Results 61 to 70 of about 824 (174)

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

open access: yesKnowledge 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   +4 more
doaj   +1 more source

Drivers of the range expansion of the European catfish (Silurus glanis) within its native distribution

open access: yesJournal of Fish Biology, Volume 107, Issue 3, Page 1030-1044, September 2025.
Abstract The European catfish Silurus glanis L. continues to spread as an invasive species in Europe. Meanwhile, increasing abundance and range expansions are also suspected within its native distribution. The objective of this study was to characterize the feeding, growth and abundance of S.
Jan Baer   +4 more
wiley   +1 more source

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   +1 more source

Pacifastacus fortis Eng & Daniels 1982

open access: yes, 2012
Published as part of Wicksten, Mary K., 2012, Decapod Crustacea of the Californian and Oregonian Zoogeographic Provinces 3371, pp.
openaire   +1 more source

THE WITHIN-CATCHMENT INVASION OF THE NON-INDIGENOUS SIGNAL CRAYFISH PACIFASTACUS LENIUSCULUS (DANA),IN UPLAND RIVERS

open access: yesKnowledge and Management of Aquatic Ecosystems, 2005
The American signal crayfish, Pacifastacus leniusculus, is an invasive species from North America that has been widely introduced through Europe, where it is a major threat to native European crayfish species and causing increasing concern because of its
BUBB D. H., THOM T. J., LUCAS M. C.
doaj   +1 more source

Synergies Between Anthropogenic Litter and Biopollution in SW Bay of Biscay Rivers Discovered Through Citizen Science: Implications for Conservation

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 8, August 2025.
ABSTRACT Anthropogenic litter and other pollutants are known to contribute to the introduction and settlement of invasive alien species (IAS) in marine settings; however, the relationship between biopollutant IAS and litter in rivers is much less studied.
Eva Garcia‐Vazquez   +12 more
wiley   +1 more source

Lectins and cytokines in celomatic invertebrates: two tales with the same end

open access: yesInvertebrate Survival Journal, 2009
The paper presents the principle data regarding the presence and the roles of lectins and cytokines in invertebrates. The former have been described in the main invertebrate taxa, such molluscs, annelids, arthropods, echinoderms and tunicates, while ...
D Malagoli, S Sacchi, E Ottaviani
doaj  

Dispersal and coexistence of two non-native crayfish species (Pacifastacus leniusculus and Procambarus clarkii) in NE Portugal over a 10-year period

open access: yesKnowledge and Management of Aquatic Ecosystems, 2011
NE Portugal is one of the most isolated and low populated regions of Western Europe. Recently, two American crayfish species reached this area: signal crayfish Pacifastacus leniusculus coming from Spain and red swamp crayfish Procambarus clarkii in its ...
Bernardo J. M.   +3 more
doaj   +1 more source

Lake Hańcza – a new site for signal crayfish (Pacifastacus leniusculus Dana) occurrence in Poland

open access: yesArchives of Polish Fisheries, 2018
Crayfish catches were conducted using traps in Lake Hańcza, which is the deepest lake in Poland. Two crayfish populations were found to co-exist in the lake: spiny-cheek crayfish (Orconectes limosus Raf.) and signal crayfish (Pacifastacus leniusculus ...
Ulikowski Dariusz, Chybowski Łucjan
doaj   +1 more source

Technical challenges in the implementation of macroinvertebrate DNA metabarcoding in river biomonitoring: A case study from peninsular Spain—Advantages, limitations and roadmap

open access: yesEcological Solutions and Evidence, Volume 6, Issue 3, July–September 2025.
This study evaluates the opportunities and challenges of using DNA metabarcoding of river macroinvertebrates for routine ecological status assessment under the EU Water Framework Directive. By reanalysing data from rivers in north‐west Spain, it identifies key sources of false positives and negatives, compares bulk and eDNA sampling with traditional ...
Álvaro Fueyo   +4 more
wiley   +1 more source

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