Results 11 to 20 of about 1,091 (209)
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
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.
europepmc +2 more sources
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
europepmc +2 more sources
Procambarus virginalis Lyko, 2017: A new threat to Iberian inland waters. [PDF]
Ecol EvolWe provide the first record of Procambarus virginalis in the Iberian Peninsula, based on morphological and genetic evidence (molecular barcoding of COI). We discuss its most plausible introduction pathways, update its global geographical distribution, highlight the potential impacts if it becomes invasive in Iberia and recommend some proposal ...
Sánchez O +7 more
europepmc +2 more sources
Генетична диференціація річкових раків із водойм басейну р. Прип'ять
Науковий вісник Східноєвропейського національного університету імені Лесі Українки: Серія: Біологічні науки, 2018 На основі проведених досліджень алозимної мінливості доведено наявність у водоймах басейну річки Прип’ять трьох видів річкових раків: A. astacus, A. angulosus та A. leptodactylus. Установлено, що вид A.
Vitaliy Kostyuk +2 more
doaj +1 more source
Contributions to the assessment of Astacus leptodactylus Eschscholtz, 1823 stocks from the Razim-Sinoie lagoonary area (Danube Delta Biosphere Reserve, Romania) [PDF]
Scientific Annals of the Danube Delta Institute, 2013 In August 24th- August 30th, 2012 period there was performed a pilot study to assess the Slender clawded or Turkish crayfish (Astacus leptodactylus Eschscholtz, 1823) populations from Golovița Lake and the southern part of the Razim Lake (both of them ...
TÖRÖK Zsolt Csaba
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Welfare of Decapod Crustaceans with Special Emphasis on Stress Physiology
Aquaculture Research, Volume 2023, Issue 1, 2023., 2023 Despite the growing concern on animal welfare in crustacean farming, both from legislative bodies as well as the common public, studies on welfare are limited and transfer to routine farming is missing. While biocertification schemes such as the Aquaculture Stewardship Council (ASC) involve a welfare dimension, these dimensions cannot be communicated ...
Sven Wuertz +3 more
wiley +1 more source
Aquaculture Research, Volume 2023, Issue 1, 2023., 2023 A feeding experiment was conducted to study the effects of dietary lipid sources and L‐carnitine on the growth performance, body component, muscle fatty acid composition, and antioxidant enzyme ability of average weight of 0.28 g dog conch larvae, Laevistrombus canarium.
Jen-Hong Chu, Femi Fawole
wiley +1 more source
Acta Chimica Slovenica, 2021 Thiamethoxam (Thmx) is a globally used neonicotinoid pesticide contaminated in freshwater ecosystems with residues detected in fishery products. Astacus leptodactylus is a popular freshwater crustacean that is cultivated and exported in many countries ...
Miraç Uçkun +3 more
doaj +1 more source
Better Alone Than in Bad Company: Trophic Ecology of Co-Occurring Invasive and Native Crayfish. [PDF]
Ecol EvolThis study investigated and compared trophic interactions between invasive signal crayfish and native white‐clawed crayfish at sites of co‐occurrence and in allopatry. The presence of crayfish plague, body condition, and trophic niche traits were explored as possible factors that make invasive signal crayfish a strong competitor, enhancing its ...
Ghia D +8 more
europepmc +2 more sources