[Home]   [Full version]  

Philippines work to save giant clams

Dec 27 ,General Science


A new effort is under way in the Philippines to stem the declining population of the world's largest clams, called taklobos.

A "clam garden" was built about 250 feet off the shore of Pico de Loro Cove in Batangas to provide new habitat for the giant clams, which can reach five feet in diameter and weigh up to 570 pounds, The Manila Times reported Thursday. The reseeding was accomplished using clams brought from Bolinao, Pangasinian, the newspaper said.

The conservation project is a joint effort of the Hamilo Coast, SM Investments Corp. and the World Wide Fund for Nature.

The clams, Tridacna gigas, have been in steady decline in recent years because of over-harvesting for food and for the pet and curio trade, the newspaper said.

The bivalve mollusks, which used to thrive in the Indian and Pacific oceans, can live to more than a hundred years old. The taklobos "filter feeders" that improve water quality by removing planktonic debris. They also serve as dwellings for small fishes and crustaceans.

Copyright 2007 by United Press International

Related stories:

Bacteria, clams thrive in very cold water
The discovery this year of bacteria on the seabed below near-freezing Antarctica waters may be more evidence life is possible on other planets.
Group seeks protection for ugly New England fish
(AP) -- A ferocious-looking denizen of the deep that can gobble up whole urchins and crabs in a few swift chomps needs protection, according to a petition filed with the federal government.
Ocean floor geysers warm flowing sea water
An international team of earth scientists report movement of warmed sea water through the flat, Pacific Ocean floor off Costa Rica. The movement is greater than that off midocean volcanic ridges. The finding suggests possible marine life in a part of the ocean once considered barren.
New giant clam species offers window into human past
Researchers report the discovery of the first new living species of giant clam in two decades, according to a report to be published online on August 28th in Current Biology, a Cell Press publication. While fossil evidence reveals that the new species, called Tridacna costata, once accounted for more than 80 percent of giant clams in the Red Sea, it now represents less than one percent of giant clams living there.
Biologists find diatom to reduce red tide's toxicity
It's estimated that the red tide algae, Karenia brevis, costs approximately $20 million per bloom in economic damage off the coast of Florida alone. Scientists at the Georgia Institute of Technology have found that a diatom can reduce the levels of the red tide's toxicity to animals and that the same diatom can reduce red tide's toxicity to other algae as well. If scientists can learn to use this process to reduce the toxicity of red tide, they could reduce the vast amount of economic damage done to the seafood and tourism industries. The research appears as articles in press for the Web sites of the journals Harmful Algae and the Proceedings of the Royal Society of London B.
Study shows continued spread of 'dead zones'
A global study led by Professor Robert Diaz of the Virginia Institute of Marine Science, College of William and Mary, shows that the number of "dead zones"—areas of seafloor with too little oxygen for most marine life—has increased by a third between 1995 and 2007.
More acidic ocean could spell trouble for marine life's earliest stages
Increasingly acidic conditions in the ocean—brought on as a direct result of rising carbon dioxide levels in the atmosphere—could spell trouble for the earliest stages of marine life, according to a new report in the August 5th issue of Current Biology, a publication of Cell Press. Levels of acidification predicted by the year 2100 could slash the fertilization success of sea urchins by an estimated 25 percent, the study shows.
Prevailing theory of aging challenged in Stanford worm study
Age may not be rust after all. Specific genetic instructions drive aging in worms, report researchers at the Stanford University School of Medicine. Their discovery contradicts the prevailing theory that aging is a buildup of tissue damage akin to rust, and implies science might eventually halt or even reverse the ravages of age.

News discussion:

General Science news

[Home]   [Full version]