Lobster traps in Rustico harbour, Prince Edward Island, Canada, North America

Almaco jack (Seriola rivoliana), in the pen at a fish farm off The Big Island, Hawaii, United States of America, Pacific, North America

Almaco jack (Seriola rivoliana), in the pen at a fish farm off The Big Island, Hawaii, United States of America, Pacific, North America

Pen containing almaco jacks (Seriola rivoliana), off the Big Island of Hawaii, United States of America, Pacific, North America

Grey reef sharks (Carcharhinus amblyrhynchos) caught in fish trap, Takume Atoll, Tuamotus, French Polynesia, South Pacific, Pacific

Intha Fishermen, Inle Lake, Shan State, Myanmar (Burma)

Intha fishermen, Inle Lake, Shan State, Myanmar (Burma), Asia

Intha fisherman, leg-rowing, Inle Lake, Shan State, Myanmar (Burma), Asia

An elderly woman working in water filled rice terraces with fish traps, Tulgao Village near Tinglayan, The Cordillera Mountains, Kalinga Province, Luzon Island, Philippines, Southeast Asia, Asia

An elderly woman working in water filled rice terraces with fish traps, Tulgao Village near Tinglayan, The Cordillera Mountains, Kalinga Province, Luzon Island, Philippines, Southeast Asia, Asia

A traditional fish trap, made out of bamboo, captures small reef fish near Alor in the Lesser Sunda Islands of Indonesia.

Man taking a fish from a fish tank, Gaideliai rural tourism homestead on the edge of Srovinatis lake, Ginuciai, Aukstaitija National Park, Lithuania, Europe

A traditional fish trap, made out of bamboo, captures small reef fish near Alor in the Lesser Sunda Islands of Indonesia.

Women trapping fish with nets, Parque Nacional dos Lencois Maranhenses, near Atins, Lencois Maranhenses, Brazil, South America

Fisherman, Inle Lake, Shan State, Myanmar (Burma), Asia

Fisherman, Inle Lake, Shan State, Myanmar (Burma), Asia

Man making a fish trap, village near Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

Fisherman, Inle Lake, Shan State, Myanmar (Burma), Asia

Fisherman, Inle Lake, Shan State, Myanmar (Burma), Asia

Man making a fish trap, village near Siem Reap, Cambodia, Indochina, Southeast Asia, Asia

Fisherman, Inle Lake, Shan State, Myanmar (Burma), Asia

Fish trap on reef, Cap de Creus, Costa Brava, Spain, Mediterranean, Europe

Fish trap on reef, Cap de Creus, Costa Brava, Spain, Mediterranean, Europe

Drift net and fish traps. Indo Pacific

Fish trap, Mahe, Seychelles, Indian Ocean

Entrance to fish trap, Mahe, Seychelles, Indian Ocean

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

View of tangled fishing line at Olowalu Reef on the west side of the island of Maui, Hawaii, USA.

Fish trap, Mahe, Seychelles, Indian Ocean

Fish trap, Blackweir, Cardiff, Wales, UK (rr)

Fish trap, Mahe, Seychelles, Indian Ocean

Intha fisherman holding traditional fishing net, Inle Lake, Nyaung Shwe, Shan State, Myanmar, (Burma)

Bamboo Fish Trap, Lembeh Strait, Bitung, Manado, North Sulawesi, Indonesia, Pacific Ocean

Intha fisherman with fish trap in the evening light, Inle Lake, Shan State, Myanmar, Burma, Asia

Intha fisherman with fish trap in the evening light, Inle Lake, Shan State, Myanmar, Burma, Asia

Fish trap in the evening mood in Dierhagener harbour in Western Pomerania Lagoon Area National Park, Dierhagen, Fischland-Darss-Zingst, Mecklenburg-Western Pomerania, Germany

Intha fisherman with fish trap in the evening light, Inle Lake, Shan State, Myanmar, Burma, Asia

Intha fishermen with fish traps in the evening light, Inle Lake, Shan State, Myanmar, Burma, Asia

Handmade lobster traps on Ile d'Entree, Entry Island, Iles de la Madeleine, Magdalen Islands, Quebec Maritime, Canada, North America

Inle lake fisherman standing on a longtail boat in the distinctive leg rowing stance used by the Intha people, Inle lake, Myanmar, Asia

A lot of green traps used in Portugal to catch octopus and crabs

Fisherman puts crab inside octopus traps in Alvor, Algarve, Portugal, Europe

Fishing nets and marine equipment, Pittenweem, Scotland, United Kingdom, Europe

Fishermen's huts with lobster baskets in the port of North Rustico, Prince Edward Island, Canada, North America

Small crabs used as bait in octopus traps in Alvor, Algarve, Portugal, Europe

Pattern made of green traps used in Portugal to catch octopus and crabs

Old silvery shimmering wood on a fishing cabin, Newfoundland

Dinghy and lobster pots on boat ramp, Ring of Kerry, County Kerry, Ireland, Europe

Fishing traps at the port of Emborio, Chalki Island, Dodecanese, Greece, Europe

Fish traps in the first morning light, Iznang, Lake Constance, Konstanz district, Baden-Wuerttemberg, Germany, Europe

Lobster fisherman with herring bait. Digby Neck, Bay of Fundy, Nova Scotia, Canada

Buoys and lobster traps Maine

Lobster traps on dock in Maine

Lobster traps on a dock Maine

Fish trap basket, Boardroom dive site, Pura Island, near Alor, Banda Sea, Indonesia