Fish Aid — The Lake Mead Fertilization Project

Autor:	Larry J. Paulson, Donald H. Baepler, Richard P. Axler, Peter D. Vaux, Patrick J. Sollberger
Rok vydání:	1988
Předmět:	food.ingredient biology Fishing Aquatic Science biology.organism_classification Fishery Bass (fish) Food chain Trout food Human fertilization Wastewater Environmental science Sewage treatment Water quality Water Science and Technology
Zdroj:	Lake and Reservoir Management. 4:125-135
ISSN:	2151-5530 1040-2381
DOI:	10.1080/07438148809354820
Popis:	Sport fishing at Lake Mead in Nevada and Arizona is a resource valued at nearly $100 million per year to southern Nevada. During the past two decades, salmonids, mostly trout, have disappeared entirely, the largemouth bass catch has drastically declined despite greater fishing pressure, and the condition factors for striped bass have steadily deteriorated. It appears that a major reduction in phosphorus loading caused by the upstream impoundment of the Colorado River to form Lake Powell in 1963 and advanced wastewater treatment removal of phosphorus from domestic wastewater inflows in 1981 are the principal factors responsible for decreased production at all levels of the food chain. The Lake Mead Fertilization Project is an attempt to reverse these declining fisheries. The first large-scale test of fertilization occurred on May 30, 1987. More than 300 boats and 1,000 volunteers helped spread 20,000 gallons (75.7 m3) of liquid ammonium polyphosphate over 19,000 acres (7700 ha) of lake surface. Hi...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7f65e7006b46d3ad7981bc3f32af4754 https://doi.org/10.1080/07438148809354820 Zobrazit plný text záznamu