Results 11 to 20 of about 4,202 (207)

The hematopoietic tissue of the freshwater crayfish, Pacifastacus leniusculus: organization and expression analysis. [PDF]

Cell Tissue Res
Abstract The hematopoietic tissue (HPT) and anterior proliferation center (APC) are the main hemocyte-producing organs of the freshwater crayfish, Pacifastacus leniusculus. To deepen our understanding of immune responses to various pathogens, it is essential to identify distinct hemocyte subpopulations with specific functions and to further ...
Kruangkum T, Söderhäll K, Söderhäll I.   +2 more
europepmc   +4 more sources

Prevalence of the crayfish plague pathogen Aphanomyces astaci in populations of the signal crayfish Pacifastacus leniusculus in France: evaluating the threat to native crayfish. [PDF]

PLoS ONE, 2013
Aphanomyces astaci, the crayfish plague pathogen, first appeared in Europe in the mid-19(th) century and is still responsible for mass mortalities of native European crayfish.
Lenka Filipová, Adam Petrusek, Klára Matasová, Carine Delaunay, Frédéric Grandjean   +4 more
doaj   +2 more sources

Experimental infection of white spot syndrome virus in freshwater crayfish Pacifastacus leniusculus [PDF]

Diseases of Aquatic Organisms, 2001
The signal freshwater crayfish Pacifastacus leniusculus was found to be susceptible to infection with white spot syndrome virus (WSSV). Histopathological observations of various tissues of virus-injected crayfish showed similar symptoms to those from WSSV-infected penaeid shrimp, but no appearance of white spots on the cuticle or reddish body colour ...
P, Jiravanichpaisal, E, Bangyeekhun, K, Söderhall, I, Söderhall   +3 more
openaire   +4 more sources

Better Alone Than in Bad Company: Trophic Ecology of Co-Occurring Invasive and Native Crayfish. [PDF]

Ecol Evol
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 ...
Ghia D, Fea G, Murtas A, Ventimiglia M, Bo T, Basso A, Pretto T, Sacchi R, Ercoli F.   +8 more
europepmc   +2 more sources

Importance of small fishes and invasive crayfish in otter Lutra lutra diet in an English chalk stream [PDF]

Knowledge and Management of Aquatic Ecosystems, 2017
The diet composition of the European otter Lutra lutra was assessed using spraint analysis in the Hampshire Avon, a lowland chalk stream in Southern England, over an 18-month period.
Britton J. Robert, Berry Matthew, Sewell Samantha, Lees Corina, Reading Peter   +4 more
doaj   +3 more sources

First European Interlaboratory Ring Test Study to Detect DNA of Crayfish and the Crayfish Plague Pathogen From Water Samples

Environmental DNA
In recent years, European countries have intensified efforts to control or limit the spread of invasive freshwater crayfish and the crayfish plague pathogen Aphanomyces astaci, while working to conserve native species such as the noble crayfish (Astacus ...
Patrik Bohman, Kristofer Andersson, David A. Strand, Thomas Baudry, Kathrin Theissinger, Ivana Maguire, Michael Aluma, Anna Aspán, Martin Bláha, Ljudevit Luka Bostjancic, Carine Delaunay, Javier Diéguez‐Uribeondo, Lennart Edsman, Fabio Ercoli, Jean‐Yves Georges, Frédéric Grandjean, Bogna Griffin, Terhi Iso‐Touru, Birgitta Jacobsson, Katrin Kaldre, Alex King, Pavel Kozák, Lucija Markulin, María Martínez‐Ríos, Laura Martín‐Torrijos, Saima Mohammad, Michaela Mojžišová, Teja Petra Muha, Ludvig Orsén, John Persson, Simone Roberto Rolando Pisano, Lilian Pukk, Björn Rogell, Timo J. Ruokonen, Heike Schmidt‐Posthaus, Jonas Steiner, Linda Söderberg, Anti Vasemägi, Armin Zenker, Adam Petrusek   +39 more
doaj   +2 more sources

Phylogenetic species delimitation for crayfishes of the genus Pacifastacus [PDF]

PeerJ, 2016
Molecular genetic approaches are playing an increasing role in conservation science by identifying biodiversity that may not be evident by morphology-based taxonomy and systematics.
Eric R. Larson, Magalie Castelin, Bronwyn W. Williams, Julian D. Olden, Cathryn L. Abbott   +4 more
doaj   +2 more sources

Observation of museum specimens of the genus Pacifastacus Bott, 1950 (Decapoda: Astacidae)

Nauplius, 2018
Until recently, three subspecies had traditionally been recognized in the astacid species Pacifastacus leniusculus (Dana, 1852): Pacifastacus leniusculus leniusculus, Pacifastacus leniusculus klamathensis (Stimpson, 1857), and Pacifastacus leniusculus ...
Tadashi Kawai
doaj   +1 more source

Aquatic macroinvertebrate responses to native and non-native predators [PDF]

, 2014
Non-native species can profoundly affect native ecosystems through trophic interactions with native species. Native prey may respond differently to non-native versus native predators since they lack prior experience.
Christmas, M, Dunn, AM, Haddaway, NR, Mortimer, RJG, Vieille, D   +4 more
core   +7 more sources

Data on optimisation of a multiplex HRM-qPCR assay for native and invasive crayfish as well as the crayfish plague in four river catchments

Data in Brief, 2018
The data presented here corresponds to the research paper “Simultaneous detection of invasive signal crayfish, endangered white-clawed crayfish and the crayfish plague using environmental DNA”.
Chloe Victoria Robinson, Tamsyn M. Uren Webster, Sofia Consuegra   +2 more
doaj   +1 more source