Suspected illegal fishing vessel with shark fins hanging up to dry on the aft deck, encountered near Saint Helena, South Atlantic Ocean

A view of the industrial and militarized Russian seaport city of Murmansk on the northern shore of the Kola Peninsula, Murmansk Oblast, Russia, Arctic, Europe

Harbour porpoise (Phocoena phocoena) caught in herring weir (fish trap). Porpoises trapped in herring weirs often die as a result of efforts to remove them (by 'seining' the weir as shown here) but latterly cooperation between fishermen and researchers has improved the situation. Five porpoises were trapped in this weir and none were thought to have survived this operation. Grand Manan, Bay of Fundy, Canada

Sardine fishing boat "Jastreb, " based in Kali on Ugljan Island, at a fishing site off of Pag Island in the Adriatic, Croatia

Fishermen pushing their fishing boat into the sea, Somatheeram Beach, Malabarian Coast, Malabar, Kerala state, India, Asia

Fishermen pushing their fishing boat into the sea, Somatheeram Beach, Malabarian Coast, Malabar, Kerala state, India, Asia

Fishermen pushing their fishing boat into the sea, Somatheeram Beach, Malabarian Coast, Malabar, Kerala state, India, Asia

Harvesting fish from net pens belonging to Kampachi Farms offshore of Kona, the Big Island, Hawaii, during the summer, Island of Hawaii, Hawaii, United States of America