Quantification and representation of potential spatial interactions in the southern Benguela ecosystem

摘要: This work explores the potential spatial interactions between 13 key commercial species of southern Benguela ecosystem: sardine Sardinops sagax, anchovy Engraulis encrasicolus, round herring Etrumeus whiteheadi, horse mackerel Trachurus trachurus capensis, chub Scomber japonicus, chokka squid Loligo vulgaris reynaudii, kingklip Genypterus Cape hake Merluccius spp., silver kob Argyrosomus inodorus, snoek Thyrsites atun, albacore Thunnus alalunga, bigeye tuna obesus and yellowfin albacares. It is based on distribution maps per after combining available research databases. The resulting 78 pairs are quantified using three indices: overlap in area, biomass weighted kappa index. From additional information diet different trophic models, main (predation or competition) were identified mapped. results discussed with regard to method...