Results 41 to 50 of about 398 (157)

Aphanomyces astaci PsI-genotype isolates from different Finnish signal crayfish stocks show variation in their virulence but still kill fast

Knowledge and Management of Aquatic Ecosystems, 2013
We detected significant virulence differences among five tested (PsI-Puujärvi, PsI-Pyhäjärvi, PsI-Kukkia, PsI-Saimaa I and PsI-Saimaa II) PsI-genotype crayfish plague (Aphanomyces astaci) isolates against lake Mikitänjärvi noble ...
Jussila J., Kokko H., Kortet R., Makkonen J.   +3 more
doaj   +1 more source

Multiple global‐change drivers and cascading effects in Mediterranean ecosystems: Lessons from an iconic national park

Conservation Science and Practice, Volume 8, Issue 6, June 2026.
Mediterranean ecosystems face complex, multi‐trophic impacts from global‐change drivers, yet responses are often studied in isolation. Using the Doñana Protected Area as a case study, we illustrate how anthropogenic pressures on key species like cork oaks and rabbits, as well as increases in species like wild boar and invasive crayfish, lead to ...
Maria Paniw, Duarte S. Viana, Cristina Coccia, Virginia Domínguez‐García, Iñigo Donázar‐Aramendía, Sebastiano de Franciscis, Alberto García‐Rodríguez, Simone Guareschi, Pablo Homet, Jose B. Lanuza, Cosme López‐Calderón, Irene Mendoza, Eva Moracho, Laetitia M. Navarro, Javier Puy, José M. Reyes‐González, María José Ruiz‐López, Zulima Tablado, Elena Tena, Estefanía Tobajas, Elena Velado‐Alonso, Pablo Villalva, Nacho Villar, Marcello D'Amico   +23 more
wiley   +1 more source

Money Kills Native Ecosystems: European Crayfish as an Example

Frontiers in Ecology and Evolution, 2021
Native European crayfish conservation was triggered by invasion of crayfish plague disease agent, Aphanomyces astaci, starting 1860s in Northern Italy.
Japo Jussila, Lennart Edsman, Ivana Maguire, Javier Diéguez-Uribeondo, Kathrin Theissinger, Kathrin Theissinger   +5 more
doaj   +1 more source

Freshwater Mussel Anodonta cygnea Reduces Concentration, Germination Rate and Infectivity of Pathogenic Oomycete Saprolegnia spp. Spores

Freshwater Biology, Volume 71, Issue 6, June 2026.
ABSTRACT Saprolegniosis, also known as water mould, is a lethal disease caused by Saprolegnia oomycetes that threatens freshwater animals including fish, amphibians, and crustaceans, as well as aquaculture. It causes biodiversity loss and population declines, including those of endangered fishes.
Ville Julkunen, Viivi Pakarinen, Tiina Korkea‐aho, Satu Viljamaa‐Dirks, Jouni Taskinen, Katja Pulkkinen   +5 more
wiley   +1 more source

Aphanomyces astaci in Mexico: A new haplotype from dwarf crayfish Cambarellus montezumae

Journal of Invertebrate Pathology, 2023
The crayfish plague is an emerging infectious disease caused by the pathogen Aphanomyces astaci (Oomycota), which is responsible for the decimation of Eurasian freshwater crayfish. This pathogen can coexist with the North American crayfish. These are chronic carriers of the disease as consequence of an immune response that can contain the growth of the
Laura Martín-Torrijos, Ariadne Hernández-Pérez, Jorge Francisco Monroy-López, Javier Diéguez-Uribeondo   +3 more
openaire   +3 more sources

Genomic, Network, and Phylogenetic Analysis of the Oomycete Effector Arsenal

mSphere, 2017
The oomycetes are a class of microscopic, filamentous eukaryotes within the stramenopiles-alveolate-Rhizaria (SAR) supergroup and include ecologically significant animal and plant pathogens.
Jamie McGowan, David A. Fitzpatrick
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

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

Temporal variation in the prevalence of the crayfish plague pathogen, Aphanomyces astaci, in three Czech spiny-cheek crayfish populations

Knowledge and Management of Aquatic Ecosystems, 2011
North American crayfish species are natural hosts of the crayfish plague pathogen Aphanomyces astaci. The spiny-cheek crayfish Orconectes limosus, widespread in Central Europe, is the main reservoir of A.
Matasová K., Kozubíková E., Svoboda J., Jarošík V., PetruseK A.   +4 more
doaj   +1 more source

Quantitative Metabarcoding Reveals the Effects of Ecological Factors and Invasive Species on Functional Diversity of Freshwater Insects

Molecular Ecology, Volume 35, Issue 1, January 2026.
ABSTRACT Aquatic insects are the most biodiverse freshwater animals. DNA metabarcoding data are increasingly used to assess variation in insect communities, but they are rarely integrated with information on the abundance or biomass of different taxa that can provide key insights into their functional responses.
Elia Lo Parrino, Isabel Cantera, Alessia Guerrieri, Benedetta Barzaghi, Mattia Falaschi, Martina Muraro, Serena Pozzi, Raoul Manenti, Gentile Francesco Ficetola   +8 more
wiley   +1 more source