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Regional Diversity and Biogeography of Coastal Fishes on the West Coast South Island of New Zealand
Clive Roberts
出版
Department of Conservation
, 2005
主題
Nature / Animals / Fish
Science / Earth Sciences / Geography
Science / Life Sciences / Zoology / General
Science / Life Sciences / Biological Diversity
ISBN
0478226756
9780478226751
URL
http://books.google.com.hk/books?id=dkbdAAAACAAJ&hl=&source=gbs_api
註釋
A fish survey was carried out along 500 km of the West Coast South Island (WCSI) between Milford Sound (Fiordland) and Gentle Annie Point (Buller) during 1998-2000. Sampling at depths of 0.25 m, using mainly rotenone ichthyocide and spear, was conducted by teams of 4.6 divers who spent c. 150 hours under water collecting specimens and recorded habitat data. Intertidal rockpools and estuarine/freshwater habitats were sampled for c. 70 hours. A total of 101 marine, estuarine, and freshwater fish species in 72 genera representing 45 families were recorded, with station inventory lists supported by c. 3000 voucher specimens. Greatest fish species diversity was on subtidal rocky reefs. Species composition differed with major changes in habitat: sheltered deep reefs in the fiord; semi-exposed deep reefs at Jackson Head; exposed shallow reefs along Westland and Buller coasts. The WCSI reef fish fauna is a typical assemblage of New Zealand widespread species, but contains some distinctive elements uncommon elsewhere. Three species new to science and four rare species were collected: (1) Milford Sound (Fiordland): orange rockfish Acanthoclinus?n.sp., pygmy sleeper Thalasseleotris n.sp. (also at Jackson Head), fiord brotula Fiordichthys slartibartfasti Paulin and eyespot clingfish Modicus tangaroa Hardy; (2) Jackson Head and Murphy's Beach (South Westland): obscure triplefin Gilloblennius abditus Hardy; (3) Mokonui and Fourteen Mile (Westland): clingfish Gastroscyphus n.sp.; and (4) Seal Island, Punakaiki (Buller): marbled brotula Bidenichthys consobrinus (Hector). On the basis of physical and biological characteristics (including fishes, invertebrates and algae), three marine regions are recognised: Fiord; Fiordland open coast-South Westland; Westland-Buller. Results support the concept of a biogeographic transition zone between the Fiordland open coast and the Westland-Buller regions.
