|The identification and development of the eggs and larvae of the blue whiting Micromesistius poutassou (Risso)|
Seaton, D.D.; Bailey, R.S. (1971). The identification and development of the eggs and larvae of the blue whiting Micromesistius poutassou (Risso). J. Cons. - Cons. Int. Explor. Mer 34(1): 76-83
In: Journal du Conseil - Conseil International pour l'Exploration de la Mer. Conseil International pour l'Exploration de la Mer: Copenhague. ISSN 0020-6466, more
|Authors|| || Top |
- Seaton, D.D.
- Bailey, R.S.
In view of the wide distributional range and the commercial potential of the Blue Whiting, Micromesistius poutassou (Risso), there is a clear need to be able to identify the planktonic eggs of this species. Artificial rearing experiments were carried out at Rockall in 1968 and 1969 on board the Department of Agriculture and Fisheries for Scotland's research vessel "Explorer". In 1968 the artificially fertilised eggs failed to survive beyond the formation of the segmentation cavity. In 1969, despite a considerable mortality, some eggs survived and the larvae hatched from them were kept alive for a period totalling nine days after fertilisation. Daily samples were preserved in dilute formalin and the characteristics of the stages of development found in the preserved material described. It is tentatively concluded that the pigment characteristics described in this paper are diagnostic of Blue Whiting eggs at least in the area west of Scotland.