Tom Gilks / Fishermen preparing nets, Remba Island, Lake Victoria, Kenya.

Jeff Rotman / Fishermen clean Atlantic Cod (Gadus morhua) on deck of fishing trawler, with herring gulls (Larus argentatus) flocking in the background. Stellwagen Banks, New England, United States, North Atlantic O...

Jeff Rotman / Fishermen hauling back trawler net on fishing trawler. Stellwagen Banks, New England, United States, North Atlantic Ocean Model released.

Jeff Rotman / Fisherman hauling back trawler net on fishing trawler. Stellwagen Banks, New England, United States, North Atlantic Ocean Model released.

Staffan Widstrand,Staffan Widstrand / Fishermen in boats, Pulicat Lake, Tamil Nadu, India, January 2013.

Cheryl-Samantha Owen / Fishing for West coast rock lobster (Jasus lalandii) aboard the James Archer (Oceana fisheries). Crew haul up lobster trap. Saldanha Bay and St. Helena Bay, Western Cape, South Africa.

Cheryl-Samantha Owen / West coast rock lobster (Jasus lalandii) commercial fishing boat (James Archer) leaves the Saldhana Bay harbour before the break of dawn. The lights of the town and the lighthouse flash on the horizon...

Cheryl-Samantha Owen / The crew of the James Archer, Oceana fisheries, throws baited lobster traps into the ocean to catch West coast rock lobster (Jasus lalandii). View from cabin window, Saldanha Bay and St. Helena Bay, W...

Cheryl-Samantha Owen / Crew of the James Archer (Oceana fisheries) pull up a lobster trap during West coast rock lobster (Jasus lalandii) fishing, Saldanha Bay and St. Helena Bay, Western Cape, South Africa.

Juergen Freund / Whale shark (Rhincodon typus) near a fishing device called ?Bagan?, a stationary outrigger boat, with a net between outriggers and strong light at night to attract anchovies and scad. The whale sharks...

Barrie Britton / Snow covered fishing boats in Sitka Harbour, Alaska. Photograph taken on location for BBC TV series 'Nature's Great Events', March 2008.

Ingo Arndt / Salmon fishing boat, Prince William Sound, Alaska, USA. June 2013.