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2006年6~8月,对智利外海渔场的5个站点(31°00′~40°45′S、82°05′~91°52′W)进行了浮游生物调查。结果显示,浮游植物共有7属10种,其中硅藻门有5属5种,甲藻门1属3种,蓝藻门1属2种;浮游植物平均生物量为0.416 mg/m3,最高生物量为0.822 mg/m3,最低为0.13 mg/m3。浮游动物为33属40种,其中桡足类有14种,占总种类数的35%,其次为浮游幼虫、水螅水母类、糠虾类和磷虾类等;浮游动物平均生物量为0.656 mg/m3,最高丰度为211 ind/m3,最低为33.5 ind/m3。通过对智利竹筴鱼产量及CPUE(单位渔获量努力量)叠加分析,发现中心渔场区域主要集中于38~43°S、80~83°W范围内,与各采样站点浮游植物生物量分布趋势一致,中心渔场与表层浮游动物生物量的分布尚不存在相对应的关联。
From June to August 2006, five sites (31 ° 00 ’~ 40 ° 45’ S, 82 ° 05 ’~ 91 ° 52’W) of Chile’s offshore fishing ground were surveyed for plankton. The results showed that there were 10 species of phytoplankton in 7 genera, including 5 genera of 5 genera in Phyllophyton, 3 genera of 1 genera in Phyllophyta and 2 species of Cyanophyta in 1 genera. The average biomass of phytoplankton was 0.416 mg / m3, and the highest biomass 0.822 mg / m3, the lowest is 0.13 mg / m3. The zooplankton is 33 genera and 40 species, of which there are 14 species of copepods, accounting for 35% of the total number of species, followed by plankton larvae, Merrem, Mysis and krill; zooplankton average biomass of 0.656 mg / m3, the highest abundance of 211 ind / m3, the lowest was 33.5 ind / m3. Based on the superposition analysis of bamboo production and CPUE (unit catch effort) in Chile, it was found that the central fishery area mainly concentrated in the range of 38 ~ 43 ° S and 80 ~ 83 ° W, and the phytoplankton biomass distribution The trends are consistent. There is no corresponding correlation between the distribution of surface zooplankton biomass in the central fishing grounds.