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机译:Sperm size is negatively related to relative testis size in West African riverine cichlid fishes
Univ Bonn, Inst Evolutionary Biol & Ecol, Immenburg 1, D-53121 Bonn, Germany;
Pelvicachromis taeniatus; West African cichlids; Sperm competition; Mating system; Sexual selection; Gonadosomatic index;