FN Archimer Export Format
PT J
TI Transfers of bryozoan species between the Atlantic Ocean and the Mediterranean Sea via the Strait of Gibraltar
BT 
AF HARMELIN, JG
   DHONDT, JL
AS 1:2;2:1;
FF 1:;2:;
C1 MUSEUM NATL HIST NAT,BIOL INVERTEBRES MARINS & MALACOL LAB,CNRS,URA 699,F-75005 PARIS,FRANCE.
C2 MNHN, FRANCE
   UNIV AIX MARSEILLE, FRANCE
IF 0.662
TC 31
TU CNRS
   IRD
   UNIVERSITE AIX-MARSEILLE
   UNIVERSITE TOULON
UR https://archimer.ifremer.fr/doc/00094/20531/18212.pdf
LA English
DT Article
CR BALGIM
BO Cryos
DE ;MEDITERRANEAN SEA;GIBRALTAR AREA;BIOGEOGRAPHY;BATHYAL;BRYOZOA
AB The deep-water benthos (115-2100 m) was sampled in the Atlantic-Mediterranean exchange area (Balgim cruise, N.O. Cryos: lberian-Moroccan Gulf, Strait of Gibraltar, Alboran Sea). The species richness of the bryozoan fauna (146 spp.) showed a marked between-site variability. Peaks of species richness occurred on both sides and in the Strait of Gibraltar under various conditions of temperature and salinity. 'rhe common features of the corresponding sites were the abundance of suitable substrates and the presence of currents facilitating supply of food and propagules. In the Alboran Sea, the species richness decreased with depth more rapidly than in the Atlantic and the depth distribution of several deep-water species showed an upward shift. There is an eastward decrease in the stock of Atlantic species: 15 % of them are not found beyond the Strait sill and only 79 % of the remaining species extend to the whole Mediterranean. Several endemic Atlantic species or morphotypes can live in conditions of typical Mediterranean water (high temperature and salinity), but do not spread beyond the eastern limits of either the Gibraltar Strait or the Alboran Sea. These occurrences are hypothesized to be signatures of local increases of the trophic resources, which could mask the barrier effect of the Mediterranean oligotrophy. The organic sedimentation originating from the high-productivity area localized in the north-west of the Alboran Sea appears to create this distribution pattern.
PY 1993
SO Oceanologica Acta
SN 0399-1784
PU Gauthier-villars
VL 16
IS 1
UT A1993KZ01200007
BP 63
EP 72
ID 20531
ER

EF