THE DISTRIBUTION AND BIOLOGY OF HAKE

Summary A brief account of some of the recent advances in our knowledge of the general biology, taxonomy and economic importance of the genus Merluccius , which have resulted mainly from the work of Hickling and of the Discovery investigations, has been given by way of introduction to a more detaile...

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Bibliographic Details
Published in:Biological Reviews
Main Author: HART, T. JOHN
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1948
Subjects:
Online Access:http://dx.doi.org/10.1111/j.1469-185x.1948.tb00457.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1469-185X.1948.tb00457.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1469-185X.1948.tb00457.x
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Summary:Summary A brief account of some of the recent advances in our knowledge of the general biology, taxonomy and economic importance of the genus Merluccius , which have resulted mainly from the work of Hickling and of the Discovery investigations, has been given by way of introduction to a more detailed discussion of its distribution, and in the hope of demonstrating the great interest of hake from a general biological point of view. The seven species of true hakes (i.e. not Urophycis spp.) distinguished by Norman (1937), and their normal distributional limits, are: Merluccius merluccius (Linnaeus) From the Norwegian Rinne southwards along the edge of the continental shelf west of Europe to Dakar. Mediterranean. M. hubbsi Marini From Magellan Straits northwards overthe Patagonian continental shelf to southern Brazil. M. productus (Ayres) Southern California to north‐western Alaska. ? China. M. gayi (Guichenot) Southern Chile to Paita in Peru, and possibly farther north. M. bilinearis (Mitchill) South coast of Newfoundland southwards to North Carolina and, rarely (in deep water only) to Florida and the Bahamas. M. capensis Castelnau Off South Africa, from Angola to Natal. M. australis (Hutton) Chatham Island, South Island of New Zealand and northwards to East Cape on North Island. A Challenger specimen from the Magellan region. There is a remote possibility that certain aberrant specimens secured in deep tropical waters off West Africa and in Panama Bay may represent two further distinct species, bridging the gaps between M. merluccius and M. capensis and between M. gayi and M. pro‐ductus. It is more probable that they represent odd stragglers (at most only racially distinct) of M. merluccius and M. gayi respectively. It has been shown that all the best‐known species of Merluccius conform in a striking manner to the same distributional pattern in relation to the major hydrological features, within the limits of their normal range. Where relatively cold currents flow towards the equator in the warmer half of the ...