Teleostei (teleosts) >
Eupercaria/misc (Various families in series Eupercaria) >
Sparidae (Porgies)
Etymology: Amamiichthys: The name reflects the extremely limited distribution of the type species, which is known only from Amami-oshima Island, Ryukyu Islands, Japan.
Eponymy: Dr Kiyomatsu Matsubara (1907–1968) was originally called Kiyomatsu Sakamoto but on marrying he took his wife’s name as the family surname. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; benthopelagic. Subtropical
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 60.0 cm SL male/unsexed; (Ref. 559)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 12; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 8; Vertebrae: 24. Distinguished by the following set of characters: D XII,10, with the first and second dorsal-fin spines very short and the third and fourth (usually) dorsal-fin spines extremely elongated and filamentous; A III, 8; 56-61 pored lateral-line scales; absence of scales on preopercular flange; colour of head and body uniformly pinkish, with upper body having small distinct blue spots (sometimes overlapping pairs); without black margin on caudal fin (Ref. 104925).
Important food fish.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Tanaka, F. and Y. Iwatsuki, 2015. Amamiichthys, a new genus for the sparid fish Cheimerius matsubarai Akazaki 1962, and redescription of the species, with designation of a neotype. Zootaxa 4007(2):195-206. (Ref. 104925)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.00983 - 0.04439), b=2.96 (2.78 - 3.14), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (49 of 100).