Loggerhead turtle research


This National Geographic video from the USA is called Lifestyles of the Loggerhead.

From the University of Miami Rosenstiel School of Marine & Atmospheric Science in the USA:

Loggerhead release to provide vital information to scientific community

Popular sea turtles ‘Milton’ and ‘FeeBee’ to strike out across Atlantic, provide valuable tracking data

BOCA RATON, Fla. — Thursday, November 6, 2008, Dr. Kirt Rusenko, Marine Conservationist, and staff from Gumbo Limbo Nature Center in Boca Raton will release two juvenile loggerhead sea turtles raised in captivity into the Indian River Lagoon near Sebastian Inlet.

The loggerheads, dubbed Milton and FeeBee, hatched on Boca Raton’s beaches in July 2002 and were part of a sex ratio study conducted by Dr. Jeanette Wyneken of Florida Atlantic University. The gender of sea turtles is determined mostly by the temperature of the sand. Warmer temperatures produce more females, while cooler temperatures produce more males. The study aims to better learn how many males and females are born every year to more successfully determine the health of threatened sea turtle populations. The sex of sea turtles cannot be determined using obvious external characteristics until they are adults.

Mosques Support Sea Turtle Conservation in Malaysia: here.

New Theory for How Salmon, Sea Turtles Find Their Birthplace: here.

5 thoughts on “Loggerhead turtle research

  1. NT ‘a haven’ for threatened turtles

    November 4, 2008 – 1:52PM

    Six of the world’s seven threatened species of marine turtles choose to nest in the Northern Territory, according to new research.

    As a result, northern Australia is a region of international significance.

    The report documents the distribution and status of marine turtle nesting.

    Conducted over 14 years, the study from the NT Environment Department compiled data from 7,000 nesting sites along the coast collected between 1990 and 2004.

    “We have a vast coastline and wide range of coastal and marine ecosystems in the Top End,” said scientist and professor Karen Edyvane.

    “Fortunately much of it remains in pristine condition, so this baseline knowledge is really valuable both locally and internationally.”

    Wildlife officer Ray Chatto, who authored the report, said areas of high density nesting were mainly recorded off the coast on islands with sandy beaches.

    “Six of the seven species of marine turtles found in the world are found in Territory waters, with all six of the species listed as threatened nationally and five as threatened internationally,” Mr Chatto said.

    The report found flatback turtles were the most widespread nesting species while green turtles were abundant on beaches south of Cape Arnhem and on southeast Groote Eylandt.

    But the leatherback turtle was confirmed at only one site on the Cobourg Peninsula, which is their only known regular nesting spot.

    The hawksbill turtle was recorded off north-east Arnhem Land and Groote Eylandt – making them one of the top three sites worldwide.

    Mr Chatto said the next step was to formally protect turtles and their nesting habitat in the Northern Territory.

    “With many of these sites on Aboriginal land the ongoing collection and collation of these nesting records in partnership with indigenous communities will provide vital information for the monitoring and management of marine turtles across the Territory,” he said.

    “These conservation programs need to link in with the development of marine park planning and other state and federal Government regional conservation plans, as well as indigenous ranger programs and sea country planning in remote coastal communities.”

    © 2008 AAP

    http://news.theage.com.au/national/nt-a-haven-for-threatened-turtles-20081104-5hgg.html

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