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Pleuronectiformes (Flatfishes) >
Rhombosoleidae (South Pacific flounders)
Etymology: Peltorhamphus: Greek, pelteos, peltes = a fish named as "korakinos"; when it was salted received the name of "pelte" + Greek, rhamphos = bill (Ref. 45335); kryptostomus: Name from Greek 'krypto' meaning hidden and 'stomus' for mouth, referring to the mouth on the ocular side being mostly hidden by the broad rostral flap..
Environment: milieu / climate zone / depth range / distribution range
Sinh thái học
Biển gần đáy; Mức độ sâu 2 - 40 m (Ref. 123823), usually 11 - 20 m (Ref. 123823). Subtropical; 43°S - 47°S (Ref. 123823)
Southwest Pacific: New Zealand.
Length at first maturity / Bộ gần gũi / Khối lượng (Trọng lượng) / Age
Maturity: Lm ?, range 9 - 10 cm
Max length : 14.5 cm SL con đực/không giới tính; (Ref. 123823); 14.5 cm SL (female)
Short description
Hình thái học | Sinh trắc học
Các vây lưng mềm (tổng cộng): 86-97; Tia mềm vây hậu môn: 59 - 67; Động vật có xương sống: 37 - 38. This species is distinguished from its congeners by the following set of characters: deep body, with greatest depth anterior to midpoint and with moderately rapid posterior taper; anterior profile of snout is smoothly rounded; second ocular-side pectoral-fin ray is filamentous and shorter than greatest body depth; conspicuous, finger-like filaments 1-5 on inner anteroventral margin of fleshy skinfold on ocular-side lower jaw; no scales on blind sides of dorsal- and anal-fin rays; eyes relatively large with well-developed pupillary operculum; interorbital space relatively narrow (usually < diameter of lower eye) with 2-4 scales; often with 4-6 scales in diagonal row between anteroventral margin of lower (non-migrated) eye and dorsal margin of rostral flap above mouth; gillrakers on first arch long, pointed, robust, with first and sometimes second raker on upper limb overlapping dorsalmost raker(s) on lower limb of first arch; meristic values relatively low (37-38 total vertebrae, 86-97 dorsal- and 59-67 anal-fin rays, 64-82 lateral-line pores, usually 23-24 supracranial pterygiophores, 14-20 total gillrakers on first gill arch, 4-6 on upper limb of first arch); head relatively large and wide; caudal peduncle wide. Colouration: light-brown to light gray ocular-side background with numerous, minute, pinkish spots over entire surface, and with many scales on ocular side of head and body with black pigment on bases of ctenii; the dorsal and anal fins in both sexes with either a pattern of a single darkly pigmented ray alternating with 4-8 lighter-pigmented rays, or with rays uniformly pigmented; black pigmentation on inner lining of ocular-side opercle and entire roof of mouth (Ref. 123823).
This is a shallow-water species that occurs in 1.5-40 m, with majority of specimens (70 of 81) examined were caught between 11 m and 20 m (8 of 81 collected in 1.5-5.0 m, 2 of 81 taken at 21 m; and only 1 was taken at 40 m. Little else is known about the ecology of this species (Ref. 123823).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Các trứng | Sự sinh sản | Ấu trùng
Munroe, T.A., 2021. Systematic revision of the flatfish genus Peltorhamphus Günther, 1862 (Teleostei: Pleuronectiformes: Rhombosoleidae), including description of a new species from Southeastern New Zealand, with biological and ecological summaries for the species. Zootaxa 4905(1):1-104. (Ref. 123823)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Thêm thông tin
Age/SizeSự sinh trưởngLength-weightLength-lengthLength-frequenciesSinh trắc họcHình thái họcẤu trùngSự biến động ấu trùngBổ xungSự phong phúBRUVS
Các tài liệu tham khảoNuôi trồng thủy sảnTổng quan nuôi trồng thủy sảnCác giốngDi truyềnElectrophoresesDi sảnCác bệnhChế biếnNutrientsMass conversion
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Mức dinh dưỡng (Ref.
69278): 3.1 ±0.2 se; based on size and trophs of closest relatives
Thích nghi nhanh (Ref.
120179): Chiêù cao, thời gian nhân đôi của chủng quần tối thiểu là dưới 15 tháng (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
