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The Development Rate of Eggs and Larvae of the Hake, Merluccius merluccius (L.) and Their Distribution to the West of the British Isles Coombs, S.H.; Mitchell, C.E. (1982). The Development Rate of Eggs and Larvae of the Hake, Merluccius merluccius (L.) and Their Distribution to the West of the British Isles. J. Cons. - Cons. Int. Explor. Mer 40(2): 119-126 In: Journal du Conseil. Conseil International pour l'Exploration de la Mer: Copenhague. ISSN 0020-6466

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Beschikbaar in	Auteurs
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Trefwoorden

Aquatic communities > Plankton > Zooplankton > Ichthyoplankton Biological development > Embryonic development Cells > Sexual cells > Eggs > Fish eggs Developmental stages Developmental stages > Larvae > Fish larvae Distribution > Geographical distribution Properties > Biological properties > Tolerance > Temperature tolerance Merluccius merluccius (Linnaeus, 1758) [WoRMS] Marien/Kust

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Auteurs		Top
Coombs, S.H. Mitchell, C.E.

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Abstract

An artificial fertilization of eggs of the hake (M. merluccius (L.)) was carried out and the development of the eggs and larvae is described with particular emphasis on features of practical value for identification of specimens from the plankton. Eggs were incubated over a range of temperatures and the relationships between incubation temperature and the time to the end of three separate stages of development and to hatching are presented. The time from fertilization to hatching decreased from 220 multiplied by 5 h at 8 multiplied by 1 °C to 69 multiplied by 2 h at 18 multiplied by 4°C. No eggs survived to hatch at incubation temperatures above 18 multiplied by 4 degree C while below 8 multiplied by 1 degree C embryonic development was still proceeding normally when the experiment was terminated. Eggs and larvae were usually taken in the plankton at the continental margin of the Celtic Plateau and were found mostly in the upper 150 m of the water column.

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