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Does the narrow-clawed crayfish, Pontastacus leptodactylus (Eschscholtz, 1823) (Decapoda: Astacidea: Astacidae), contributes to the decline of the noble crayfish, Astacus astacus Linnaeus, 1758 in the Belarusian Lakeland?

Journal of Crustacean Biology
The noble crayfish, Astacus astacusLinnaeus, 1758, is the rarest crayfish species in Belarus, distributed mainly within the Belarusian Lakeland, a region of numerous lakes of glacial origin in northern Belarus.
K. Śliwińska, A. Alekhnovich
semanticscholar   +1 more source

Dissection of a Crayfish (Astacus astacus)

2016
Availability: The crayfish is found in freshwater streams and ponds all over the world. There are about 300 species worldwide (Cambarus, Procambarus, Astacus and Orconectes). They are omnivorous, feeding on fish, tadpoles, worms, insects and plants. We can purchase fresh crayfishes from fishing companies supplying restaurants.
Péter Lőw   +2 more
openaire   +1 more source

Some physico-chemical properties of Astacus astacus hemocyanin

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1981
1. 1. Some physico-chemical properties of freshwater crayfish Astacus astacus were established i.e. amino acid composition, terminal amino acids, isoelectric point and a number of subunits with their molecular weights. 2. 2. Glutamic acid and asparatic acid compose 25% of all amino acids. 3. 3. N-terminal amino acid is blocked. 4.
Anna Rogala, Roman Gondko
openaire   +1 more source

Comparative studies of egg proteins of Astacus astacus and Astacus leptodactylus (crustacea, decapoda)

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1977
Abstract 1. 1. Composition of egg proteins of Astacus astacus and A. leptodactylus is compared by different methods. 2. 2. Disc electrophoresis reveals seven fractions in each case, four of them being identical in both species. 3. 3. By immunodiffusion (double diffusion test) three precipitin lines can be obtained, with one of them fusing.
openaire   +1 more source

A description of postembryonic development of Astacus astacus and Pontastacus leptodactylus

, 2020
Morphology in general and developmental morphology in particular provide us with an insight into the evolution, phylogeny, ecological features, behavior, and life cycle of organisms.
T. Kawai, A. Kouba
semanticscholar   +1 more source

The cytotoxic reaction of hemocytes from the freshwater crayfish, Astacus astacus

Cellular Immunology, 1985
Crayfish hemocytes displayed cytotoxic capacity towards all tested mammalian tumor and nontumor cell lines. The ratio required for the cytotoxic action of effector cells to target cells was at least 1:1. The lysis of the target cells required a minimum of 1 hr to become detected.
K, Söderhäll   +3 more
openaire   +2 more sources

Astacus astacus.

2010
The Noble Crayfish (Astacus astacus) is a widespread species, it has undergone significant declines in population numbers due to non-indigenous species, crayfish plague, habitat loss and over-harvesting. Estimates of rate of decline in Sweden, Finland and Norway are as high as 78%, ~20% and 61% respectively over a 3 generation length period.
L. EDSMAN   +3 more
openaire   +1 more source

Application of microsatellite analysis on Astacus astacus and Astacus leptodactylus populations from Croatia – preliminary results

2015
Recently, microsatellite markers have been successfully applied to reveal genetic patterns in populations of different European crayfish species. In this preliminary research, we used four microsatellites primarily aiming to check their possible usefulness in detecting hybrids between noble and narrow-clawed crayfish.
Štambuk, Anamaria   +4 more
openaire   +3 more sources

High-throughput discrimination of bacteria isolated from Astacus astacus and Astacus leptodactylus

2013
Bacterial diseases and pathogens of crayfish are common, widespread, and occasionally causing serious mortalities. In order to take rapid measures for correct treatment of crayfish diseases, the turnover time and accuracy in bacterial identification is an issue. Bacteria isolated from tissues of apparently healthy Astacus astacus and A.
Strunjak-Perović, Ivančica   +8 more
openaire   +1 more source

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