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Factors affecting the recovery of fish populations in an industrial river. [Brown trout]

Abstract

The river Ebbw Fawr, an industrial river of South-East Wales, was investigated over a three-year period to follow the re-establishment of fish populations as a result of pollution control measures at coal washeries and a steelworks on the river. These measures were effective in reducing levels of toxic materials and restoring dissolved oxygen levels and pH values acceptable for fish. Five freshwater fish species became established in parts of the river during the study period (1974-77). The brown trout Salmo trutta l. was the first to enter, followed by eel Anguilla anguilla l., stoneloach Noemacheilus barbatulus l., stickleback Gasterosteus aculeatus l. and bullhead Cottus gobio l., respectively. The flounder Platicthys flesus l., a euryhaline species, penetrated the river beyond the upper tidal limit. The minnow Phoxinus phoxinus l., a resident of other parts of the Ebbw system, did not recolonise during the study. Calculated toxicities and the results of fish caging tests indicated that water quality was satisfactory for fish populations throughout the river with the possible exception of a short reach immediately below the steelworks. The absence of fish from some upstream reaches with good water quality was due to the limited numbers of fish available for recolonisation and  More>>
Publication Date:
Jan 01, 1981
Product Type:
Journal Article
Reference Number:
EDB-84-006393
Resource Relation:
Journal Name: Environ. Pollut., Ser. A; (United Kingdom); Journal Volume: 26
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; 54 ENVIRONMENTAL SCIENCES; FISHES; SPECIES DIVERSITY; INDUSTRIAL WASTES; TOXICITY; ANIMAL GROWTH; OXYGEN; PH VALUE; POPULATION DYNAMICS; RIVERS; TROUT; UNITED KINGDOM; WATER POLLUTION CONTROL; WATER QUALITY; ANIMALS; AQUATIC ORGANISMS; CONTROL; ELEMENTS; ENVIRONMENTAL QUALITY; EUROPE; GROWTH; NONMETALS; POLLUTION CONTROL; STREAMS; SURFACE WATERS; VERTEBRATES; WASTES; WESTERN EUROPE; 560305* - Chemicals Metabolism & Toxicology- Vertebrates- (-1987); 520200 - Environment, Aquatic- Chemicals Monitoring & Transport- (-1989)
OSTI ID:
5473731
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: EPEBD
Submitting Site:
HEDB
Size:
Pages: 39-58
Announcement Date:

Citation Formats

Turnpenny, A W.M., and Williams, R. Factors affecting the recovery of fish populations in an industrial river. [Brown trout]. United Kingdom: N. p., 1981. Web. doi:10.1016/0143-1471(81)90097-0.
Turnpenny, A W.M., & Williams, R. Factors affecting the recovery of fish populations in an industrial river. [Brown trout]. United Kingdom. doi:10.1016/0143-1471(81)90097-0.
Turnpenny, A W.M., and Williams, R. 1981. "Factors affecting the recovery of fish populations in an industrial river. [Brown trout]." United Kingdom. doi:10.1016/0143-1471(81)90097-0. https://www.osti.gov/servlets/purl/10.1016/0143-1471(81)90097-0.
@misc{etde_5473731,
title = {Factors affecting the recovery of fish populations in an industrial river. [Brown trout]}
author = {Turnpenny, A W.M., and Williams, R}
abstractNote = {The river Ebbw Fawr, an industrial river of South-East Wales, was investigated over a three-year period to follow the re-establishment of fish populations as a result of pollution control measures at coal washeries and a steelworks on the river. These measures were effective in reducing levels of toxic materials and restoring dissolved oxygen levels and pH values acceptable for fish. Five freshwater fish species became established in parts of the river during the study period (1974-77). The brown trout Salmo trutta l. was the first to enter, followed by eel Anguilla anguilla l., stoneloach Noemacheilus barbatulus l., stickleback Gasterosteus aculeatus l. and bullhead Cottus gobio l., respectively. The flounder Platicthys flesus l., a euryhaline species, penetrated the river beyond the upper tidal limit. The minnow Phoxinus phoxinus l., a resident of other parts of the Ebbw system, did not recolonise during the study. Calculated toxicities and the results of fish caging tests indicated that water quality was satisfactory for fish populations throughout the river with the possible exception of a short reach immediately below the steelworks. The absence of fish from some upstream reaches with good water quality was due to the limited numbers of fish available for recolonisation and their restricted movements. Good growth and condition factors among the recolonising brown trout stock suggest that a sport fishery could be developed on the river, though constraints on spawning due to residual silt pollution indicate that stocking with hatchery reared fish will be necessary to maintain trout numbers.}
doi = {10.1016/0143-1471(81)90097-0}
journal = {Environ. Pollut., Ser. A; (United Kingdom)}
volume = {26}
journal type = {AC}
place = {United Kingdom}
year = {1981}
month = {Jan}
}