Results 21 to 30 of about 4,202 (207)

Competition and parasitism in the native White Clawed Crayfish Austropotamobius pallipes and the invasive Signal Crayfish Pacifastacus leniusculus in the UK [PDF]

open access: yes, 2009
Many crayfish species have been introduced to novel habitats worldwide, often threatening extinction of native species. Here we investigate competitive interactions and parasite infections in the native Austropotamobius pallipes and the invasive ...
A Bauer   +53 more
core   +1 more source

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   +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

Diel turbidity cycles in a headwater stream: evidence of nocturnal bioturbation? [PDF]

open access: yes, 2016
Purpose: A small number of recent studies have linked daily cycles in stream turbidity to nocturnal bioturbation by aquatic fauna, principally crayfish, and demonstrated this process can significantly impact upon water quality under baseflow conditions ...
A Kouba   +31 more
core   +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

Distribution of Non-Indigenous Crayfish Species in Estonia and Their Impacts on Noble Crayfish (Astacus astacus L.) Populations

open access: yesDiversity, 2023
Invasive non-indigenous crayfish species (NICS) are a major threat to the existence of native crayfish populations in European freshwater ecosystems. The discovery of signal crayfish Pacifastacus leniusculus, marbled crayfish Procambarus virginalis, and ...
Michael Oliewo Aluma   +3 more
doaj   +1 more source

Native European branchiobdellids on non-native crayfishes: Report from the Czech Republic

open access: yesJournal of Limnology, 2017
Invasive alien species present a global threat to biodiversity, particularly where pathogens and symbionts are involved. Non-native crayfish species can increase their impact on the host ecosystem through introductions of symbiotic fauna. Conversely, non-
Martin Bláha   +4 more
doaj   +1 more source

CRAYFISH MANAGEMENT FOR SWISS WATERS

open access: yesKnowledge and Management of Aquatic Ecosystems, 2006
Seven species of crayfish are present in Swiss waters: three native ones (Astacus astacus, Austropotamobius pallipes, Austropotamobius torrentium) and four exotic ones (Astacus leptodactylus, Orconectes limosus, Pacifastacus leniusculus, Procambarus ...
HEFTI D., STUCKI P.
doaj   +1 more source

Decoupled conservatism of Grinnellian and Eltonian niches in an invasive arthropod

open access: yesEcosphere, 2010
Whether a species niche is conserved or shifts across space and time is a question of heightened interest in ecology and evolution. Considerable scientific inquiry into this topic has used invasive species to evaluate conservatism of the Grinnellian ...
Eric R. Larson   +2 more
doaj   +1 more source

Eradication attempt for an early detected invasive crayfish: the case of Pacifastacus leniusculus (Decapoda, Astacidae) in the Clitunno River (central Italy) [PDF]

open access: yesNeoBiota
The signal crayfish Pacifastacus leniusculus (Dana, 1852) is one of the most ecologically impactful decapod crustaceans introduced in Europe. As a species of Union concern, early detection and rapid eradication measures are required to prevent its ...
Antonella Carosi   +3 more
doaj   +3 more sources

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