Longenecker K., Langston R., Kondio U., Bolick H., Mulrooney M. 2016. Rapid reproductive analysis and length–weight relations of three reef fishes (Actinopterygii: Perciformes and Tetraodontiformes) from a remote site in Papua New Guinea. Acta Ichthyol. Piscat.  46 (3): 263–270.

Abstract. We present length–weight relations (LWR) and use rapid, low-cost histological methods to describe the reproductive biology of three reef fishes from a remote area in Papua New Guinea: the striped monocle bream, Scolopsis lineata Quoy et Gaimard, 1824; the Indian goatfish, Parupeneus indicus (Shaw, 1803); and the blackbelly triggerfish, Rhinecanthus verrucosus (Linnaeus, 1758).  The LWR for Scolopsis lineata is W = 0.0191FL^3.02.  Male L₅₀ is 11.2 and female L₅₀ is 13.5 cm FL.  Overall sex ratio is female biased; however, for mature individuals, females dominate size-classes from 13 through 15 cm and males dominate smaller and larger size classes.  This species is a batch-spawning, protogynous hermaphrodite.  The LWR for Parupeneus indicus is W = 0.00904FL^3.25.  Male L_m is 14.7 and female L₅₀ is 18.4 cm FL.  Overall sex ratio is 1 : 1; however, for mature individuals, females dominate size-classes from 17 through 22 cm and males dominate smaller and larger size classes.  This species is a batch-spawning gonochore.  BF = 4.62FL^2.95.  The LWR for Rhinecanthus verrucosus is W = 0.0257TL^2.97.  Male L₅₀ is 13.0 and female L₅₀ is 14.1 cm TL.  Overall sex ratio is female biased; however, mature individuals are male biased ≥ 16.1 cm TL and, effectively, exclusively male ≥ 17.6 cm.  This species is a batch-spawning gonochore.  BF = 3.35 ∙ 10^–19TL^19.4.

Keywords: size-at-maturity, reproductive mode, size-specific sex ratios, batch fecundity, Morobe Province