endangered species | Southern Fried Science

Seafaring neanderthals and switchblade fish: A mega Thursday Afternoon Dredging, May 10th, 2018

Posted on May 10, 2018 by David Shiffman

After two weeks off, we’re back and bigger than ever!

Cuttings (short and sweet):

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Archaeologist makes case for seafaring Neanderthals. By Christopher Ingraham, for Scientific American.
Larson Creek trout may have been wiped out. By Randy Shore, for the Vancouver Sun.
US Coast Guard steps up efforts to protect right whales. From GCaptain.
The US and Britain are teaming up to study a massive glacier in Antarctica. By Laurel Wamsley, for NPR.

Spoils (long reads and deep dives):

Fish with a switchblade and other animal weapons. By Liz Langley, for National Geographic.
Fish and chips shops battered by soaring costs: Brexit threatens Britain’s national dish. By Jamie Doward, for the Guardian.
Noisy reefs help fish find their way home. By Sue Palminteri, for MongaBay
Something slithery this way comes: the difference between sea snakes and eels. By Emily Brauner, for the Ocean Conservancy blog.
Catch and deceased. By Christopher Pollon, for Hakai.
Why Atlantic species are invading the Arctic. By Eli Kintisch, for Vox.
New Brunswick fishermen not happy with rules to protect whales. By Alexander Quon, for Global News.
Chinese fish farm tests the waters with the world’s largest salmon cage. By Frank Tang, for the South China Morning Post.
Unique Amazon coral reef at risk from oil drilling. By Amelia Urry, for OceansDeeply.
Feds agree to list 75 remaining pink dolphins as endangered. By Ramona Young-Grindle, for Courthouse News
How to save the high seas. By Olive Heffernan, for Nature.

Please add your own cuttings and spoils in the comments!

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Thursday Afternoon Dredging: May 25th, 2017

Posted on May 25, 2017 by David Shiffman

Logo by Ethan Kocak

Cuttings (short and sweet):

Watch this electric torpedo ray in a clip from Jonathan’s Blue World
From Jonathan’s Blue World
Follow Dr. Kara Yopak, a professor at UNC-Wilmington who studies shark brains, on twitter.
What NOAA does to help Endangered Species. From the NOAA Response and Restoration Blog.

Middle Earth could have been saved by the Endangered Species Act

Posted on December 22, 2014 by Andrew Thaler

Smaug gigananteus syn. Cordylus giganteus, the Giant Girdled Lizard, because of course there’s an actual species named Smaug. Photo by Wilfried Berns.

In a cave in the Lonely Mountain there lived a dragon. Not a gnarly, goblin-stuffed, slimy cave, filled with the bowels of orcs and fishy creepers, nor yet an empty, granite, echo-less cave with nothing in it to lie down on or horde: it was a dragon-cave, and that meant gold. At least it did, until a nasty band of poachers found Lonesome Smaug, the last of his species, alone, asleep, threatening none, and smote his genus from the red ledger, stripping Middle Earth of critical biodiversity.

The ecologists of Carsondell would say, of the age of war that followed, that the men and dwarves and elves and hobbits brought the darkness upon themselves. Indeed, as the Dark Lord raised his army, denuded the forests, and belched carbon from the factories of Mordor, Gandalf the Grey, one of the more powerful, though among the least conservation-minded, of the wizards would remark: “It has been said that dragon-fire could melt and consume the Rings of Power, but there is not now any dragon left on earth in which the old fire is hot enough.”

The Grey Wizard failed to mention that, were it not for his callousness, there would be*.

Background information on our “trophy fishing for species threatened with extinction” paper

Posted on August 11, 2014 by David Shiffman

A giant pangasius, one of the Endangered species of fish that is targeted by trophy fishermen. Photo by user GV_Fishing, WikiMedia Commons

Andrew and I (along with several co-authors) have a new paper out in the journal Marine Policy entitled “Trophy Fishing for Species Threatened with Extinction: A way Forward Based on a History of Conservation.” You can read the paper here, and view the official press release here (will be up soon) .

We believe that this is an important topic that does not get enough attention, and we wrote the paper to review the scope of the problem, propose an easily achievable solution, and facilitate a long overdue discussion. Although we intentionally wrote the paper to be accessible to anyone, this blog post serves to explain the concepts and issues in the paper even further. We are happy to answer any questions people have about the paper, just ask them in the comments section below.

World’s leading experts say there’s a problem with false balance in conservation journalism; Steve disagrees

Posted on July 4, 2013 by David Shiffman

davesquare

False balance in the media occurs when a journalist gives equal coverage, and therefore the perception of equal validity, to both sides of a story. While this sounds preferable to today’s hyper-politicized media, sometimes both sides of a story aren’t equally valid. For example, when the overwhelming consensus of the expert medical community says that vaccines do not cause autism but a famous former actress says they do, giving both sides equal coverage can be not only frustrating, but harmful to public health. The same is true of early reporting on whether cigarettes are bad for you. Giving equal coverage of the global community of expert climate scientists and spokespeople for the oil and gas industry who claim that climate science isn’t “settled” can also be problematic, as can coverage of other scientific topics.

Image via http://undsci.berkeley.edu/article/sciencetoolkit_04

Though it is discussed less frequently in this context, overfishing and marine conservation issues can also feature some fairly egregious examples of false balance. Coverage of a proposal to list great hammerhead sharks under the Endangered Species Act in yesterday’s South Florida Sun-Sentinel provides a useful case study.

10 Reasons why Great and Scalloped Hammerhead Sharks Deserve Endangered Species Act Protections

Posted on May 1, 2013 by David Shiffman

davesquare

A great hammerhead shark swims by a Project AWARE “Extinction is NOT an Option” sign, Bimini, Bahamas. Photo credit: Neil Hammerschlag

The Endangered Species Act is one of the strongest conservation laws on the planet, and to date, no shark has ever been given ESA protections. In recent weeks, however, the National Marine Fisheries Service has responded to a series of NGO petitions requesting ESA protections for two species of hammerhead sharks. NMFS proposes to list 2 “distinct” population segments” (DPS) of scalloped hammerhead sharks as endangered and 2 as threatened, with 2 DPS’s listed as “not warranted”. The response to the great hammerhead petition is not as developed (the petition itself is more recent), but notes that “the petitioned action may be warranted”.

I strongly believe that both of these species of hammerhead sharks need and qualify for Endangered Species Act protections. If you agree, I encourage you to submit an official public comment in support of listing both under the ESA following the instructions below. Failure to follow all instructions to the letter will result in your comment not being considered. Commenting on this blog post does not count as submitting a public comment, and neither does commenting on a Facebook post about this blog post. Online petitions will not be considered. This process is open to the public, but requires that we follow basic instructions.

To submit a public comment in support of great hammerhead ESA listings, click on the “comment now” button on this page and fill in the required information. To submit a public comment in support of scalloped hammerhead ESA listings, click on the “comment now” button on this page and fill in all the required information. You can also submit written comments via the mail to “Office of Protected Resources,NMFS, 1315 East-West Highway, Silver Spring, MD 20910 or by fax to 301-713-4060 attn: Maggie Miller. Please note that if you submit a comment by mail or fax, you need to include code NOAA-NMFS-2013-0046 for great hammerheads and code NOAA-NMFS-2011-0261 for scalloped hammerheads.

To help craft your public comment, I’ve written a list of 10 reasons why these sharks qualify for Endangered Species Act protections. Please do not just quote this post word-for-word, if you do then your comment will be considered a “form letter” and not an individual comment.

13 wrong things about sharks that conservation advocates should stop saying in 2013 (and what they should say instead)

Posted on December 27, 2012 by David Shiffman

davesquare

While the rest of the scientific and management community and I are grateful for the passionate support of many shark conservation advocates, passion is no substitute for knowledge and accuracy. Some conservation issues are a matter of opinion and can (and should) be reasonably be discussed by people with different views, but many others are a matter of fact. Presented here, in no particular order, are 13 incorrect statements and arguments commonly made by well-intentioned but uninformed shark conservation advocates, along with the reality of the situation.

From MemeGenerator.net

1) “Shark finning” is synonymous and interchangeable with “the global shark fin trade.” Shark finning is a specific fishing method. It is not the only way to catch sharks, and it is not the only way to provide shark fins for the global fin trade. Stopping shark finning is a worthy goal (that has largely been accomplished already *) because it is a wasteful and brutal fishing method that complicates management, but stopping shark finning does not stop the global shark fin trade. Many people calling for a ban on finning really seem to want no shark fishing and no fin trade of any kind (a viewpoint I disagree with, but regardless, proper terminology matters). For more on the difference between shark fishing and shark finning, see this post from June 2012.

2) 100 million sharks a year are killed for their fins. The origin of this number is still debated, but it was popularized by Sharkwater. While we will likely never know exactly how many sharks are “killed for their fins”, the best scientific estimate of the scope of the fin trade we have comes from a 2006 paper by Dr. Shelley Clarke. She found that the fins of between 26 and 73 million sharks end up in the fin trade each year, with a simulation average of 38 million. Dr. Clarke wrote an essay for SeaWeb on the misuse of her work, which is worth a read.

3) 1 in 3 species of sharks face extinction. This one is actually relatively close to accurate, and can be fixed with the addition of just two words. An IUCN Shark Specialist Group report found that 1 in 3 species of “open ocean” sharks are Threatened with extinction (Threatened means Vulnerable, Endangered or Critically Endangered according to IUCN Red List standards). 1 in 6 species of shark, skate, ray, or chimera are Threatened- while still a troubling number indicative of a very bad situation, it’s half as bad as claimed by many advocates. Also, please note that I included skates and rays, which are similarly threatened but often ignored by conservation advocates (with one notable exception from 2012).

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

Posted on July 13, 2011 by David Shiffman

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.

Shark shooter identified, but has he broken any laws?

Posted on March 31, 2011 by David Shiffman

Earlier this month, a video of fishermen shooting a rifle at sharks appeared on YouTube and caused quite a stir. The video has since been removed, but not before shark conservation activists made copies (warning: the videos are extremely graphic and have inappropriate language). Apparently some computers can access the site with the videos and others can’t, if you can’t access the site and want a copy of the videos just let me know. All images in this post are screenshots from the video.

Back from the Brink: Victories in Conservation

Posted on October 26, 2010 by David Shiffman

Earth is facing a biodiversity crisis so severe that many conservation scientists refer to it as a mass extinction event. The International Union for the Conservation of Nature (IUCN), a professional network of 11,000 volunteer scientists belonging to more than 1,000 government and NGO agencies in 160 countries, evaluates species worldwide and determines their risk of extinction. This Red List, which ranks species in increasing risk of extinction – Least Concern, Near Threatened, Conservation Dependent, Vulnerable, Endangered, Critically Endangered, Extinct in the Wild, and Extinct – is described as “the world’s most comprehensive information source on the global conservation status of plant and animal species”.

Statistics from the Red List are terrifying. One fifth of all evaluated vertebrate species are threatened with extinction, including 12% of birds, 21% of mammals, 30% of amphibians, and 26% of fish. On average, fifty species of amphibians, birds, and mammals move measurably closer to extinction each year. One fifth of the world’s plant species are in danger of extinction. Critical habitat-builders, including 33% of reef building coral species and 14% of seagrass species are in very big trouble.