Spatio-temporal patterns in the abundance and population structure of a large temperate reef fish

Abstract

This study describes the patterns of size and sex distribution of Cheilodactylus spectabilis on the rocky reefs of northeastern New Zealand, over a range of spatial and temporal scales. Moreover, it examines how size and sex might influence our perception of how the fish is distributed, and its effect on the local environment. Data spanning a 10 yr period between 1978 and 1988 is presented for a range of reef habitats, and density and size trends are examined. Such long-term information is important if conclusions are to be made regarding the processes affecting the distribution of the population and the potential effects of the population on its environment