Results 11 to 20 of about 1,118 (199)

Habitat Complexity Reduces the Feeding Strength of Freshwater Predators [PDF]

open access: yesEcology and Evolution
The physical structure of an environment potentially influences feeding interactions among organisms, for instance, by providing refuge for prey. We examined how habitat complexity affects the functional feeding response of an ambush predator (damselfly ...
Mireia Aranbarri   +5 more
doaj   +3 more sources

Experience in controlling Asellus aquaticus in water distribution systems

open access: yesWater Science and Technology: Water Supply, 2001
Asellus aquaticus is one of the nuisance organisms found in water distribution systems. Case studies of operations aimed at control of this crustacean and its disinfestation, carried out in two water distribution networks: in Pevensey Bay (Eastbourne, UK) and in Gdansk (Poland), are presented.
J. Chapman   +2 more
exaly   +3 more sources

Telomeric sequences of Asellus aquaticus (Crust. Isop.) [PDF]

open access: yesHeredity, 1994
The repeated sequence TTAGGG is present at all tested vertebrate telomeres including those of humans and at the telomeres of evolutionarily very distant organisms such as trypanosomes and slime moulds. We tested for the presence of this sequence in the genome of the crustacean isopod Asellus aquaticus.
Pelliccia, F   +5 more
openaire   +4 more sources

GATA repeats in the genome of Asellus aquaticus (Crustacea, Isopoda)

open access: yesChromosoma, 1991
A 500 bp fragment of Drosophila genomic DNA containing 37 copies of the tetranucleotide GATA was used to probe, by Southern DNA blotting and in situ hybridization, two natural populations of the isopod crustacean Asellus aquaticus collected from the Sarno and Tiber rivers. This species does not have a recognizable sex chromosome pair.
PELLICCIA, Franca   +4 more
openaire   +4 more sources

Transcriptomic analysis of cave, surface, and hybrid samples of the isopod Asellus aquaticus and identification of chromosomal location of candidate genes for cave phenotype evolution [PDF]

open access: yesEvoDevo, 2023
Background Transcriptomic methods can be used to elucidate genes and pathways responsible for phenotypic differences between populations. Asellus aquaticus is a freshwater isopod crustacean with surface- and cave-dwelling ecomorphs that differ greatly in
Haeli J. Lomheim   +6 more
doaj   +2 more sources

The Invasive Round Goby Neogobius melanostomus as a Potential Threat to Native Crayfish Populations [PDF]

open access: yesAnimals, 2021
Despite the spread of round goby Neogobius melanostomus into freshwater streams, there is a lack of information with respect to its effect on macroinvertebrate communities, especially crustaceans. We studied foraging efficiency of N.
Pavel Franta   +5 more
doaj   +2 more sources

Potential effects of acanthocephalan and microsporidian parasites on the trophic status of the freshwater isopod Asellus aquaticus [PDF]

open access: yesParasite
Parasites are known for their ability to induce a variety of changes in their respective hosts, including morphological characteristics and trophic interactions. For many host-parasite relationships, however, these aspects are yet to be explored.
Doliwa Annemie   +5 more
doaj   +2 more sources

Strong Small‐Scale Differentiation but No Cryptic Species Within the Two Isopod Species Asellus aquaticus and Proasellus coxalis in a Restored Urban River System (Emscher, Germany) [PDF]

open access: yesEcology and Evolution
Worldwide, humans have strongly altered river networks. Key changes resulted in modified hydromorphology, poor habitat quality and availability, migration barriers, and pollution.
Martina Weiss   +3 more
doaj   +2 more sources

Importance of longevity, growth, and diapause in the evolution ofAsellus aquaticus

open access: yesBolletino di zoologia, 1991
Abstract In Asellus aquaticus it was shown that: (1) populations of South Europe have embryos/larvae resistant to 4 °C, a life span of 9 months, small body size, and lack of reproductive diapause; (2) populations of North Europe have a life span of 20 months, large body size, long reproductive diapause, and embryos/larvae not resistant to 4 °C; (3 ...
Vitagliano, Giovanna   +4 more
openaire   +2 more sources

Length-mass relationships of pond macroinvertebrates do not hold between Southern and Northern Europe [PDF]

open access: yesPeerJ
The lack of reliable data on length-mass relationships, essential to obtain accurate biomass estimates, limits our ability to easily assess secondary production by aquatic invertebrates.
Vladimíra Dekanová   +5 more
doaj   +3 more sources

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