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首页> 外文期刊>ICES Journal of Marine Science >From pup production to quotas: current status of harp seals in the Greenland Sea
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From pup production to quotas: current status of harp seals in the Greenland Sea

机译：从幼犬生产到定额：格陵兰海竖琴海豹的现状

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摘要

Harp seals (Pagophilus groenlandicus) have been harvested for centuries in the North Atlantic. Estimating abundance and monitoring changes in population size are critical for the management of the species. In March 2012, the harp seal pup production was estimated from aerial photographic surveys over the whelping areas. A total area of 305 km~2 was photographed and 6034 pups were counted on the photos. From this the total pup production estimate was 89 590 (s.e. = 12 310, CV = 13.7%). The status of the stock was subsequently assessed by fitting a population model to the independent pup production estimate, the historical catch data, and the historical reproduction data. The 2013 total abundance (including pups) was estimated to be 627 410 (95% Cl = 470 540-784 280) harp seals. We demonstrate how the model is used in assessment when exploring the effect of various catch scenarios on future predictions.
机译：竖琴海豹（Pagophilus groenlandicus）已在北大西洋数百年来收获。估计丰度并监测种群数量的变化对于物种的管理至关重要。 2012年3月，竖琴海豹幼崽的产量是通过对雏龙地区的航空摄影调查估算得出的。拍摄了305 km〜2的总面积，并记录了6034只幼崽。据此，幼崽的总产量估算为89 590（即= 12 310，CV = 13.7％）。随后通过将种群模型拟合到独立的幼崽生产估计数，历史渔获数据和历史繁殖数据来评估种群的状况。 2013年的总数（包括幼崽）估计为627 410（95％Cl = 470 540-784 280）竖琴海豹。我们展示了在探索各种捕捞情景对未来预测的影响时，如何将该模型用于评估。

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