FN Archimer Export Format PT J TI Factors determining the distribution of foraminiferal assemblages in Port Joinville Harbor (Ile d'Yeu, France): the influence of pollution BT AF DEBENAY, Jean-Pierre TSAKIRIDIS, Erica SOULARD, René GROSSEL, Hubert AS 1:;2:;3:;4:; FF 1:;2:;3:;4:PDG-DEL-PC; C1 Univ Angers, Dept Geol, UPRES EA 2644, F-49045 Angers, France. LEBIM, Ker Chalon, F-85350 Ile Dyeu, France. CQEL, DDE de la Vendee, Serv Maritime, F-85100 Les Sables Olonne, France. IFREMER, F-44311 Nantes, France. C2 UNIV ANGERS, FRANCE LEBIM, FRANCE CQEL, FRANCE IFREMER, FRANCE SI NANTES SE PDG-DEL-PC IN WOS Ifremer jusqu'en 2018 copubli-univ-france IF 1.279 TC 158 UR https://archimer.ifremer.fr/doc/2001/publication-764.pdf LA English DT Article DE ;France;Atlantic;Harbor;Pollution;Bioindicators;Foraminifera AB Port Joinville harbor is located on an island. Thus, it receives only a few freshwater inputs, contrary to most of the areas where the influence of pollution on foraminiferal assemblages has been studied. The pollution in the harbor mainly results from the boats, including cleaning, painting and outfall of oil and motor-fuel.A total of 59 sediment samples was collected at three sampling periods (November-December 1997, May 1998 and September 1998). These samplings were supplemented by the study of algal flora and macrobenthos and by the study of water circulation by means of six stations where water was collected every hour during a tide cycle. Contaminants were analyzed in the last series of 17 samples. Total assemblages were used for this study. This choice is explained and discussed.This study shows that the main factor that determines the distribution of foraminiferal species in Port Joinville harbor is the geographical position. The correlation that occurs between heavy metals and the silt and clay fraction makes it difficult to determine whether sediment characteristics or pollution have the stronger influence on foraminiferal assemblages, except in areas heavily affected by pollution. Polluted sediments, near the careening areas, are indicated by the tolerant pioneer species Cribroelphidium excavatum and Haynesina germanica. The growth of epiphytic species depends on the presence of algae and their distribution may be favored by local conditions such as the constant immersion of the supports in the wet dock. PY 2001 PD SEP SO Marine Micropaleontology SN 0377-8398 PU Elsevier VL 43 IS 1-2 UT 000171413100004 BP 75 EP 118 DI 10.1016/S0377-8398(01)00023-8 ID 764 ER EF