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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
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Rapido trawling in the northern Adriatic Sea: effects on benthic communities in an experimental area
Pranovi, F.; Raicevich, S.; Franceschini, G.; Farrace, M.G.; Giovanardi, O. (2000). Rapido trawling in the northern Adriatic Sea: effects on benthic communities in an experimental area. ICES J. Mar. Sci./J. Cons. int. Explor. Mer 57: 517-524
In: ICES Journal of Marine Science. Academic Press: London. ISSN 1054-3139; e-ISSN 1095-9289, meer
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| Beschikbaar in | Auteurs |
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Documenttype: Congresbijdrage
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| Auteurs | | Top |
- Pranovi, F., meer
- Raicevich, S.
- Franceschini, G.
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- Farrace, M.G.
- Giovanardi, O.
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| Abstract |
The rapido is a towed gear used only in the Adriatic Sea for fishing scallops in sandy offshore areas and flatfish in muddy inshore areas. The gear is expected to have a high impact on the entire benthic community, mainly on epifauna and organisms living in the upper sediment layers. To obtain information on likely medium- to long-term effects of trawl fishing in the northern Adriatic Sea, an experiment on immediate short- term effects was carried out in an undisturbed sandy area near a wreck. The rapido produced flat tracks on the bottom that were still clearly visible after a week by means of sidescan sonar. The trawl did not change the sediment grain size, although it did disturb the upper 6 cm of sediment. Experimental trawling induced a modification in the macrobenthic community that was most evident immediately after the haul. Changes to the meiobenthic community were probably due to sediment disturbance and were recorded after 1 week. Comparison between an undisturbed control area and a neighbouring commercially exploited area allowed some evaluation of long-term changes in the benthic community. |
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