Results 31 to 40 of about 865 (176)

THE STONE CRAYFISH AUSTROPOTAMOBIUS TORRENTIUM (SCHRANK) IN THE CZECH REPUBLIC

open access: yesKnowledge and Management of Aquatic Ecosystems, 2002
Five species of crayfish, comprising two native species Austropotamobius torrentium and Astacus astacus, one introduced European species, Astacus leptodactylus and two alien American species, Orconectes limosus and Pacifastacus leniusculus, occur in open
KOZAK P., DURIS Z., POLICAR T.
doaj   +1 more source

Molecular Characterisation of Endangered White‐Clawed Crayfish Populations in Southern Switzerland

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 3, March 2026.
ABSTRACT This study investigates the phylogeography of the endangered European White‐Clawed Crayfish (WCC) Austropotamobius pallipes species complex in the main tributaries of the Po River basin in southern Switzerland and northern Italy, a diversity hotspot for this species.
Sebastian Prati   +3 more
wiley   +1 more source

UTILIZATION OF WATER CRESS (NASTURTIUM OFFICINALE L.) IN NOBLE CRAYFISH (ASTACUS ASTACUS) FEEDING

open access: yesKnowledge and Management of Aquatic Ecosystems, 2006
Juvenile Astacus astacus (initial b.w.: 0.98 ± 0.06 g) were cultured (30 crayfish/m2) in 200l tanks for 69 days. The experimental design was composed of three treatments as follows: control diet (C) (crude protein: 28.4% of the total dried matter, “DM ...
D’AGARO E.
doaj   +1 more source

Functional and Nutraceutical Properties of Protein and Polyphenols Extracted From Agro‐Industrial Waste: A Comprehensive Review

open access: yeseFood, Volume 7, Issue 1, February 2026.
The article underscores the promising future perspectives of utilizing agro‐industrial waste, envisioning sustainable production processes, and meeting the increasing demand for environmentally friendly and health‐promoting products. ABSTRACT The growing imperative for increased food production has propelled an example alteration in the perception of ...
Fakhar Islam   +9 more
wiley   +1 more source

OCCURENCE OF THE PATHOGEN PSOROSPERMIUM HAECKELI (HILGENDORF) IN ASTACID POPULATIONS IN CROATIA

open access: yesKnowledge and Management of Aquatic Ecosystems, 2004
Psorospermium haeckeli is a thick-walled unicellular organism widely reported in European astacid crayfish. It is typically referred to as a “parasite” although its pathogenic impact remains unclear.
LUCIC A., MAGUIRE I., ERBEN R.
doaj   +1 more source

Impact of the Highly Invasive Signal Crayfish (Pacifastacus leniusculus) on Freshwater Macroinvertebrate Communities

open access: yesFreshwater Biology, Volume 71, Issue 2, February 2026.
ABSTRACT Invasive non‐native species threaten freshwater ecosystems, disrupting the functioning and structure of the food chain and potentially leading to biodiversity loss. As omnivores, crayfish can modify their environment, directly affecting organisms such as macroinvertebrates.
António Barbosa Nogueira   +5 more
wiley   +1 more source

OCCURRENCE OF NATIVE AND INTRODUCED CRAYFISH IN NORTHEASTERN GERMANY AND NORTHWESTERN POLAND.

open access: yesKnowledge and Management of Aquatic Ecosystems, 2001
On the basis of monitoring undertaken in 300 lakes since 1994, the recent stocking situation for freshwater crayfish in northeastern Germany (Uckermark) and northwestern Poland (Szczecin area) is described. The two native species Astacus astacus (L.) and
SCHULZ R., SMIETANA P.
doaj   +1 more source

Astacus leptodactylus

open access: yes, 2020
Narrow-clawed crayfish Astacus leptodactylus (Eschscholtz, 1823) The distribution of narrow-clawed crayfish is mainly linked with the south-eastern region of the country and more rarely in the rest of Latvia (Bērziņš 1936, Mazītis 1955, 1967, 1971). Earlier evaluations of the distribution of this species have been quite inconsistent.
Aleksejevs, Ēriks, Birzaks, Jānis
openaire   +1 more source

Stress Nutrition in Aquatic Animals: From Definition to Practice

open access: yesReviews in Aquaculture, Volume 18, Issue 1, January 2026.
ABSTRACT Aquaculture faces numerous challenges, with stress being one of the major issues that lead to growth loss, metabolic disorders, weakened immunity, redox imbalance, and organ damage in aquatic animals. Nutritional intervention is one of the effective strategies to address these problems. Traditional research has primarily focused on the impacts
Jian Zhang   +8 more
wiley   +1 more source

DETERMINATION OF HEAVY METALS CONTENT IN ASTACUS LEPTODACTYLUS CASPICUS IN ANZALI LAGOON

open access: yes‬‭Majallah-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  

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