![]() ![]() Multivariate analyses show two clear temporal changes in assemblages, first in the early 1990s and second in the mid-2000s, although the latter change may be confounded by a concurrent change in survey trawl gear. ![]() There are also geographic differences in fish assemblage from north to south. Fish assemblages are clearly influenced by depth, with a distinct change in the region of the shelf break between 300 m and 400 m. ![]() Differences in spatial (latitude and depth) and temporal (seasonal and annual) factors were examined using multivariate analyses. Research survey data collected over 24 years (1986–2009) were used to explore long-term changes in demersal fish assemblages on the west coast of South Africa. ![]()
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