Results 11 to 20 of about 4,860 (205)
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
doaj +3 more sources
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
doaj +3 more sources
Veterinary Microbiology, 2013 Aphanomyces astaci sporulation is crucial for the spreading potential of this disease agent. For the first time, we are reporting timing and quantity of A. astaci spores released from noble crayfish (Astacus astacus) suffering from crayfish plague under practical aquatic conditions. We infected nine noble crayfish with A.
J, Makkonen +4 more
openaire +4 more sources
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
doaj +3 more sources
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
doaj +2 more sources
PLoS ONE, 2017 For several hundred years freshwater crayfish (Crustacea-Decapoda-Astacidea) have played an important ecological, cultural and culinary role in Scandinavia.
Sune Agersnap +8 more
doaj +2 more sources
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
openaire +2 more sources
Thirty years of invasion: the distribution of the invasive crayfish Procambarus clarkii in Italy [PDF]
, 2020 The presence of the red swamp crayfish Procambarus clarkii in Italy is documented since 1989, but no comprehensive data are available on its spread through time at the national scale. New confirmed records for Procambarus clarkii are continuously arising
Falaschi, Mattia +3 more
core +2 more sources
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
openaire +2 more sources
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
doaj +1 more source