作者: Inigo Everson , Graeme Parkes , Karl-Hermann Kock , Ian L. Boyd
DOI: 10.1046/J.1365-2664.1999.00425.X
关键词:
摘要: Bottom trawl surveys on the South Georgia shelf indicate episodic declines in the abundance of the mackerel icefish Champsocephalus gunnari that, since 1990, are not directly …