Results 51 to 60 of about 4,800 (162)
Acta 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
Aquaculture, Fish and Fisheries, Volume 5, Issue 5, October 2025.ABSTRACT The three key processes in the breeding of redclaw crayfish are nutrient enhancement by parents, catching and hatching of egg‐holding crayfish and maintaining a feed supply for juveniles. An appropriate combination of green ecological additives is beneficial for improving the production efficiencies of the three key processes.
Cheng Shun +8 more
wiley +1 more source
New Species of Aeolosomatidae (Oligochaeta) from the Gils Cavity of Astacus leptodactylus leptodactylus from the Water Bodies of the Ukraine [PDF]
, 1975 In the gill cavity of Astacus leptodactylus leptodactylus from the water bodies of the Dnieper and Southern Bug basins Oligochaeta are found which are referred to the new species of the family Aeolosomalidae - Aeolosoma markewitschii sp. n. They affect A.
Пашкевичуте, А.С. +1 more
core +1 more source
CRAYFISH MANAGEMENT FOR SWISS WATERS
Knowledge 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
Better Alone Than in Bad Company: Trophic Ecology of Co‐Occurring Invasive and Native Crayfish
Ecology and Evolution, Volume 15, Issue 5, May 2025.This study investigated and compared trophic interactions between invasive signal crayfish and native white‐clawed crayfish at sites of co‐occurrence and in allopatry. The presence of crayfish plague, body condition, and trophic niche traits were explored as possible factors that make invasive signal crayfish a strong competitor, enhancing its ...
Daniela Ghia +8 more
wiley +1 more source
eDNA‐Based Detection of Invasive Crayfish and Crayfish Plague in Estonia
Environmental 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
Majallah-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
Novel protocol for the chemical synthesis of crustacean hyperglycemic hormone analogues--an efficient experimental tool for studying their functions. [PDF]
PLoS 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
A Review on the Role of 2–8 Carbon Chain Carboxylates in Enhancing Aquaculture Performance
Reviews 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
Amino acid metabolism of Astacus leptodactylus (Esch.)—II. Biosynthesis of the non-essential amino acids [PDF]
, 1975 1. 1. Incubation of Astacus leptodactylus with U-14C-glucose or 1-14C-acetate induced labelling of α- and β-alanine, aspartic and glutamic acids, glutamine, glycine, proline and serine.
Zandee, Daniel I. +1 more
core +1 more source