But fishing is proving deadly for harbour porpoises. When trapped in gillnets – a type of net that catches fish by trapping them through their gills – the porpoises suffocate and die. Bycatch ...

IN the course of our cruises, we have often harpooned porpoises of various species, and occasionally investigated the contents of the stomach. Sometimes the stomach was found to be empty ...

Most of the species on the list are threatened by the widespread use of one type of fishing gear – gillnets. These nets are difficult for dolphins and porpoises to spot visually or detect with their ...