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The Effects of Monochloramine on Selected Riverine Fishes
Author(s) -
Seegert Gregory L.,
Brooks Arthur S.,
Castle John R. Vande,
Gradall Kenneth
Publication year - 1979
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(1979)108<88:teomos>2.0.co;2
Subject(s) - fishery , geography , environmental science , zoology , biology
Ten riverine fish species were tested at 10, 20, and 30 C to determine their resistance to monochloramine. The exposure regime consisted of four 40‐minute exposures administered at 5‐hour intervals over 24 hours. All species exhibited an inverse relationship between temperature and median lethal (LC50) concentrations. LC50 values generally decreased by a factor of two as the exposure temperature increased from 10 to 30 C. LC50 values ranged from 0.35 mg/liter at 30 C for the emerald shiner to 3.00 mg/liter at 10 C for the bluegill. Based on their resistance to monchloramine at 30 C the fish were separated into sensitive and resistant groups. The sensitive group, which included (in decreasing order of sensitivity) the emerald shiner (Notropis atherinoides), spotfin shiner (Notropis spilopterus), common shiner (Notropis cornutus), channel catfish (Ictalurus punctatus), white sucker (Catastomus commersoni), and sauger (Stizostedion canadense), had LC50 values ranging from 0.35 to 0.71 mg/liter. The resistant group, freshwater drum (Aplodinotus grunniens), white bass (Morone chrysops), bluegill (Lepomis macrochirus), and carp (Cyprinus carpio) had LC50 values of 1.0–1.50 mg/liter.