00000nam##2200000za#4500 9.614883 CaOODSP 20200327134557 ta 150406|1999||||xxc||||| f|0| 0 eng|d 0706-6457 CaOODSP eng n-cn--- Fs97-6/2268E Canada. Department of Fisheries and Oceans. A preliminary assessment of risks for the ballast water-mediated introduction of nonindigenous marine organisms in the Estuary and Gulf of St. Lawrence / by Michel Harvey et al. Mont-Joli - Quebec : Fisheries and Oceans Canada 1999. x, 56p. : maps, references, tables ; 28 cm. Canadian technical report of fisheries and aquatic sciences 0706-6457 2268 "Risks for the introduction of nonindigenous marine species into the Estuary and Gulf of St. Lawrence (EGSL) by foreign commercial shipping activities were evaluated by conducting three different surveys to characterize 1) the vessel traffic of foreign origin in the EGSL, 2) ballasting operations of foreign vessels entering ports of the EGSL, and 3) the biodiversity and species richness of protistan and meta-zoan taxa found in ballast water and sediment of incoming foreign vessels."--Page ix. Prepared at the Regional Oceans Branch, Maurice Lamontagne Institute, P.O. Box 1000, 850 route de la Mer, Mont-Joli (Québec) G5H 3Z4. Risks for the introduction of nonindigenous marine species into the Estuary and Gulf of St. Lawrence (EGSL) by foreign commercial shipping activities were evaluated by conducting three different surveys to characterize 1) the vessel traffic of foreign origin in the EGSL, 2) ballasting operations of foreign vessels entering ports of the EGSL, and 3) the biodiversity and species richness of protistan and meta-zoan taxa found in ballast water and sediment of incoming foreign vessels.--Page ix Résumé en français Softcover 99-29 1999-07-23 Biological diversity gcpds Fish gcpds Harvey, Michel A preliminary assessment of risks for the ballast water-mediated introduction of nonindigenous marine organisms in the Estuary and Gulf of St. Lawrence / (CaOODSP)9.574015 Canadian technical report of fisheries and aquatic sciences, 0706-6457 2268 (CaOODSP)9.514691