Results 91 to 100 of about 1,684 (171)
The authors describe the first case of parasitism on anuran amphibian, Rana temporaria, by the freshwater leech Helobdella stagnalis, in a mountainous area of northwestern Italy.
Rocco Tiberti, Augusto Gentilli
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Diversity of Aquatic Biota as Bioindicator for Water Quality of Ranu Pani and Ranu Regulo [PDF]
Changes in water conditions greatly affect the presence and ability of aquatic biota to survive in their habitat. The presence of these biota are largely determined by the physical and chemical conditions of water, so that the community structure of ...
Harianie, Liliek +2 more
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RIVPACS database documentation. Final report [PDF]
With the advent of the EU Water Framework Directive the concept of the 'reference condition' has become explicit within the legislative framework of the European Union.
Clarke, Ralph +6 more
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Macrobenthos of lower Zayandehrud River [PDF]
To study the macrobenthos of the lower reaches of Zayandehrud River, a distance of approximately 160 km, between Birds Garden and Varzaneh Town was investigated.
Eisa Ebrahimi +2 more
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Insects in the Killbuck Marsh Wildlife Area: 1993 Survey [PDF]
Author Institution: Ohio Agricultural Research and Development Center, Ohio State UniversityThe Killbuck Marsh Wildlife Area was the focus of a seven month survey performed in 1993 to determine the diversity of selected insects.
Ellis, M. S. +2 more
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Biological and toxicological investigations of Chicago area navigation projects [PDF]
unpublishednot peer ...
Dorkin, John +4 more
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An Investigation into the Diversity of Leeches (Hirudinida) in the Baltic States
The Baltic states—Estonia, Latvia, and Lithuania—are situated on the eastern coast of the Baltic Sea between Russia and the Scandinavian countries. This region is characterized by diverse landscapes and numerous bodies of water, including lakes, peat ...
Jurgita Rutkauskaite-Suciliene +2 more
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Il Lago della Ninfa (Appennino modenese): comunit\ue0 macrozoobentonica, fauna vertebrata e considerazioni ecologiche [PDF]
The biocoenoses of Lake Ninfa in the Northern Apennines (Province of Modena, Italy) have undergone heavy tampering since 1961 when this small impoundment was completely emptied in order to allow the dredging of the lake bottom. Consequently, the original
Ansaloni, Ivano +5 more
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Sanguijuelas de las dos especies Helobdella duplicata y H. triserialis (ambas Glossiphonidae) parasitan al camarón de río Cryphiops caementarius en río Limarí, Chile. El 47 % de los camarones estaba parasitado por una o ambas especies de hirudíneos.
Patricio Tello +2 more
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Glossiphoniidae is a family of freshwater leeches, notable for their unique behaviour of parental care. After hatching, juveniles remain on the ventral side of their parent, where they receive protection and grow until they are ready to depart from the ...
Poramad Trivalairat +3 more
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