Fishes of Japan(Nakabo, 2002)
Dorsal rays XII, 15-16; Anal rays II, 12-13; pectoral rays 19-20; lateral-line scales 19-20; gill raker 3-9+11-14 on first gill arch body depth 1.8-1.9 in standard length. Upper and lower accessory caudal rays not spinous. Posterior margin of preopercle smooth. Both jaws with uniserial teeth. Body brown with darker scale margins and a small pale spot on base of each scale; a white bar on side below middle of spinous dorsal fin.
Inhabits surge-swept shorelines and seaward reef margins. Juveniles often occur in pockets of the intertidal reef crest, while adults are found in ridges between surge channels. Feeds on benthic algae. Juveniles found in sheltered ocean bays, shallow low
Distributed in the Indo-Pacific from Red Sea and East Africa to the Pitcairn and Marshall island groups; Australia northward to Japan. It is a common species in Taiwan except western part.
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Adults inhabit surge-swept shorelines and seaward reef margins. Juveniles often occur in pockets of the intertidal reef crest, while adults are found in ridges between surge channels (Ref.
). Feed on benthic algae. Juveniles found in sheltered ocean bays, shallow low boulder-reefs above sand level. Known in clear-water reefs in gutters and upper edge of drop-offs (Ref.
). Oviparous, distinct pairing during breeding (Ref.
). Eggs are demersal and adhere to the substrate (Ref.
). Males guard and aerate the eggs (Ref.
Preferred temperature (Ref.
): 24.7 - 29.3, mean 28.3 (based on 3089 cells).
Phylogenetic diversity index (Ref.
= 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02239 (0.01068 - 0.04693), b=2.99 (2.82 - 3.16), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref.
Trophic Level (Ref.
): 2.0 ±0.00 se; Based on food items.
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
): Low vulnerability (22 of 100) .
Capuli, Estelita Emily
Luna, Susan M.
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