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Effects of Agricultural Limestone on Water Chemistry, Phytoplankton Productivity, and Fish Production in Soft Water Ponds
Author(s) -
Arce Rodolfo G.,
Boyd Claude E.
Publication year - 1975
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1975)104<308:eoalow>2.0.co;2
Subject(s) - alkalinity , productivity , phytoplankton , fish pond , nitrate , fish farming , environmental science , zoology , ammonium , tilapia , fish <actinopterygii> , fishery , chemistry , nutrient , environmental chemistry , aquaculture , biology , ecology , organic chemistry , economics , macroeconomics
Five ponds treated with agricultural limestone and five control ponds were stocked with Tilapia aurea and fertilized every 2 weeks with ammonium nitrate and triple superphosphate. Initially, total hardness and total alkalinity of the waters in the 10 ponds averaged 7.8 and 13.7 mg/liter, respectively. Liming caused a fourfold increase in total hardness and total alkalinity. Limed ponds had higher rates of phytoplankton productivity and yielded a 25% greater weight of fish than control ponds.