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Remote Antarctic feeding ground important for east Australian humpback whales

机译:偏远的南极饲养场对东澳大利亚座头鲸很重要

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摘要

Understanding the dynamics of population recovery is particularly complex when an organism has multiple, remote breeding and feeding grounds separated by one of the longest known migration routes. This study reports on the most comprehensive assessment of humpback whale (Megaptera novaeangliae) movements between remote Antarctic waters south of New Zealand and east Australia (EA), and the migratory corridors and breeding grounds of Australia and Oceania. A total of-112 individual whales were identified; 57 from microsatellites and 61 by fluke with 23 % (n= 26) matched to sites outside Antarctica. Despite large datasets from other southern regions being included in the comparison, the whales were predominantly linked to EA (n=2A). Only two matches to the Oceania catalogues directly north was surprising; therefore the primary feeding grounds of these endangered whales still remain unknown. The confirmation of the Balleny Islands as an important feeding ground for EA whales could provide an insight into reasons behind the rapid recovery of this population. Determining the feeding grounds of Oceania's whales may explain whether prey energetics or migration length are limiting factors to their recovery and will allow an understanding of future ecosystem changes in these whales.
机译:当有机体有多个偏远的繁殖和觅食地,且被已知最长的迁徙路线之一隔开时,了解种群恢复的动态就特别复杂。这项研究报告了对新西兰南部和澳大利亚东部(EA)的偏远南极水域以及澳大利亚和大洋洲的迁徙走廊和繁殖地之间的座头鲸(Megaptera novaeangliae)运动的最全面评估。总共确定了112条鲸鱼;来自微卫星的57个和来自福禄克的61个,其中23%(n = 26)与南极洲以外的地点匹配。尽管比较中包括了来自其他南部地区的大量数据集,但鲸鱼主要与EA相关(n = 2A)。仅在北边的大洋洲目录中有两场比赛令人惊讶;因此,这些濒临灭绝的鲸鱼的主要觅食地仍然是未知的。巴利尼群岛被确认为EA鲸的重要觅食地,可以提供对该种群迅速恢复的原因的深入了解。确定大洋洲鲸鱼的觅食地可解释猎物的能量或迁移长度是否是限制其恢复的因素,并有助于了解这些鲸鱼未来的生态系统变化。

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  • 来源
    《Marine biology》 |2014年第5期|1087-1093|共7页
  • 作者单位

    School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand;

    Marine Mammal Institute, Oregon State University,2030SE Marine Science Dr., Newport, OR 97365, USA;

    Antarctic Humpback Whale Catalogue, College of the Atlantic,Bar Harbor, ME, USA;

    Southern Cross University Whale Research Centre, P.O. Box 157,Lismore, NSW 2480, Australia;

    Whales Alive, 31 Paterson St., Byron Bay, NSW 2481, Australia;

    School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand,Marine Mammal Institute, Oregon State University,2030SE Marine Science Dr., Newport, OR 97365, USA;

    Southern Cross University Whale Research Centre, P.O. Box 157,Lismore, NSW 2480, Australia;

    Southern Cross University Whale Research Centre, P.O. Box 157,Lismore, NSW 2480, Australia,Blue Planet Marine, Jamison Centre, P.O. Box 919, Canberra,ACT 2614, Australia;

    Blue Planet Marine, Jamison Centre, P.O. Box 919, Canberra,ACT 2614, Australia,Departement Milieux Et Peuplement, Aquatiques Museum National d'Histoire Naturelle, 75231 Paris, France;

    Australian Antarctic Division, Australian Marine Mammal Centre, 203 Channel Hwy, Kingston, TAS 7050, Australia;

    Australian Antarctic Division, Australian Marine Mammal Centre, 203 Channel Hwy, Kingston, TAS 7050, Australia;

    Governors Bay, RDl, Lyttelton 8971, New Zealand;

    Southern Cross University Whale Research Centre, P.O. Box 157,Lismore, NSW 2480, Australia,The Oceania Project, Byron Bay, NSW, Australia;

    Southern Cross University Whale Research Centre, P.O. Box 157,Lismore, NSW 2480, Australia,The Oceania Project, Byron Bay, NSW, Australia;

    Australian Antarctic Division, Australian Marine Mammal Centre, 203 Channel Hwy, Kingston, TAS 7050, Australia;

    Operation Cetaces, Noumea 98802, New Caledonia;

    Department of Conservation, P.O. Box 10-420,Wellington, New Zealand;

    Southern Cross University Whale Research Centre, P.O. Box 157,Lismore, NSW 2480, Australia;

    Cook Islands Whale Research, P.O. Box 3069,Avarua. Rarotonga, Cook Islands;

    Pacific Whale Foundation, Wailuku, HI 96793, USA;

    Centre for Whale Research (Western Australia),Fremantle, WA, Australia;

    Centre for Whale Research (Western Australia),Fremantle, WA, Australia;

    Pacific Whale Foundation, Wailuku, HI 96793, USA;

    Pacific Whale Foundation, Wailuku, HI 96793, USA;

    Hawaiian Islands Humpback Whale National Marine Sanctuary,726 S. Kihei Road, Kihei, HI 96753, USA;

    Fundacion CEQUA, 21 de Mayo #1690,061 Punta Arenas, Chile;

    Norfolk Island Whale Survey, Scarborough, QLD, Australia;

    Blue Planet Marine, Jamison Centre, P.O. Box 919, Canberra,ACT 2614, Australia;

    Marine Mammal Research Program, BP 698, 98728 Maharepa,Moorea, French Polynesia;

    Provincetown Center for Coastal Studies, 5 Holway Avenue,Provincetown, MA 02657, USA;

    Australian Antarctic Division, Australian Marine Mammal Centre, 203 Channel Hwy, Kingston, TAS 7050, Australia;

    Antarctic Humpback Whale Catalogue, College of the Atlantic,Bar Harbor, ME, USA;

    Department of Marine and Wildlife Resources, P.O. Box 3730,Pago Pago 96799, American Samoa;

    School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand;

    Ministry of Natural Resources and Environment, Government of Samoa, Private Bag, Apia, Samoa;

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