Results 11 to 20 of about 808 (171)
The continuing spread of Pacifastacus leniusculus in Carinthia (Austria) [PDF]
Crayfish plague and introductions of non-indigenous freshwater crayfish species (NICS) have had major consequences for the survival of autochthonous crayfish populations in Europe.
M. Weinländer, L. Füreder
doaj +3 more sources
Color variation in signal crayfish Pacifastacus leniusculus. [PDF]
Abstract External coloration in animals depends on the interaction of several different factors including the genetics and epigenetics processes that underlie the color expression, the mechanisms of color perception, and the general mechanisms controlling color evolution and function.
Sacchi R +4 more
europepmc +5 more sources
Modulation of endogenous antioxidants by zinc and copper in signal crayfish (Pacifastacus leniusculus). [PDF]
Metal pollution is a long-standing concern and bioindicators are commonly used in ecotoxicological studies to monitor impacted wildlife populations for evidence of sublethal effects. Significant variation in the response of common biomarkers to metals is reported across taxa, thus necessitating careful characterization in model organisms. In this study,
Gunderson MP +4 more
europepmc +3 more sources
The hematopoietic tissue of the freshwater crayfish, Pacifastacus leniusculus: organization and expression analysis. [PDF]
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 +2 more
europepmc +4 more sources
Impacts of the North American signal crayfish (Pacifastacus leniusculus) on European ecosystems. [PDF]
As a vector of the crayfish plague (Aphanomyces astaci), invasive crayfish pose a major threat to endemic crayfish species in Europe. But do they affect whole ecosystems and fish species as well? A comprehensive review was done using online search engines on current literature to elucidate possible crayfish effects.
Vaeßen S, Hollert H.
europepmc +5 more sources
Signal crayfish Pacifastacus leniusculus (Dana, 1852) Signal crayfish were introduced into Latvia from Lithuania in 1983 and 1984 and released into Primmas Lake in 1983-1985 (Mjasischev 1991). They were raised in a fish farm on the Gauja’s tributary, the Brasla, from which it entered this river.
Aleksejevs, Ēriks, Birzaks, Jānis
openaire +1 more source
Transglutaminase activity in the hematopoietic tissue of a crustacean, Pacifastacus leniusculus, importance in hemocyte homeostasis. [PDF]
Abstract Background Transglutaminases (TGases) form a group of enzymes that have many different substrates and among the most well known are fibrin for Factor XIIIa and the clotting protein in crustaceans. We also found that TGase is an abundant protein in the hematopoietic tissue (Hpt) cells of crayfish and hence we ...
Lin X, Söderhäll K, Söderhäll I.
europepmc +5 more sources
In Bavarian freshwater systems, the stone crayfish Austropotamobius torrentium is still present in many headwaters of Danubian tributaries. Since the 1960s an alien species, the signal crayfish Pacifastacus leniusculus, was introduced several times ...
HUBER M. G.J., SCHUBART C. D.
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This study estimated the rate of growth of Pacifastacus leniusculus using the sizefrequency data analysis in Lake Pobłędzie NE Poland. A sample of 1,342 individuals (645 males and 697 females) was collected with baited traps in late September 2002.
ŠMIETANA P., KRZYWOSZ T.
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DISTRIBUTION OF CRAYFISH IN SALZBURG, AUSTRIA
Mapping of crayfish populations in the province of Salzburg was carried out in the years 2002 and 2003. Five crayfish species were found, two of them native: Astacus astacus and Austropotamobius torrentium, and three foreign: Astacus leptodactylus ...
PATZNER R. A. +4 more
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