Results 171 to 180 of about 1,874 (205)
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Update on the spread of Pacifastacus leniusculus in Croatia
Crayfish news, 2011A short overview on the spreading of invasive American signal crayfish in Croatia is given.
Maguire, Ivana +2 more
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State-dependent responses of two motor systems in the crayfish, Pacifastacus leniusculus
Journal of Comparative Physiology A, 1994The expression of both swimmeret and postural motor patterns in crayfish (Pacifastacus leniusculus) were affected by stimulation of a second root of a thoracic ganglion. The response of the swimmeret system depended on the state of the postural system. In most cases, the response of the swimmeret system outlasted the stimulus. Stimulation of a thoracic
A, Chrachri, D, Neil, B, Mulloney
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Sterol requirement of cultured juvenile crayfish, Pacifastacus leniusculus
Aquaculture, 1985Abstract Changes in the sterol composition of an extruded diet revealed that juvenile Pacifastacus leniusculus requires at least 0.4% (dry weight) of dietary sterols for survival. A mixture of plant-derived sterols (phytosterols) is as effective as an equal amount of cholesterol in the partial satisfaction of the requirement. The experimental diet
Louis R. D'Abramo +4 more
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The first record of Pacifastacus leniusculus in Croatia
Crayfish news, 2008The first record of invasive American species P. leniusculus in freshwater ecosystems of Croatia. Species entered Croatia through Mura River from Slovenia.
Zanella, Davor +3 more
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Developmental & Comparative Immunology, 2018
The effects of temperature on the progression of White Spot Disease (WSD) have been studied in the freshwater crayfish Pacifastacus leniusculus. In this study, we aimed to understand the reason for previously observed low mortalities with white spot syndrome virus (WSSV) infected crayfish at low temperatures.
Gül Gizem, Korkut +2 more
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The effects of temperature on the progression of White Spot Disease (WSD) have been studied in the freshwater crayfish Pacifastacus leniusculus. In this study, we aimed to understand the reason for previously observed low mortalities with white spot syndrome virus (WSSV) infected crayfish at low temperatures.
Gül Gizem, Korkut +2 more
openaire +2 more sources
Archives of Environmental Contamination and Toxicology, 2003
Freshly neutralized aluminium (Al) is toxic to a variety of freshwater organisms despite its insolubility at circumneutral pH. Insoluble Al acts exogenously--for example, on the fish gill--thereby impairing respiratory function, and endogenously in grazing and filter-feeding invertebrates following ingestion during drinking and feeding.
Alexopoulos, E. +4 more
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Freshly neutralized aluminium (Al) is toxic to a variety of freshwater organisms despite its insolubility at circumneutral pH. Insoluble Al acts exogenously--for example, on the fish gill--thereby impairing respiratory function, and endogenously in grazing and filter-feeding invertebrates following ingestion during drinking and feeding.
Alexopoulos, E. +4 more
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Resistance of a Northwestern Crayfish, Pacifastacus leniusculus (Dana), to Elevated Temperatures
Transactions of the American Fisheries Society, 1975Abstract Pacifastacus leniusculus from two populations in Washington State, the central Columbia River and a small tributary, were acclimated at 5 C intervals and exposed to elevated temperatures in 48 hour thermal bioassays. The upper lethal temperature for both crayfish populations increased relatively slightly, from about 28.5 to 31.5 C, over the ...
C. Dale Becker +2 more
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Journal of Invertebrate Pathology, 2018
Water temperature is known to affect many aspects of aquatic life including immune responses and susceptibility to diseases. In this context, we studied the effect of temperature on the defense system of the freshwater crayfish Pacifastacus leniusculus.
Gül Gizem, Korkut +3 more
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Water temperature is known to affect many aspects of aquatic life including immune responses and susceptibility to diseases. In this context, we studied the effect of temperature on the defense system of the freshwater crayfish Pacifastacus leniusculus.
Gül Gizem, Korkut +3 more
openaire +2 more sources
European Journal of Biochemistry, 2001
The prophenoloxidase activating enzyme (ppA), a serine proteinase catalyzing the conversion of prophenoloxidase to an active phenoloxidase, has a molecular mass of about 36 kDa in its active form. This protein was cloned from a blood cell cDNA library and its corresponding cDNA of 1736 base pairs encodes a zymogenic protein (proppA) of 468 amino acids.
R, Wang +3 more
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The prophenoloxidase activating enzyme (ppA), a serine proteinase catalyzing the conversion of prophenoloxidase to an active phenoloxidase, has a molecular mass of about 36 kDa in its active form. This protein was cloned from a blood cell cDNA library and its corresponding cDNA of 1736 base pairs encodes a zymogenic protein (proppA) of 468 amino acids.
R, Wang +3 more
openaire +2 more sources
Aquatic Toxicology, 2011
The accumulation and toxicity of aluminium in freshwater organisms have primarily been examined following aqueous exposure. This study investigated the uptake, excretion and toxicity of aluminium when presented as aluminium-contaminated food. Adult Pacifastacus leniusculus were fed control (3 μg aluminium/g) or aluminium-spiked pellets (420 μg ...
Woodburn, Katie +3 more
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The accumulation and toxicity of aluminium in freshwater organisms have primarily been examined following aqueous exposure. This study investigated the uptake, excretion and toxicity of aluminium when presented as aluminium-contaminated food. Adult Pacifastacus leniusculus were fed control (3 μg aluminium/g) or aluminium-spiked pellets (420 μg ...
Woodburn, Katie +3 more
openaire +2 more sources