1 Content / Table des matières Fig. 1 Location of sections and fixed stations. Position des transects et des stations fixes. Le Bulletin annuel du PMZA publie des articles en anglais, français ou bilingues afin de fournir aux océanographes et aux chercheurs des pêches, aux gestionnaires de l’habitat et de l’environnement, ainsi qu’au public en général les plus récentes informations concernant le Programme de Monitorage de la Zone Atlantique (PMZA). Le bulletin présente une revue annuelle des conditions océanographiques générales pour la région nord-ouest de l’Atlantique, incluant le golfe du Saint-Laurent, ainsi que de l’information reliée au PMZA concernant des événements particuliers, des études ou des activités qui ont eu lieu au cours de l’année précédente. The AZMP annual Bulletin publishes English, French, and bilin- gual articles to provide oceanographers and fisheries scientists, habi- tat and environment managers, and the general public with the lat- est information concerning the Atlantic Zone Monitoring Program (AZMP). The Bulletin presents an annual review of the general oceanographic conditions in the Northwest Atlantic region, includ- ing the Gulf of St. Lawrence, as well as AZMP-related information concerning particular events, studies, or activities that took place during the previous year. Edited by / Édité par Jean-Claude Therriault 1 , Brian Petrie 2 et Laure Devine 1 1 Institut Maurice-Lamontagne 850 route de la Mer, Mont-Joli, QC, G5H 3Z4 2 Bedford Institute of Oceanography Box 1006, Dartmouth, NS, B2Y 4A2 therriaultjcsci@dfo-mpo.gc.ca The Atlantic Zone Monitoring Program / Le Programme de Monitorage de la Zone Atlantique .................... p.2 AZMP Personnel / Personnel du PMZA .................... p.2 Environmental Review / Revue environnementale ..... p.3 Publications ................................................... p.8 The Relationship Between Scientific Understanding and the Length of Time Series: The CPR Example ......... p.9 BioChem: A National Archive for Marine Biology and Chemistry Data ......................................... p.11 The Annual Cycle of Sea-Surface Temperature and Spatial Scales of Its Anomalies in Canadian Atlantic Waters .. p.13 Station 27 Oceanographic Monitoring Station— A Long History ............................................... p.18 Exceptional Environmental Conditions in 1999 in Eastern Canadian Waters and the Possible Consequences for Some Fish and invertabrate Stocks .............................. p.21 State of the Ecosystem Report for the Eastern Scotian Shelf ........................................................... p.27 Coccolithophorid Bloom off the South Coast of Newfoundland ............................................... p.30 Interannual Changes in the Hydrography of the Labrador Sea: 1990-2002 ............................. p.33 Toward Prediction of the Ecosystem: 3D Simulations of the Coupled Biological Production and Hydrodynamics in the Estuary and Gulf of St. Lawrence ............... p.37 Oceanographic Buoy Network in the Gulf of St. Lawrence ............................................. p.42 The AZMP Program Contributes to the Scientific Investigation of the Smith Sound Mass Fish Kill of April 2003 ........................................................... p.45