Search results for "fish fauna"

showing 3 items of 3 documents

The “Porţile de Fier/Iron Gates” Nature Park (Romania) Some Danube Northern Tributaries Fish Fauna

2014

Abstract The relative larger size of the Berzasca River, respectively the relatively constant environmental conditions, with relatively stenotopic ichthyocenosis, suffered small qualitative and quantitative fish fauna modifications in time, compared to the smaller rivers such as Sirinia, Liubcova/Oreviţa and Mraconia. The Danube “Iron Gates” I Lake influences the lower sectors of the studied rivers in term of fish species exchange. The accidental droughts in the karstic zones of the studied lotic sectors have a negative influence on the spatial continuity of the local fish fauna, and the climate change can increase these influence in the future. All the studied rivers play an important role…

0106 biological sciencesgeographygeography.geographical_feature_categoryRiver ecosystemberzascaEcology010604 marine biology & hydrobiologyFaunaClimate changefish fauna010501 environmental sciencesKarst01 natural sciencesliubcova and mraconia riversFisherysiriniaHabitatNature parkTributaryFish <Actinopterygii>QH540-549.50105 earth and related environmental sciencesTransylvanian Review of Systematical and Ecological Research
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“Porţile de Fier/Iron Gates” Gorges Area (Danube) Fish Fauna

2014

AbstractAn important fisheries sector of the Danube, the “Iron Gates” area, was studied by famous naturalists along the history like Marsigli, Haeckel, Kner, Antipa and Bănărescu. After more than half a century after the last main publication in this area, the “Iron Gates” Danube sector suffered significant human impact, and an assessment of the fish fauna was needed. The paper summarizes the trend of fish species along the XIX to XXIst centuries, and reveals the appearance of new species. The study includes data from about 65 fish species, belonging to: Acipenseridae, Polyodontidae, Clupeidae, Salmonidae, Esocidae, Cyprinidae, Cobitidae, Siluridae, Ictaluridae, Anguillidae, Lotidae, Gaster…

0106 biological scienceshuman impactEcology010604 marine biology & hydrobiologyFaunaEcology (disciplines)010501 environmental scienceshabitat changesfish fauna01 natural sciencesFisheryGeography13. Climate actiondanubeFish <Actinopterygii>14. Life underwaterQH540-549.50105 earth and related environmental sciencesTransylvanian Review of Systematical and Ecological Research
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Acquatina Lagoon: a model ecosystem to study community patterns

2013

Acquatina is a small lagoon ecosystem (0.45 km2) located on the Adriatic coast only 5 km north of Lecce (Italy). The lagoon has a freshwater input in the northern part and a connection with the sea at the south edge, being characterised by a latitudinal gradient of salinity and an internal patchiness of habitats. Here, we have used the lagoons as a model to study the influence of these sources of variation on the spatial distribution of macrobenthis and fish fauna, using both taxonomic and on taxonomic descriptors. Results showed a non random distribution of both species and functional traits of macroinvertebrate and fish fauna within the lagoon, despite the relatively small surface area. S…

Acquatina Lagoon habitat patchiness gradient of salinity functional traits macroinvertebrates fish fauna niche specialisation trophic energy partitioninglagoon macroinvertebrate fishspatial distribution
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