By J.H.S. Blaxter, A.J. Southward (Eds.)
Advances in Marine Biology comprises up to date studies of all parts of marine technological know-how, together with fisheries technology and macro/micro fauna. every one quantity includes peer-reviewed papers detailing the ecology of marine areas. Key positive factors * up to date studies on marine biology * specific specialize in plankton, fisheries, and crustacea
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Extra info for Advances in Marine Biology, Vol. 30
The observed trend, however, is opposite to the increase in surface productivity. , 1991). , 1983; Gooday, 1988). A similar south to north trend is found for the 10W3000m areas (Figure 14): densities were lowest on the Great Meteor seamount and off Morocco (areas 21 and 25), where the surface productivity varies between 45 and 90 g C m-’ year-’. They were somewhat higher off Gibraltar, the 36 M. VINCX ET AL. z zwo z. +......................... +........ t;.... it; ................. -- 0 + s ++ t +- .........................
Sediment grain size is generally regarded as one of the most important factors controlling meiobenthic composition (Coull, 1988). Coarser sediments generally support a more diverse fauna with reduced nematode dominance, as at area 5. Area 5 is also, by far, the shallowest of all the deep-sea areas considered. With the exception of the distinctiveness of area 5 there appear to be no other obvious trends in the data. g. limited replication, variations in sample collection and processing techniques).
In the present study area, however, distance off-shore can be expected to correlate with both depth and surface primary production. Multivariate ordination (MDS, arcsine transformation, Bray-Curtis similarity) of the percentage composition data yields few obvious trends (Figures 22 and 23). The distribution of sampling stations in ordination space shows no correlation with depth, surface primary production, or distance off-shore. Although the multivariate analysis of percentage composition did not reveal any general trend in the data, there is nevertheless a quite 42 M.