Results 121 to 130 of about 5,540 (248)

Individual food intake measurement of freshwater crayfish (Pacifastacus leniusculus Dana) juveniles

open access: yesAquaculture Research, 2005
The inert marker method for individual food intake measurement of signal crayfish (Pacifastacus leniusculus Dana) juveniles (carapace length (CL) ranged from 16.5 to 25.6 mm and wet weight (WW) from 0.88 to 4.47 g) was evaluated in a series of experiments.
Tero Ahvenharju, Kari Ruohonen
openaire   +1 more source

Lectins and cytokines in celomatic invertebrates: two tales with the same end

open access: yesInvertebrate Survival Journal, 2009
The paper presents the principle data regarding the presence and the roles of lectins and cytokines in invertebrates. The former have been described in the main invertebrate taxa, such molluscs, annelids, arthropods, echinoderms and tunicates, while ...
D Malagoli, S Sacchi, E Ottaviani
doaj  

Searching for a signal: Environmental DNA (eDNA) for the detection of invasive signal crayfish, Pacifastacus leniusculus (Dana, 1852)

open access: yes, 2018
Environmental DNA (eDNA) is a rapid, non-invasive method for species detection and distribution using DNA deposited in the environment by target organisms.
Kirsten J. Harper   +4 more
semanticscholar   +1 more source

DESCRIPTION DE LA ZOOÉPIBIOSE DE L’ÉCREVISSE SIGNAL (PACIFASTACUS LENIUSCULUS, DANA) EN ASTACICULTURE

open access: yesKnowledge and Management of Aquatic Ecosystems, 2002
Des recherches ont été effectuées concernant la zooépibiose de l’écrevisse signal (Pacifastacus leniusculus, D.), provenant d’un centre d’astaciculture espagnol, au cours de la période 1997-1998.
CUELLAR M. C.   +2 more
doaj   +1 more source

Experimental approach for studying structural changes in axonal membrane upon nerve excitation [PDF]

open access: yes, 2011
The Hodgkin and Huxley (HH) model of action potential has become a central paradigm of neuroscience. Despite its ability to predict action potentials with remarkable accuracy, it fails to explain several biophysical findings related to the initiation and
Ahokas, Lauri Juhani
core  

THE WITHIN-CATCHMENT INVASION OF THE NON-INDIGENOUS SIGNAL CRAYFISH PACIFASTACUS LENIUSCULUS (DANA),IN UPLAND RIVERS

open access: yesKnowledge and Management of Aquatic Ecosystems, 2005
The American signal crayfish, Pacifastacus leniusculus, is an invasive species from North America that has been widely introduced through Europe, where it is a major threat to native European crayfish species and causing increasing concern because of its
BUBB D. H., THOM T. J., LUCAS M. C.
doaj   +1 more source

Современное распространение, морфологическая изменчивость и диагностика широкопалого рака Astacus astacus (Linnaeus, 1758) (Decapoda: Astacidae) в Украине [PDF]

open access: yes, 2012
Исследование популяций пресноводных раков северо-востока Украины, проведенное путем анализа аллозимов и морфометрии, доказало, что в Украине, наряду с обычным раком длиннопалым Astacus leptodactylus сохранился исчезающий европейский вид рак широкопалый A.
Жалай, Е. И.   +2 more
core  

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

open access: yesKnowledge 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.   +6 more
doaj   +1 more source

Oregon Lake Watch, 2015 Annual Report [PDF]

open access: yes, 2015
The Oregon Lake Watch (OLW) volunteer monitoring program completed its third year of operation during 2015 with a focus on early detection of aquatic invasive species (AIS) and water quality status and trend assessments for the better management of ...
Cimino, Samuel   +2 more
core   +1 more source

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

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