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首页> 外文期刊>ICES Journal of Marine Science >Harvesting juveniles of blackspot sea bream (Pagellus bogaraveo) in the Azores (Northeast Atlantic): biological implications, management, and life cycle considerations
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Harvesting juveniles of blackspot sea bream (Pagellus bogaraveo) in the Azores (Northeast Atlantic): biological implications, management, and life cycle considerations

机译：在亚速尔群岛（东北大西洋）收获黑点鲷（Pagellus bogaraveo）的幼体：生物学意义，管理和生命周期方面的考虑

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Blackspot sea bream (Pagellus bogaraveo) is the most important economical resource of Azorean fisheries. Juveniles (age 0 and 1) were detected along island coastlines in nursery grounds that sheltered individuals of up to 13 cm (fork length). Juveniles occurred in coastal areas in all seasons, but higher catch per unit efforts occurred during summer. Larger individuals tended to be caught on the shelves and slopes of the islands and seamounts by the demersal, mixed hook, and line fisheries. Juveniles were exclusively found at inshore areas, while spawners were distributed over offshore areas (islands shelf/slope and seamounts), suggesting an inter-connected cycle of recruitment in coastal areas and ontogenetic migration of juveniles from inshore to offshore areas, while eggs and larvae drift in the opposite direction. Juveniles were found to be targeted by three types of fisheries, amounting to cumulative annual catches of ～36 t. Shore angling was the most important fishing method, followed by bait fishing for tuna and the coastal pelagic live-bait fishery. Fishery managers have enforced several measures to protect juveniles, although our results indicate that effective interdiction of juvenile catch would provide a long-term increase of 15 and 8% in spawning-stock biomass and catch, respectively, as well as ～13% increase in the value of landings. Although this measure could improve the protection of a species in an advanced state of overexploitation, our results showed that a decrease in fishing effort would be necessary to achieve sustainability of the stock.
机译：黑点鲷（Pagellus bogaraveo）是亚速尔群岛渔业最重要的经济资源。在托儿所的岛屿海岸线上发现了少年（0岁和1岁），该收容所掩盖了长达13厘米（叉长）的个体。在所有季节中，沿海地区都有少年发生，但夏季单位捕捞量较高。较大的个体往往被沉没式，混钩和线型渔业困在岛屿和海山的架子和斜坡上。幼鱼仅在近海地区发现，而产卵则分布在近海区域（岛屿架子/斜坡和海山），这表明沿海地区的征募和幼体从近岸向近海区域的成年迁移是相互联系的循环，而卵和幼虫向相反方向漂移。发现少年是三种渔业的目标，累计年捕捞量约为36吨。岸上垂钓是最重要的捕鱼方法，其次是金枪鱼和沿海中上层活饵捕捞的诱饵捕鱼。渔业管理人员已经采取了几种保护幼鱼的措施，尽管我们的结果表明，有效地拦截幼鱼将使产卵生物量和捕捞量分别长期增加15％和8％，而对幼体生物量的长期增加将达到13％。着陆的价值。尽管该措施可以改善处于过度开发状态的物种的保护，但我们的结果表明，减少捕捞努力对于实现种群的可持续性是必要的。

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