Chronic crayfish plague infection and eroded swimmeret syndrome in Lake Saimaa (Finland) signal crayfish [PDF]
Freshwater Crayfish, 2017 Abstract We present data and results from a 9-year survey (2009 – 2017) of the Lake Saimaa signal crayfish population in Finland. This population has a history of chronic infection with Aphanomyces astaci. It has now been discovered that female signal crayfish from Lake Saimaa suffer from various stages of eroded swimmeret syndrome (ESS), and male ...
Jussila Japo +2 more
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The prevalence of Aphanomyces astaci in invasive signal crayfish from the UK and implications for native crayfish conservation [PDF]
Parasitology, 2017 SUMMARYThe crayfish plague agent, Aphanomyces astaci, has spread throughout Europe, causing a significant decline in native European crayfish. The introduction and dissemination of this pathogen is attributed to the spread of invasive North American crayfish, which can act as carriers for A. astaci.
James, J +6 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
doaj +1 more source
Lake Hańcza – a new site for signal crayfish (Pacifastacus leniusculus Dana) occurrence in Poland
Archives of Polish Fisheries, 2018 Crayfish catches were conducted using traps in Lake Hańcza, which is the deepest lake in Poland. Two crayfish populations were found to co-exist in the lake: spiny-cheek crayfish (Orconectes limosus Raf.) and signal crayfish (Pacifastacus leniusculus ...
Ulikowski Dariusz, Chybowski Łucjan
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The Role of Proprioceptive Signals in the Crayfish Escape Circuit [PDF]
Zoological Science, 2000 Abstract A single proprioceptor in the tailfan of the crayfish, Procambarus clarkii (Girard), innervated by only twelve sensory neurones encodes the position and the direction and velocity of movement of the exopodite relative to the endopodite. Most of the sensory neurones project to, and terminate in, the terminal abdominal ganglion where they form a
Philip L. Newland +2 more
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Exponential increase of signal crayfish in running waters in Sweden – due to illegal introductions?
Knowledge and Management of Aquatic Ecosystems, 2011 Sweden has only one indigenous species of crayfish, the noble crayfish (Astacus astacus, Fabricius). There has been a steady decline of noble crayfish populations in Sweden since 1907, mainly due to the crayfish plague.
Bohman P. +3 more
doaj +1 more source
Biology, 2021 Biological invasions are increasingly recognized ecological and economic threats to biodiversity and are projected to increase in the future. Introduced freshwater crayfish in particular are protruding invaders, exerting tremendous impacts on native ...
Antonín Kouba +9 more
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CRAYFISHERIES IN FINLAND, A SHORT OVERVIEW
Knowledge and Management of Aquatic Ecosystems, 2004 Crayfish trapping and activities related to crayfishing have traditionally been lucrative businesses in rural Finland. The catch itself, varying in the 1990’s from 2 to 4 millions crayfish annually, is worth 4 to 8 millions euros.
JUSSILA J., MANNONEN A.
doaj +1 more source
Evaluating brown trout as a potential biological control agent of signal crayfish [PDF]
NeoBiotaThis study evaluates the potential of brown trout (Salmo trutta) as a biological control of a recently established signal crayfish (Pacifastacus leniusculus) population in a protected area (Baceiro River, Montesinho Natural Park, Portugal). Five sampling
Matilde Matos +4 more
doaj +3 more sources
Effects of <i>Rhodotorula mucilaginosa</i> on Growth, Antioxidant, and Immune Function, and Toll/Imd and JAK-STAT Signaling Pathways in Red Claw Crayfish (<i>Cherax quadricanatus</i>). [PDF]
Aquac NutrZhang Q +9 more
europepmc +3 more sources