Post-spawning growth acceleration in fish as a result of reduced live weight and thus, increased food conversion efficiency
文献类型：期刊论文
| 作者 | Pauly, Daniel6; Froese, Rainer1; Liang, Cui2,5; Mueller, Johannes4; Sorensen, Peter3 |
| 刊名 | ENVIRONMENTAL BIOLOGY OF FISHES
 |
| 出版日期 | 2023-11-06 |
| 页码 | 13 |
| 关键词 | Atlantic cod Food conversion efficiency Gill-Oxygen Limitation Theory (GOLT) Respiration Somatic growth |
| ISSN号 | 0378-1909 |
| DOI | 10.1007/s10641-023-01482-2 |
| 通讯作者 | Pauly, Daniel(d.pauly@oceans.ubc.ca) |
| 英文摘要 | The conventional view of spawning in iteroparous bony fish, i.e., the "reproductive drain hypothesis," is based on the observation that somatic growth (in length) slows down noticeably at approximately the time fish attain maturity, and hence the assumption is made that investment in gonadal development slows down growth. However, when this is translated as growth in weight, the weight at first maturity (or puberty) is usually smaller than the weight at which growth rate is highest, i.e., weight growth accelerates after first maturity. We solve this conundrum, with some emphasis on female cod (Gadus morhua), by proposing the hypothesis that the substantial loss of body mass experienced by fish as a result of spawning is quickly compensated for by increased somatic growth after the spawning period, notably because of the increase in food conversion efficiency resulting from a sudden loss of body weight, which necessarily leads to a large increase in relative oxygen supply via the gills. This is consistent with the argument developed elsewhere that declining relative oxygen supply by the gills, whose surface area cannot keep up with increasing body weight, is the reason for growth rate declining with weight in adult fish. |
| WOS关键词 | COD GADUS-MORHUA ; ATLANTIC COD ; BODY-WEIGHT ; MATURE COD ; REPRODUCTION ; TEMPERATURE ; MATURATION ; HISTORY ; MODEL ; AGE |
| 资助项目 | Federal Ministry of the Environment, Nature Conservation and Nuclear Safety (BMU)[FKZ: 3521532201] |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:001099793700002 |
| 出版者 | SPRINGER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/183918]  |
| 专题 | 中国科学院海洋研究所 |
| 通讯作者 | Pauly, Daniel |
| 作者单位 | 1.Helmholtz Ctr Ocean Res, GEOMAR, Dusternbrooker Weg 20, D-24105 Kiel, Germany 2.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 3.Univ Minnesota, Dept Fisheries Wildlife & Conservat Biol, St Paul, MN 55108 USA 4.Leiden Univ Ctr Arts Soc, Arsenaalstr 1, NL-2311 VL Leiden, Netherlands 5.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266237, Peoples R China 6.Univ British Columbia, Inst Oceans & Fisheries, Sea Around Us, Vancouver, BC V6T 1Z4, Canada |
| 推荐引用方式 GB/T 7714 | Pauly, Daniel,Froese, Rainer,Liang, Cui,et al. Post-spawning growth acceleration in fish as a result of reduced live weight and thus, increased food conversion efficiency[J]. ENVIRONMENTAL BIOLOGY OF FISHES,2023:13. |
| APA | Pauly, Daniel,Froese, Rainer,Liang, Cui,Mueller, Johannes,&Sorensen, Peter.(2023).Post-spawning growth acceleration in fish as a result of reduced live weight and thus, increased food conversion efficiency.ENVIRONMENTAL BIOLOGY OF FISHES,13. |
| MLA | Pauly, Daniel,et al."Post-spawning growth acceleration in fish as a result of reduced live weight and thus, increased food conversion efficiency".ENVIRONMENTAL BIOLOGY OF FISHES (2023):13. |
入库方式： OAI收割
来源：海洋研究所
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