Results 11 to 20 of about 542 (151)
Status and management of noble crayfish Astacus astacus in Estonia [PDF]
Knowledge and Management of Aquatic Ecosystems, 2009 Noble crayfish Astacus astacus (L.) is an indigenous and the only crayfish species in Estonia. It is potentially endangered by invasion of alien species, diseases and habitat deterioration but does not have legal protected status and is fished only for ...
T. Paaver, M. Hurt
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Diversity, 2023 Invasive non-indigenous crayfish species (NICS) are a major threat to the existence of native crayfish populations in European freshwater ecosystems. The discovery of signal crayfish Pacifastacus leniusculus, marbled crayfish Procambarus virginalis, and ...
Michael Oliewo Aluma +3 more
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Noble Crayfish Are More Sensitive to Terbuthylazine than Parthenogenetic Marbled Crayfish [PDF]
Water, Air, & Soil Pollution, 2020 AbstractWe investigated the sensitivity of two freshwater crayfish species (Astacus astacus and Procambarus virginalis) during embryonic development to chronic exposure to the herbicide terbuthylazine under laboratory conditions. The assessed parameters included time of embryonic development, survival rate, hatching weight and histopathology of ...
Jan Laurenz +4 more
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Variation in Resistance to the Invasive Crayfish Plague and Immune Defence in the Native Noble Crayfish [PDF]
Annales Zoologici Fennici, 2014 Emerging diseases, such as the crayfish plague, are a worldwide problem with serious ecological and economic impacts. Under the framework of ecological immunology, we investigated whether variation in crayfish plague resistance, the indicators of immune defence (encapsulation response, phenoloxidase and lytic activity), and the exploration behaviour ...
Gruber, Christina +9 more
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Frontiers in Ecology and Evolution, 2021 For 150 years the crayfish plague disease agent Aphanomyces astaci has been the cause of mass mortalities among native European crayfish populations. However, recently several studies have highlighted the great variability of A.
Caterina Francesconi +6 more
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Three crayfish species of different origin in a medium-sized river system: a new state of affairs
Knowledge and Management of Aquatic Ecosystems, 2021 In view of contemporary changes in aquatic environments, determining the distribution of both native and emerging invasive crayfish species is increasingly important.
Radtke Grzegorz +4 more
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Animal, 2018 Female crayfish stores male gametes after mating until the beginning of egg laying and fertilization. The aim of the present study was to investigate the duration of post-mating spermatophore storage as well as the timing and temperature of spawning in ...
B. Yazicioglu +3 more
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EXPLOITATION IS A PREREQUISITE FOR CONSERVATION OF ASTACUS ASTACUS
Knowledge and Management of Aquatic Ecosystems, 2004 The noble crayfish, Astacus astacus, is highly valued from a recreational and economical point of view. In most noble crayfish areas, there are long traditions of crayfish catching.
TAUGBØL T.
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Differing virulence of Aphanomyces astaci isolates and elevated resistance of noble crayfish Astacus astacus against crayfish plague [PDF]
Diseases of Aquatic Organisms, 2012 Crayfish plague epidemics (caused by Aphanomyces astaci) have been causing population collapses among native European crayfish stocks since the late 1800s. Recent indirect and direct evidence has shown that its virulence has been variable, with native European crayfish even acting as carriers. We tested the differences in A.
Vainikka Anssi +4 more
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Frontiers in Environmental Science, 2020 Noble crayfish is the most widespread native freshwater crayfish species in Europe. It is threatened in its entire distribution range and listed on the International Union for Concervation Nature- and national red lists.
Stein I. Johnsen +4 more
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