| Autor: |
Pranovi, F., Raicevich, S., Franceschini, G., Farrace, M. G., Giovanardi, O. |
| Předmět: |
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| Zdroj: |
ICES Journal of Marine Science / Journal du Conseil; Jun2000, Vol. 57 Issue 3, p517-524, 8p, 3 Diagrams, 3 Charts, 2 Graphs, 1 Map |
| Abstrakt: |
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. [ABSTRACT FROM PUBLISHER] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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