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... Buy Instant Access ». Title Diseases caused by Crustacea. Authors Piasecki, W.;Avenant-Oldewage, A. Editors Eiras, JC;Segner, H.;Wahli, T.;Kapoor, BG Book Fish diseases, Volume 2 2008 pp. 1115-1200 ISBN 978-1-57808-528-6 Record Number... more
... Buy Instant Access ». Title Diseases caused by Crustacea. Authors Piasecki, W.;Avenant-Oldewage, A. Editors Eiras, JC;Segner, H.;Wahli, T.;Kapoor, BG Book Fish diseases, Volume 2 2008 pp. 1115-1200 ISBN 978-1-57808-528-6 Record Number 20093075927. Abstract. ...
A total of 136 fishes, representing 9 species (perch, Perca fluviatilis L.; pike, Esox lucius L.; European eel, Anguilla anguilla (L.); common bream, Abramis brama (L.); roach, Rutilus rutilus (L.); tench Tinca tinca (L.); European... more
A total of 136 fishes, representing 9 species (perch, Perca fluviatilis L.; pike, Esox lucius L.; European eel, Anguilla anguilla (L.); common bream, Abramis brama (L.); roach, Rutilus rutilus (L.); tench Tinca tinca (L.); European whitefish, Coregonus lavaretus (L.); vendace, Coregonus albula (L.); and zander, Sander lucioperca (L.)), from Lake Miedwie were studied within 1997-1999. The necropsies yielded 41 parasite species (taxa). The most diversified were parasite faunas of pike (19 parasite species) and perch (16 species). The parasites found represented 13 higher taxa: Monera, Fungi, Protista, Myxozoa, Monogenea, Cestoda, Digenea, Nematoda, Acanthocephala, Branchiura, Copepoda, Mollusca, and Acarina. The parasites affecting fishes of Lake Miedwie exhibited diversified host-specificity. The most fish species were infected by metacercariae of Diplostomum spp. (8 fish species) and Tylodelphys clavata (7). Three fish species harboured: Ichthyocotylurus platycephalus, Ergasilus sie...
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The reproductive system of female Caligus elongatus was studied to ascertain the nature of the reproductive tract and how eggs are produced. The system Consists of paired ovaries located in the cephalothorax and two long oviducts,... more
The reproductive system of female Caligus elongatus was studied to ascertain the nature of the reproductive tract and how eggs are produced. The system Consists of paired ovaries located in the cephalothorax and two long oviducts, containing growing oocytes, running into the genital segment. Sperm from the spermatophores are stored within the seminal receptacle in the female genital segment and join oocytes just before they are extruded into the egg sac. Paired "cement" glands produce a secretion which forms the eggsac and anchors the eggsac to the female.
One of the environmental factors affecting freshwater ecosystems is thermal pollution. The aim of the presented study was to determine whether the Dolna Odra Power Plant in north-western Poland is capable of altering the parasite fauna of... more
One of the environmental factors affecting freshwater ecosystems is thermal pollution. The aim of the presented study was to determine whether the Dolna Odra Power Plant in north-western Poland is capable of altering the parasite fauna of bream, Abramis brama. To compare the affected and non-affected fish we collected a total of 615 bream from three sites: the warm-water canal; river below the canal; and the river, above the power plant. The latter was treated as the ambient-temperature reference site. The waters in the discharge canal were by 6–10°C warmer than the waters from the reference site. The fish from the three sites yielded 21, 22, and 23 parasite species, respectively. Differences were observed in the prevalence of particular species as well as other specific parameters. For example copepod Ergasilus sieboldi from the site below the warm-water canal was three times more prevalent than in the canal itself. A similar trend was observed for monogenean Diplozoon paradoxum sh...
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Research Interests: Zoology, Principal Component Analysis, Fish Diseases, Copepoda, Discriminant Analysis, and 12 moreFemale, Animals, Classification, Polymerase Chain Reaction, Fisheries Sciences, Sodium Dodecyl Sulfate-Polyacrylamide Gel Electrophoresis, Perca Fluviatilis, Gills, Veterinary Sciences, Species Specificity, Perch, and Statistics as Topic
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ABSTRACT The frontal filament of larval and adult Caligus elongatus was examined using light and electron microscopy. No trace of a frontal filament was evident in eggs, nauplii, or young copepodids. The structure develops in older... more
ABSTRACT The frontal filament of larval and adult Caligus elongatus was examined using light and electron microscopy. No trace of a frontal filament was evident in eggs, nauplii, or young copepodids. The structure develops in older copepodids in a cuticular pocket in the cephalothorax. Upon infecting a fish, the filament extrudes and attaches permanently to the host. The subsequent chalimus stages inherit the filament. Before moulting, the "frontal organ" produces an extension lobe, which is attached to the old filament by each subsequent chalimus stage during the moult. The structure of the frontal filament is described and illustrated, as well as some details of the frontal organ. Some new terms are proposed for the elements of the filament and the organ. The suggestion is made that the life cycle of C. elongatus includes five, not four, chalimus stages.
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Research Interests: Zoology and Life Cycle
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2016. Pescatourism—A European review and perspective. Acta Ichthyol. Piscat. 46 (4): 325–350. Abstract. Pescatourism is a relatively new concept of merging tourism with fi sheries. Its intention is to supplement incomes of fi shermen and... more
2016. Pescatourism—A European review and perspective. Acta Ichthyol. Piscat. 46 (4): 325–350. Abstract. Pescatourism is a relatively new concept of merging tourism with fi sheries. Its intention is to supplement incomes of fi shermen and their families in the situation of declining living resources of the sea and to provide an attractive activity for tourists visiting the sea coast. Pescatourism should be considered different activity from fi sheries tourism, or recreational fi shing (including charter fi shing), which usually denote angling. It also contributes to the education of the society and public awareness about the state and problems of the marine sector, including ecosystems, and experiencing the traditional fi shing culture. This new activity fi rst stared in Italy in 1982 and soon spread to other Mediterranean countries. Pescatourism can be considered a branch of sustainable tourism and an activity parallel to agrotourism. This essay provides an overview of pescatourism (and related activities) in European countries (Italy, France, Spain, Portugal, Greece, Cyprus, Germany) with additional examples from elsewhere. Chances for implementing pescatourism in other countries are analysed (Turkey, Algeria, Poland). Despite all these positive features, it can easily be a commercial activity which does not provide any benefi ts to fi shers and sustainability of marine living resources if the licence right is given to charter operators rather than to fi shers.