Bacterial endosymbionts in Asellus aquaticus (Isopoda) and Gammarus pulex (Amphipoda) and their contribution to digestion
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چکیده
منابع مشابه
Carotenoids and carotenoproteins in Asellus aquaticus L. (Crustacea: Isopoda).
Column (CC), thin-layer (TLC), high-performance liquid (HPLC) and ion-exchange chromatography (IEC), were used to investigate corotenoid and carotenoprotein complexes in Asellus aquaticus specimens from the Narew river. The following carotenoids were found: alpha-carotene, beta-carotene, beta-cryptoxanthin, lutein, zeaxanthin, diadinoxanthin, mutatoxanthin, crustaxanthin, echinenone, hydroxyech...
متن کاملThe influence of fresh water pollutants and interaction with Asellus aquaticus (L.) on the feeding activity of Gammarus pulex (L.).
The feeding response of juvenile amphipod Gammarus pulex (L.) was investigated following exposure to freshwater pollutants. The method employed is nondestructive, provides a rapid indication of the status of groups of individuals, and is based on a time-response analysis of the consumption of the eggs of Artemia salina and the determination of median feeding times or FT50s. The feeding activity...
متن کاملHost-parasite interface between Asellus aquaticus (Isopoda) and larvae of Acanthocephalus anguillae (Acanthocephala).
The present study describes the ultrastructure of the interface between naturally infected isopods, Asellus aquaticus (L.), from the River Brenta (northern Italy) and larvae of Acanthocephalus anguillae (Müller, 1780) Lühe, 1911. A fully developed larva of this helminth occupies the host’s hemocoel and induces displacement of its internal organs. A transparent acellular envelope ranging in thic...
متن کاملPhylogeography of subterranean and surface populations of water lice Asellus aquaticus (Crustacea: Isopoda).
The water louse Asellus aquaticus is a widespread, euryoecious species, mostly uniform throughout its range. However, six subspecies are known from the Dinaric karst in the northwestern Balkans. They include some specialized subterranean populations. The pattern of genetic variation among subterranean and surface populations in this hydrographically highly fragmented karst region was investigat...
متن کاملReduced survival associated with precopulatory mate guarding in male Asellus aquaticus (Isopoda)
Precopulatory mate-guarding in aquatic crustaceans is known to have immediate costs for the guarding male. The extent to which guarding behavior may reduce future reproductive opportunities, however, is less established. We examined the survival and antennae length, suggested to be important in detecting receptive females, in male freshwater isopods (Asellus aquaticus) collected paired or unpai...
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ژورنال
عنوان ژورنال: Limnology and Oceanography
سال: 2003
ISSN: 0024-3590
DOI: 10.4319/lo.2003.48.6.2208