Southern Fried Science

State of the Field: Satellite tagging sharks

February 15, 2011 David Shiffman 2 Comments

Science

Modern shark researchers have access to a variety of high-tech tools. Acoustic tags with noises specific to each individual shark signal a receiver (or network of receivers) every time the shark passes nearby. Some tags have three-dimensional accelerometers, allowing researchers to study the small scale movement patterns and behaviors of sharks. Others, which are placed in the stomach, measure pH before, during, and after digestion. The most advanced technology on the market, however, is undoubtedly the satellite tag.

Shark Science Monday: Sonja Fordham explains international shark conservation and management policies

February 14, 2011February 14, 2011 David Shiffman

Conservation

In this week’s edition of Shark Science Monday, Shark Advocates International President Sonja Fordham explains international conservation and management policies. If you have a question for Sonja, please leave it as a comment and I’ll make sure it gets to her.

Finding Melville’s Whale: The Whiteness of the Whale (Chapter 42)

February 13, 2011 Andrew Thaler

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: The Whiteness of the Whale (Chapter 42)” »

Nothing to plunder – the evolution of Somalia’s pirate nation

February 11, 2011February 17, 2011 Andrew Thaler 12 Comments

Uncategorized

The droughts that shook the east African nations in the mid-1970’s and again in the 1980’s decimated the traditional nomadic clans of Somalia, leaving them without live stock to feed their families. Tens of thousands of the dispossessed, primarily of the Hawiye clan, were relocated to coastal areas. Fishing communities took root and began to flourish. With over 3000 km of coastline, rich with rock lobster and large pelagic fish, these communities grew, perhaps even thrived. Then, as is often the narrative of African nations, came civil war.

Weekly does of TED – Mike Rowe celebrates dirty jobs

February 11, 2011February 17, 2011 Andrew Thaler 2 Comments

Uncategorized

This is a major departure from the type TED talks we usually post, but it touches on many themes I think about all the time. We talk a lot about regulations, safety protocols, and best practices. But regulations and protocols are not always the best, safest, or most humane methods available and the people actually … Read More “Weekly does of TED – Mike Rowe celebrates dirty jobs” »

SFS Gear Reviews: When the current changes, you have to adapt – Digipower Universal Travel Adapter

February 10, 2011February 10, 2011 Andrew Thaler

Uncategorized

For a prolonged tour in the field, the little things matter just as much as the big things. And nothing is smaller or more easily forgettable than the lowly travel adapter. I picked mine up in an airport somewhere in Japan as an afterthought, like many travelers, once I got to my destination and realized I had no way to charge up my netbook.

The travel adapter seems inconsequential, but choosing the wrong one can be fatal. I got lucky, because the only one in stock turned out to be a workhorse, but horror stories abound of the unsuspecting graduate student plugging their vital equipment into a suspect outlet and frying a computer, blowing a critical sensor, or setting their shack on fire. Electricity is not to be taken lightly.

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