Hidden secrets of the Northern Adriatic: 'Tegnúe', peculiar reefs
| Autor: | Luciano Masiero, Sandra Casellato, Stefano Soresi, Elena Sichirollo |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
Outcrop
QH301-705.5 Fishing Biodiversity biodiversity oasis Biology adriatic sea General Biochemistry Genetics and Molecular Biology reefs zoobenthos Marine ecosystem Rocky outcrops Biology (General) Lagoon of Venice Reef Seabed Trophic level Invertebrate geography geography.geographical_feature_category General Immunology and Microbiology Ecology General Neuroscience Oceanography General Agricultural and Biological Sciences |
| Zdroj: | Open Life Sciences, Vol 2, Iss 1, Pp 122-136 (2007) |
| ISSN: | 2391-5412 |
| Popis: | Research carried out over the last 40 years has underlined the scientific importance of the rocky outcrops scattered on the Northern Adriatic Sea bed sometimes referred to as “tegnúe”. The zoobenthic biocenoses developing over these peculiar geological formations are as extraordinary as they are unique. A study carried out for an entire year in two sampling stations, at different distances from the coast, revealed a very high number of zoobenthic species, including those which have now become rare and are therefore protected in Italian seas. The water turbidity of the northern Adriatic Sea greatly reduces the quantity of light reaching these outcrops, limiting the activity of autotrophic organisms only to sciaphilous genera. Thus, the most represented trophic categories of zoobenthos are suspension, especially filter feeders. Biodiversity values calculated for the communities of these particular reefs are far higher than normally found in the soft seabed in nearby areas, but even higher than in other coralligenous outcrops in other marine ecosystem in the world. The ecological role played by the tegnúe in the Northern Adriatic is extraordinary because as well as being true oases of biodiversity, they are areas naturally protected against bottom trawl-fishing. Thus, they offer shelter and reproduction sites for a number of fish and invertebrate species, including some under stress due to severe fishing pressure. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|