maxima predominantly occurs in depths <40 m, with no evidence that extensive populations extend into deep water in the region.ĭistribution patterns of organisms are regulated through a range of ecological processes, including dispersal and recruitment ( Marshall et al., 2010). Oysters occupied flat, sandy habitats with neighbouring benthic communities of filter feeders (>98% of observations). maxima to depths of 76 m, although more than 90% of individuals occurred shallower than 40 m and less than 2% were found deeper than 50 m. Multibeam sonar data was also coupled with towed video data to produce predictive statistical models of P. We quantified habitat characters including depth, substrate, and benthic community composition associated with pearl oyster distribution. maxima off Eighty Mile Beach, including data from 862 km 2 of multibeam survey and 119 towed video transects spanning an area from the 20 to 100 m contour lines. Image-based, and acoustic methods were used to elucidate distribution patterns of P. maxima, with oysters collected by divers to depths of ∼35 m, although there are anecdotal accounts of oysters beyond diving depths. Eighty Mile Beach, in tropical Western Australia, is the key harvest area for P. maxima underpins sustainable management of the fishery. The Western Australian fishery relies on wild-caught animals, and as such, knowledge of the status and distribution of P. The silver-lipped pearl oyster, Pinctada maxima, is the primary species used for the culture of pearls in the Indo-Pacific region. 3Centre for Marine Science and Technology, Curtin University, Bentley, WA, Australia.2School of Environment, Science and Engineering, Southern Cross University, Lismore, NSW, Australia.1Australian Institute of Marine Science, Indian Ocean Marine Research Centre, Crawley, WA, Australia.Steve Whalan 1,2, Marji Puotinen 1, Mary Wakeford 1, Iain Parnum 3 and Karen Miller 1*
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |