Young man with fish caught on a line, northeast coast, island of Praslin, Seychelles, Indian Ocean, Africa

cod, gadus sp, line-caught fish, arbroath, angus, scotland

Grey reef shark (Carcharhinus amblyrhinchos) being hooked with long line, Rongelap, Marshall Islands, Pacific

Skipjack tuna (Katsuwonus pelamis) hooked on fishing line, Kailua-Kona, Hawaii, United States of America, North America

Piranha (Pygocentrus nattereri), a carnivorous fish, caught on a line, southern Pantanal, Mato Grosso do Sul, Brazil, South America

Piranha (Pygocentrus nattereri), a carnivorous fish, caught on a line, southern Pantanal, Mato Grosso do Sul, Brazil, South America

Skipjack tuna (Katsuwonus pelamis) hooked on fishing line, Kailua-Kona, Hawaii, United States of America, North America

Skipjack tuna (Katsuwonus pelamis) hooked on fishing line, Kailua-Kona, Hawaii, United States of America, North America

Skipjack tuna hooked in fishing line, Katsuwonus pelamis, Kailua-Kona, Hawaii, United States of America, Pacific

Fisherman pulls skipjack tuna hooked in fishing line, Katsuwonus pelamis, Kailua-Kona, Hawaii, United States of America, Pacific

Aerial of dead Humpback whale (Megaptera novaeangliae) caught in fishing line. Gulf of Maine, USA. (rr)

Piranha (Pygocentrus nattereri), a carnivorous fish, caught on a line, southern Pantanal, Mato Grosso do Sul, Brazil, South America

Piranha (Pygocentrus nattereri), a carnivorous fish, caught on a line, southern Pantanal, Mato Grosso do Sul, Brazil, South America

Piranha (Pygocentrus nattereri), a carnivorous fish, caught on a line, southern Pantanal, Mato Grosso do Sul, Brazil

Piranha (Pygocentrus nattereri), a carnivorous fish, caught on a line, southern Pantanal, Mato Grosso do Sul, Brazil

Sept 25, 2008 On docks of Morro Bay California fisherman Dave Rose at his processing wharf unloading his catch of Black Gill Rock Fish, caught on sustainable long-lines. A new wave in sustainable commercial fishing is pushing fisherman to switch from higher impact methods of harvesting fish like trawling- to hook and line or long line harvest, United States of America

A swordfish (Xiphias gladius) caught by fishing line and bait by the underside of a boat; Islamorada, Florida, United States of America

A swordfish (Xiphias gladius) caught by fishing line by the underside of a boat; Islamorada, Florida, United States of America

A swordfish (Xiphias gladius) caught by fishing line under the water; Islamorada, Florida, United States of America