Results 41 to 50 of about 808 (171)

Pacifastacus leniusculus

, 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.
openaire   +2 more sources

First Record of Microsporidia Infection in the Damselfly Ischnura elegans Larvae: Temperature and Predator Cue Effects on the Host’s Life History

Diversity, 2022
Here, we report, for the first time, a microsporidian infection in laboratory-reared larvae of the damselfly Ischnura elegans. Infected larvae originated from field-collected adult females, which were caught in southern Poland in August 2020 (the second ...
Andrzej Antoł, Anna Maria Labecka, J. I. Ronny Larsson, Szymon Sniegula   +3 more
doaj   +1 more source

Molecular Characterisation of Endangered White‐Clawed Crayfish Populations in Southern Switzerland

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 3, March 2026.
ABSTRACT This study investigates the phylogeography of the endangered European White‐Clawed Crayfish (WCC) Austropotamobius pallipes species complex in the main tributaries of the Po River basin in southern Switzerland and northern Italy, a diversity hotspot for this species.
Sebastian Prati, Christophe Molina, Daniel S. Grabner, Bernd Sures   +3 more
wiley   +1 more source

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

Knowledge 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., PAWLOS D., FORMICKI K., SMIETANA P.   +3 more
doaj   +1 more source

River Connectivity in Dammed Areas Studied Through Environmental DNA Metabarcoding at Community and Species Levels

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT The field of environmental DNA (eDNA) is rapidly expanding with established applications in biodiversity monitoring, rare species detection and ecological assessment. However, its potential to evaluate species connectivity in fragmented aquatic systems remains underexplored.
Sara Fernández, Alba Ardura, Eva Garcia‐Vazquez   +2 more
wiley   +1 more source

First detection of Aphanomyces astaci and its potential responsibility for mass mortalities of Pontastacus (Astacus) leptodactylus in Greek lakes

Journal of Biological Research - Thessaloniki
Aphanomyces astaci is a pathogen categorized among the 100 worst invasive alien species, responsible for the crayfish plague disease. In the past, many disease outbreaks devastated native European crayfish populations.
Maria V Alvanou, Athanasios Lattos, Maria Th Cheimonopoulou, Basile Michaelidis, Apostolos P Apostolidis, Ioannis A Giantsis   +5 more
doaj   +1 more source

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

Invertebrate Survival Journal, 2010
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, E Ottaviani, S Sacchi
doaj  

EXTENSION D’UNE ESPÈCE ENVAHISSANTE : SUIVI DE LA POPULATION D’ÉCREVISSES SIGNAL (PACIFASTACUS LENIUSCULUS DANA) AU LÉMAN À L’OUEST DE THONON-LES-BAINS, ENTRE 2001 ET 2005 – IMPACT DE LA PÊCHE

Knowledge and Management of Aquatic Ecosystems, 2006
La population d’écrevisses signal arrivées en 1976 dans le Léman continue son expansion le long de la zone littorale à l’ouest de Thonon-les-Bains. En 2001, la population s’étendait jusqu’à Séchex avec une forte densité (82 indiv./nasse) de Thonon à ...
DUBOIS J.-P., GILLET C., MICHOUD M.
doaj   +1 more source

Impact of the Highly Invasive Signal Crayfish (Pacifastacus leniusculus) on Freshwater Macroinvertebrate Communities

Freshwater Biology, Volume 71, Issue 2, February 2026.
ABSTRACT Invasive non‐native species threaten freshwater ecosystems, disrupting the functioning and structure of the food chain and potentially leading to biodiversity loss. As omnivores, crayfish can modify their environment, directly affecting organisms such as macroinvertebrates.
António Barbosa Nogueira, Bruno Oliveira, Janeide Padilha, Simone Varandas, Amílcar Teixeira, Ronaldo Sousa   +5 more
wiley   +1 more source

Escape rooms: behavioural response of two invasive crayfish species under water decline scenarios

Journal of Limnology
Climate change and invasive alien species pose a significant threat to biodiversity and the survival of native species. This study considered the impact of drought conditions on the escape behaviour through terrestrial dispersal ability of two invasive ...
Daniela Ghia, Gianluca Fea, Fabio Ercoli, Roberto Sacchi   +3 more
doaj   +1 more source