Department of Primary Industries and Regional Development, Government of Western Australia, Western Australian Fisheries and Marine Research Laboratories, PO Box 20, North Beach, WA, 6920, Australia.
Swiss National Science Foundation, Wildhainweg 3, P.O. Box CH, 3001, Berne, Switzerland.
Ambio. 2021 Jul;50(7):1337-1350. doi: 10.1007/s13280-020-01495-6. Epub 2021 Feb 7.
Reliable catch information is scarce for most sharks and rays worldwide, with almost half of the stocks considered to be Data Deficient due to limited species-specific catch statistics. Western Australia (WA) hosts a diverse number of shark and ray species, some of which are considered to be threatened with extinction at a global level. Commercial catch statistics only account for shark and ray landings. The present study used the best available information to reconstruct unaccounted and unreported catches for 47 shark and ray taxa to better understand the impact of fishing. For some species, there was good agreement between reconstructed catches and reported landings, but overall reconstructed catches were 57% higher than those derived from official statistics alone, underestimating the actual extraction level for many species. The reconstructed catch time series provide the basis for the assessment of all species of sharks and rays captured in WA, including protected species that interact with commercial and recreational fisheries.
可靠的捕捞信息在全球范围内对于大多数鲨鱼和鳐鱼来说都很匮乏，由于有限的特定物种捕捞统计数据，几乎有一半的种群被认为是数据不足。西澳大利亚州（WA）拥有大量不同种类的鲨鱼和鳐鱼，其中一些在全球范围内被认为面临灭绝的威胁。商业捕捞统计数据仅记录了鲨鱼和鳐鱼的上岸量。本研究利用现有最佳信息，对 47 种鲨鱼和鳐鱼进行了未记录和未报告的捕捞量重建，以更好地了解捕捞的影响。对于某些物种，重建的捕捞量与报告的上岸量之间存在良好的一致性，但总体而言，重建的捕捞量比官方统计数据单独得出的捕捞量高出 57%，这低估了许多物种的实际捕捞水平。重建的捕捞时间序列为评估在 WA 捕获的所有鲨鱼和鳐鱼物种提供了基础，包括与商业和娱乐渔业相互作用的受保护物种。
