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首页> 外文期刊>CCAMLR science: journal of the Scientific Committee and the Commission for the Conservation of Antarctic Marine Living Resources >Seabird interactions with trawl and longline fisheries for Dissostichus eleginoides and Champsocephalus gunnari
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Seabird interactions with trawl and longline fisheries for Dissostichus eleginoides and Champsocephalus gunnari

机译：海鸟与拖网和延绳钓渔业之间的相互作用，以用于Dissostichus eleginoides和Champsocephalus gunnari

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摘要

The behaviour of seabirds and the rate of incidental mortality were observed during commercial trawling operations for Patagonian toothfish (Dissostichus eleginoides) in the 1994/95 season near Macquarie Island and Kerguelen Island. Longlining for D. eleginoides and trawling for mackerel icefish (Champsocephalus gunnari) were also observed at Kerguelen. Many seabirds were constantly observed near the vessels, especially giant petrels (Macronectes halli and M. giganteus), black-browed albatrosses (Diomedea melanophris) and Dominican gulls (Larus dominicanus). White-chinned petrels (Procellaria aequinoctialis) were common only at Kerguelen. Bird mortality during trawling was zero at Macquarie Island and very low at Kerguelen; most was associated with a single vessel using a netsonde cable while targetting C. gunnari. Most mortality associated with both longliners and trawlers was of white-chinned petrels, with a lesser mortality of albatross species. Mortality rates associated with longlining in the Kerguelen region were lower than those reported for the South Georgia area, probably because the birds at the former site are distracted from the longlines by the discharge of offal from the side of the vessel opposite to where the longline is set.
机译：在Macquarie岛和Kerguelen岛附近的1994/95年度，巴塔哥尼亚牙鱼（Dissostichus eleginoides）的商业拖网作业期间观察到海鸟的行为和偶发死亡率。在Kerguelen也观察到了D. eleginoides的延绳钓和鲭鱼冰鱼（Champsocephalus gunnari）的拖网钓。在船只附近经常观察到许多海鸟，特别是巨大的海鸥（Macronectes halli和M. giganteus），黑眉信天翁（Diomedea melanophris）和多米尼加海鸥（Larus dominicanus）。白-海燕（Procellaria aequinoctialis）仅在Kerguelen常见。在麦格理岛，拖网作业中的鸟类死亡率为零，而在克格伦岛，鸟类死亡率非常低;多数目标是使用netsonde电缆与一艘船只相关联，同时瞄准了冈纳里梭菌。与延绳钓和拖网渔船相关的死亡率最高的是白chin海燕，信天翁物种的死亡率较低。与Kerguelen地区延绳钓有关的死亡率低于南乔治亚地区报告的死亡率，这可能是因为前者的鸟儿由于从船只上与延绳钓处相反的一侧排放杂物而从延绳钓上转移了注意力。组。

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