Results 1 to 10 of about 1,631 (226)

Effect of chloride content in water on heart rate in narrow-clawed crayfish (Astacus leptodactylus) [PDF]

open access: yesKnowledge 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

The course of gametogenesis in narrow-clawed crayfish (Astacus leptodactylus Eschscholtz, 1823) in the condition of water bodies of the Dnieper region [PDF]

open access: diamondRibogospodarsʹka Nauka Ukraïni
Purpose. Detailed study of the stages of reproductive development (oogenesis and spermatogenesis) of crayfish using the example of the narrow-clawed crayfish Astacus leptodactylus Eschscholtz, 1823 in reservoirs of the Dnieper region.
I. Borovyk, O. Marenkov
doaj   +2 more sources

Analysis of linear-weight parameters of narrow-clawed crayfish (Astacus) in water reservoirs of Dnipropetrovsk region

open access: diamondБіологія тварин, 2023
This research focuses on studying the narrow-clawed crayfish in the Dnipropetrovsk region. The narrow-clawed crayfish, Astacus leptodactylus, is a crucial component of industrial fisheries and plays a significant role in the development of aquatic ...
I. I. Borovyk, O. M. Marenkov
doaj   +2 more sources

Evaluation of different dietary protein and energy levels on growth performance and body composition of narrow clawed crayfish (Astacus leptodactylus). [PDF]

open access: green, 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 ...
Zahra Ghiasvand   +4 more
openalex   +3 more sources

Dietary garlic (Allium sativum) powder improved zootechnical performance, digestive enzymes activity, and innate immunity in narrow-clawed crayfish (Postantacus leptodactylus)

open access: goldAquaculture Reports, 2022
In this study, the dietary effect of garlic powder (GP) as an herbal supplement on the growth performance, digestive enzymes, innate immunity, and antioxidant capacity of narrow-clawed crayfish, Postantacus leptodactylus, was investigated.
Omid Rezaei   +2 more
doaj   +2 more sources

Farming of the Juvenile Narrow-clawed Crayfish (Astacus leptodactylus) in Cages and Ponds in Polyculture With Fish in the Heated Waste Water of the Thermal Power Plantf [PDF]

open access: green, 2010
Experimental research has been carried out on fanning of the narrow-clawed crayfish larvae in ponds and cages in the TPP waste water. It was shown that farming in such conditions during the first vegetation period was more effective, than in water bodies
Виктор Федорович Кулеш   +1 more
openalex   +2 more sources

Rapid assessment of population dynamics and monitoring methods for invasive narrow clawed crayfish Pontastacus leptodactylus in a freshwater reservoir

open access: diamondKnowledge and Management of Aquatic Ecosystems
Narrow-clawed crayfish (Pontastacus leptodactylus) are a data deficient invasive non-native species in the UK. Boshaw Whams (West Yorkshire, UK) contains the only known population of narrow-clawed crayfish in Yorkshire.
Harwood Matthew   +6 more
doaj   +2 more sources

Farming of Indigenous Crayfish in Russia: A Mini-Review of Recent Studies [PDF]

open access: yesAnimals
Natural populations of crayfish in Europe have experienced significant declines due to the spread of crayfish plague, overfishing, competition with invasive crayfish species, and habitat degradation.
Alexander G. Dvoretsky   +1 more
doaj   +2 more sources

Meat Yield and the Length–Weight Relationships of the Narrow‐Clawed Crayfish, Pontastacus leptodactylus (Eschscholtz, 1823) [PDF]

open access: diamond, 2023
The present study investigated the length-weight relationships and meat yield of narrow-clawed crayfish, Pontastacus leptodactylus (Eschscholtz, 1823), in Kocahidir Irrigation Reservoir.
Fatih Boyalık   +2 more
openalex   +4 more sources

Population characteristics of the narrow-clawed crayfish (Astacus leptodactylus Eschscholtz, 1823) in the Treće jezero of the Maksimir Park [PDF]

open access: green, 2016
Uskoškari rak (Astacus leptodactylus Eschscholtz, 1823) pripada porodici Astacidae te je autohtona europska slatkovodna vrsta koja naseljava stajaćice i spore vodotoke. Cilj ovog rada je opisati populacijske značajke uskoškarog raka u Trećem jezeru parka
Mislav Orešković
openalex   +3 more sources

Home - About - Disclaimer - Privacy