Blog Tags: Bycatch
As mentioned in our recently released Wasted Catch report, whales, dolphins, porpoises and other marine life are victims of bycatch, which is the catch of non-target fish and marine animals. Whales can become entangled in nets or trail fishing lines and gear that wraps around their fins, causing injuries and distress as the animals struggle to swim and reach the surface for air.
Out on the water, fishermen are notorious for both catching non-target fish and for entangling or killing many other marine animals, including dolphins, seals, whales, and sea turtles. Known as “bycatch,” these victims usually end up dead and thrown back overboard. The severity of the bycatch problem around the world has been uncertain, until now, because it can be difficult to gather data about just how many animals are caught as bycatch
We can all agree that wasting food is unacceptable. So why are U.S. fisheries allowed to throw away perfectly edible seafood? Many fisheries toss fish and other species overboard, usually dead or dying, simply because it’s not the type of seafood they are trying to catch. And the government allows this wasteful practice. A new Oceana report published this week reveals nine of our country’s most wasteful fisheries.
Ocean conservationists talk a lot about "bycatch" and "discards." But what exacty do these terms mean? In each issue of Oceana magazine, fisheries scientist and Oceana board member Dr. Daniel Pauly breaks down a commonly used fisheries term. In the recent issue, Dr. Pauly explains these technical terms and how they contribue to overfishing.
The news is buzzing with stories about more than 250 stingrays that have stranded on beaches in the Mexican state of Veracruz three days ago. Mass strandings of any animal are analyzed carefully to determine if the strandings are indicators of environmental health. However, in the case of the stingrays, foul play is suspected by locals. There are reports that fishermen dumped these rays on the beach when emptying their nets.
“Walls of death.” Gillnets have often been described in this haunting way due to their devastating ability to catch all kinds of fish, as well as sea turtles, seals, dolphins, and even whales. Marine creatures of all sizes and species are indiscriminately snared and drowned in these death traps, and a recent report reveals that even birds are being killed by these sea nets. A study in the journal Biological Conservation reported that fishing vessels that deploy gillnets snare and drown at least 400,000 sea birds around the world every year. The actual figure could be even higher.
Sawfish have a reason to breathe a little easier today: The National Marine Fisheries Service (NMFS) has completed comprehensive status reviews under the Endangered Species Act (ESA), and has determined that five foreign species of sawfish meet the definition of “endangered” under the Act. Of course, this “victory” is bittersweet: no one is celebrating the fact that sawfish species are endangered, but rather that they now will finally receive the protections they so desperately need to recover their numbers.
Happy World Turtle Day! While World Turtle Day celebrates turtles that roam both the land and the sea, as well as tortoises, we at Oceana would especially like to recognize the magnificent species of sea turtles that roam throughout the world’s oceans. The seven species classified as sea turtles around the world are truly incredible: most undergo incredible long migrations – some as far as 1,400 miles –between their feeding grounds and the beaches where they nest. Some loggerhead sea turtles nest in Japan and migrate to Baja del Sur, Mexico, to forage before swimming across the Pacific Ocean again to return home! Amazingly, female sea turtles even return to the exact beach where they hatched as babies to nest and lay their eggs.
May 17th is the day to show your love for endangered sea turtles, whales, dolphins, and all sorts of marine creatures. Why? Because it’s Endangered Species Day! Today is the day to learn and share information about your favorite endangered animals and rally support around the creatures that need it most.
American photographer Doug Perrine, 60, captured this priceless image of a false killer whale mid-grin off the coast of Kona, Hawaii.
Less commonly known than the killer whale (or orca), the false killer whale is the third largest member of the oceanic dolphin family. Growing to 1,500 pounds and up to 20 feet long, the false killer whale looks like no dolphin you’ve seen before. Its small conical head lacks the “beak” we expect in common dolphins, and its flippers have a distinctive hump along the front edge.
False killer whales were first discovered by their fossils in 1843, and were assumed to be extinct. In fact, the species wasn’t discovered alive until fifteen years after the discovery of their fossils. Like the gregarious-looking fellow captured in the photo, false killer whales are intensely social, forming strong social bonds in groups of ten to twenty that belong to larger groups of up to 40 individuals in Hawaii or as many as 100 elsewhere. False killer whales travel and hunt together in broad bands that can be up to several miles wide, and they even share their food with other group members.
Unfortunately, the false killer whale’s population numbers in Hawaii are nothing to smile at – these social creatures have suffered major decline in the last 25 years. According to the National Marine Fisheries Service, aerial surveys showed about 400 false killer whales in 1989. More recent studies suggest the number today is closer to 150. As of November 2012, false killer whales were listed as endangered in Hawaii, due in large part to the creature’s vulnerability to be caught as bycatch by tuna and swordfish fisheries. The false killer whales become hooked or entangled in longlines when they take bait off of longline fishing hooks set for Hawaiian swordfish and tuna, a dangerous mistake that often turns deadly.
The future for false killer whales is in danger, but with education, advocacy, and increased respect and protections for these social and gregarious sea creatures, we can give the false killer whale something to smile about.
- Ocean Roundup: UN Sounds Alarm on Mangrove Disappearance, Brazil to Triple Marine Protected Areas, and More Posted Tue, September 30, 2014
- Recent Marine Fossil Discoveries Provide Insight on Ancient Ocean Inhabitants Posted Wed, October 1, 2014
- Meet a Tiny Crab Species That’s Not into Long-Term Relationships Posted Sat, September 27, 2014
- Video: Rare Blue Whale Footage Captured Off California Posted Tue, September 30, 2014
- Will EU Member States Live Up To Their Common Fisheries Policy Commitments? Posted Thu, September 25, 2014