Southern Fried Science

Biodiversity Wednesday: Ngorongoro Crater

February 9, 2011February 9, 2011 David Shiffman

Uncategorized

Located in the East African nation of Tanzania, Ngorongoro Crater (pronounced just like it’s spelled, 😉 ) is one of the coolest places I’ve ever had the privilege to visit. Technically a caldera, the remnants of a collapsed volcano, the floor of Ngorongoro provides over 100 square miles of habitat surrounded by steep walls to more than 25,000 animals.

ngorscenery — Ngorongoro Crater- what looks like mountains in the distance actually surrounds the habitat. Photo credit: David Shiffman, 2001

State of the Field: Is catch-and-release fishing harmful to sharks?

February 8, 2011February 2, 2011 David Shiffman 10 Comments

Conservation, Science

In the wake of the new Marianas Islands shark conservation law, a debate has been raging on the shark listservs. The law wouldn’t have been possible without support from several local recreational fishermen- people who often take tourists catch-and-release fishing for sharks.

“When I heard of your effort in Hawaii to ban the sale,trade and possession of shark fins I knew if the CNMI was to follow someone with inside connections to the fishing world there had to espouse it and grow it. They do not like being told what to do from outsiders. I was not an outsider, and I fished alongside two of the very top level fishermen who happened to be upper level politicians whom I respected. Rep. Diego Benevente was one of them. I spoke with him and asked him to introduce a bill which replicated Hawaii’s law, and he did so. I kept constant contact with him and his staff in the effort to see this bill become law.”- Captain William McCue

shark_fishing_web_copy — Image from FishingDestin.info

Many shark conservationists support catch-and-release fishing, claiming that it allows fishermen the thrill of catching a large animal without killing it. Captain McCue reports that in the last 20 years:

“I’ve caught over 300 sharks in the that time a killed four- and if you include spiny dogfish it’s caught well over 2000 sharks and still killed only four- two of which were promptly eaten.”

However, some (such as “My Sunset Rendezvous” author Ila France Porcher) claim that even when a shark is released, the stress from being caught often still causes long-term damage or even death.

“As a shark ethologist, I have personally witnessed sharks who were hooked and fought, and who broke the line, emerge from the ordeal with a jaw so damaged that they lost weight and died over the following weeks or months. A high fraction of sharks caught suffered this fate, and they suffered greatly as a result of this enjoyable passtime pursued by sports fishermen. It would be great news to hear that you switched from a blood sport to a sport that celebrates the life that still remains in our seas, such as diving and photography.” – Ila France Porcher

Reader Survey Closed

February 7, 2011February 7, 2011 Andrew Thaler

Uncategorized

A big thanks to everyone who filled out the readers’ survey. We’ll pick and inform the winners tonight and have a full write-up of the survey results later this week.

Finding Melville’s Whale – Moby Dick (Chapter 41)

February 6, 2011February 6, 2011 Andrew Thaler 2 Comments

Uncategorized

After reading some of the reviews from our Readers’ Survey, many people list these among their favorite posts, while many others consider them their least favorite. So, we’ve decided to change the posting schedule for Finding Melville’s Whale. From now on, one or two new entries will appear every Sunday, instead of Tuesdays and Thursdays. We … Read More “Finding Melville’s Whale – Moby Dick (Chapter 41)” »

Weekly dose of TED – Barbara Block: Tagging tuna in the deep ocean

February 4, 2011February 4, 2011 Andrew Thaler 1 Comment

Uncategorized

Tuna are rather magnificent fish. Do you still eat tuna? Why or why not? Do you draw a line at different species?

A couple of tips when requesting papers

February 2, 2011February 3, 2011 Andrew Thaler 2 Comments

Science

As search algorithms are getting better and better, some scientific papers are getting more difficult to access. Journal subscriptions are expensive and many institutions are foregoing all but the highest impact journals. For those working outside of academia, only open access journals are a viable option. I’m fortunate that my university subscribes to most scientific journals, which means that many of my colleagues will drop me an e-mail, tweet, or phone call along the lines of “Hey, I don’t have access to this article. Can you send me a copy?”

The answer is, without hesitation, always yes. Science can only progress when we have access to the literature. At this point, I’m fielding 4 or 5 paper requests per week, and I imagine many other scientists are doing the same. Most of the time the requests are simple and straight forward. Sometimes they’re so cryptic that it takes another round of e-mails before I even know it’s a paper request. I thought it would be helpful to compile a short list of advice for how to make it all just a little easier.

Biodiversity Wednesday: Great Smoky Salamanders

February 2, 2011February 1, 2011 Bluegrass Blue Crab 2 Comments

Uncategorized

The Great Smoky Mountains are one of those places of wonder right in our own backyard. Not only have the coal and timber communities cultivated the banjo, bluegrass, and moonshine, but they are one of the most unique habitats in the world due to their forest canopy chemistry. As one of the oldest mountains chains on earth, their caps are often rounded and covered in trees, providing sheltered habitat at a variety of altitudes for critters great and small. In fact, it’s the small ones that actually deserve the most notoriety – the mountain chain boasts the highest diversity of amphibians in the world and herpetologists travel long distances to find the many salamanders hiding under the Smokies’ logs and leaf litter. This kind of refuge is increasingly important in the struggle to keep amphibians alive.

State of the Field: Policy is not just for policymakers anymore

February 1, 2011 Bluegrass Blue Crab 1 Comment

Uncategorized

Schwarzenegger_at_Town_Hall — Even the Governator believes in public participation, thanks cdcr.ca.gov

Continuing this series’ recent theme of ways to make policy work, let’s consider a broader view of what policy is and therefore who gets to create policy. It’s not just the elected officials with legislation in their job description. For one, those people are accountable to the people who elected them. Second, formal written policy is not the only kind that is effective – informal rules, community traditions, and other forms of policy are often best. Plus, these types of policy offer the general public a change to be involved in creation and implementation.

There is a large literature on the value of participation in policymaking, especially in fisheries (Silver and Campbell 2005). Here I will focus on three particularly important aspects of participation to management at the scale of an estuary, where I work: a) additional knowledge creation, b) community buy-in, and c) tighter feedback loops. These are important for relatively large-scale systems with several communities and many variables that could affect management.

Ethical Debate: Clean Energy and the State of the Union

February 1, 2011January 30, 2011 David Shiffman 7 Comments

Uncategorized

I’ve been critical of President Obama’s policies concerning science, technology and education in the past. I think he uses a lot of great-sounding rhetoric, but I have yet to see very much in the way of actual results. Despite lofty promises about climate change, we remain without a cap-and-trade system or any sort of meaningful response plan. To make things worse, the administration recently fired their primary adviser for climate change policy. Is all hope lost? Perhaps not.

Shark Science Monday: Aurelie Godin discusses shark management in Canada

January 31, 2011January 30, 2011 David Shiffman 2 Comments

Conservation

In this week’s edition of Shark Science Monday, Aurelie Godin discusses Canada’s shark management policies. If you have a question for Aurelie, please leave it as a comment below and I’ll make sure that she gets it.