|
Buxton, CD and Semmens, JM and Forbes, E and Lyle, JM and Barrett, NS and Phelan, MJ, Spatial Management of Reef Fisheries and Ecosystems: Understanding the Importance of Movement, FRDC, 2004/002 (2010) [Contract Report]
AbstractIn the Northern Territory, the primary outcome was an improved understanding of the temporal and spatial dynamics of Protonibea diacanthus aggregations. Most importantly, the study demonstrated that the aggregations are likely to be separate adult populations. This has significant implications for stock assessment and management of the resource as such populations are likely to be highly vulnerable to localised depletion. In Tasmania, the primary outcome was an improved understanding of the temporal and spatial movement patterns of Cheilodactylus spectabilis and Latridopsis forsteri. C spectabilis only moved to depth during the spawning season, suggesting that the deep water stocks that fishers believe act as a refuge population are in fact temporary residents during the spawning season, and the fishery may in fact target a major component of the stock. The result of C. spectabilis being highly site attached and occupying very small core areas of reef suggests that fishing has the potential to cause localised and serial depletion of this species. Despite being a mobile species, some L. forsteri individuals were site attached, suggesting that closed areas may be of some benefit for the sustainable management of this species.
Repository Staff Only: item control page |
