engleski

Coastal monitoring networks of cabled video- observatories and stand-alone Cameras

The Mediterranean Sea displays high species diversity and represents a key area for study of the impacts of natural and anthropogenic changes on biodiversity and its consequences on ecosystem. Habitat destruction, over-fishing, contaminants, eutrophication, introduction of alien species, and climate changes are causing increasingly evident changes in community structure and biodiversity of this warm and miniaturized ocean. Yet, Mediterranean fish biodiversity is undergoing rapid changes due to the rise of water temperature and the increasing success of thermophile biota. In this context, the analysis of continuous long-term and multiparametric data offers a new and promising opportunity to ecologists to understand those processes which regulate marine biodiversity and may also contribute to define possible strategies of conservation and ecosystem-based management. Coastal-cabled video observatories such as the Observatory of the Sea (OBSEA ; www.obsea.es) off Vilanova i la Gertrù (Spain) have been indicated as innovative andchallenging technological tools for monitoring fish assemblages in marine systems. In addition, these devices can be successfully employed to monitor and help to understand the responses of fish species to both, environmental drivers and human stressors, as also invoked by the EU Marine Strategy Framework Directive. These multiparametric intelligent platforms represent one of the key elements for Blue Growth development policies. Cabled, fixed and permanent observatories are being worldwide-distributed within growing geographic networks. They provide long-term monitoring of several characteristics (oceanographic, biological etc.) of the seabed and water column at various depths, in a synchronous and highly integrated fashion. Here, we describe how are the video monitoring actions introduced and applied at the OBSEA within the framework of RESBIO Spanish National Project and the resulting experience transferred to a cabled video station in Šibenik, Croatia.

Coastal ; monitoring ; networks ; video-observatories

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