Narrow-clawed crayfish in Finland: Aphanomyces astaci resistance and genetic relationship to other selected European and Asian populations [PDF]
Knowledge and Management of Aquatic Ecosystems, 2020 The narrow-clawed crayfish (Pontastacus leptodactylus) is an alien species in Finland with only a few populations reported from the southeastern region during the last century.
Jussila Japo +4 more
doaj +6 more sources
Recovering Turkish narrow clawed crayfish (Astacus leptodactylus) populations carry Aphanomyces astaci [PDF]
Knowledge and Management of Aquatic Ecosystems, 2012 Crayfish stocks collapsed in Turkey in mid 1980’s due to crayfish plague epidemics, with up to 25% survival in some cases. The collapsed stocks have then recovered slowly and commercial crayfish fishery was reinitiated gradually ...
Kokko H. +5 more
doaj +3 more sources
Population molecular analysis among the narrow-clawed crayfish (Astacus leptodactylus) based on microsatellite DNA loci [PDF]
Iranian Journal of Animal Biosystematics, 2018 The genetic variation of narrow-clawed crayfish (Astacus leptodactylus, Eschscholtz, 1823) from Caspian Sea including two sites (Astara and Kiashahr), Aras region, Anzali lagoon and three rivers (Chafrood, Masuleh, and Siah Darvishan) was evaluated and ...
Majidreza Khoshkholgh, Sajad Nazari
doaj +2 more sources
Effect of chloride content in water on heart rate in narrow-clawed crayfish (Astacus leptodactylus) [PDF]
Knowledge and Management of Aquatic Ecosystems, 2009 A non-invasive method of recording cardiac activity was used to examine the impact of chloride level in water on narrow-clawed crayfish. This method permits one to record heart rate without any harm to the animal, and also locates changes in the shape ...
P. Kozák +5 more
doaj +3 more sources
Agrology, 2020 Crayfish Astacus leptodactylus Eschscholtz, 1823 is one of the largest commercial invertebrate internal waters of Ukraine. At the present time producers are unable to meet the needs of the people in this food. The largest number of crayfish (over 90%) is
M. O. Panchishnyy +3 more
doaj +3 more sources
Cheliped loss and abnormalities of the narrow-clawed crayfish, Pontastacus leptodactylus (Eschscholtz, 1823) (Crustacea: Decapoda: Astacidae) [PDF]
NaupliusHeterochely is an important phenomenon in decapod crustaceans. Nevertheless, it was rarely examined in freshwater crayfish. Therefore, the aim of this study was to investigate cheliped loss and abnormalities of the narrow-clawed crayfish, Pontastacus ...
Selçuk Berber +2 more
doaj +4 more sources
Elevated water temperature impairs gamete production in male narrow-clawed crayfish Pontastacus leptodactylus (Eschscholtz, 1823) [PDF]
Knowledge and Management of Aquatic Ecosystems, 2018 Water temperature is one of the major environmental factors affecting the reproductive output of freshwater crayfish. The reproduction of freshwater crayfish only occurs in a limited water temperature range and minor changes in water temperature could ...
Farhadi Ardavan +1 more
doaj +2 more sources
Aquaculture Reports, 2019 The extrusion of spermatophores using electrical stimulation and dissection techniques from the vas deference was performed to test the feasibility of artificial insemination in Pontastacus leptodactylus.
Ardavan Farhadi +2 more
doaj +2 more sources
Better Alone Than in Bad Company: Trophic Ecology of Co-Occurring Invasive and Native Crayfish. [PDF]
Ecol EvolThis study investigated and compared trophic interactions between invasive signal crayfish and native white‐clawed crayfish at sites of co‐occurrence and in allopatry. The presence of crayfish plague, body condition, and trophic niche traits were explored as possible factors that make invasive signal crayfish a strong competitor, enhancing its ...
Ghia D +8 more
europepmc +2 more sources
Some features of crustacean cultivation aquabiotechnology on the waters of energy facilities [PDF]
E3S Web of Conferences, 2021 The data on the state of the crayfish population on the territory of the Middle Volga before its regulation and after the formation of reservoirs are presented.
Kalaida Marina +2 more
doaj +1 more source