelves earlier this week. Juliet has written many great articles about shark science and conservation for the Washington Post, where she works as a science and environment reporter, and I was excited to read Demon Fish. It did not disappoint.

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Vote for us in the 3QuarksDaily science writing contest!

Posted on June 7, 2011 By David Shiffman 1 Comment on Vote for us in the 3QuarksDaily science writing contest!
Uncategorized

The 3QuarksDaily science writing contest, a prestigious online writing competition, has entered the public voting phase. One Southern Fried Science post has been nominated- Back from the Brink: Victories in Conservation (which can be viewed here) . That post, co-written by Andrew and I, tells the story of an important scientific paper that showed both … Read More “Vote for us in the 3QuarksDaily science writing contest!” »

Were 18 foot long thresher sharks responsible for closing a New York beach?

Posted on June 3, 2011June 9, 2011 By David Shiffman 10 Comments on Were 18 foot long thresher sharks responsible for closing a New York beach?
Popular Culture, Science

Earlier this week, several New York state beaches were closed due to shark sightings. Fox News’ Rick Leventhal, speaking as part of Bill Hemmer’s “America’s Newsroom” show, reported on this story, claiming that “some onlookers ID’ed them as thresher sharks, they’re estimated to be about  18 feet long”. A half-eaten seal also washed up on shore nearby.


To his credit, Mr. Leventhal  attempted to play down fears about these animals, saying that “Let’s not forget that sharks live in the ocean…as long as there’s food, they’re likely to keep hanging around”. However, I was immediately skeptical of the claim that a group of 18 foot long thresher sharks were swimming slowly just a few yards offshore. A cursory review of the known biology and ecology of thresher sharks will explain my skepticism.

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Dear Fishermen, Please release mako sharks alive. Thanks, The Management

Posted on June 3, 2011May 31, 2011 By David Shiffman 3 Comments on Dear Fishermen, Please release mako sharks alive. Thanks, The Management
Conservation, Science

The world of fisheries management is so full of laws and regulations that it’s no wonder many fishermen feel persecuted by the government. That’s why I was pleasantly surprised to see the National Marine Fisheries Service trying something new.

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International research team tracks threatened oceanic whitetip sharks

Posted on June 1, 2011May 31, 2011 By David Shiffman
Conservation, Science

Oceanic whitetip sharks are considered by many to be a poster-child for shark conservation. Once one of the most abundant species of pelagic sharks on Earth, unregulated overfishing throughout their global range had led to a precipitous decline in their population. In some parts of their range, the species has declined in population by more than 70% in the last few decades. Scientists haven’t been able to find them in significant numbers for many years. One of the few remaining known aggregation sites is Cat Island in the Bahamas, and that’s where an international team of researchers just went to find these animals.

An oceanic whitetip shark is fitted with a satellite tag. Photo credit: Dr. Lance Jordan, Microwave Telemetry, inc.

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Shark Science Monday: Rima Jabado discusses the sharks of the Persian Gulf

Posted on May 31, 2011 By David Shiffman
Conservation, Science

In this week’s edition of Shark Science Monday, Rima Jabado of UAE University discusses the sharks and shark fisheries of the Persian Gulf. If you have a question for Rima, leave it as a comment below and I”ll make sure she gets it.

Resolving human-wildlife conflicts through trust, respect, and… humor?

Posted on May 30, 2011May 29, 2011 By David Shiffman
Conservation

At the International Marine Conservation Congress, I attended a workshop focusing on resolution of human-wildlife conflict that was put on by Francine Madden of the Human-Wildlife Conflict Collaboration. Francine explained her strategies for bringing both sides (wolf conservationists and ranchers, fishermen and government managers, etc) to the table for productive negotiations that benefit everyone.

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