Results 221 to 230 of about 5,745 (237)

Nikkelin kertyminen täplärapuun (Pacifastacus leniusculus) kahdessa eri lämpötilassa

2017
Nickel accumulation in signal crayfish (Pacifastacus leniusculus) at two different temperatures. Metal emissions caused by industrial mining activities are a world-wide environmental problem. In these emissions metals are often in the form of sulfide or chloride which are readily bioavailable to biota.
openaire   +1 more source

Copulatory behavior of the crayfish, Pacifastacus trowbridgii (Stimpson)

Canadian Journal of Zoology, 1970
The copulatory behavior of P. trowbridgii is described. The process is categorized sequentially as follows: (1) chelae contact, (2) seizure, (3) turning over, (4) mounting, (5) erection and locking of gonopods, (6) spermatophore deposition, (7) unlocking and recession of the gonopods, (8) release of the female, (9) dismounting, and (10) postcopulatory
openaire   +1 more source

Signaalvähk (Pacifastacus leniusculus) Eestis, liigi mõju jõevähile ning võimalikud tõrjemeetmed

2012
Käesoleva töö eesmärgiks oli anda ülevaade signaalvähi (Pacifastacus leniusculus) levikust, arvukusest ja populatsiooni struktuurist Eesti veekogudes ning selgitada võõrliigi mõju meie jõevähi (Astacus astakus) asurkondadele. Lisaks oli eesmärgiks signaalvähi likvideerimise ja leviku takistamise võimaluste hindamine.
openaire   +2 more sources

Variations in host surfaces morphology and biology of ciliate epibionts explaining distribution pattern of epibionts in the invasive signal crayfish Pacifastacus leniusculus (Dana, 1852)

Journal of Zoology, 2022
A. Dobrzycka-Krahel, L. Rolbiecki, J. Karczewski, M. Skóra   +3 more
semanticscholar   +1 more source

Täpläravun (Pacifastacus leniusculus) vaikutus Säkylän Pyhäjärven siian poikastuotantoon

2015
unknown ...
openaire   +1 more source

Ecological characteristics of invasive signal crayfish (Pacifastacus leniusculus) in Croatia

2010
Non-indigenous crayfish species (NICS), namely signal crayfish (Pacifastacus leniusculus) has been recorded in the Croatian part of the Mura River in 2008. . Its presence in the Mura River is probably a consequence of its spread from upstream segments of the river in Slovenia and Austria.
Lajtner, Jasna, Hudina, Sandra, Lucić, Andreja   +2 more
openaire   +1 more source

Jokiravun (Astacus astacus) ja täpläravun (Pacifastacus leniusculus) sopeutuminen virtavesiin

2008
unknown ...
openaire   +1 more source

Täpläravun (Pacifastacus leniusculus) vaikutus ahventen (Perca fluviatilis) loisyhteisöihin Päijänteellä

2010
unknown ...
openaire   +1 more source

Pacifastacus leniusculus and Austropotamobius torrentium prefer different substrates

1999
Vorburger, Christoph, Ribi, Georg
openaire   +2 more sources

Biotic and abiotic controls of burrowing by signal crayfish (Pacifastacus leniusculus) and the implications for sediment recruitment to rivers

, 2021
H. Sanders
semanticscholar   +1 more source