Magdeburg (dpa) - Climate change offers for the fishing industry from the perspective of representatives of the association in addition to some problems and opportunities.

At least in the medium term, an increase in biodiversity and fishing potential in the middle and northern latitudes is to be expected, reported the German Fisheries Association.

Until Thursday, the industry advises current challenges at the German Fishing Day in Magdeburg. The focus is on the effects of climate change. The German environmental aid called for to curb overfishing and allow numerous fish stocks recovery.

For the deep-sea fisheries is positive that by climate change, some heat-loving fish are increasingly found in the North Sea, said the Association Chief of the German Deep Sea Fishing, Uwe Richter. As an example he called sardines or tuna. If the stocks continued to increase there, they could soon be commercially exploited. In the northern latitudes, climate change is causing more mackerel and cod populations, Richter said.

Higher water temperatures also ensure that introduced species feel at home in German lakes and rivers - especially the Chinese crab or the signal crayfish. For the crab, there is quite a market, because Asia-restaurants like to use them, it was said by the Fisheries Association. But that is at most a niche. The Saxony-Anhalt State Fisheries Association nevertheless called for the imported crabs to be marketed as food.

To contain so-called invasive species and at the same time to use them as food is sustainable, said head of association Detlef Thiele. Trapped animals usually have no natural predators, spread quickly and threaten native species.

Especially inland fishermen, however, see problems with climate change. Lack of snow and rain in many regions cause water shortages in the ponds, according to association representative Bernhard Feneis.

But even Feneis sees positive effects of the climate change debate for his industry. "It's good that the population is thinking more." Domestic fish such as carp and trout are in demand, especially in the direct marketing, the pond farmers could demand good prices. "Sustainability is always there when you produce in your own country," said Feneis.

The Fisheries Association is trying to promote its entire product range as an environmentally friendly and protein-rich alternative to meat. The production uses much less water and causes less CO2 emissions, count the association representatives. In addition, wild caught fish is free until its end in the safety net.

The German Environmental Aid (DUH) draws a less joyful picture. 41 per cent of fish populations in the European Union are overfished. "Ending overfishing is the easiest way to help our fish populations and make them more resilient to the effects of the changing climate," said DUH representative Ulrich Stöcker.

Consumers recently ate more fish. Mathematically, every year last year, Germany reached 14.4 kilograms, 300 grams more than in 2017, as the Fisch-Informationszentrum recently announced. Importantly, however, are mainly imported fish and not the native species from the North Sea, Baltic Sea and fish farming.

List of invasive animal and plant species in the EU via Nabu

Program of the German Fisheries Day

Encyclopedia of the FIZ on fish and seafood