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DISTRIBUTION OF THE INVASIVE SPINY-CHEEK CRAYFISH (ORCONECTES LIMOSUS) IN THE CZECH REPUBLIC. PAST AND PRESENT
The American spiny-cheek crayfish, Orconectes limosus, was first introduced into European waters in 1890. The first literature record about the occurrence of O. limosus on the territory of the Czech
BIOMETRY AND DEMOGRAPHY OF THE INVASIVE CRAYFISH ORCONECTES LIMOSUS IN THE CZECH REPUBLIC
TLDR
No significant differences in the total body length of crayfish were found between running and standing water localities as a whole, or between marginal and residential populations from running waters, but there was a low but distinct difference in the body weight between cray fish from brooks and other waters.
These Squatters Are Not Innocent: The Evidence of Parasitism in Sponge-Inhabiting Shrimps
TLDR
It is demonstrated that sponge-inhabiting shrimps are often parasites adapted to consumption of sponge tissues, reflected in adaptations of mouth appendages, in the reproduction strategy, and in apparent sequestration of host pigments by shrimp.
Accumulation of Heavy Metals in Crayfish and Fish from Selected Czech Reservoirs
TLDR
The majority of evaluated metals were found in higher concentrations in crayfish: Cu > Al > Zn > Ni > Cr > Cd > Pb, with Hg being the only metal accumulating higher in fish.
Alteration of steroidogenesis in H295R cells by organic sediment contaminants and relationships to other endocrine disrupting effects.
TLDR
This pilot study provided the first experimental evidence of the wider application of the H295R bioassay for screening complex environmental samples, and the results support the hypothesis of chemical-induced endocrine disruption in intersexual crayfish.
Status and recovery of indigenous crayfish populations after recent crayfish plague outbreaks in the Czech Republic
TLDR
It is hypothesize that chronic A. astaci infections leading to disease outbreaks under specific conditions may occur in some populations of indigenous crayfish in the Czech Republic.
SOME CASES OF MACRO-EPIBIOSIS ON THE INVASIVE CRAYFISH ORCONECTES LIMOSUS IN THE CZECH REPUBLIC
Several cases of epibiosis by macro-invertebrates on Orconectes limosus were recorded during our research on the biology of populations of this invasive crayfish species in the Czech Republic. (1) In
New record of the parthenogenetic marbled crayfish Procambarus fallax f. virginalis from Italy
TLDR
This report provides the second record for the marbled crayfish in Italy and the identification of this species was confirmed by its external morphology and colour pattern, as well as by molecular analysis.
Multiple origins and strong phenotypic convergence in fish-cleaning palaemonid shrimp lineages.
TLDR
Five evolutionarily independent origins of fish cleaning symbioses within the family Palaemonidae are confirmed based on a phylogenetic analysis and the ancestral state reconstruction of 68 species, including 13 fish-cleaners from the genera Ancylomenes, Brachycarpus, PalAemon, Periclimenes, and Urocaridella.
Towards a revision of the genus Periclimenes: resurrection of Ancylocaris Schenkel, 1902, and designation of three new genera (Crustacea, Decapoda, Palaemonidae)
TLDR
The systematic position of several species of the polyphyletic genus Periclimenes is revised and the generic name Ancylocaris Schenkel, 1902 is re-established for the anemone-associated Peric Limenes brevicarpalis.
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