Results 71 to 80 of about 563 (163)

Molecular Characterisation of Endangered White‐Clawed Crayfish Populations in Southern Switzerland

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 3, March 2026.
ABSTRACT This study investigates the phylogeography of the endangered European White‐Clawed Crayfish (WCC) Austropotamobius pallipes species complex in the main tributaries of the Po River basin in southern Switzerland and northern Italy, a diversity hotspot for this species.
Sebastian Prati   +3 more
wiley   +1 more source

Filling the blank spot: first report on the freshwater crayfish distribution in Albania

open access: yesKnowledge and Management of Aquatic Ecosystems, 2017
The knowledge on the distribution of native and non-native crayfish species in Europe has substantially advanced during last two decades. However, data on the exact distribution of European crayfish are still lacking in some regions of the Balkan ...
Mrugała Agata   +3 more
doaj   +1 more source

Аge structure and fecundity of the noble crayfish populations in abandoned quarries

open access: yesProceedings of the National Academy of Sciences of Belarus, Biological Series, 2022
The population of noble crayfish (Astacus astacus) was researched in quarries of an old brick plant in Molodechno district of Minsk region. Rare disappearing noble crayfish was found in 10 closed quarries. The presence of crayfish in closed quarries that are not connected with watercourses indicates that these populations were created by man.
openaire   +2 more sources

The signal crayfish is vulnerable to both the As and the PsI-isolates of the crayfish plague

open access: yesKnowledge and Management of Aquatic Ecosystems, 2014
The carrier status and possible elevated tolerance of the signal crayfish (Pacifastacus leniusculus) against the crayfish plague disease agent (Aphanomyces astaci) has been speculated for several decades.
Aydin H.   +5 more
doaj   +1 more source

Genetic diversity and structure of the noble crayfish populations in the Balkan Peninsula revealed by mitochondrial and microsatellite DNA markers. [PDF]

open access: yesPeerJ, 2021
Gross R   +9 more
europepmc   +1 more source

Boldness as a consistent personality trait in the noble crayfish, Astacus astacus

open access: yesacta ethologica, 2010
Consistent individual differences in behavioural responses to perceived predation risk may have extensive ecological and evolutionary implications. We studied the repeatability of boldness across time and its relation to resource holding potential in the noble crayfish, Astacus astacus L., using predator-naive immature individuals.
Vainikka, A.   +4 more
openaire   +2 more sources

Aphanomyces astaci PsI-genotype isolates from different Finnish signal crayfish stocks show variation in their virulence but still kill fast

open access: yesKnowledge and Management of Aquatic Ecosystems, 2013
We detected significant virulence differences among five tested (PsI-Puujärvi, PsI-Pyhäjärvi, PsI-Kukkia, PsI-Saimaa I and PsI-Saimaa II) PsI-genotype crayfish plague (Aphanomyces astaci) isolates against lake Mikitänjärvi noble ...
Jussila J.   +3 more
doaj   +1 more source

Noble Crayfish Aquaculture: Embryonic Development and Juvenile Performance

open access: yes, 2021
Freshwater crayfish play an important role in freshwater ecosystems and represent a highly appreciated food item. The European crayfish fauna comprises five indigenous species and noble crayfish Astacus astacus (L. 1758) is the only species native to Northern Germany.
openaire   +1 more source

COMPARISON AMONG PRE-GELATINIZED STARCHES OF DIFFERENT BOTANICAL ORIGINS USED IN NOBLE CRAYFISH ASTACUS ASTACUS DIETS

open access: yesKnowledge and Management of Aquatic Ecosystems, 2006
The objective of the present experiment was to compare the biological value and the binding functionality of four pre-gelatinized starches (wheat, diet 1; waxy maize, diet 2; maize, diet 3 and potato, diet 4) used in crayfish diets.
D’AGARO E., MECATTI M.
doaj   +1 more source

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