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Blue-green algae and fish population changes in a eutrophic estuary
Journal article   Peer reviewed

Blue-green algae and fish population changes in a eutrophic estuary

I.C. Potter, N.R. Loneragan, R.C.J. Lenanton and P.J. Chrystal
Marine Pollution Bulletin, Vol.14(6), pp.228-233
1983
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Abstract

Evidence is presented which indicates that dense blooms of the blue-green alga Nodularia spumigena have affected fish and crab populations in a large estuarine system in south-western Australia. For example, the numbers of fish were generally very low at sites in which the chlorophyll a level, an excellent indicator of Nodularia density during the late spring and summer, was above 100 μgl−1. Moreover, commercial fishermen have recorded greatly reduced catches in Nodularia-affected areas and dead fish and crabs were found in regions where Nodularia was very dense. While the effects of this blue-green alga apparently led to death in the case of some bottom-living species in the most affected parts of the system, more active species moved into regions where Nodularia was virtually absent.

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UN Sustainable Development Goals (SDGs)

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#6 Clean Water and Sanitation
#13 Climate Action
#14 Life Below Water
#15 Life on Land

Source: InCites

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Citation topics
3 Agriculture, Environment & Ecology
3.2 Marine Biology
3.2.216 Lake Ecosystems
Web Of Science research areas
Environmental Sciences
Marine & Freshwater Biology
ESI research areas
Environment/Ecology
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