Results 21 to 30 of about 152 (118)
Трансформация экосистем, 2019 The narrow-clawed crayfish, an invasive hydrobiont of Lake Sevan appeared in the lake due to accidental introduction having occupied almost the entire territory of Lake Sevan, finding favorable conditions for its existence.
Evelina Kh. Ghukasyan +3 more
doaj +1 more source
Fecundity of the narrow-clawed crayfish Pontastacus leptodactylus in the water bodies of Belarus
Proceedings of the National Academy of Sciences of Belarus, Biological Series, 2023 Pre-larvae hatching fecundity and ovarian fecundity of narrow-clawed crayfish populations were estimated in the lakes and reservoirs of Belarus. Statistically significant differences in the fecundity of females from various water bodies were noted only for Lake Kichino.
openaire +1 more source
Crustaceana, 2009 Studies were carried out to evaluate the reproductive efficiency of the narrow-clawed crayfish, Astacus leptodactylus Eschscholtz, 1823, in three different populations in the lakes Apolyont, Iznik, and Manyas in Turkey. Crayfish were sampled monthly using fyke-nets of 34 mm mesh size from April 2002 until March 2003.
Berber, Selcuk, Mazlum, Yavuz
openaire +3 more sources
Vestnik MGTU, 2023 Fishing affects the population of crayfish, while it changes the size and age characteristics. The size and age parameters of two populations of the narrow-clawed crayfish Pontastacus leptodactylus in the Loktyshi (Brest Region) and Krasnoslobodskoe ...
Alekhnovich A. V.
doaj +1 more source
Update on the distribution of freshwater crayfish in Croatia
Knowledge and Management of Aquatic Ecosystems, 2011 Four indigenous European and two non-indigenous American freshwater crayfish species inhabit Croatian freshwater habitats. Generally, the noble crayfish (Astacus astacus), the narrow-clawed crayfish (Astacus leptodactylus) and the stone crayfish ...
Maguire I., Jelić M., Klobučar G.
doaj +1 more source
Biology, 2021 Immunity is an important component of invasion success since it enables invaders’ adaptation to conditions of the novel environment as they expand their range.
Paula Dragičević +6 more
doaj +1 more source
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 +1 more source
Knowledge and Management of Aquatic Ecosystems, 2006 The aim of this study was to compare survival and growth of juvenile narrow-clawed crayfish (Astacus leptodactylus) and signal crayfish (Pacifastacus leniusculus) fed only with experimental pellets (45% of proteins, 6% of fat, 20% crude fibre) under ...
ULIKOWSKI D., KRZYWOSZ T., ŚMIETANA P.
doaj +1 more source
STATUS OF FRESHWATER CRAYFISH IN LATVIA
Knowledge and Management of Aquatic Ecosystems, 2005 There are three crayfish species present in Latvia: the European noble crayfish (Astacus astacus), the narrow-clawed crayfish (Astacus leptodactylus), and the North-American signal crayfish (Pacifastacus leniusculus) species. Probably only noble crayfish
ARENS A., TAUGBØL T.
doaj +1 more source
Acta Natura et Scientia, 2022 The crayfish population dramatically declined in most lakes and dams in Türkiye; hence, crayfish culture is a possible option to increase the supply. This study aimed to determine the effects of stocking density on the growth performance and survival ...
Yavuz Mazlum, Cumhur Uzun
doaj +1 more source