Box 912, Swakopmund, Namibia 4Faculty of Agriculture and Natural Resources, University of Namibia, Mandume Ndemufayo Avenue, Windhoek, Namibia 5 Instituto Nacional de Investigação Pesqueira, Ministério da Agricultura e Desenvolvimento Rural e Pescas, Angola, Ilha de Luanda, CP 2601 Luanda, Angola • Collaborators: Norway, Angola, Namibia, South Africa • Aims: Identifying and describing possible tre. [...] changes in distribution and range sizes of demersal species in BCLME • Are such shifts reflected in spatio-temporal changes of biodiversity hotspots? Namibia AAIIMSS 1. [...] Assessing the implications of potential future climate change effec ts for the spatio‐temporal variability of biodiversity hotspots SSTTUUDDYY A ARREEAA • The BCLME is one of four major eastern boundary coastal upwelling ecosystems of the world; supports important reservoir of biodiversity and biomass of zooplankton, fish, seabirds, marine mammals • Given the key situation of its southern exte. [...] stations – Namibia: 1990‐1999 (RV Dr Fridtjof Nansen), 1999‐2010 (Blue Sea II) : 4219 stations – South Africa: 1984‐2010 (RV Africana): 2528 stations • Angola and Namibia: bottom trawls at depths 20‐ Nam. [...] locations followed a pseudo‐random distribution based on a 5x5 min grid DDaattaa ccoolllleeccttiioonn aanndd aannaallyyssiiss • Used demersal fish data only – Most reliable data – The heterogeneous nature of fish distributions can make them relatively effective surrogates for other marine taxa including molluscs, echinoderms, crustaceans and higher predators • Catch rate for the study was d.
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