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根据2010年1月31日～2月13日在南极南奥克尼群岛西部水域开展的南极海洋生物资源调查期间收集的数据及卫星获取的水温数据(海水表温和表温距平),对南极磷虾时空分布及其与表温之间的关系进行了分析。结果表明:(1)02:00～18:00为南极磷虾群出现频率较高的时段,随后南极磷虾群出现概率开始下降,至22:00～02:00时间段降至最低。(2)越靠近南奥克尼群岛,南极磷虾的丰度越高,而外洋水域的丰度相对较低;磷虾群主要出现在60°00’～60°30’S,46°30’～47°30’W范围内。(3)磷虾群主要出现在表温在1.4～1.5℃或表温距平为-0.1～-0.2℃范围内,而表温在1.2℃或表温距平在-0.2℃以下时,磷虾群出现的概率较低。本研究结果可为开发南极磷虾资源提供基础数据,并为海上生产提供指导性参考。
Based on the data collected during the Antarctic Marine Living Resources Survey conducted in the waters off the western Orkney Islands in the southern Antarctic from January 31 to February 13, 2010 and the temperature data obtained by satellite (sea surface temperature and surface temperature anomalies) The temporal and spatial distribution of krill and its relationship with the surface temperature were analyzed. The results showed that: (1) 02: 00-18: 00 was the period when the Antarctic krill population appeared more frequently, and then the probability of Antarctic krill population began to decline, reaching the minimum between 22: 00-02: 00. (2) The closer the South Orkney Islands, the higher the abundance of Antarctic krill, while the abundance of the outer waters is relatively low. The krill population mainly occurs at 60 ° 00’-60 ° 30’S, 46 ° 30’N ~ 47 ° 30’W range. (3) The krill population mainly appeared in the range of 1.4-1.5 ℃ or -0.1 ~ -0.2 ℃, while the surface temperature was 1.2 ℃ or the surface temperature was below -0.2 ℃ The probability of emergence of shrimp is lower. The results of this study can provide basic data for the development of Antarctic krill resources and provide guidance for the offshore production.