A quantitative study of phytoplankton from the equatorial Pacific

Deep Sea Research (1953) Pub Date : 1959-01-01 DOI:10.1016/0146-6313(59)90055-3

Grethe Rytter Hasle

{"title":"A quantitative study of phytoplankton from the equatorial Pacific","authors":"Grethe Rytter Hasle","doi":"10.1016/0146-6313(59)90055-3","DOIUrl":null,"url":null,"abstract":"<div>The hydrography and abundance of phytoplankton were studied at three stations located in the equatorial Pacific, March 1957. Water bottle samples preserved with neutralized formalin were used for the phytoplankton study, which included the smaller forms of diatoms, dinoflagellates and coccolithophorids. Difficulties in obtaining reliable estimates in the case of poor populations were overcome by a simple concentration technique.The quantity of phytoplankton, computed as number of cells under 0·1 m2, was found to be much the same as the maximal figure for the Sargasso Sea and the amount obtained before and after the time of maximal population in the antarctic and subantarctic Pacific.In the equatorial Pacific phytoplankton abundance was restricted to the upper 50 to 100 m. Maxima in the numbers of diatoms were found nearer the surface than those of dinoflagellates, while the coccolithophorids showed different patterns in their vertical distribution. “Olivgrüne Zellen” (Hentschel) were present at the greatest sampling depths.A pennate diatom species, athecate dinoflagellates and certain small coccolithophorids were the most numerous forms observed.Circumstantial evidence of seasonal variation is discussed.</div>","PeriodicalId":100361,"journal":{"name":"Deep Sea Research (1953)","volume":"6 ","pages":"Pages 38-59"},"PeriodicalIF":0.0000,"publicationDate":"1959-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0146-6313(59)90055-3","citationCount":"64","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Deep Sea Research (1953)","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0146631359900553","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 64

Abstract

The hydrography and abundance of phytoplankton were studied at three stations located in the equatorial Pacific, March 1957. Water bottle samples preserved with neutralized formalin were used for the phytoplankton study, which included the smaller forms of diatoms, dinoflagellates and coccolithophorids. Difficulties in obtaining reliable estimates in the case of poor populations were overcome by a simple concentration technique.

The quantity of phytoplankton, computed as number of cells under 0·1 m², was found to be much the same as the maximal figure for the Sargasso Sea and the amount obtained before and after the time of maximal population in the antarctic and subantarctic Pacific.

In the equatorial Pacific phytoplankton abundance was restricted to the upper 50 to 100 m. Maxima in the numbers of diatoms were found nearer the surface than those of dinoflagellates, while the coccolithophorids showed different patterns in their vertical distribution. “Olivgrüne Zellen” (Hentschel) were present at the greatest sampling depths.

A pennate diatom species, athecate dinoflagellates and certain small coccolithophorids were the most numerous forms observed.

Circumstantial evidence of seasonal variation is discussed.

查看原文本刊更多论文

赤道太平洋浮游植物的定量研究

1957年3月，在赤道太平洋的三个监测站对水文和浮游植物丰度进行了研究。用中和福尔马林保存的水瓶样本用于浮游植物研究，其中包括较小形式的硅藻、鞭毛藻和球石藻。在贫穷人口的情况下，获得可靠估计数的困难已通过一种简单的集中技术加以克服。浮游植物的数量(以0.1 m2以下的细胞数计算)与马尾藻海的最大数量以及南极和亚南极太平洋最大种群出现前后的数量大致相同。在赤道太平洋，浮游植物的丰度仅限于50 ~ 100米的上层。硅藻与鞭毛藻相比，其数量的最大值更接近地表，而球石藻在垂直分布上表现出不同的模式。“olivgr ne Zellen”(Hentschel)出现在最大的采样深度。一种pennate硅藻、甲藻鞭毛藻和某些小的球石藻是观察到的最多的形式。讨论了季节变化的间接证据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Deep Sea Research (1953)

自引率

0.00%

发文量