Development of a marine information system for cephalopod fisheries in Eastern Mediterranean
Abstract:An interfaced marine information system is developed for integrated analysis of fisheries of five commercially important cephalopod species in Greek waters of the Eastern Mediterranean. The system combines data on the spatial and temporal patterns of cephalopod population dynamics focusing on geo-distribution of abundance, environmental variation, fisheries, spawning areas and migration habits. The system is developed as a customisation of a workstation ARC/INFO environment and features a series of innovative GIS map-overlay and integration routines for analysis and modelling of surveyed, statistical, and remote-sensed data. Geo-referenced datasets include cephalopod catch and landings, coastline-bathymetry, bottom substrate types, and a set of environmental variables provided by satellite sensors (AVHRR/sea surface temperature and SeaWiFS/chlorophyll-a concentration) and climatologic datasets (sea surface salinity). The innovative aspect of this marine system is the integration of species life history data to GIS analysis. Species preferences on certain spawning conditions, migration habits, and depth ranges are used as constraints in GIS analysis and integration. The application of GIS and Remote Sensing technologies has proved useful for the mapping of seasonal spatial components of cephalopod population dynamics. Results from this application may be used for information-based species management proposals, which is the goal of further development of this marine information system.
Document Type: Research Article
Publication date: July 1, 2002
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