Übersetzung für "Signal crayfish" in Deutsch

The more robust North American signal crayfish has therefore been introduced in many lakes and waterways.

The lake also has strong stocks of signal crayfish, pike and bream.

The stock of signal crayfish has strengthened substantially in recent years.

Outstanding fish species are perch, gosh, pike, whitefish and signal crayfish.

The signal crayfish is currently the most common cancer in southern Sweden.

Signal crayfish (Pacifastacus leniusculus) is introduced to Sweden from North America.

Keep in mind that we have both River Crayfish and Signal Crayfish in Eda.

Signal crayfish may be fished fr.om second Friday in August at 17.00 and 5 days ahead.

Walleye and Signal crayfish have been implanted.

Swan mussel (Anodonta cygnea), Noble crayfish (Astacus astacus), Signal crayfish (Pacifastacus leniusculus), Redswamp crayfish (Procambarus clarkii)

Noble crayfish (Astacus astacus), Signal crayfish (Pacifastacus leniusculus), Redswamp crayfish (Procambarus clarkii)

Species like Giant hogweed, signal crayfish, Zebra mussels and muskrats now impact human health, cause substantial damage to forestry, crops and fisheries, and congestion in waterways.

Today, in western Lake Constance are found: the North American spinycheek crayfish (Orconectes limosus), which was introduced into European waters in the mid-19th century to increase the yield, occasionally the Chinese mitten crab (Eriocheir sinensis), and in the lake's tributaries, the signal crayfish (Pacifastacus leniusulus).

Signal crayfish are fairly common in the lake, but fishing for these is restricted to land owners.

The species was once very common, but died out in the early 19. century, after two species, the Signal Crayfish (Pacifastacus leniusculus (Dana)) and the Red Swamp Crayfish (Procambarus clarkii (Girard)), were introduced to its biotope.

In Salaca you may catch only the signal crayfish, which has been brought to Latvia and which are alien to our fauna, but here are no limitations for catching them.

Authorised areas for red swamp crayfish and signal crayfish are the Rivers Ebro, Arga, Aragon, Ega and Cidacos, always following the specific areas and conditions that should be consulted in the fishing plan annually published by the Department for the Environment.

Most of these immigrants remain quite hidden from our view and their occurrence has no larger consequences to the native fauna and flora, but a small number turns out to become ecologically problematic because they change valuable ecosystems or negatively affect native species. Such species are, for example: Asian knotweed (Fallopia sp.) or the signal crayfish (Pacifastacus leniusculus) from North America, which trasmits a fungal disease, the water mould, to the crayfish species native to Germany, while being immune to it himself.