Nachhaltige Fischerei | Greenpeace Deutschland

Decades of bad fishing practices have left our oceans in a tragic state. Many species which were once common-place are now threatened, dwindling to the point where there aren’t enough to catch and make a profit. Over 90% of predatory species like cod and tuna have already been caught and, according to the UN, 70% of fisheries are overfished.

Numbers of fish are dropping faster than they can reproduce and this is causing profound changes to life in our oceans. In reality, there aren’t plenty more fish in the sea.

Die Fischereiindustrie ist zu Hightech geworden und riesige Schiffe verwenden Sonar, um Fischschwärme punktgenau zu finden. Riesige Netze fangen Fische in großer Zahl. Diese Schiffe sind auch schwimmende Fabriken mit Verarbeitungs- und Verpackungsanlagen, um ihren Fang effizienter zu handhaben. All dies bedeutet, dass jetzt ein Vielfaches mehr Fische gefangen werden können, als tatsächlich übrig sind.

QUELLE: https://www.greenpeace.org.uk/challenges/sustainable-fishing/

Ausgewählter Beifang des Tiefseetrawlers „Chang Xing“ in internationalen Gewässern der Tasmanischen See. Greenpeace unterstützt zusammen mit mehr als tausend Wissenschaftlern die Forderung nach einem Moratorium für die Grundschleppnetzfischerei auf hoher See wegen der enormen Menge an Meereslebewesen, die durch diese Fangmethode zerstört wird.

Überfischung leert die Meere

Während traditionelle Arten verschwinden, werden andere Arten gezielt und sogar umbenannt, um sie attraktiver zu machen. Zum Beispiel wurde der patagonische Seehecht als der appetitlichere chilenische Wolfsbarsch neu erfunden. Flotten wagen sich auch in weiter entfernte Gewässer vor Arktis und Süd Ozeane, um dort die Fischpopulationen zu verwüsten.

Die von diesen Schiffen verwendeten Fangmethoden sind oft sehr destruktiv. Grund- und Baumkurren ziehen Netze über den Meeresboden, um Plattfische wie Seehecht und Seezunge zu fangen. Aber sie zertrümmern auch alles, was sich ihnen in den Weg stellt, und zerstören zerbrechliche Korallenriffe. Und die meisten Fangmethoden sind sehr wahllos, viele andere Arten werden zufällig gefangen. Zu diesem Beifang gehören Schildkröten, Haie, Delfine und andere Fische, die oft tot oder sterbend ins Meer zurückgeworfen werden.

There’s a human cost too. Industrial fishing means small-scale fishers using more traditional methods are suffering. In the UK, smaller boats are finding it hard to make enough money and communities in many fishing ports are economically deprived. The number of fishers has also halved in the last 20 years. Elsewhere in the world, people who depend on fish for food and income are seeing their stocks disappear as foreign vessels trawl in their waters.

Unfaire Fangquoten

Die Art und Weise, wie die britische Regierung die Fangquoten zuweist, spielt dabei eine große Rolle. Die Quoten haben sich in den Händen einer kleinen Anzahl von Multi-Millionen-Pfund-Unternehmen konzentriert. Nur fünf Familien kontrollieren fast ein Drittel der britischen Fangquoten und mehr als zwei Drittel der Fangquoten werden von nur 25 Unternehmen kontrolliert. Im Vergleich zu kleineren Fischereibetrieben beschäftigen diese großen Unternehmen weniger Mitarbeiter, wenden weniger nachhaltige Fangmethoden an und weniger Geld fließt in die lokale Wirtschaft.

Unsere Regierung hat bereits die Macht, die Verteilung der Quoten zu ändern. Greenpeace setzt sich für ein gerechteres Zuteilungssystem ein, das eine lokale, nachhaltige Fischerei begünstigt, die zur Schaffung von Arbeitsplätzen und zur Erholung der Fischbestände beiträgt.

We’re also taking on the corporate giants plundering our oceans. Thai Union, the biggest tuna company in the world and owner of John West, was turning a blind eye to appalling conditions for workers and destructive fishing practices. But then an outcry from thousands of people around the world forced Thai Union to clean up its operations.

Und wir müssen mehr Schutzgebiete auf See schaffen. Ein Netzwerk von Meeresschutzgebiete wird Fischen und anderen Meereslebewesen Zufluchtsorte bieten, damit sie vor der Bedrohung durch industrielle Fischereiflotten gedeihen können. Mit Klimawandel Wenn wir unsere Ozeane noch mehr bedrohen, müssen wir ihnen so gut wie möglich helfen.

In Bildern: Nachhaltige Fischerei

An Indonesian crew member displays a turtle caught on the end of a bait line of a Korean longliner, the 'Shin Yung 51'. The location is within the Exclusive Economic Zone of the Republic of Kiribati. Sharks, turtles, dolphins and albatrosses can often end up as unfortunate by-catch of longline fishing. Greenpeace are on the Pacific Leg of the 'Defending Our Oceans' global expedition. They are calling for an immediate end to pirate fishing, a 50% reduction in the amount of Pacific tuna caught, and a global network of Marine Reserves. Yellow Fin and Big Eye tuna stocks in the Central and Western Pacific are destined to be critically over-fished within three years if the relentless fishing of the two Tuna species continues at current rates. © Greenpeace / Alex Hofford
A Vietnamese crew member releases a shark back into the ocean which was caught on the end of a bait line of a Korean longliner, the 'Shin Yung 51'. whilst fishing for tuna. The location is within the Exclusive Economic Zone of the Republic of Kiribati. Sharks, turtles, dolphins and albatrosses can often end up as unfortunate by-catch of long-line fishing. Yellow Fin and Big Eye tuna stocks in the Central and Western Pacific are now drastically low due to pirate fishing and the over fishing of stocks by foreign, industrial nations. Local fishermen struggle to compete in these waters as sophisticated fishing equipment puts them out of business. Greenpeace are calling for an immediate end to pirate fishing, a 50% reduction in the amount of Pacific tuna caught, and a global network of Marine Reserves to tackle the problem of over fishing. © Greenpeace / Alex Hofford
Selected bycatch discarded from the deep sea trawler 'Chang Xing' in international waters in the Tasman Sea. Greenpeace along with more than a thousand scientists are supporting the call for a moratorium on high seas bottom trawling, because of the vast amount of marine life that is destroyed by this fishing method. © Greenpeace / Roger Grace
Tururuko, head of the local fishermen, directs the crew every day during fishing activities in Pemba, Quirimbas, northern Mozambique. © Francisco Rivotti
A team from the Greenpeace ship MV Esperanza documents discarded bycatch on the deck of a Spanish flagged bottom-trawler, the Ivan Nores, in the Hatton Bank area of the North Atlantic, 410 miles north-west of Ireland. Bottom-trawling boats, the majority from EU countries, drag fishing gear weighing several tonnes across the sea bed, destroying marine wildlife and devastating life on underwater mountains - or 'seamounts'. © Greenpeace / Kate Davison
Schools of fish circle a fish aggregating device (FAD) in the Western Pacific Ocean. Around 10% of the catch generated by purse seine FAD fisheries is unwanted bycatch and includes endangered species of sharks and turtles. The catch of large amounts of juvenile bigeye and yellowfin tunas in these fisheries is now threatening the survival of these commercially valuable species. Greenpeace is calling for a total ban on the use of fish aggregation devices in purse seining and the establishment of a global network of marine reserves. © Paul Hilton / Greenpeace
Shamus Nicholls on his boat "Little Lauren" catching bass with a handliner. He is one of the fishermen that support sustainable fishing in small scale boats. © David Sandison / Greenpeace
Fishermen use pole and line fishing method to catch skipjack tuna. Pole and line fishing is a selective and therefore more sustainable way to catch tuna as only fish of a certain size are caught, leaving juveniles to grow to spawning age and replenish the stock in the future. Small bait fish are thrown over the side of the boat to lure the tuna to the water surface. The fishermen use the acceleration of the fish as they race to get their prey, hook them and fling them onto the ship's flat deck. © Greenpeace / Paul Hilton
Spanish Albatun Tres is 115 mt long and is the world’s largest tuna purse seiner. Vessels such as this travel from one fish aggregation device (FAD) to another and spread their huge nets to catch everything swimming around the FAD. Around 10% of the catch generated by purse seine FAD fisheries is unwanted bycatch and includes endangered species of sharks and turtles. The catch of large amounts of juvenile bigeye and yellowfin tunas in these fisheries is now threatening the survival of these commercially valuable species. Greenpeace is calling for a total ban on the use of fish aggregation devices in purse seining and the establishment of a global network of marine reserves. © Paul Hilton / Greenpeace
The fishermen pull the skipjack tuna fish onto the boat in Flores sea, East Nusa Tenggara. The fishermen in Larantuka are famous for using sustainable methods, pole and line, on fishing tuna. Pole and line fishing is a traditional method of fishing, unchanged for generations, and often used by local fishers in coastal communities, using live bait, the fishing targets surface schooling skipjack. © Jurnasyanto Sukarno / Greenpeace

QUELLE: https://www.greenpeace.org.uk/challenges/sustainable-fishing/