Results 11 to 20 of about 1,874 (205)

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

open access: yesNauplius, 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   +2 more sources

Pacifastacus leniusculus [PDF]

open access: yes, 2012
Pacifastacus leniusculus (Dana, 1852) (Fig. 30D–F, L) Astacus leniusculus Dana, 1852: 524. — Stimpson 1857b: 493. — Hagen 1870: 94. — Holmes 1900: 166. — Bonnot 1930: 212, figs. 65–67. Pacifastacus leniusculus. — Riegel 1959: 39, fig. 1F–H, fig. 3A, 6. — Miller & Van Hyning 1970:77, figs. 1, 2. — Abrahamsson & Goldman 1970: 83.
Sanders, H., Mills, D.
core   +4 more sources

Pacifastacus leniusculus

open access: yes, 2020
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   +2 more sources

DETERMINATION OF THE RATE OF GROWTH OF PACIFASTACUS LENIUSCULUS IN LAKE POBŁĘDZIE, USING POLYMODAL LENGTH FREQUENCY DISTRIBUTION ANALYSIS

open access: yesKnowledge and Management of Aquatic Ecosystems, 2006
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.
doaj   +2 more sources

DISTRIBUTION AND REPRODUCTIVE BIOLOGY OF AUSTROPOTAMOBIUS TORRENTIUM IN BAVARIA AND DOCUMENTATION OF A CONTACT ZONE WITH THE ALIEN CRAYFISH PACIFASTACUS LENIUSCULUS

open access: yesKnowledge and Management of Aquatic Ecosystems, 2005
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.
doaj   +2 more sources

Transglutaminase activity in the hematopoietic tissue of a crustacean, Pacifastacus leniusculus, importance in hemocyte homeostasis. [PDF]

open access: yesBMC Immunol, 2008
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

ON SELECTED MORPHOMECHANICAL CHARACTERISTICS OF SIGNAL CRAYFISH (PACIFASTACUS LENIUSCULUS DANA) EGGS DURING INCUBATION

open access: yesKnowledge and Management of Aquatic Ecosystems, 2004
Changes in resistance to mechanical pressure during embryogenesis were studied in the signal crayfish (Pacifastacus leniusculus Dana). A constant increase in egg size (volume and surface area) was observed to take place throughout the embryonic ...
WINNICKI A.   +3 more
doaj   +2 more sources

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

open access: yesEnvironmental 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   +39 more
doaj   +2 more sources

DESCRIPTION DE LA ZOOÉPIBIOSE DE L’ÉCREVISSE SIGNAL (PACIFASTACUS LENIUSCULUS, DANA) EN ASTACICULTURE

open access: yesKnowledge and Management of Aquatic Ecosystems, 2002
Des recherches ont été effectuées concernant la zooépibiose de l’écrevisse signal (Pacifastacus leniusculus, D.), provenant d’un centre d’astaciculture espagnol, au cours de la période 1997-1998.
CUELLAR M. C.   +2 more
doaj   +2 more sources

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