Stocks, or Geographically Separated Populations Of the New Zealand Orange Roughy, Hoplostethus Atlanticus, in Relation to Parasite Infestation, Growth Rate, and Otolith Shape
Abstract:Comparisons of parasite load of orange roughy Hoplostethus atlanticus (Teleostei: Trachichthyidae) against otolith shape, growth rate, depth of capture, sex and date of capture were grouped by both Quota Management Areas and Regional Fisheries Areas. Examination of the data showed that: (1) parasite load was not related to Quota Management Area, or to Regional Fisheries Areas; (2) parasite load is weakly related to both otolith shape and fish growth rate; (3) there are differences in growth rate between Regional Fisheries Areas; and (4) there is a significant variation in the shape of the otolith of H. atlanticus between Regional Fisheries Areas.
Document Type: Research Article
Publication date: November 1, 2000
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