Sentences with phrase «declining catch rates»

«Declining catch rates in Caribbean Nicaragua green turtle fishery may be result of overfishing.»

«These declining catch rates align with our survival rate estimates of green turtles exposed to the Nicaragua turtle fishery and population modelling, which suggested the fishery was not sustainable at high take levels reported in the 1990s,» said Dr. Cathi Campbell.

Not exact matches

It does not appear that Twitter's user base will catch up with its competitors anytime soon either as the rate of user growth has been declining since 2Q12.

The average catch rate per fishing trip (assuming average fishing effort in terms of nets used and trip length) revealed an overall decline from 6.5 turtles to 2.8 turtles caught, representing a 56 percent decline over two decades.

The steep declines in green turtle catch rates, the researchers maintain, indicate a potential decline of green turtle populations that use Nicaragua's foraging grounds, particularly smaller rookeries in the Caribbean.

In individual communities, catch rate declines ranged between 21 percent and 90 percent in green turtles caught over the 20 - year period.

Because catch rates are bound to decline when fish become shyer, our results suggest that catchability might be changing as well.