Analysis of the Fish Community on Tidal-Freshwater Constructed Reefs
Constructed reefs are used successfully in marine systems to enhance spawning habitat; this study examines the effectiveness of constructed reefs in a tidal-freshwater river. Fish abundance, species diversity and richness, residency, water column position, reproductive guilds, and feeding guilds we...
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ndltd-vcu.edu-oai-scholarscompass.vcu.edu-etd-38512017-03-17T08:26:37Z Analysis of the Fish Community on Tidal-Freshwater Constructed Reefs Langford, Briana Constructed reefs are used successfully in marine systems to enhance spawning habitat; this study examines the effectiveness of constructed reefs in a tidal-freshwater river. Fish abundance, species diversity and richness, residency, water column position, reproductive guilds, and feeding guilds were analyzed on two constructed reefs in the tidal-freshwater James River and compared to silted regions representing the primary substrate in the river. Reefs were sampled using hydroacoustics, electroshocking, gillnetting, trawling, and egg mats. The constructed reefs had a greater proportion of fish that broadcast spawn over hard substrate and a trend of more overall individual, residential, and demersal fish. The results suggest that the reefs may be attracting a different fish community than their respective comparison sites, though additional research on the effectiveness of constructed reefs in tidal-freshwater rivers is recommended. 2012-07-01T07:00:00Z text application/pdf http://scholarscompass.vcu.edu/etd/2852 http://scholarscompass.vcu.edu/cgi/viewcontent.cgi?article=3851&context=etd © The Author Theses and Dissertations VCU Scholars Compass Fish Fish Community Constructed Reefs Environmental Sciences Physical Sciences and Mathematics |
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Fish Fish Community Constructed Reefs Environmental Sciences Physical Sciences and Mathematics |
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Fish Fish Community Constructed Reefs Environmental Sciences Physical Sciences and Mathematics Langford, Briana Analysis of the Fish Community on Tidal-Freshwater Constructed Reefs |
description |
Constructed reefs are used successfully in marine systems to enhance spawning habitat; this study examines the effectiveness of constructed reefs in a tidal-freshwater river. Fish abundance, species diversity and richness, residency, water column position, reproductive guilds, and feeding guilds were analyzed on two constructed reefs in the tidal-freshwater James River and compared to silted regions representing the primary substrate in the river. Reefs were sampled using hydroacoustics, electroshocking, gillnetting, trawling, and egg mats. The constructed reefs had a greater proportion of fish that broadcast spawn over hard substrate and a trend of more overall individual, residential, and demersal fish. The results suggest that the reefs may be attracting a different fish community than their respective comparison sites, though additional research on the effectiveness of constructed reefs in tidal-freshwater rivers is recommended. |
author |
Langford, Briana |
author_facet |
Langford, Briana |
author_sort |
Langford, Briana |
title |
Analysis of the Fish Community on Tidal-Freshwater Constructed Reefs |
title_short |
Analysis of the Fish Community on Tidal-Freshwater Constructed Reefs |
title_full |
Analysis of the Fish Community on Tidal-Freshwater Constructed Reefs |
title_fullStr |
Analysis of the Fish Community on Tidal-Freshwater Constructed Reefs |
title_full_unstemmed |
Analysis of the Fish Community on Tidal-Freshwater Constructed Reefs |
title_sort |
analysis of the fish community on tidal-freshwater constructed reefs |
publisher |
VCU Scholars Compass |
publishDate |
2012 |
url |
http://scholarscompass.vcu.edu/etd/2852 http://scholarscompass.vcu.edu/cgi/viewcontent.cgi?article=3851&context=etd |
work_keys_str_mv |
AT langfordbriana analysisofthefishcommunityontidalfreshwaterconstructedreefs |
_version_ |
1718427879300136960 |