Results 51 to 60 of about 6,164 (251)

Physiological Responses to Acute Silver Exposure in the Freshwater Crayfish (\u3cem\u3eCambarus diogenes diogenes\u3c/em\u3e)—A Model Invertebrate? [PDF]

open access: yes, 2002
Adult crayfish (Cambarus diogenes diogenes) exposed to 8.41 ± 0.17 μg silver/L (19.4% as Ag+) in moderately hard freshwater under flow-through conditions for 96 h exhibited ionoregulatory disturbance, elevated metabolic ammonia (Tamm) production and ...
Bianchini, Adalto   +5 more
core   +1 more source

Temperature sensitivity of the pyloric neuromuscular system and its modulation by dopamine [PDF]

open access: yes, 2013
We report here the effects of temperature on the p1 neuromuscular system of the stomatogastric system of the lobster (Panulirus interruptus). Muscle force generation, in response to both the spontaneously rhythmic in vitro pyloric network neural activity
Burstein, Helaine J.   +4 more
core   +2 more sources

Comparison of Heavy Metal Accumulation Levels in Abdominal Muscles of Crayfish (Astacus leptodactylus Esch., 1823) from Kılıçkaya Reservoir, Sivas, Turkey

open access: yesPolish Journal of Environmental Studies
In this study, heavy metal accumulation levels in females and males of the abdominal muscles of fresh-water crayfish ( Astacus leptodactylus Esch.,1823) were compared by using the atomic absorption spec - trophotometry method in Kılıçkaya Reservoir ...
Seher Dirican
semanticscholar   +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

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  

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

Freshwater crayfish in Bosnia and Herzegovina: the first report on their distribution

open access: yesKnowledge and Management of Aquatic Ecosystems, 2011
The aim of this research paper is to present available data on the distribution of freshwater crayfish in Bosnia and Herzegovina, including data from the literature and those of our own investigations.
Trožić-Borovac S.
doaj   +1 more source

Narrow-clawed crayfish in Finland: Aphanomyces astaci resistance and genetic relationship to other selected European and Asian populations

open access: yesKnowledge and Management of Aquatic Ecosystems, 2020
The narrow-clawed crayfish (Pontastacus leptodactylus) is an alien species in Finland with only a few populations reported from the southeastern region during the last century.
Jussila Japo   +4 more
doaj   +1 more source

The distribution of native and introduced species of crayfish in Austria [PDF]

open access: yes, 1999
This account concentrates on the six species of crayfish found in Austria, and the current state of knowledge on their distribution and laws affecting conservation.
Pockl, Manfred
core  

Effects of Dietary Calcium and Magnesium Levels on the Growth Performance, Tissue Mineral Deposition, Exoskeleton Development, and Molting Performance of Chinese Mitten Crab (Eriocheir sinensis)

open access: yesAquaculture Nutrition, Volume 2026, Issue 1, 2026.
Calcium and magnesium are essential mineral elements for animal growth and development, playing crucial roles in skeletal formation, particularly in the molting process of crustaceans. However, their interaction is still poorly elucidated. This study investigated the effects of dietary calcium and magnesium levels on the growth performance, tissue ...
Han Chen   +10 more
wiley   +1 more source

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