Differences in External Morphology, Body Composition and Swimming Performance Between Hatchery- and Wild-Origin Marbled Rockfish (Sebastiscus marmoratus)
Stock enhancement based on hatchery-reared fish has become one of the most common forms of management practices in marine fisheries resource restoration. However, unnatural rearing environments may cause hatchery-reared fish to diverge phenotypically from wild conspecifics, with negative consequence...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-06-01
|
| Series: | Frontiers in Marine Science |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fmars.2022.912129/full |
| _version_ | 1818231632753065984 |
|---|---|
| author | Haoyu Guo Xiaofeng Zhang Joacim Näslund Liye Peng Chenhui Liu Mengjia Tian Xuejun Chai Dingyuan Zhang Xiumei Zhang |
| author_facet | Haoyu Guo Xiaofeng Zhang Joacim Näslund Liye Peng Chenhui Liu Mengjia Tian Xuejun Chai Dingyuan Zhang Xiumei Zhang |
| author_sort | Haoyu Guo |
| collection | DOAJ |
| description | Stock enhancement based on hatchery-reared fish has become one of the most common forms of management practices in marine fisheries resource restoration. However, unnatural rearing environments may cause hatchery-reared fish to diverge phenotypically from wild conspecifics, with negative consequences for post-release performance in the natural environments. To better evaluate the suitability of releasing hatchery-reared fish, it is necessary to understand the phenotypic effects of captive rearing, through comparisons with wild conspecifics. In this study, we compared body morphology, swimming performance, and biochemical body composition between hatchery-reared and wild marbled rockfish (Sebastiscus marmoratus) from the same general gene pool. The results show that the overall body profile differed significantly between the groups, with hatchery-reared individuals having a deeper body (in particular in the head and trunk regions), narrower caudal peduncles, and higher condition factor, as compared to wild conspecifics. Hatchery-reared marbled rockfish also had relatively shorter fins, for a given size. In terms of swimming performance, the hatchery-reared marbled rockfish performed worse than the wild, with slower burst swimming speeds and poorer endurance. Wild rockfish had higher body protein content but lower lipid levels compared to the hatchery-reared individuals. These results suggest that hatchery rearing conditions have a great impact on the phenotypic development, with possibly high effects on their post-release performance of the hatchery-reared marbled rockfish. Modifications for the hatchery environment and operation should be investigated with an aim to minimize the divergence in phenotypic development for production of more wild-like fish for stocking. |
| first_indexed | 2024-12-12T10:53:29Z |
| format | Article |
| id | doaj.art-ce4fedb1f287458c8f1996bb58bbfea4 |
| institution | Directory Open Access Journal |
| issn | 2296-7745 |
| language | English |
| last_indexed | 2024-12-12T10:53:29Z |
| publishDate | 2022-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Marine Science |
| spelling | doaj.art-ce4fedb1f287458c8f1996bb58bbfea42022-12-22T00:26:43ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452022-06-01910.3389/fmars.2022.912129912129Differences in External Morphology, Body Composition and Swimming Performance Between Hatchery- and Wild-Origin Marbled Rockfish (Sebastiscus marmoratus)Haoyu Guo0Xiaofeng Zhang1Joacim Näslund2Liye Peng3Chenhui Liu4Mengjia Tian5Xuejun Chai6Dingyuan Zhang7Xiumei Zhang8Fishery College, Zhejiang Ocean University, Zhoushan, ChinaFishery College, Zhejiang Ocean University, Zhoushan, ChinaDepartment of Aquatic Resources, Institute of Freshwater Research, Swedish University of Agricultural Sciences, Drottningholm, SwedenFishery College, Zhejiang Ocean University, Zhoushan, ChinaFishery College, Zhejiang Ocean University, Zhoushan, ChinaFishery College, Zhejiang Ocean University, Zhoushan, ChinaKey Laboratory of Mariculture and Enhancement, Marine Fisheries Research Institute of Zhejiang Province, Zhoushan, ChinaKey Laboratory of Mariculture and Enhancement, Marine Fisheries Research Institute of Zhejiang Province, Zhoushan, ChinaFishery College, Zhejiang Ocean University, Zhoushan, ChinaStock enhancement based on hatchery-reared fish has become one of the most common forms of management practices in marine fisheries resource restoration. However, unnatural rearing environments may cause hatchery-reared fish to diverge phenotypically from wild conspecifics, with negative consequences for post-release performance in the natural environments. To better evaluate the suitability of releasing hatchery-reared fish, it is necessary to understand the phenotypic effects of captive rearing, through comparisons with wild conspecifics. In this study, we compared body morphology, swimming performance, and biochemical body composition between hatchery-reared and wild marbled rockfish (Sebastiscus marmoratus) from the same general gene pool. The results show that the overall body profile differed significantly between the groups, with hatchery-reared individuals having a deeper body (in particular in the head and trunk regions), narrower caudal peduncles, and higher condition factor, as compared to wild conspecifics. Hatchery-reared marbled rockfish also had relatively shorter fins, for a given size. In terms of swimming performance, the hatchery-reared marbled rockfish performed worse than the wild, with slower burst swimming speeds and poorer endurance. Wild rockfish had higher body protein content but lower lipid levels compared to the hatchery-reared individuals. These results suggest that hatchery rearing conditions have a great impact on the phenotypic development, with possibly high effects on their post-release performance of the hatchery-reared marbled rockfish. Modifications for the hatchery environment and operation should be investigated with an aim to minimize the divergence in phenotypic development for production of more wild-like fish for stocking.https://www.frontiersin.org/articles/10.3389/fmars.2022.912129/fullmorphological variationgeometric morphometricsburst swimming speedcritical swimming speedbody composition |
| spellingShingle | Haoyu Guo Xiaofeng Zhang Joacim Näslund Liye Peng Chenhui Liu Mengjia Tian Xuejun Chai Dingyuan Zhang Xiumei Zhang Differences in External Morphology, Body Composition and Swimming Performance Between Hatchery- and Wild-Origin Marbled Rockfish (Sebastiscus marmoratus) Frontiers in Marine Science morphological variation geometric morphometrics burst swimming speed critical swimming speed body composition |
| title | Differences in External Morphology, Body Composition and Swimming Performance Between Hatchery- and Wild-Origin Marbled Rockfish (Sebastiscus marmoratus) |
| title_full | Differences in External Morphology, Body Composition and Swimming Performance Between Hatchery- and Wild-Origin Marbled Rockfish (Sebastiscus marmoratus) |
| title_fullStr | Differences in External Morphology, Body Composition and Swimming Performance Between Hatchery- and Wild-Origin Marbled Rockfish (Sebastiscus marmoratus) |
| title_full_unstemmed | Differences in External Morphology, Body Composition and Swimming Performance Between Hatchery- and Wild-Origin Marbled Rockfish (Sebastiscus marmoratus) |
| title_short | Differences in External Morphology, Body Composition and Swimming Performance Between Hatchery- and Wild-Origin Marbled Rockfish (Sebastiscus marmoratus) |
| title_sort | differences in external morphology body composition and swimming performance between hatchery and wild origin marbled rockfish sebastiscus marmoratus |
| topic | morphological variation geometric morphometrics burst swimming speed critical swimming speed body composition |
| url | https://www.frontiersin.org/articles/10.3389/fmars.2022.912129/full |
| work_keys_str_mv | AT haoyuguo differencesinexternalmorphologybodycompositionandswimmingperformancebetweenhatcheryandwildoriginmarbledrockfishsebastiscusmarmoratus AT xiaofengzhang differencesinexternalmorphologybodycompositionandswimmingperformancebetweenhatcheryandwildoriginmarbledrockfishsebastiscusmarmoratus AT joacimnaslund differencesinexternalmorphologybodycompositionandswimmingperformancebetweenhatcheryandwildoriginmarbledrockfishsebastiscusmarmoratus AT liyepeng differencesinexternalmorphologybodycompositionandswimmingperformancebetweenhatcheryandwildoriginmarbledrockfishsebastiscusmarmoratus AT chenhuiliu differencesinexternalmorphologybodycompositionandswimmingperformancebetweenhatcheryandwildoriginmarbledrockfishsebastiscusmarmoratus AT mengjiatian differencesinexternalmorphologybodycompositionandswimmingperformancebetweenhatcheryandwildoriginmarbledrockfishsebastiscusmarmoratus AT xuejunchai differencesinexternalmorphologybodycompositionandswimmingperformancebetweenhatcheryandwildoriginmarbledrockfishsebastiscusmarmoratus AT dingyuanzhang differencesinexternalmorphologybodycompositionandswimmingperformancebetweenhatcheryandwildoriginmarbledrockfishsebastiscusmarmoratus AT xiumeizhang differencesinexternalmorphologybodycompositionandswimmingperformancebetweenhatcheryandwildoriginmarbledrockfishsebastiscusmarmoratus |