Kernel Density Surface Modelling as a Means to Identify Significant Concentrations of Vulnerable Marine Ecosystem Indicators
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AuthorsKenchington, E. (Ellen); Murillo, F.J. (Francisco Javier); Lirette, C. (Camille); Sacau-Cuadrado, M.M. (María del Mar); Koen-Alonso, M. (Mariano); Kenny, A. (Andrew); Ollerhead, N. (Neil); Wareham, V. (Vonda); Beazley, L. (Lindsay)
Editor/sThrush, S. (Simon)
Kernel Density Surface
The United Nations General Assembly Resolution 61/105, concerning sustainable fisheries in the marine ecosystem, calls for the protection of vulnerable marine ecosystems (VME) from destructive fishing practices. Subsequently, the Food and Agriculture Organization (FAO) produced guidelines for identification of VME indicator species/taxa to assist in the implementation of the resolution, but recommended the development of case-specific operational definitions for their application. We applied kernel density estimation (KDE) to research vessel trawl survey data from inside the fishing footprint of the Northwest Atlantic Fisheries Organization (NAFO) Regulatory Area in the high seas of the northwest Atlantic to create biomass density surfaces for four VME indicator taxa: large-sized sponges, sea pens, small and large gorgonian corals. These VME indicator taxa were identified previously by NAFO using the fragility, life history characteristics and structural complexity criteria presented ...
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