|Recherches sur la zonation verticale du macrobenthos sessile dans la lagune de Venise|
Occhipinti-Ambrogi, A.; Nike Bianchi, C.; Morri, C.; Sconfietti, R. (1988). Recherches sur la zonation verticale du macrobenthos sessile dans la lagune de Venise. Cah. Biol. Mar. 29(3): 297-311
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723, more
Macrobenthos; Sessile species; Vertical distribution; Balanus perforatus Bruguière, 1789 [WoRMS]; Gracilaria confervoides (Linnaeus) Greville, 1830 [WoRMS]; Janua (Dexiospira) pagenstecheri (Quatrefages, 1866) [WoRMS]; Mytilus galloprovincialis Lamarck, 1819 [WoRMS]; Tubularia crocea (Agassiz, 1862) [WoRMS]; Ulva rigida C.Agardh, 1823 [WoRMS]; MED, Italy, Veneto, Venice Lagoon [Marine Regions]; Marine
|Authors|| || Top |
- Occhipinti-Ambrogi, A.
- Nike Bianchi, C.
- Morri, C.
- Sconfietti, R.
In Venice Lagoon the benthic zonation has been studied only in the intertidal zone. The vertical distribution of sessile macrobenthos was investigated from surface to bottom in two stations: one (S) characterized by some degree of wave action, a second one (N) located in still water. Samplings have been made by scuba diving at the depths of 0, -0.5, -1, -2, -3, -4, metres, scraping off 400 cm super(2) of the wooden piles that define the path of navigable canals inside the lagoon. In the deeper station, S, an additional sampling was made at -5 metres. In each sample all species collected were identified and the relative coverage was evaluated for each one. Data were submitted to multivariate statistical analysis. Thirty-eight species were recorded: five Algae and thirty-three animals. In the stations studied, the vertical zonation of the benthic sessile assemblages is likely to be mainly affected by wave action in the surface layer, while in the deepest levels the role of trophic conditions has to be taken into account