Results 51 to 60 of about 1,874 (116)

SPECIES OF BRANCHIOBDELLIDAE (ANNELIDA) ON FRESHWATER CRAYFISH IN SOUTH TYROL (NORTHERN ITALY)

Knowledge and Management of Aquatic Ecosystems, 2002
Twenty-eight freshwater crayfish were collected from 8 streams and one small lake in the province of South Tyrol (North Italy) from autumn 1999 to spring 2001, in order to investigate the presence of branchiobdellidans.
OBERKOFLER B., QUAGLIO F., FÜREDER L., FIORAVANTI M. L., GIANNETTO S., MOROLLI C., MINELLI G.   +6 more
doaj   +1 more source

East European crayfish stocks at risk: arrival of non-indigenous crayfish species

Knowledge and Management of Aquatic Ecosystems, 2016
An increasing number of non-indigenous crayfish species (NICS) of apparently pet trade origin have become established particularly in Europe. Especially alarming are recent confirmation of two distantly separated marbled crayfish Procambarus fallax f ...
Kotovska Ganna, Khrystenko Dmytro, Patoka Jiří, Kouba Antonín   +3 more
doaj   +1 more source

The Freshwater Crayfishes of Australia

Proceedings of the Zoological Society of London, 1912
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +3 more sources

The “Gastric Mill” of the Crayfish [PDF]

Nature, 1880
FOR demonstrating the structure and action of the elaborate gizzard of the crayfish, which I have found to be usually regarded as a hopeless puzzle, I have constructed, in Prof. Lankester's laboratory at University College, at his suggestion and for the use of his class of practical zoology, a little model, the simplicity of which enables any student ...
openaire   +2 more sources

First evidence of crayfish plague agent in populations of the marbled crayfish (Procambarus fallax forma virginalis)

Knowledge and Management of Aquatic Ecosystems, 2014
The introduction of non-indigenous species and associated diseases can cause declines in indigenous flora and fauna and threaten local biodiversity.
Keller N.S., Pfeiffer M., Roessink I., Schulz R., Schrimpf A.   +4 more
doaj   +1 more source

The attachment of muscles to the exoskeleton in the crayfish, and the structure of the crayfish epiderm [PDF]

American Journal of Anatomy, 1912
n ...
openaire   +1 more source

Crayfish distribution updating in central Italy [PDF]

Knowledge and Management of Aquatic Ecosystems, 2009
Introductions of non-indigenous crayfish have received great attention from biologists and policy makers during the last decade. Purposes of this study are to update the knowledge about the crayfish distribution in Latium (central Italy), and to show how
M. Scalici, M. Pitzalis, G. Gibertini
doaj  

Status of freshwater crayfish (Astacus leptodactylus) in Iran

Knowledge and Management of Aquatic Ecosystems, 2011
Iranian native crayfish includes one crayfish species, Astacus leptodactylus, with two subspecies, A. l. leptodactylus (lives in freshwater) and A. l. eichwaldi (lives in the Caspian Sea with 12 ppt salinity).
Karimpour M., Harlioğlu M.M., Aksu Ö.
doaj   +1 more source

Invasive signal crayfish and native noble crayfish show trophic niche shrinkage in sympatry [PDF]

NeoBiota
Studying the coexistence of native species and invasive species with similar functional traits, habitat usage, and feeding habits is crucial for understanding the dynamics of invasion and ecological changes in the invaded ecosystem.
Fabio Ercoli, Timo J. Ruokonen, Martin Bláha, Antonín Kouba, Miloš Buřič, Lukaš Veselý   +5 more
doaj   +3 more sources

Ecological plasticity and commercial impact of invasive marbled crayfish populations in Madagascar

BMC Ecology, 2019
Background The marbled crayfish (Procambarus virginalis) is a monoclonal, parthenogenetically reproducing freshwater crayfish species that has formed multiple stable populations worldwide.
Ranja Andriantsoa, Sina Tönges, Jörn Panteleit, Kathrin Theissinger, Vitor Coutinho Carneiro, Jeanne Rasamy, Frank Lyko   +6 more
doaj   +1 more source