Because many are at the top of the food chain, their disappearance could also disrupt delicately balanced ecosystems.
In the case of tuna species, "the most efficient way to avoid collapse is to shut down the fisheries until stocks are rebuilt to healthy levels," the researchers concluded.
22 May 2011
Tuna industry must not strip PNG resourcesBY PAUL OATES
While this is good news, it does beg the question of what evidence was brought to the table before the decision was made to go ahead with the new processing plants.
While PNG will benefit from increased employment opportunities, there have been media reports that overseas workers are being employed in this industry.
In addition, while PNG will earn valuable foreign exchange from the export of canned tuna, if future studies indicate a decreasing resource, will a future government be able and prepared to restrict or halt production?
Hopefully, future PNG populations will continue to enjoy what is currently available.
The Philippines is well known for having effectively stripped many of its marine resources beyond the point of no return. We hope this will not be allowed to happen in PNG.