Results 51 to 60 of about 3,606 (158)
Natural Biota’s Contribution to Cultured Aquatic Animals’ Growth in Aquaculture Cannot Be Ignored
The rapid expansion of the aquaculture industry is accompanied by high organic and nutrient loadings from formulated feeds. This leads to water deterioration and pathogenic microorganisms. Natural biota (e.g., bacteria, phytoplankton, zooplankton, and zoobenthos) in ponds form important parts of cultured aquatic animals’ diets.
Shiyu Jin +14 more
wiley +1 more source
Danube crayfish Pontastacus leptodactylus (Eschscholtz, 1823)
Dunavski (barski iii turski) rak, Pontastacus leptodactylus na globalnom nivou ima status najmanje zabrinjavajuće vrste (LC, Gherardi & Souty-Grosset, 2017) i većina populacija je relativno stabilna, iako je u prošlosti bilo značajnog opadanja brojnosti.
Đuretanović, Simona, Zorić, Katarina
core +5 more sources
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
Cytology, function and dynamics of stem and progenitor cells in decapod crustaceans
ABSTRACT Stem cells play key roles in development, tissue homeostasis, regeneration, ageing and diseases. Comprehensive reviews on stem cells are available for the determinately growing mammals and insects and some lower invertebrates like hydra but are rare for larger, indeterminately growing invertebrates that can live for many decades.
Günter Vogt
wiley +1 more source
Interest in feeding crayfish under culture conditions has increased in the last few years; however, there is still a lack of information on feeding crayfish according to their nutritional requirements (i.e., protein and amino acid dietary demands of ...
Ayşe Gül Harlıoğlu +3 more
doaj +1 more source
Abstract To maximise productivity, a better understanding of the underlying causes of subfertility that lead to inferior offspring and high mortality is imperative. In decapod crustaceans, most research has focused on female reproductive performance, with little attention given to male fertility.
Jon Irish Legaspi Aquino +3 more
wiley +1 more source
Abstract The redclaw crayfish (Cherax quadricarinatus; hereafter redclaw), native to northern Australia and southern New Guinea, is among the largest freshwater decapods. It matures early and is considered highly prolific as females may lay over one thousand eggs in a single clutch.
Phillip J. Haubrock +5 more
wiley +1 more source
Force and Boldness: Cumulative Assets of a Successful Crayfish Invader
Multiple causes can determine the disturbance of natural equilibrium in a population of a species, with a common one being the presence of invasive competitors.
Lucian Pârvulescu +10 more
doaj +1 more source
Slatkovodne ekosustave u Hrvatskoj nastanjuje sedam vrsta rakova. Cilj ovog istraživanja bio je usporediti mikrobiološku sliku rakova, a korištene su domaća vrsta Pontastacus leptodactylus i invazivna strana vrsta Pacifastacus leniusculus.
Straga, Ana
core +3 more sources
Fecundity of the narrow-clawed crayfish Pontastacus leptodactylus in the water bodies of Belarus
Pre-larvae hatching fecundity and ovarian fecundity of narrow-clawed crayfish populations were estimated in the lakes and reservoirs of Belarus. Statistically significant differences in the fecundity of females from various water bodies were noted only for Lake Kichino.
openaire +1 more source

