Conservation – Page 27 – Southern Fried Science

Wolf conservation and negative media portrayals: A panel discussion about “The Grey” with wolf experts

February 29, 2012February 29, 2012 David Shiffman 3 Comments

The recently-released movie “The Grey” tells the story of a pack of wolves that hunts the survivors of a plane crash. In addition to both being the subject of inaccurate and negative media portrayals, wolves and sharks share many ecological similarities (sharks have been called “the wolves of the sea”). A panel of wolf scientists and conservation experts agreed to answer my questions about these animals and their thoughts on how “The Grey” might impact their conservation.

Dr. Sylvia Fallon is a senior scientist with the Natural Resources Defense Council. She has worked for the American Association for the Advancement of Science, the Environmental Protection Agency, and the National Park Service.

DeLene Beland is an independent science writer whose work has been featured by the Charlotte Observer, Earth Magazine, and Wildlife in North Carolina. She blogs at Wild Muse, and is the author of an upcoming book about wolves in the Eastern United States.

Cristina Eisenberg is a Ph.D. student at Oregon State University. Her dissertation focuses on the ecological effects of the loss of wolves from forest ecosystems.

Florida angler catches (and likely kills) Endangered great hammerhead shark

February 13, 2012February 14, 2012 David Shiffman 158 Comments

Conservation, Science

Update: The angler who originally caught the shark has responded. Please see below.

On February 5th, while standing on a beach in Miami, a fisherman caught a 14 foot great hammerhead shark. According to his account, “we had it beached within an hour of hooking it. The fish weighed too much her girth was huge. Just the 2 of us wasn’t enough to get it out of the water….We snapped some pictures with our dying camera, measured it at 170 inches and spent the next hour walking back and forth with HER reviving her…it swam off slow and steady”

While this might appear to be a simple case of catch-and-release recreational fishing, it is not. My lab and I are supporters of sustainable catch and release fishing. However, it is important to note that since January 1, 2012, great hammerheads (an IUCN Red List Endangered species) have been a protected species in Florida state waters and have additional legal protections. The Florida code indicates that:

“(1) No person shall harvest, possess, land, purchase, sell, or exchange any or any part of these species:
…(k) Great hammerhead – Sphyrna mokarran.

…(3) “Harvest” means the catching or taking of a marine organism by any means whatsoever, followed by a reduction of such organism to possession. Marine organisms that are caught but immediately returned to the water free, alive, and unharmed are not harvested”

…(5) “Land,” when used in connection with the harvest of marine organisms, means the physical act of bringing the harvested organism ashore” Florida code section 68B-44 (Emphasis mine)

In this incident, the shark was brought ashore. We can infer from the statement “the fish weighed too much her girth was huge. Just the 2 of us wasn’t enough to get it out of the water” that the fisherman attempted to pull it all the way out of the water, but was unable to do so (an important legal distinction) . Instead, he ended up beaching it, bringing it so far out that it could not move or breathe. The angler did not immediately release the animal. According to the angler’s account, it was measured and photographed prior to the attempt to resuscitate it. The shark was not released alive and unharmed. By the angler’s own admission, it took over an hour of resuscitation before the animal was able to even swim away slowly.

“Sharks create oxygen”: A scientific perspective

February 10, 2012 David Shiffman 14 Comments

Conservation, Science

I want to apologize to our regular readers for stating something that should be incredibly obvious. Sharks in in no way connected to the global supply of atmospheric oxygen. If every single species of shark went extinct, there would be a variety of negative ecological effects, but a reduction in the global supply of atmospheric oxygen would not be among them. There is not a shred of scientific evidence supporting the idea that the loss of sharks would affect our oxygen supply- not a single scientific paper, not a single technical report. I’ve attended a dozen scientific conferences focusing on marine ecology or shark biology (including three international conferences) and I’ve never seen or heard of anyone presenting or even discussing this. To the best of my knowledge, not a single person who has authored a scientific paper or technical report supports this idea. Despite the complete lack of any kind of credible evidence, and despite many recent blog posts thoroughly debunking it (see here here here here here here and here ), this pseudoscience just won’t die.

The premise of the sharks and oxygen claim is as follows:

The Ocean Question: What ocean issues would you like to see discussed more this year?

February 10, 2012February 10, 2012 Andrew Thaler 11 Comments

Conservation, Science

This year, during Science Online 2012 I asked 8 marine scientists and ocean advocates the following question: What issues in marine science and conservation would you like to see discussed more in the coming year? The responses ranged from protecting coral reefs to developing better bioinformatic tools. Watch their answers below. httpv://youtu.be/2AhPV5L3LnU

U.S. Ocean Policy Takes a (Small) Step Forward

January 12, 2012January 12, 2012 Guest Writer

Conservation

Earlier today, the National Ocean Council released a new Implementation Plan for the National Policy for the Stewardship of the Ocean, Our Coasts, and the Great Lakes. We asked our colleague Morgan Gopnik, formerly a senior advisor to the U.S. Commission on Ocean Policy, to summarize this new plan.

Today marks a momentous and long-awaited milestone for true ocean policy geeks: at noon the National Ocean Council released a draft Implementation Plan for the National Policy for the Stewardship of the Ocean, Our Coasts, and the Great Lakes! If this announcement makes you yawn, you are not alone. But wait! This new Plan could be truly significant for anyone who cares about ocean ecosystems and resources or coastal communities. Let me explain.

As most readers of Southern Fried Science probably know, the last decade has produced many depressing stories about declines in ocean health: overharvested fish stocks, waning biodiversity, “dead zones,” invasive species, oil spills, etc. It has also produced a number of studies and high-level Commission reports suggesting solutions to these problems, most notably the U.S. Commission on Ocean Policy’s “Ocean Blueprint for the 21^st Century,” released in September 2004. (Full disclosure: I served as Senior Advisor to the Commission.) The Blueprint provided lots of recommendations (212 in all) about controlling pollution, managing fisheries, protecting shorelines, and addressing other specific problems. But its major theme and most significant contribution was to emphasize the need to fundamentally change our approach to ocean management and governance.

Get marine conservation into the national political conversation with Americans Elect!

January 12, 2012 David Shiffman

Conservation

In response to the partisan gridlock in Washington DC, a group called Americans Elect hopes to “open up the political process”. This organization, founded by heavy hitters from both parties, is using the internet to allow anyone registered to vote in the United States, regardless of political affiliation, to nominate candidates for President of the United States. An online convention in June, which every registered Americans Elect user can participate in, will determine the nominee. who will be on official ballots in every state alongside Barack Obama and the Republican nominee (probably Romney but we’ll see).

Additionally, any registered Americans Elect user can propose a question. The top questions, as voted on by all other Americans Elect users, will have to be answered by any potential candidate. These top questions, and the Americans Elect candidates’ responses to them, will undoubtedly attract national media coverage. Presently, most of the top questions are about the economy and foreign policy. None focus on the oceans.

I have submitted a series of marine conservation questions, and I need your help to get them enough votes to earn them “top question” status and get marine conservation into the national political conversation! If you are registered to vote in the United States, please consider registering for Americans Elect and voting for these questions.

Updates from the Deep: New and Noteworthy in Hydrothermal Vent Research

January 10, 2012January 12, 2012 Andrew Thaler 7 Comments

Conservation, Science

From hairy-chested yeti crabs to the deepest known fields, hydrothermal vents have been enjoying a bit of science celebrity in the last few weeks. Beneath the headlines, there has been an eruption of vent-related research published in the scientific literature and some exciting new expeditions just left port.

The Discovery of New Deep-Sea Hydrothermal Vent Communities in the Southern Ocean and Implications for Biogeography

'Hoff' crabs in paradise. Image from ChEss Southern Ocean Consortium

The exhaustive author list on this paper reads like a who’s who in hydrothermal vent biogeography. This is the paper that introduced “the Hoff” crab to the world, but the findings are far more significant. Hydrothermal vent systems are sorted into biogeographic provinces, with different regions supporting different communities. The iconic giant tube worms dominate the eastern Pacific, while the western Pacific (prominently featured in Deep Fried Sea) plays host to fist sized snails, and the Atlantic features shrimp as its dominant species. There are several missing gaps in our understanding of how these qualitatively different communities are connected – the Southern Ocean, the south Atlantic, the Indian Ocean, and the Cayman Trough, among others. Filling in these gaps in our knowledge can help us understand the history and evolution of hydrothermal vent ecosystems.

Bipartisan Fisheries Policy: A Worldwide First

January 9, 2012January 9, 2012 Bluegrass Blue Crab 4 Comments

Conservation

quality seafood — commercial shrimper, photo by author

According to the Washington Post, the US has overcome bipartisan politicking long enough to enact amendments to the Magnusen-Stevens Act that puts all fishery stocks into management – not just those threatened by overfishing. In practice, that means each stock has an absolute maximum catch limit for 2012. Perhaps the most resounding success of this policy is that it actually addresses scientific criticism of current management (covered fairly well by MAST) that implementing catch limits for one species just shifts fishing effort to other species – which then must have yet another species-specific policy put in place after overfishing occurs. Implementing fishery management plans for all fishery species at once eliminates the by-the-seat-of-your-pants feeling that previous US management conjures.

What hybrid sharks mean (and don’t mean) for climate change and evolution: fact-checking the media coverage

January 6, 2012January 6, 2012 David Shiffman 37 Comments

Conservation, Science

OLYMPUS DIGITAL CAMERA — Photo credit: study author Pascal Geraghty, New South Wales Department of Primary Industry

Last week, a team of 10 Australian scientists announced that they had found the world’s first “shark hybrids”, offspring of individuals from two different shark species which had interbred. During a routine survey of Australian marine life, 57 sharks were found that physically resembled one species of shark, but had genetic markers inconsistent with that species. Subsequent genetic investigation revealed that these 57 animals were hybrids between common blacktip sharks (Carcharhinus limbatus) and Australian blacktip sharks (C. tilstoni).

Some of these hybrids were “F1″, meaning that one parents was a common blacktip and one was an Australian blacktip. Others were “B+”(backcrossed), which means that one parent was a common blacktip/Australian blacktip hybrid, and the other was a “purebreed” of one of those two species. According to the study’s lead author, Dr. Jess Morgan of the University of Queensland, “our genetic marker tells us that these hybrids are ‘at least’ F1, and that these animals are reproductively viable and can produce an F2…the hybrids may be generations past F2 but the existing genetic markers can’t distinguish how many generations past the second cross have occurred.”

Kakapo: The world’s largest parrot and the birth of active conservation

January 4, 2012 David Shiffman 8 Comments

Conservation

Our world is facing a biodiversity crisis so severe that many scientists have labeled it as the sixth great mass extinction in Earth’s history. Conservation efforts to date have focused on endangered species and “biodiversity hotspots” , relatively small areas with large numbers of species. Most of these hotspots are in areas you’d expect them to be, places like coral reefs and tropical rain forests. One surprising biodiversity hotspot is New Zealand.

Though New Zealand is best known for it’s two largest islands, the country has over 700 islands larger than one hectare. Additionally, New Zealand is isolated- hundreds of miles of Pacific ocean separate it from Australia, and it’s farther still from Asia or South America. Similar to the Galapagos, this isolation has led to an extremely high rate of “endemic” species, plants and animals that are native to an area and aren’t found anywhere else on Earth.

New Zealand is particularly famous for its unique birds. You may have heard of the kiwi, a word which has become slang for a New Zealander*, but this nation is also known as the “seabird capital of the world“. In total, there are more than 60 endemic bird species found there.