Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Research Shows Loggerhead Sea Turtles Threatened by Small-Scale Fishing Operations

17.10.2007
Conservation efforts reduce loggerhead mortalities by working with fisherman in vital turtle habitat

Ocean Conservancy Scientist, Wallace J. Nichols and University of California-Santa Cruz researcher Hoyt Peckham found surprising results in a recent peer-reviewed loggerhead sea turtle study that Nichols and Peckham conducted over the course of 10 years. The full study will be published on October 17 in the online, open-access journal PLoS ONE.

The study reveals that small-scale fishing operations are a greater threat to the survival of north Pacific loggerhead sea turtles than large industrial fishing operations. The species is seriously threatened. As The New York Times recently editorialized, “For an oceanic species such as the loggerhead, these are incredibly dangerous times. It is partly the longevity of these creatures that makes their death as bystanders among the global fishing fleets feel so tragic, a truly colossal waste of life.”

North Pacific loggerhead sea turtles travel more than 7,000 miles from Japan via Hawaii to feed and grow to maturity in Baja California Sur, Mexico, spending up to 30 years there before returning to Japan to breed. The number of nesting females in Japan has declined by 50 to 80 percent over the past 10 years. Young loggerheads spend 70 percent of their time in areas that are popular small-scale fishing locations. Small-scale fishing operations threaten the survival of these turtles because the turtles are inadvertently caught in gillnets set on the ocean bottom and long fishing lines with many hooks that can easily ensnare loggerhead sea turtles.

“Many small-scale fishing operations off the coast of Baja California, Mexico overlap with high concentrations of loggerhead turtles. The combination of the indiscriminate gillnets and long-line fishing gear and the density of loggerhead turtles results in a deadly situation for the turtles,” said Wallace J. Nichols, Ocean Conservancy Scientist. “Local efforts to educate fishermen and remove dangerous fishing gear from the water are essential to protecting this endangered species that relies on the food-rich waters in Baja California, Mexico for survival.”

While small-scale fishing operations cause great threats in Baja California, Mexico, inexpensive changes in the kind of fishing gear that even just a few fishermen use results in saving thousands of loggerhead turtles every year. Local conservation efforts are already underway to address the problem and this opportunity. Hoyt Peckham and the local Baja California conservation group, Grupo Tortuguero, with the help of Ocean Conservancy, recently worked with a local fisherman to retire dangerous long-line fishing gear to save up to 700 loggerhead sea turtles each year.

To learn more about the study that identifies the dangers of small-scale fishing on north Pacific loggerhead sea turtles, a link to the full report will be available at www.seeturtles.org on Wednesday, October 17, as will the paper, published in PLoS ONE, at http://www.plosone.org/doi/pone.0001041.

The New York Times published an editorial on September 27 entitled “The Plight of the Loggerhead Turtle”. The piece addresses the threats and need to protect the turtles by highlighting a federal review of loggerhead status conducted by Nichols. The editorial is available online at http://www.nytimes.com/2007/09/27/opinion/27thur4.html?ex=1348545600&en=2ce3867c1230a72b&ei=5124&partner=permalink&exprod=permalink.

Andrew Hyde | alfa
Further information:
http://www.plosone.org/doi/pone.0001041
http://www.plos.org/press/pone-02-10-peckham.pdf

More articles from Ecology, The Environment and Conservation:

nachricht Foxes in the city: citizen science helps researchers to study urban wildlife
14.12.2018 | Veterinärmedizinische Universität Wien

nachricht Machine learning helps predict worldwide plant-conservation priorities
04.12.2018 | Ohio State University

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Data use draining your battery? Tiny device to speed up memory while also saving power

The more objects we make "smart," from watches to entire buildings, the greater the need for these devices to store and retrieve massive amounts of data quickly without consuming too much power.

Millions of new memory cells could be part of a computer chip and provide that speed and energy savings, thanks to the discovery of a previously unobserved...

Im Focus: An energy-efficient way to stay warm: Sew high-tech heating patches to your clothes

Personal patches could reduce energy waste in buildings, Rutgers-led study says

What if, instead of turning up the thermostat, you could warm up with high-tech, flexible patches sewn into your clothes - while significantly reducing your...

Im Focus: Lethal combination: Drug cocktail turns off the juice to cancer cells

A widely used diabetes medication combined with an antihypertensive drug specifically inhibits tumor growth – this was discovered by researchers from the University of Basel’s Biozentrum two years ago. In a follow-up study, recently published in “Cell Reports”, the scientists report that this drug cocktail induces cancer cell death by switching off their energy supply.

The widely used anti-diabetes drug metformin not only reduces blood sugar but also has an anti-cancer effect. However, the metformin dose commonly used in the...

Im Focus: New Foldable Drone Flies through Narrow Holes in Rescue Missions

A research team from the University of Zurich has developed a new drone that can retract its propeller arms in flight and make itself small to fit through narrow gaps and holes. This is particularly useful when searching for victims of natural disasters.

Inspecting a damaged building after an earthquake or during a fire is exactly the kind of job that human rescuers would like drones to do for them. A flying...

Im Focus: Topological material switched off and on for the first time

Key advance for future topological transistors

Over the last decade, there has been much excitement about the discovery, recognised by the Nobel Prize in Physics only two years ago, that there are two types...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

ICTM Conference 2019: Digitization emerges as an engineering trend for turbomachinery construction

12.12.2018 | Event News

New Plastics Economy Investor Forum - Meeting Point for Innovations

10.12.2018 | Event News

EGU 2019 meeting: Media registration now open

06.12.2018 | Event News

 
Latest News

Data use draining your battery? Tiny device to speed up memory while also saving power

14.12.2018 | Power and Electrical Engineering

Tangled magnetic fields power cosmic particle accelerators

14.12.2018 | Physics and Astronomy

In search of missing worlds, Hubble finds a fast evaporating exoplanet

14.12.2018 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>