Results 41 to 50 of about 523,094 (204)
The spread of non-native species. [PDF]
Biol Rev Camb Philos SocABSTRACT The global redistribution of species through human agency is one of the defining ecological signatures of the Anthropocene, with biological invasions reshaping biodiversity patterns, ecosystem processes and services, and species interactions globally.
Haubrock PJ +16 more
europepmc +2 more sources
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
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
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.
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Aquaculture Nutrition, 2023 The effects of galactooligosaccharide (GOS) and varying levels of Lactobacillus plantarum (LP) on some physiological parameters as well as air exposure stress resistance in clawed crayfish (Pontastacus leptodactylus) were investigated.
S. Nedaei +4 more
semanticscholar +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
Біологічні студіїBackground. Crayfish farming is a promising direction in the development of aquaculture. Compared with marine crustacean species, freshwater crayfish require lower cultivation costs, while their meat is regarded as an additive dietary delicacy with a ...
Mykola Slusar +6 more
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