Scientists look to past to help identify fish threatened with local extinction

Marine scientistshave developed a methodology to assess fish stocks that combines new data with archaeological and historical records – some dating back to the 8th Century AD.

Marine scientists from the University of Queensland, WCS (Wildlife Conservation Society) and other groups have developed a methodology to assess fish stocks that combines new data with archeological and historical records — some dating back to the 8th Century AD. In a study conducted in along the coast of Kenya, the researchers reconstructed species’ occurrences by combining modern underwater transect surveys and catch assessments with historical records that included observations from 18th century naturalists and data from archaeological sites including ancient middens dating back more than a thousand years.

Their analysis provided a more accurate assessment, finding that some species previously thought to be “Least Concern,” “Unevaluated,” or “Data Deficient” on the IUCN’s Red List of Threatened Species were actually threatened with local extinction. These included species of groupers, trevallies, rubberlips, and other fish. Further, the historical data identified species that were previously exploited in the region and most likely locally extinct.

The authors say their new method is inexpensive and could be important in filling in knowledge gaps in species extinction assessments.

Source:- Wildlife Conservation Society

Advertisements

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s