Results 51 to 60 of about 2,542 (212)

CRAYFISH MANAGEMENT FOR SWISS WATERS

open access: yesKnowledge and Management of Aquatic Ecosystems, 2006
Seven species of crayfish are present in Swiss waters: three native ones (Astacus astacus, Austropotamobius pallipes, Austropotamobius torrentium) and four exotic ones (Astacus leptodactylus, Orconectes limosus, Pacifastacus leniusculus, Procambarus ...
HEFTI D., STUCKI P.
doaj   +1 more source

Чужеродные макробеспозвоночные в донных сообществах Новосибирского водохранилища (эколого-фаунистический обзор)

open access: yesActa Biologica Sibirica, 2018
Строительство и последующее использование водохранилищ стало ведущим фактором проникновения и распространения чужеродных видов в Обь-Иртышском бассейне.
L. V. Yanygina
doaj   +1 more source

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: yes, 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
Алехнович, Анатолий Васильевич   +1 more
core  

eDNA‐Based Detection of Invasive Crayfish and Crayfish Plague in Estonia

open access: yesEnvironmental DNA, Volume 7, Issue 3, May–June 2025.
Our study explored the potential of integrating the eDNA approach into ongoing annual monitoring programs for invasive crayfish species and A. astaci. Crayfish eDNA was detected in 9 out of 14 water bodies where presence was confirmed by trapping, yielding 64% detection efficiency. eDNA from A.
Michael Oliewo Aluma   +4 more
wiley   +1 more source

ОСОБЕННОСТИ АЛЛОЗИМНОЙ ИЗМЕНЧИВОСТИ В ПОПУЛЯЦИЯХ ДЛИННОПАЛЫХ РАКОВ (PONTASTACUS BOTT, 1950) В ПРЕДЕЛАХ УКРАИНЫ [PDF]

open access: yes, 2012
Анализ аллозимной изменчивости выборок длиннопалых раков Pontastacus leptodactylus s. lato показал их четкую генетическую дифференциацию на две группы.
Жалай, Е. И.   +2 more
core  

The freshwater crayfish Austropotamobius pallipes in South Tyrol. Heritage species and bioindicator [PDF]

open access: yes, 2003
Rapid decline of crayfish in European freshwaters and continuing threat necessitate integrated actions in conservation and management of native crayfish populations.
Fureder, L.   +4 more
core   +1 more source

A Review on the Role of 2–8 Carbon Chain Carboxylates in Enhancing Aquaculture Performance

open access: yesReviews in Aquaculture, Volume 17, Issue 1, January 2025.
Two to eight carbon chain carboxylates enhance aquaculture sustainability and productivity by improving growth performance, immune responses, environmental management, reducing antibiotic reliance, and promoting a circular economy. ABSTRACT Aquaculture is a key sector for global food security, but its sustainability and productivity remain constantly ...
Moussa Gouife   +6 more
wiley   +1 more source

Novel protocol for the chemical synthesis of crustacean hyperglycemic hormone analogues--an efficient experimental tool for studying their functions. [PDF]

open access: yesPLoS ONE, 2012
The crustacean Hyperglycemic Hormone (cHH) is present in many decapods in different isoforms, whose specific biological functions are still poorly understood. Here we report on the first chemical synthesis of three distinct isoforms of the cHH of Astacus
Alessandro Mosco   +6 more
doaj   +1 more source

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

open access: yes, 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
Orešković, Mislav
core   +1 more source

LENGTH-WEIGHT FREQUENCY AND SEX RATIO OF CRAYFISH, ASTACUS LEPTODACTYLUS, IN ARAS RESERVOIR, WEST AZERBAIJAN, IRAN

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2008
The length-weight frequency and sex ratio of crayfish (Astacus leptodactylus) in Aras Reservoir, was studied seasonally from spring 2008 to winter 2009. The total mean length and weight for the crayfish were 106.43±7.94mm and 35.8±10.86g, respectively. A
A. Mohsen por azari; A. Asem; A. Mottalebi; F. Mohebi; S. Shiri
doaj  

Home - About - Disclaimer - Privacy