Cadmium and lead concentrations in Contracaecum rudolphii (Nematoda) and its host, the cormorant Phalacrocorax carbo (Aves)
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چکیده
منابع مشابه
Cadmium and lead concentrations in Contracaecum rudolphii (Nematoda) and its host, the cormorant Phalacrocorax carbo (Aves).
There are a variety of ways to assess the environmental impacts on parasites (Lafferty D. 1997: Parasitol. Today 13: 251-255). Recent studies on endoparasites of fish have revealed that several helminths (mainly acanthocephalans, and to a lesser degree tapeworms) from the intestine of their definitive hosts bioconcentrate heavy metals above the values detected in host tissues (review in Sures B...
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The present report is part of a larger study on the helminth fauna of Neotropical Cormorants, Phalacrocorax brasilianus (Gmelin, 1789) in Brazil, particularly, in the southernmost State of Rio Grande do Sul. The nematodes which were found loose in the proventriculus/ventriculus or in groups of adults of different ages and of L3 and L4 larval stages, forming eosinophylic granulomas had a prevale...
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Many aquatic birds use sounds extensively for in-air communication. Regardless of this, we know very little about their hearing abilities. The in-air audiogram of a male adult great cormorant (Phalacrocorax carbo) was determined using psychophysical methods (method of constants). Hearing thresholds were derived using pure tones of five different frequencies. The lowest threshold was at 2 kHz: 1...
متن کاملCapillariid nematodes (Nematoda: Capillariidae) parasitic in the common cormorant (Phalacrocorax carbo), with redescription of Baruscapillaria carbonis (Dubinin et Dubinina, 1940).
Two species of the genus Baruscapillaria Moravec, 1982 are known to parasitise the small intestine of the common cormorant, Phalacrocorax carbo (L.): Baruscapillaria carbonis (Dubinin et Dubinina, 1940) and B. rudolphii Moravec, Scholz et Nasincová, 1994. A redescription of the former species, based on specimens collected from common cormorants shot in South Bohemia, Czech Republic, is provided...
متن کاملExperimental studies on the development of Contracaecum rudolphii (Nematoda: Anisakidae) in copepod and fish paratenic hosts.
The larval development of the nematode Contracaecum rudolphii (Rudolphi, 1819), a common parasite of the proventriculus of cormorants, was experimentally studied. Within the eggs cultivated in freshwater under laboratory temperatures of 20-22 degrees C, the developing larva undergoes two moults on days 4-5, attaining the third larval stage. Most of the ensheathed third-stage larvae, 291-457 mic...
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ژورنال
عنوان ژورنال: Folia Parasitologica
سال: 2001
ISSN: 0015-5683,1803-6465
DOI: 10.14411/fp.2001.012