Results 91 to 100 of about 6,164 (251)
Study on the Artificial Incubation of Procambarus clarkii Embryos
Aquaculture Research, Volume 2025, Issue 1, 2025.The Procambarus clarkii industry currently faces four major challenges: genetic degradation, disease, unstable prices, and limited breeding methods and modes. Studies on the artificial incubation of P. clarkii embryos can help solve these problems. The purpose of this study was to screen for parameters (disinfectants, embryo stripping stage, embryo ...
Shun Cheng +8 more
wiley +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
Evaluation of different dietary protein and energy levels on growth performance and body composition of narrow clawed crayfish (Astacus leptodactylus) [PDF]
, 2012 Nine practical diets containing increasing percentages of crude protein (CP) and energy (30%, 35%, 40% and 300kcal/100g, 370kcal/100g and 450kcal/100g) were fed to narrow clawed crayfish (mean individual weight=17±2.3 g) during an 8 week feeding trial ...
Ghiasvand, Z. +4 more
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Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 34, Issue 9, September 2024.ABSTRACT The use of environmental DNA (eDNA) as a tool for monitoring represents a major innovative advance in environmental science, one that enables the detection of species without the need to observe or capture them. This article assesses the state of play of eDNA research targeting crayfish.
Thomas Baudry +4 more
wiley +1 more source
Turkish Journal of Agriculture: Food Science and Technology, 2019 Bu çalışmada kerevit (Astacus leptodactylus Eschscholtz) yemine farklı oranlarda katılan selenyumun hepatopankreas ve gonad dokularında paraoksonaz (PON) ve arilesteraz (ARE) enzim aktivitelerine etkisi araştırılmıştır.
Serpil Mişe Yonar, Muzaffer Harlıoğlu
doaj +1 more source
ОСОБЕННОСТИ ГЕНЕТИЧЕСКОЙ СТРУКТУРЫ ПОПУЛЯЦИЙ И МОРФОЛОГИЧЕСКАЯ ИЗМЕНЧИВОСТЬ ПОПУЛЯЦИЙ РЕЧНЫХ РАКОВ ASTACUS FABRICIUS, 1775 ЮГО-ВОСТОКА УКРАИНЫ [PDF]
, 2012 Комплексное исследование четырех выборок речных раков из речных систем юго-востока Украины, базирующееся на аллозимах и внешней морфологии, показало присутствие в регионе трех видов.
Жалай, Е. И. +2 more
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Knowledge and Management of Aquatic Ecosystems, 2006 The taxonomic classification of European crayfish is neither fully examined nor generally accepted as a unifying scheme. At present, one of the most obvious differences exists between astacologists from Western and Eastern Europe.
ŚMIETANA P. +3 more
doaj +1 more source
ОСОБЕННОСТИ АЛЛОЗИМНОЙ ИЗМЕНЧИВОСТИ В ПОПУЛЯЦИЯХ ДЛИННОПАЛЫХ РАКОВ (PONTASTACUS BOTT, 1950) В ПРЕДЕЛАХ УКРАИНЫ [PDF]
, 2012 Анализ аллозимной изменчивости выборок длиннопалых раков Pontastacus leptodactylus s. lato показал их четкую генетическую дифференциацию на две группы.
Жалай, Е. И. +2 more
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Assessment of the efficiency of Funnel net and Hokkaido traps for Astacus leptodactylus Eschscholtz, 1823 catching in ponds [PDF]
بومشناسی آبزیان, 2020 Various fishing tools have been used for catching Astacus leptodactylus in the world. In this research, a trap was specially designed for crayfish fishing with some changes in the shape and dimensions of the Hokkaido trap, and its efficiency was compared
Mohammad Javad Vesaghi +4 more
doaj
Experimentally pathogenesis of Aeromonas hydrophila in freshwater crayfish (Astacus leptodactylus) in Iran [PDF]
, 2012 In this research the affect of A. hydrophila on pathogenesis of Crayfish A. leptodactylus was carried out. This study was designed in three groups as treatments and one group as control in triplicate with 20 Crayfish in each glass aquarium.
Afsharnasab, M. +7 more
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