Host-parasite interface between Asellus aquaticus (Isopoda) and larvae of Acanthocephalus anguillae (Acanthocephala)

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Host-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...

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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...

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Phylogeography 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...

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Reduced 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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Amphipod intermediate host of Polymorphus minutus (Acanthocephala), parasite of water birds, with notes on ultrastructure of host-parasite interface

From November 1997 to June 1998, 3,118 specimens of Echinogammarus stammeri (Karaman, 1931) (Amphipoda) were collected from the River Brenta (Northern Italy) and examined for larval helminths. Larvae of Polymorphus minutus (Goeze, 1782) singly infected the hemocoel of 23 (0.74%) crustaceans; all these larvae were cystacanth stages. This is the first record of Polymorphus minutus in E. stammeri....

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ژورنال

عنوان ژورنال: Folia Parasitologica

سال: 2000

ISSN: 0015-5683,1803-6465

DOI: 10.14411/fp.2000.030