Results 11 to 20 of about 7,514 (259)
DETERMINATION OF HEAVY METALS CONTENT IN ASTACUS LEPTODACTYLUS CASPICUS IN ANZALI LAGOON [PDF]
Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2003 With attention to different human activities around Anzali lagoon and entrance different pollutants containing heavy metals into this aquatic ecosystem and alterante absorption and accumulation of heavy metals in shell and muscle of Astacus leptodactylus
maryam paydar1; M. Sharif Fazeli2; A. Riahi Bakhtiari2
doaj +2 more sources
Status and management of noble crayfishAstacus astacusin Estonia [PDF]
Knowledge and Management of Aquatic Ecosystems, 2009 Noble crayfish Astacus astacus (L.) is an indigenous and the only crayfish species in Estonia. It is potentially endangered by invasion of alien species, diseases and habitat deterioration but does not have legal protected status and is fished only for recreational purpose. Crayfish Working Group of Ministry of Environment and Department of Aquaculture
T. Paaver, M. Hurt
openaire +3 more sources
REINTRODUCTION OF ASTACUS ASTACUS L. IN EAST TYROL, AUSTRIA [PDF]
Knowledge and Management of Aquatic Ecosystems, 2004 In Tyrolean like in other European freshwaters, crayfish populations decreased in numbers and qualities. They are today regarded as endangered animals. The Astacus astacus (Linnaeus, 1758) population of historical evidence in Tristacher See and its out ...
SINT D., FÜREDER L.
doaj +2 more sources
Exploring Prey Selectivity and Feeding Habits of Wels Catfish (<i>Silurus glanis</i> L., 1758) in a Deep Anatolian Reservoir: Seasonal, Length, and Age-Dependent Diet Analysis. [PDF]
Aquac NutrFeeding habits and dietary preferences of wels catfish (Silurus glanis) were investigated in Sıddıklı Dam Lake through the examination of 200 individuals. The results revealed that the species predominantly exhibited piscivorous feeding characteristics, with Tinca tinca (IRI% = 78.93) identified as the primary food source. The food items in the stomach
Yazici R, Yilmaz M, Yazicioğlu O.
europepmc +2 more sources
Diversity, 2023 Invasive non-indigenous crayfish species (NICS) are a major threat to the existence of native crayfish populations in European freshwater ecosystems. The discovery of signal crayfish Pacifastacus leniusculus, marbled crayfish Procambarus virginalis, and ...
Michael Oliewo Aluma +3 more
doaj +1 more source
Knowledge and Management of Aquatic Ecosystems, 2022 This contribution presents the first record of the noble crayfish Astacus astacus (Linnaeus, 1758) in Euboea (Evia) Island, Greece. The crayfish was found during a fish monitoring expedition in the upper Mesapios River, in a reach that maintains flow ...
Karaouzas Ioannis +6 more
doaj +1 more source
Jokiravun (Astacus astacus) ja täpläravun (Pacifastacus leniusculus) sopeutuminen virtavesiin
, 2008 unknown ...
Laura Salkonen
openaire +2 more sources
DISTRIBUTION OF CRAYFISH IN SALZBURG, AUSTRIA
Knowledge and Management of Aquatic Ecosystems, 2005 Mapping of crayfish populations in the province of Salzburg was carried out in the years 2002 and 2003. Five crayfish species were found, two of them native: Astacus astacus and Austropotamobius torrentium, and three foreign: Astacus leptodactylus ...
PATZNER R. A. +4 more
doaj +1 more source
Knowledge and Management of Aquatic Ecosystems, 2001 Since 1893, crayfish plague, Aphanomyces astaci Schikora, has devastated Finland’s most productive populations of the native noble crayfish, Astacus astacus, causing great losses to once very valuable fisheries and exports.
WESTMAN K., SAVOLAINEN R.
doaj +1 more source
NATIVE AND ALIEN DECAPODA SPECIES IN HUNGARY:DISTRIBUTION, STATUS, CONSERVATION IMPORTANCE
Knowledge and Management of Aquatic Ecosystems, 2005 Three native (Astacus astacus, Astacus leptodactylus, Austropotamobius torrentium) and three alien (Orconectes limosus, Pacifastacus leniusculus, Eriocheir sinensis) Decapoda species have been found in Hungary so far. A.
PUKY M., REYNOLDS J. D., SCHÁD P.
doaj +1 more source