Reproductive strategy, egg characteristics and embryonic development of Greenland halibut (Reinhardtius hippoglossoides)
Abstract Domínguez-Petit, R., Ouellet, P., and Lambert, Y. 2013. Reproductive strategy, egg characteristics and embryonic development of Greenland halibut (Reinhardtius hippoglossoides). – ICES Journal of Marine Science, 70: 342–351. Despite the commercial importance of Greenland halibut (GH), impor...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fss180 http://academic.oup.com/icesjms/article-pdf/70/2/342/29145802/fss180.pdf |
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croxfordunivpr:10.1093/icesjms/fss180 2024-05-19T07:41:10+00:00 Reproductive strategy, egg characteristics and embryonic development of Greenland halibut (Reinhardtius hippoglossoides) Domínguez-Petit, Rosario Ouellet, Patrick Lambert, Yvan 2012 http://dx.doi.org/10.1093/icesjms/fss180 http://academic.oup.com/icesjms/article-pdf/70/2/342/29145802/fss180.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 70, issue 2, page 342-351 ISSN 1095-9289 1054-3139 journal-article 2012 croxfordunivpr https://doi.org/10.1093/icesjms/fss180 2024-04-25T07:58:53Z Abstract Domínguez-Petit, R., Ouellet, P., and Lambert, Y. 2013. Reproductive strategy, egg characteristics and embryonic development of Greenland halibut (Reinhardtius hippoglossoides). – ICES Journal of Marine Science, 70: 342–351. Despite the commercial importance of Greenland halibut (GH), important gaps exist in our knowledge of the reproductive and early life stage biology for this species. The present study examined through laboratory experiments the spawning strategy, realized fecundity, egg characteristics, biochemical composition, and embryonic development of GH. The results confirmed the hypothesis that GH is a single-batch spawner producing large eggs, resulting in low realized fecundity. Embryonic development and hatching time are highly dependent on incubation temperature; 50% hatching occurred after 46, 30, and 24 days at 2, 4, and 6°C, respectively. Few changes in the biochemical composition of the eggs are observed during embryonic development. Newly hatched larvae are not well developed, having a large yolk sac, no pigmentation and incomplete development of the jaws. Egg specific density confirmed the mesopelagic distribution of the eggs at sea. However, important buoyancy changes occurring in the last 3–4 days before hatching indicate that larvae hatch higher in the water column. These results are important for understanding advection and dispersion processes of GH eggs and larvae and the connectivity between spawning grounds and nursery areas. Article in Journal/Newspaper Greenland Oxford University Press ICES Journal of Marine Science 70 2 342 351 |
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description |
Abstract Domínguez-Petit, R., Ouellet, P., and Lambert, Y. 2013. Reproductive strategy, egg characteristics and embryonic development of Greenland halibut (Reinhardtius hippoglossoides). – ICES Journal of Marine Science, 70: 342–351. Despite the commercial importance of Greenland halibut (GH), important gaps exist in our knowledge of the reproductive and early life stage biology for this species. The present study examined through laboratory experiments the spawning strategy, realized fecundity, egg characteristics, biochemical composition, and embryonic development of GH. The results confirmed the hypothesis that GH is a single-batch spawner producing large eggs, resulting in low realized fecundity. Embryonic development and hatching time are highly dependent on incubation temperature; 50% hatching occurred after 46, 30, and 24 days at 2, 4, and 6°C, respectively. Few changes in the biochemical composition of the eggs are observed during embryonic development. Newly hatched larvae are not well developed, having a large yolk sac, no pigmentation and incomplete development of the jaws. Egg specific density confirmed the mesopelagic distribution of the eggs at sea. However, important buoyancy changes occurring in the last 3–4 days before hatching indicate that larvae hatch higher in the water column. These results are important for understanding advection and dispersion processes of GH eggs and larvae and the connectivity between spawning grounds and nursery areas. |
format |
Article in Journal/Newspaper |
author |
Domínguez-Petit, Rosario Ouellet, Patrick Lambert, Yvan |
spellingShingle |
Domínguez-Petit, Rosario Ouellet, Patrick Lambert, Yvan Reproductive strategy, egg characteristics and embryonic development of Greenland halibut (Reinhardtius hippoglossoides) |
author_facet |
Domínguez-Petit, Rosario Ouellet, Patrick Lambert, Yvan |
author_sort |
Domínguez-Petit, Rosario |
title |
Reproductive strategy, egg characteristics and embryonic development of Greenland halibut (Reinhardtius hippoglossoides) |
title_short |
Reproductive strategy, egg characteristics and embryonic development of Greenland halibut (Reinhardtius hippoglossoides) |
title_full |
Reproductive strategy, egg characteristics and embryonic development of Greenland halibut (Reinhardtius hippoglossoides) |
title_fullStr |
Reproductive strategy, egg characteristics and embryonic development of Greenland halibut (Reinhardtius hippoglossoides) |
title_full_unstemmed |
Reproductive strategy, egg characteristics and embryonic development of Greenland halibut (Reinhardtius hippoglossoides) |
title_sort |
reproductive strategy, egg characteristics and embryonic development of greenland halibut (reinhardtius hippoglossoides) |
publisher |
Oxford University Press (OUP) |
publishDate |
2012 |
url |
http://dx.doi.org/10.1093/icesjms/fss180 http://academic.oup.com/icesjms/article-pdf/70/2/342/29145802/fss180.pdf |
genre |
Greenland |
genre_facet |
Greenland |
op_source |
ICES Journal of Marine Science volume 70, issue 2, page 342-351 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fss180 |
container_title |
ICES Journal of Marine Science |
container_volume |
70 |
container_issue |
2 |
container_start_page |
342 |
op_container_end_page |
351 |
_version_ |
1799480762685194240 |