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Crayfish served with dill. Crayfish is a popular dish in Sweden and Finland, and is by tradition primarily consumed at a crayfish party, called kräftskiva, during the fishing season in August. The boil is typically flavored with salt, sugar, ale, and large quantities of stems and flowers of the dill plant.
The diet of the freshwater crayfish varies with age, but predominantly consists of decaying wood, leaves and their associated microbes. They may also eat small fish, insects, rotting animal flesh and other detritus when available. [2] A. gouldi is very long-lived, surviving for up to 60 years. It has previously been reported to attain weights ...
It is home to the world's three largest freshwater crayfish: the Tasmanian giant freshwater crayfish Astacopsis gouldi, which can achieve a mass over 5 kg (11 lb) and is found in rivers of northern Tasmania [23] the Murray crayfish Euastacus armatus, which can reach 2.5 kg (5.5 lb), although reports of animals up to 3 kg (6.6 lb) have been made.
Molluscs are a large phylum of invertebrate animals, many of which have shells. Edible molluscs are harvested from saltwater, freshwater, and the land, and include numerous members of the classes Gastropoda (snails), Bivalvia (clams, scallops, oysters etc.), Cephalopoda (octopus and squid), and Polyplacophora (chitons).
Procambarus clarkii, known variously as the red swamp crayfish, Louisiana crawfish or mudbug, [3] is a species of cambarid crayfish native to freshwater bodies of northern Mexico, and southern and southeastern United States, but also introduced elsewhere (both in North America and other continents), where it is often an invasive pest.
The signal crayfish (Pacifastacus leniusculus) is a North American species of crayfish. It was introduced to Europe in the 1960s to supplement the North European Astacus astacus fisheries, which were being damaged by crayfish plague, but the imports turned out to be a carrier of that disease. The signal crayfish is now considered an invasive ...
The Everglades crayfish[2] (Procambarus alleni), sometimes called the Florida crayfish, the blue crayfish, the electric blue crayfish, or the sapphire crayfish, is a species of freshwater crayfish endemic to Florida in the United States. Its natural range is the area east of St. Johns River and all of Florida from Levy County and Marion County ...
Crayfish are an important part of the freshwater food web as they provide a source of food to many aquatic species and boost primary productivity by foraging on freshwater plants. The loss of crayfish in a freshwater environment is known to cause macrophyte growth, which can be a cause for eutrophication and an overall degradation in water quality.