As regular CFZ-watchers will know, for some time Corinna has been doing a column for Animals & Men and a regular segment on On The Track... particularly about out-of-place birds and rare vagrants. There seem to be more and more bird stories from all over the world hitting the news these days so, to make room for them all - and to give them all equal and worthy coverage - she has set up this new blog to cover all things feathery and Fortean.

Sunday, 16 February 2020

Bycatch driving Greater Scaup decline in Europe


11/02/2020

A new study has concluded that the wintering population of Greater Scaup in the Baltic Sea is likely to undergo a significant decline over the next three decades due to unsustainable levels of bycatch.

Greater Scaup is currently classified as Vulnerable on the European Red List of Birds. The south-west Baltic Sea supports one of the most important wintering populations across Europe, yet intensive fishing means that a large concentration of gillnets are being deployed at the same time as huge numbers of diving duck, including Greater Scaup, are present in these food-rich areas.

Suspecting that levels of bycatch were affecting diving duck populations, the researchers calculated the Potential Biological Removal (PBR) for Greater Scaup and modelled population changes.
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