Preparation and Characterization of Crayfish (Astacus leptodactylus) Chitosan with Different Deacetylation Degrees. [PDF]
Iran J Biotechnol, 2023 In this study, chitosan with various deacetylation degrees was extracted from crayfish (Astacus leptodactylus) shells with the purpose of examining the effect of deacetylation on the characterization of chitosan.Recycling of wastes has become an important issue with the advancement of shellfish processing technology.
Kadak AE, Küçükgülmez A, Çelik M.
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The reaction of nitrite with the haemocyanin of Astacus leptodactylus. [PDF]
Biochem J, 1988 The reaction of nitrite at pH 5.7 with deoxyhaemocyanin of Astacus leptodactylus yielded methaemocyanin in two one-electron steps, as nitrite was reduced to NO. This methaemocyanin could be almost fully regenerated by an anaerobic treatment with HONH2, in contrast with the methaemocyanin prepared with H2O2.
Tahon JP +5 more
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High-throughput discrimination of bacteria isolated from Astacus astacus and A. leptodactylus [PDF]
Knowledge and Management of Aquatic Ecosystems, 2014 Bacterial diseases and pathogens of crayfish are common, widespread, and occasionally causing serious mortalities. In order to take rapid measures for correct treatment of crayfish diseases, the turnover time and accuracy in bacterial
Topić Popović N. +8 more
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Elevage de l'écrevisse (Astacus leptodactylus) en France [PDF]
Knowledge and Management of Aquatic Ecosystems, 1981 La production d'écrevisses de consommation en élevage contrôlé en est encore à ses débuts. L'examen de résultats obtenus en France avec l'espèce Astacus leptodactylus a permis de faire le point sur les possibilités offertes actuellement par cet élevage :
MASSÉ J.
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Status of freshwater crayfish (Astacus leptodactylus) in Iran [PDF]
Knowledge and Management of Aquatic Ecosystems, 2011 Iranian native crayfish includes one crayfish species, Astacus leptodactylus, with two subspecies, A. l. leptodactylus (lives in freshwater) and A. l. eichwaldi (lives in the Caspian Sea with 12 ppt salinity).
Karimpour M., Harlioğlu M.M., Aksu Ö.
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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.
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Physiology of Ovarian Development in Crustaceans: Interactions Among Hormones, Nutrients, and Environmental Factors From Integrated Perspectives. [PDF]
Aquac NutrReproductive maturation remains a central bottleneck in crustacean aquaculture, as ovarian development dictates broodstock quality, fecundity, and larval viability. This review synthesizes current knowledge on the physiological regulation of ovarian maturation in decapod crustaceans, emphasizing the interplay of hormones, nutrients, and environmental ...
Dildar T, Cui W, Ma H.
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Monitoring of noble, signal and narrow-clawed crayfish using environmental DNA from freshwater samples. [PDF]
PLoS ONE, 2017 For several hundred years freshwater crayfish (Crustacea-Decapoda-Astacidea) have played an important ecological, cultural and culinary role in Scandinavia.
Sune Agersnap +8 more
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Optimal Tryptophan Improved Growth and Regulated Agonistic Behavior of Oriental River Prawn, <i>Macrobrachium nipponense</i>. [PDF]
Aquac NutrTryptophan, recognized as the third limiting amino acid, plays a crucial physiological function. The optimal tryptophan requirement for oriental river prawn (Macrobrachium nipponense) was assessed, and its impact on agonistic behavior was evaluated in this study. An 8‐week feeding trial was implemented with six different tryptophan levels: 0.07%, 0.17%,
Cao S +5 more
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Influence of temperature on embryonic development of Pontastacus leptodactylus freshwater crayfish, and characterization of growth and osmoregulation related genes [PDF]
BMC ZoologyNarrow clawed crayfish, Pontastacus (Astacus) leptodactylus, represents an ecologically and economically valuable freshwater species. Despite the high importance of artificial breeding for conservation purpose and aquaculture potential, hatching ...
Maria V. Alvanou +6 more
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