Daily, seasonal, and annual fluctuations among zooplankton populations in an unpolluted tropical embayment

Estuarine and Coastal Marine Science Pub Date : 1980-03-01 DOI:10.1016/S0302-3524(80)80101-0

Marsh J. Youngbluth

{"title":"Daily, seasonal, and annual fluctuations among zooplankton populations in an unpolluted tropical embayment","authors":"Marsh J. Youngbluth","doi":"10.1016/S0302-3524(80)80101-0","DOIUrl":null,"url":null,"abstract":"<div>During 1973–74 biweekly collections of zooplankton in Jobos Bay, Puerto Rico revealed that major differences in the abundance and variety of several populations were related to water circulation, seasonal rainfall, and diel behavior. Total densities of zooplankton ranged from 225 to 9050/m3 for night and 30 to 4700/m3 for day samples. Abundance levels increased about twofold from coastal to isolated regions of the bay but at least twice as many species occurred in the coastal areas. Rapid, short-term changes in abundance, pulses of about one order of magnitude, occurred shortly before and during the wet season. Diel differences in density, most notable among the copepod, Acartia tonsa, coincided with a seasonal increase in abundance.The size and composition of the zooplankton communities in Jobos Bay were similar to those found in one polluted, tropical embayment (Guayanilla Bay, Puerto Rico) but differed greatly from those described in another (Kingston Harbour, Jamaica).</div>","PeriodicalId":100492,"journal":{"name":"Estuarine and Coastal Marine Science","volume":"10 3","pages":"Pages 265-287"},"PeriodicalIF":0.0000,"publicationDate":"1980-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/S0302-3524(80)80101-0","citationCount":"37","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Estuarine and Coastal Marine Science","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0302352480801010","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 37

Abstract

During 1973–74 biweekly collections of zooplankton in Jobos Bay, Puerto Rico revealed that major differences in the abundance and variety of several populations were related to water circulation, seasonal rainfall, and diel behavior. Total densities of zooplankton ranged from 225 to 9050/m³ for night and 30 to 4700/m³ for day samples. Abundance levels increased about twofold from coastal to isolated regions of the bay but at least twice as many species occurred in the coastal areas. Rapid, short-term changes in abundance, pulses of about one order of magnitude, occurred shortly before and during the wet season. Diel differences in density, most notable among the copepod, Acartia tonsa, coincided with a seasonal increase in abundance.

The size and composition of the zooplankton communities in Jobos Bay were similar to those found in one polluted, tropical embayment (Guayanilla Bay, Puerto Rico) but differed greatly from those described in another (Kingston Harbour, Jamaica).

查看原文本刊更多论文

未受污染的热带海湾中浮游动物种群的日、季、年波动

1973年至1974年，对波多黎各Jobos湾浮游动物的两周收集表明，几种种群的丰度和多样性差异主要与水循环、季节性降雨和饮食行为有关。夜间浮游动物总密度为225 ~ 9050只/m3，白天浮游动物总密度为30 ~ 4700只/m3。从海湾的沿海地区到孤立地区，丰度水平增加了约两倍，但沿海地区的物种数量至少增加了一倍。丰度的快速、短期变化，大约一个数量级的脉动，发生在雨季前不久和雨季期间。密度的差异，最显著的是桡足动物Acartia tonsa，与丰度的季节性增加相吻合。乔博斯湾浮游动物群落的大小和组成与一个受污染的热带海湾(波多黎各瓜亚尼拉湾)相似，但与另一个(牙买加金斯顿港)的描述有很大不同。

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

Estuarine and Coastal Marine Science

自引率

0.00%

发文量