Results 81 to 90 of about 4,765 (225)

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

, 2003
Rapid decline of crayfish in European freshwaters and continuing threat necessitate integrated actions in conservation and management of native crayfish populations.
Fureder, L., Hanel, Reinhold, Leiter, J., Oberkofler, B., Thaler, B.   +4 more
core   +1 more source

Rapid Establishment and Impact Assessment of the Redclaw Crayfish (Cherax quadricarinatus) Invasion in the Kruger National Park, South Africa

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 7, July 2025.
ABSTRACT Amidst the rapid degradation of the environment, protected areas act as a buffer for sensitive species against drivers of change. The Kruger National Park, in the Zambezian Lowveld Freshwater Ecoregion, encompasses two critical transboundary river basins, which are threatened by overexploitation, climate change and nonnative invasive species ...
Josie South, Olivia Stubbington, Angelica Kaiser‐Reichel, Esi Bossman, Nikisha Singh, Mmathapelo Mthembu, Michael D. Voysey, Taylor Maavara, Gordon O'Brien, Kedibone Masenya, Dumisani Khosa   +10 more
wiley   +1 more source

FRESHWATER CRAYFISH IN SOUTH TYROL (ITALY): DISTRIBUTION AND PROTECTION MEASURES OF ENDANGERED AUSTROPOTAMOBIUS PALLIPE

Knowledge and Management of Aquatic Ecosystems, 2002
Freshwater crayfish are among the most endangered animals in Europe. Information on freshwater crayfish in the Italian province of South Tyrol was insufficient until the recent studies on their historical and present distribution, which showed the ...
FÜREDER L., OBERKOFLER B., HANEL R., MACHINO Y.   +3 more
doaj   +1 more source

Interacção entre duas espécies exóticas de lagostins (pacifastacus leniusculus e procambarus clarkii): estudo experimental com recurso à PIT-telemetria [PDF]

, 2010
No rio Maçãs (bacia do Rio Douro), no Nordeste de Portugal, coexistem duas espécies de lagostins exóticos, o lagostim vermelho da Louisiana (Procambarus clarkii) e o lagostim sinal (Pacifastacus leniusculus).
Bernardo, J.M., Bruxelas, S., Costa, A.M., Nogueira, Mónica Sofia Reis, Teixeira, Amílcar   +4 more
core  

Understanding the threats posed by non-native species: public vs. conservation managers. [PDF]

, 2013
Public perception is a key factor influencing current conservation policy. Therefore, it is important to determine the influence of the public, end-users and scientists on the prioritisation of conservation issues and the direct implications for policy ...
A Bremner, AD Middleton, AT Knight, C MacNeil, Carlos Garcia de Leaniz, CJ Loucks, D Andreou, D Andreou, D Andreou, D Andreou, D Burnard, Dean Burnard, Demetra Andreou, F Gherardi, GH Copp, GH Copp, GL Harvey, J Turgeon, J. Robert Britton, JLC Stinchcombe, JP Bailey, JR Britton, M Majerus, MJ Novacek, PJ Seddon, RE Gozlan, RE Gozlan, RE Gozlan, RE Gozlan, RE Gozlan, RK Paley, Rodolphe E. Gozlan, RZ Guan, S Bertolino, SJ Manchester, SK Jacobson, TB Lauber, TH Tear, VM Stankovic, WL Linklater   +39 more
core   +3 more sources

Prioritising Non‐Native Crayfish Species for Management in the Rhine‐Main Observatory Using the Dispersal‐Origin‐Status‐Impact (DOSI) Scheme

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 7, July 2025.
ABSTRACT Managing non‐native species remains a critical challenge in biodiversity conservation, highlighting the need for effective prioritisation frameworks that integrate ecological, economic and policy considerations. Given that biological invasions are a population‐level rather than a species‐level phenomenon, more nuanced assessment schemes are ...
Phillip J. Haubrock, Ali Serhan Tarkan, Dagmara Błońska, Alexandru Gora, Lucian Pârvulescu, Antonín Kouba, Ismael Soto   +6 more
wiley   +1 more source

RELATIONSHIPS BETWEEN CHANGES IN HABITAT CONDITIONS AND POPULATION DENSITY OF AN INTRODUCED POPULATION OF SIGNAL CRAYFISH (PACIFASTACUS LENIUSCULUS IN A FLUVIAL SYSTEM.

Knowledge and Management of Aquatic Ecosystems, 2001
After the disappearance of the native crayfish in many rivers in Biscay, Basque Country, Spain, the signal crayfish Pacifastacus leniusculus was introduced in the main fluvial stretches and several breeding populations have established.
RALLO A., GARCIA-ARBERAS L., ANTON A.
doaj   +1 more source

The effect of water temperature on the number of moults and growth of juvenile signal crayfish Pacifastacus leniusculus Dana

Czech Journal of Animal Science, 2009
The growth rate, frequency of moulting, and intermoult intervals of juvenile Pacifastacus leniusculus were studied under experimental conditions over a period of 3 months.
P. Kozák, M. Buřič, J. Kanta, A. Kouba, P. Hamr, T. Policar   +5 more
doaj   +1 more source

Colonization and dispersal rates of two non-native crayfish species (Pacifastacus leniusculus and Procambarus clarkii) in NE Portugal [PDF]

, 2010
In Europe, a generalized regression of the native crayfish was observed during the past decades. Simultaneously, several non-native species spread in most countries.
Bernardo, J.M., Bruxelas, S., Costa, A.M., Teixeira, Amílcar   +3 more
core  

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

, 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., Strand, David A., Vrålstad, Trude, Kollerud, Elin, Bergerud, Johan, Sandem, Kjetil, Sandodden, Roar, Wivestad, Terje   +7 more
openaire   +1 more source