Premium
Effect of Water Temperature and Formulated Diets on Growth and Survival of Larval Paddlefish
Author(s) -
Kroll Kevin J.,
Van Eenennaam Joel P.,
Doroshov Serge I.,
Hamilton Jerry E.,
Russell Thomas R.
Publication year - 1992
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(1992)121<0538:eowtaf>2.3.co;2
Subject(s) - larva , hatching , biology , metamorphosis , zoology , nutrient , fishery , body weight , survival rate , ecology , endocrinology , medicine
Abstract Larval paddlefish Polyodon spathula were raised in tanks from hatching to metamorphosis at four constant water temperatures (16, 20, 24, and 28°C) and fed three salmonid diets with different physical densities. Larvae reared at 20°C and fed either of the two diets with the slower sinking rates had the best growth and survival at 30 d posthatch; survival ranged from 65 to 81%, and body weight ranged from 838 to 850 mg. A temperature of 24°C was sublethal and 28°C was lethal, whereas 16°C depressed survival and growth. Dietary nutrient content affected the proximate composition of larvae.