Results 1 to 10 of about 755 (114)

Microplastic burden in invasive signal crayfish (Pacifastacus leniusculus) increases along a stream urbanization gradient [PDF]

open access: yesEcology and Evolution, 2023
Microplastics are a globally pervasive pollutant with the potential to directly impact species and accumulate in ecosystems. However, there remains a relative paucity of research addressing their accumulation in freshwater ecosystems and a near absence ...
Carl Sayer   +2 more
exaly   +3 more sources

eDNA-based detection of the invasive crayfish Pacifastacus leniusculus in streams with a LAMP assay using dependent replicates to gain higher sensitivity [PDF]

open access: yesScientific Reports, 2022
LAMP assays are becoming increasingly popular in the field of invasive species detection but are still underused in eDNA-based monitoring. Here, we propose a LAMP assay designed to detect the North American crayfish species Pacifastacus leniusculus in ...
David Porco   +5 more
doaj   +2 more sources

Distribution, habitat associations, and conservation status updates for the pilose crayfish Pacifastacus gambelii (Girard, 1852) and Snake River pilose crayfish Pacifastacus connectens (Faxon, 1914) of the western United States [PDF]

open access: yesPeerJ, 2018
Our study evaluates the distribution, habitat associations, and current conservation status of the Snake River pilose crayfish Pacifastacus connectens (Faxon, 1914) and pilose crayfish Pacifastacus gambelii (Girard, 1852), two little-studied and data ...
Rachel M. Egly, Eric R. Larson
doaj   +3 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 [PDF]

open access: yesData 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   +2 more
doaj   +2 more sources

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

open access: yesPeerJ, 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   +4 more
doaj   +2 more sources

Bacteria-Induced Dscam Isoforms of the Crustacean, Pacifastacus leniusculus. [PDF]

open access: yesPLoS Pathogens, 2011
The Down syndrome cell adhesion molecule, also known as Dscam, is a member of the immunoglobulin super family. Dscam plays an essential function in neuronal wiring and appears to be involved in innate immune reactions in insects.
Apiruck Watthanasurorot   +4 more
doaj   +1 more source

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   +1 more source

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   +1 more source

DISTRIBUTION OF CRAYFISH IN SALZBURG, AUSTRIA

open access: yesKnowledge and Management of Aquatic Ecosystems, 2005
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
doaj   +1 more source

Environmental DNA‐based methods detect the invasion front of an advancing signal crayfish population

open access: yesEnvironmental DNA, 2022
Aquatic invasive species, such as the signal crayfish (Pacifastacus leniusculus), present a major threat to freshwater ecosystems. However, these species can be challenging to detect in recently invaded habitats.
Jack A. Greenhalgh   +9 more
doaj   +1 more source

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