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รบกวนช่วยแปลบทความภาษาอังกฤษให้หน่อยคับ
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Some sharks,barracuda completely gone in Caribbean
The big fish that prowl the Caribbean reefs-----gaping groups,sharp-toothed barracuda and gigantic sharks----- are completely gone in some place due to overfishing,a new study says.
The problem is worst in the most densely populated Caribbean countries,where fishers have wiped entire reefs clean of large predetors have begun to fill in niches left by the big hunters----sending coral reefs into the tailspin.
The new research,based on a public database of fish sightings by trained volunteer scuba drivers,provides one of the most comprehensive glimpses so far of the decline in large Caribean predators.
"Healthy and intact coral reefs need large predatory fish in order to continue to provide human societies with food and with beauty,"said study author Chris Stallings,a researcher at Florida State University's Coastal and Marine Laboratory.
Phillip Kramer,director of the Caribean programme for the non-profit group the Nature Conservancy,agreed that you can't take the large carnivores out of the system. "It's like the deer in Yellowstone without the wolves----you'll have cascaging impacts," said Kramer,who was not involved in the research.
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cabrill 
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| เขียนเมื่อ |
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7 ก.ค. 53 16:58:21
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