CONDITIONING AND INDUCED SPAWNING OF THE RED DRUM ( Sciaenops ocellata) UNDER VARIED CONDITIONS OF PHOTOPERIOD AND TEMPERATURE
Abstract Vitellogenesis, culminating in spawning, was artificially induced in red drum ( Sciaenops ocellata ) using photoperiod and temperature as exogenous stimuli. Maturation was induced out of season during the normal refractory period of red drum found in central Florida waters. Four regimes wer...
Published in: | Proceedings of the annual meeting - World Mariculture Society |
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Format: | Article in Journal/Newspaper |
Language: | English |
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1978
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Online Access: | http://dx.doi.org/10.1111/j.1749-7345.1978.tb00254.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1749-7345.1978.tb00254.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1749-7345.1978.tb00254.x |
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crwiley:10.1111/j.1749-7345.1978.tb00254.x 2024-09-15T18:32:12+00:00 CONDITIONING AND INDUCED SPAWNING OF THE RED DRUM ( Sciaenops ocellata) UNDER VARIED CONDITIONS OF PHOTOPERIOD AND TEMPERATURE Roberts, D. E. Harpster, B. V. Henderson, G. E. 1978 http://dx.doi.org/10.1111/j.1749-7345.1978.tb00254.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1749-7345.1978.tb00254.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1749-7345.1978.tb00254.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Proceedings of the annual meeting - World Mariculture Society volume 9, issue 1-4, page 311-332 ISSN 0164-0399 journal-article 1978 crwiley https://doi.org/10.1111/j.1749-7345.1978.tb00254.x 2024-08-01T04:22:49Z Abstract Vitellogenesis, culminating in spawning, was artificially induced in red drum ( Sciaenops ocellata ) using photoperiod and temperature as exogenous stimuli. Maturation was induced out of season during the normal refractory period of red drum found in central Florida waters. Four regimes were compared to a control. Three regimes culminated in advanced vitellogenesis and spawning. A semi‐natural regime induced spawning in 129 days, an abbreviated decelerating regime induced spawning in 83 days, and an abbreviated accelerating/decelerating regime induced spawning in 117 days. Functional maturity of females was defined by analysis of vitellogenic stage frequency and oocyte diameter frequency. Ovarian biopsies were taken by catheter at 30‐day intervals during experiment I, and 60‐day intervals during experiment II. For a 90‐day period in 1976, 4 females spawned 8.43 million eggs. For a 100‐day period in 1977, 8 females spawned 4.41 million eggs. Fertilization success was always greater than 99% and mean hatching success was 93.40% for all spawns. Article in Journal/Newspaper Red drum Wiley Online Library Proceedings of the annual meeting - World Mariculture Society 9 1-4 311 332 |
institution |
Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Vitellogenesis, culminating in spawning, was artificially induced in red drum ( Sciaenops ocellata ) using photoperiod and temperature as exogenous stimuli. Maturation was induced out of season during the normal refractory period of red drum found in central Florida waters. Four regimes were compared to a control. Three regimes culminated in advanced vitellogenesis and spawning. A semi‐natural regime induced spawning in 129 days, an abbreviated decelerating regime induced spawning in 83 days, and an abbreviated accelerating/decelerating regime induced spawning in 117 days. Functional maturity of females was defined by analysis of vitellogenic stage frequency and oocyte diameter frequency. Ovarian biopsies were taken by catheter at 30‐day intervals during experiment I, and 60‐day intervals during experiment II. For a 90‐day period in 1976, 4 females spawned 8.43 million eggs. For a 100‐day period in 1977, 8 females spawned 4.41 million eggs. Fertilization success was always greater than 99% and mean hatching success was 93.40% for all spawns. |
format |
Article in Journal/Newspaper |
author |
Roberts, D. E. Harpster, B. V. Henderson, G. E. |
spellingShingle |
Roberts, D. E. Harpster, B. V. Henderson, G. E. CONDITIONING AND INDUCED SPAWNING OF THE RED DRUM ( Sciaenops ocellata) UNDER VARIED CONDITIONS OF PHOTOPERIOD AND TEMPERATURE |
author_facet |
Roberts, D. E. Harpster, B. V. Henderson, G. E. |
author_sort |
Roberts, D. E. |
title |
CONDITIONING AND INDUCED SPAWNING OF THE RED DRUM ( Sciaenops ocellata) UNDER VARIED CONDITIONS OF PHOTOPERIOD AND TEMPERATURE |
title_short |
CONDITIONING AND INDUCED SPAWNING OF THE RED DRUM ( Sciaenops ocellata) UNDER VARIED CONDITIONS OF PHOTOPERIOD AND TEMPERATURE |
title_full |
CONDITIONING AND INDUCED SPAWNING OF THE RED DRUM ( Sciaenops ocellata) UNDER VARIED CONDITIONS OF PHOTOPERIOD AND TEMPERATURE |
title_fullStr |
CONDITIONING AND INDUCED SPAWNING OF THE RED DRUM ( Sciaenops ocellata) UNDER VARIED CONDITIONS OF PHOTOPERIOD AND TEMPERATURE |
title_full_unstemmed |
CONDITIONING AND INDUCED SPAWNING OF THE RED DRUM ( Sciaenops ocellata) UNDER VARIED CONDITIONS OF PHOTOPERIOD AND TEMPERATURE |
title_sort |
conditioning and induced spawning of the red drum ( sciaenops ocellata) under varied conditions of photoperiod and temperature |
publisher |
Wiley |
publishDate |
1978 |
url |
http://dx.doi.org/10.1111/j.1749-7345.1978.tb00254.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1749-7345.1978.tb00254.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1749-7345.1978.tb00254.x |
genre |
Red drum |
genre_facet |
Red drum |
op_source |
Proceedings of the annual meeting - World Mariculture Society volume 9, issue 1-4, page 311-332 ISSN 0164-0399 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1749-7345.1978.tb00254.x |
container_title |
Proceedings of the annual meeting - World Mariculture Society |
container_volume |
9 |
container_issue |
1-4 |
container_start_page |
311 |
op_container_end_page |
332 |
_version_ |
1810473950764859392 |