Results 81 to 90 of about 2,048 (189)

Size structure, maturity size, growth and condition index of stone crayfish (Austropotamobius torrentium) in North-West Croatia

open access: yes, 2011
Austropotamobius torrentium (Schrank, 1803), the smallest species of freshwater crayfish from the family Astacidae, is considered a vulnerable species, protected by international laws.
I. Maguire
semanticscholar   +1 more source

CRAYFISH EPIBIONTS BRANCHIOBDELLA SP. AND HYSTRICOSOMA CHAPPUISI (ANNELIDA: CLITELLATA) IN GREECE

open access: yesKnowledge and Management of Aquatic Ecosystems, 2007
Specimens of the three known Greek crayfish species, Astacus astacus (Linnaeus, 1758), Astacus leptodactylus Eschscholtz, 1823 and Austropotamobius torrentium (Schrank, 1803), were collected from seven localities in Greece and were examined for the ...
SUBCHEV M., KOUTRAKIS E., PERDIKARIS C.
doaj   +1 more source

Diverziteta, razširjenost in gostitelji branhiobdelidov (Clitellata: Branchiobdellida) na zahodnem Balkanu [PDF]

open access: yes
Branchiobdellidan samples obtained from host crustaceans from 60 localities in the Balkan region (Slovenia, Croatia, Montenegro, Bosnia and Herzegovina, North Macedonia, Serbia) were studied based on collections of the University of Ljubljana ...
Shrestkha, Mariia   +2 more
core   +2 more sources

Stone crayfish in the Czech Republic: how does its population density depend on basic chemical and physical properties of water?

open access: yesKnowledge and Management of Aquatic Ecosystems, 2013
The stone crayfish (Austropotamobius torrentium Schrank) is one of the two native crayfish species in the Czech Republic. The populations as well as physical and chemical parameters of water (pH, conductivity, dissolved oxygen ...
Vlach P., Svobodová J., Fischer D.
doaj   +1 more source

Nature Park Papuk [PDF]

open access: yes, 2009
Park prirode je znanstvena i kulturno-odgojna institucija, osnovana radi održavanja prirodnog stanja, očuvanja prirodnih karakteristika i upoznavanja širokih slojeva pučanstva sa zakonitostima prirode.
Lucić, Ika
core   +2 more sources

Distribution, phylogeny, ecology and conservation of crayfish of the family Astacidae in Montenegro [PDF]

open access: yes, 2012
Do danas je u svijetu opisano oko 600 vrsta slatkovodnih (Decapodnih) rakova iz podreda Astacidae. Na području Evrope danas živi pet vrsta autohtonih slatkovodnih rakova iz porodice Astacidae: Astacus astacus, Astacus leptidactilus, Astacus pachypus ...
Rajković, Milka L.
core   +1 more source

ÉVOLUTION DE LA RÉPARTITION DES ÉCREVISSES EN FRANCE MÉTROPOLITAINE SELON LES ENQUÊTES NATIONALES MENÉES PAR LE CONSEIL SUPÉRIEUR DE LA PÊCHE DE 1977 À 2001

open access: yesKnowledge and Management of Aquatic Ecosystems, 2003
Selon les enquêtes nationales menées par le Conseil supérieur de la pêche depuis 1977 en France métropolitaine, la répartition des espèces d’écrevisses montre que les espèces autochtones (Austropotamobius pallipes, Astacus astacus, Austropotamobius ...
CHANGEUX T.
doaj   +1 more source

Benthic invertebrate neozoa in Austrian rivers [PDF]

open access: yes, 2008
Neozoa werden als gebietsfremde Arten definiert, welche nach 1492 direkt oder indirekt durch den Menschen eingeführt wurden und selbstreproduzierende Populationen zu bilden im Stande sind (Essl & Rabitsch 2002). Biologische Invasionen sind schon seit dem
Graf, Wolfram   +3 more
core  

La gestion des écrevisses exotiques envahissantes dans le département des Vosges

open access: yesSciences, Eaux & Territoires, 2012
Depuis la fin du dix-neuvième siècle, la distribution des écrevisses en France a connu de profonds bouleversements, et l'introduction d'écrevisses allochtones en provenance essentiellement du continent nord-américain, a irrémédiablement modifié le ...
M. COLLAS
doaj   +1 more source

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