alexa Cumulative Impact Assessment As A Key Conservation Planning Tool: An Application On Posidonia Oceanica Meadows In Greek Waters Of The Aegean Sea
ISSN: 2157-7625

Journal of Ecosystem & Ecography
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6th International Conference on Biodiversity and Conservation
April 27-28, 2017 Dubai, UAE

Vassiliki Vassilopoulou
Hellenic Centre for Marine Research, Greece
Keynote: J Ecosyst Ecogr
DOI: 10.4172/2157-7625-C1-025
Cumulative impact assessment is a computational tool for quantifying and visualizing the consequences of a combination of pressures caused by human activities on ecosystem components. It is a fundamental process in Conservation Planning and Marine Spatial Planning efforts based on an Ecosystem-Based Approach. For assessing the sum of impacts on ecosystem components, a well-developed approach that takes into consideration the presence/absence grid data of human activities and ecosystem components has been used. This approach requires a thorough knowledge of human activities (intensity, location) and ecosystem components (i.e. vulnerability, resilience) to assess their collective impacts. In this study, a key ecosystem component for the Mediterranean, the Posidonia oceanica meadows, has been selected aiming to identify areas where the status of this priority habitat is threatened and hence deserve the attention of the management authorities. As a first step, geospatial data of human activities and existing management measures were collected and processed. An impact score representing the per-pixel (1 km*1 km cell) average of Posidonia oceanica meadows vulnerability-weighted stressor intensities was calculated and mapped. According to the impact score, the total pressure on this ecosystem component was very low (79.8%) in the vast majority of the area where Posidonia oceanica extends (Figure 1). However, certain locations where the exerted pressures on sea grasses seemed to be rather high were identified in the sea regions of Chalkidiki, Attica, Southern Aegean Sea and Crete. These pressures appeared to be mainly connected to drivers such as small scale fishing, urbanization, ports and agricultural run-off. The latter suggest that aside from truly marine activities (e.g. small scale fishing), the importance of land sea interactions is also crucial for determining the status of coastal ecosystems.

Vassiliki Vassilopoulou (PhD) is a Research Director at Hellenic Centre for Marine Research, Greece. She is involved in research activities in the field of ecosystembased fisheries management. Since 2009, she has been engaged in Maritime Spatial Planning research issues through her involvement in several EU projects. In the last years, she is also working on issues related to the development of a more efficient interface between policy needs and scientific advice through interaction with key stakeholders. She has acted as chairperson or moderator, and/or was an invited speaker, in sessions dedicated to topics of her expertise in international conferences and workshops, and has been giving pertinent postgraduate lectures in the Universities of Athens and Thessaloniki. She is member of International Scientific Committees and has recently joined the Commission on Ecosystem Management (CEM) of the IUCN. She has more than 150 publications and presentations in international scientific journals and conferences.

Email: [email protected]

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