Premium
Reproductive success and the energetic cost of parental care in male smallmouth bass
Author(s) -
Gillooly J. F.,
Baylis J. R.
Publication year - 1999
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1999.tb00636.x
Subject(s) - paternal care , biology , micropterus , bass (fish) , reproductive success , lean body mass , reproduction , zoology , captivity , ecology , demography , body weight , endocrinology , pregnancy , offspring , population , genetics , sociology
Direct field measurements of the energetic expenditure on parental care and within‐nest reproductive success of individual male smallmouth bass Micropterus dolomieui were determined by measuring the change in total body mass as well as by total body electroconductivity analysis (TOBEC™). With TOBEC, the change in total body lean mass of the same live individual was measured non‐destructively at the beginning and end of the parental care period. Lean mass was the primary source of energy utilized during parental care indicating starvation and potential loss of future reproduction. Individual loss in lean mass was related positively to reproductive success suggesting that the energy expended during parental care does affect individual fitness.