Posted by: oliveridley | Tuesday, February 12, 2008

100s of turtles die in Andhra Pradesh

  I have written about turtle excluder devices (TEDs) and how they save adult turtles lives previously. So, this story is an utterly avoidable tragedy brought about by the lack of implementation of laws regulating the use of TEDs.

The death of hundreds of Olive Ridley turtles along the Paravada coast in December 2007 had occurred due to failure of the trawlers to install the mandatory turtle excluder device. Lab tests conducted at Andhra University and Veterinary Biological Research Institute, Hyderabad ruled out the largescale death of the endangered species due to consumption of toxic contents discharged by industries located nearby or on account of rise in the seawater temperature.“We didn’t find any abnormal pollution levels. The washing ashore of carcasses was not a localised phenomena as dead turtles were found all along the coast up to Srikakulam during the year-end – the breeding season,” P.J. Vijaykar, Divisional Forest Officer told The Hindu on Wednesday.

The Hindu : Andhra Pradesh / Visakhapatnam News : Olive Ridley death riddle solved

Andhra Pradesh was supposed to be a success story with the TEDs. This from an article by Kartik Shanker, one of SSTCN’s founding members…

In India, the parallel cases of Orissa and Andhra Pradesh demonstrate how a TED programme should not (and should) be implemented. In Orissa, the polarization between the fishing community and conservationists has prevented the introduction of TEDs, while in Andhra Pradesh, TEDs were introduced by the state Fisheries Department with appropriate demonstration and training programmes (see Shanker and Pilcher, 2003).

So, this occurrence in Andhra Pradesh is quite disheartening and speaks to the large gaps that lie between legislation, policy and implementation in India.

Cross Posted at The Olive Ridley Crawl

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Posted by: oliveridley | Tuesday, February 5, 2008

Casuarina Plantations and the Olive Ridley

The Students’ Sea Turtle Conservation Network was featured in the Hindu today.

Sea turtle lovers are concerned at the disturbance caused to turtle nesting habitats along the Tamil Nadu coastline, where casuarinas have been raised by the State Forest Department.The sea turtle’s egg-laying season began a month ago. Volunteers of the Chennai-based Students’ Sea Turtle Conservation Network (SSTCN) had written to the World Bank stating that the Forest Department should reverse the damage done.The SSTCN also wanted the Bank to provide funds for taking up transplantation work.Akila Balu, co-ordinator, SSTCN, said after the tsunami, the World Bank funded an Emergency Tsunami Reconstruction Project (ETRP) in Tamil Nadu.Under this programme, the State Forest Department had taken up the work of raising casuarina plantations to act as a bio-shield on the coastline. The casuarina saplings were planted right up to the high-tide line. In the process, it eliminated large stretches of sea turtle nesting habitat.Department’s defenceA senior Forest Department official said casuarinas had not been raised all along the State coastline.Adequate space had been provided between each sapling through which the turtles could enter the sand and lay eggs.The ETRP is a conservation-oriented programme, and so far the department has not received any complaints that the casuarina plantation had affected egg-laying of the Olive Ridleys, the official said.“In most of the areas, the saplings are not touching the high-tide line. If we plant closer to the line, the saplings will not survive. On the whole, the plantation will surely not affect the egg-laying turtles,” the official added.

The Hindu : Tamil Nadu / Chennai News : “Casuarina plantations affecting turtle nesting habitats”

To find out more, visit the SSTCN website.

cross-posted at the Olive Ridley Crawl

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Posted by: oliveridley | Thursday, September 27, 2007

Now we know where Juvenile sea turtles Hide

You see the hatchlings as they dig out of the nests all small and helpless and make a beeline towards the sea. You see the adult female as she comes back to lay her eggs. You see adult males when you go snorkeling , but the juveniles had kept a low profile, until now…

Sea turtles’ mystery hideout revealed – LiveScience – MSNBC.com

Once sea-turtle hatchlings hit the surf, they vanish for up to five years. Where the half-dollar-size tots spend these ‘lost years’ while ballooning to the size of dinner plates has been a mystery, until now.

New research, published in the online edition of the journal Biology Letters, indicates the green sea turtles (Chelonia mydas) hide out in the open ocean, where they feast on jellyfish and other marine creatures.

Turns out that they’ve been “hiding out” in the open ocean eating meat to augment their vegetarian adult diet. I have not seen the paper (reference below), but the study was based on an analysis of their shell content. Carbon and Nitrogen isotope analysis was used as a marker for diet and location.

The ‘lost years’ of green turtles: using stable isotopes to study cryptic lifestages

Kimberly J. Reich, Karen A. Bjorndal, Alan B. Bolten

Archie Carr Center for Sea Turtle Research, Department of Zoology, PO Box 118525, University of Florida, Gainesville, FL 32611, USA

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