ZOOPLANKTON COMMUNITY STRUCTURE AND COPEPOD EGG-PRODUCTION IN COASTAL WATERS OF THE CENTRAL GREAT-BARRIER-REEF LAGOON

被引：58

作者：

MCKINNON, AD ^{[1
]}

THORROLD, SR ^{[1
]}

机构：

[1] JAMES COOK UNIV,DEPT MARINE BIOL,TOWNSVILLE,QLD 4810,AUSTRALIA

来源：

JOURNAL OF PLANKTON RESEARCH | 1993年 / 15卷 / 12期

关键词：

D O I：

10.1093/plankt/15.12.1387

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

We describe zooplankton community structure and copepod egg production in the vicinity of the coastal boundary zone of the Great Barrier Reef lagoon, Australia. The abundance and egg production rate of constituents of the zooplankton assemblage characteristic of the coastal zone rapidly increase subsequent to events such as flooding and upwelling. Our sampling spanned two summer monsoonal seasons, the first of which (1990-91) was very wet. The second monsoonal season (1991-92) was very dry and was characterized by intrusive upwelling events from the Coral Sea. Chlorophyll a concentrations did not rise in the wet year, probably because of light limitation, but did rise as a result of upwelling. Terrestrial run-off in the wet year had a greater apparent effect on zooplankton abundance-patterns than did upwelling in the dry year, except where coastal trapping allowed sufficient time for increases in zooplankton abundance to occur. Egg production rates by the copepods Acrocalanus gibber and Acrocalanus gracilis showed haphazard spatial differences. Nitrogen-specific egg production ranged between 0.03 and 0.21 day-1 for A.gibber, and between 0.13 and 0.41 day-1 for A.gracilis. The egg production rate by A.gibber was food limited for most of the year and showed a poor correlation with temperature.

引用

页码：1387 / 1411

页数：25

共 45 条

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