Results 111 to 120 of about 6,247 (262)

Genetička raznolikost invazivne strane vrste Pacifastacus leniusculus u Hrvatskoj [PDF]

open access: yes, 2017
Signalni rak (Pacifastacus leniusculus) je vrsta autohtona za područje Sjeverne Amerike. Introduciran je na područje Europe i Japana gdje se ubrzo proširio kao invazivna vrsta. U Hrvatskoj je rasprostranjen u rijekama Muri i Dravi u koje se nizvodno proširio iz Slovenije te u rijeci Korani u koju je nedavno ilegalno unesen.
Mijošek Pavin, Tatjana   +2 more
openaire   +2 more sources

Coexistência de duas espécies exóticas de lagostins (Pacifastacus leniusculus e Procambarus clarkii) na bacia hidrográfica do rio Sabor (NE Portugal) [PDF]

open access: yes, 2010
Em Portugal existia uma única espécie europeia de lagostim de água doce, Austropotamobius pallipes, o lagostim-de-patas-brancas, que se considera actualmente extinta no país. No nordeste de Portugal continental onde anteriormente ocorria esta espécie, os
Bernardo, J.M.   +3 more
core  

Signalkreps (Pacifastacus leniusculus) i Norge - Historikk, utbredelse og bestandsstatus

open access: yes, 2021
Johnsen, S.I., Strand, D.A., Vrålstad, T., Kollerud, E., Bergerud, J., Sandem, K., Sandodden, R. & Wivestad, T. 2021. Signalkreps (Pacifastacus leniusculus) i Norge - Historikk, utbredelse og bestandsstatus. NINA Rapport 1991. Norsk institutt for naturforskning. Signalkreps (Pacifastacus leniusculus) ble oppdaget for første gang i Norge i 2006.
Johnsen, Stein I.   +7 more
openaire   +1 more source

Trapping for invasive crayfish: comparisons of efficacy and selectivity of baited traps versus novel artificial refuge traps

open access: yesKnowledge and Management of Aquatic Ecosystems, 2018
Non-native crayfish can dominate the invertebrate biomass of invaded freshwaters, with their high ecological impacts resulting in their populations being controlled by numerous methods, especially trapping. Although baited funnel traps (BTs) are commonly
Green Nicky   +4 more
doaj   +1 more source

Inventory of the Decapod Crustaceans (Crayfishes and Shrimps) of Arkansas with a Discussion of Their Habitats [PDF]

open access: yes, 1980
The freshwater decapod crustaceans of Arkansas presently consist of two species of shrimps and 51 taxa of crayfishes divided into 47 species and four subspecies. The shrimps are represented by Macrobranchium ohione and Palaemonetes kadiakensis.
Bouchard, Raymond W., Robison, Henry W.
core   +2 more sources

Movement and interaction of two exotic crayfish (Pacifastacus leniusculus and Procambarus clarkii) using PIT telemetry in experimental conditions [PDF]

open access: yes, 2009
The coexistence of two exotic crayfish species (Procambarus clarkii and Pacifastacus leniusculus) was observed in a stretch of Rio Maçãs (Douro basin, Northeast of Portugal). The red swamp crayfish, P.
Bernardo, J.M.   +3 more
core  

Exponential increase of signal crayfish in running waters in Sweden – due to illegal introductions?

open access: yesKnowledge and Management of Aquatic Ecosystems, 2011
Sweden has only one indigenous species of crayfish, the noble crayfish (Astacus astacus, Fabricius). There has been a steady decline of noble crayfish populations in Sweden since 1907, mainly due to the crayfish plague.
Bohman P.   +3 more
doaj   +1 more source

A Structural Analysis of the Spermatophore of Runcina Ferruginea Kress (Opisthobranchia: Cephalaspidea) [PDF]

open access: yes, 2017
A spermatophore is defined as a capsule of albuminous matter containing a number of sperm. Among opisthobranchs the families Retusidae, Philinoglossidae, Bullidae, Atydae and Runcinidae are all said to possess a copulatory apparatus which stores sperm ...
Kress, Annetrudi
core  

Desiccation survival capacities of two invasive crayfish species

open access: yesKnowledge and Management of Aquatic Ecosystems, 2014
The signal crayfish, P. leniusculus and the red swamp crayfish, P. clarkii are two invasive crayfish species with widely world distribution, being both present at Iberian Peninsula.
Banha F., Anastácio P.M.
doaj   +1 more source

The freshwater crayfish Austropotamobius pallipes in South Tyrol. Heritage species and bioindicator [PDF]

open access: yes, 2003
Rapid decline of crayfish in European freshwaters and continuing threat necessitate integrated actions in conservation and management of native crayfish populations.
Fureder, L.   +4 more
core   +1 more source

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