分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
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).
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的; 深度上下限 5 - 47 m (Ref. 123823), usually 9 - 38 m (Ref. 123823). 亞熱帶的
Southwest Pacific: New Zealand.
西南太平洋: 紐西蘭。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 15.7 cm SL 雄魚/尚未辨別雌雄; (Ref. 123823); 16.1 cm SL (female)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背的軟條 (總數) : 98 - 116; 臀鰭軟條: 62 - 72. This species is distinguished from its congeners by the following set of characters: elongated body with greatest depth more evenly distributed over its length and with more gradual posterior taper beyond this point; long, filamentous second ocular-side pectoral-fin ray is longer than, or equal to its greatest body depth; head relatively narrow; scales on blind sides of dorsal- and anal-fin rays (at sizes ? 70 mm SL); with higher and mostly non-overlapping meristic values, total vertebrae ? 40, D 98-116, A 62-72, lateral-line pores 82-106,supracranial pterygiophores 25-31, usually 10–15 ; gill rakers on first gill arch usually 10-5; scales between mid-eye and dorsal margin of head usually 8-10; scales between anteroventral margin of lower (non-migrated) eye and dorsal margin of rostral hood above mouth usually 4-6; relatively small, thin gill rakers on upper limb of first gill arch. not reaching dorsalmost gill rakers on lower limb; with 1-5 fleshy, finger-like filaments on inner anteroventral margin of fleshy skinfold on ocular-side lower jaw; IO space relatively wide; and morphometric features including shorter postorbital length, narrower upper and lower head lobes, narrower caudal peduncle, smaller ratio of HW/HL, longer snout, and smaller eye. Colouration: ocular side with several faint longitudinal lines and sometimes with up to three dark blotches along lateral line; dorsal- and anal-fin rays and roof of mouth are uniformly pigmented; inner lining of ocular-side opercle dusky (not black) (Ref. 123823).
Found in subtidal coastal waters on sandy or sandy-mud bottoms. Small juveniles are caught at depths similar to those of adults, but juveniles are known to inhabit shallow water, not shallow-water inlets, perhaps reflecting an avoidance for areas with soft, silty substrates. Prey consumed may be similar to is congeners based on jaw morphology and mouth size, thus feeding on small small epibenthic and infaunal invertebrates such as crustaceans, molluscs, and polychaetes (Ref. 123823).
需要較好的參考文獻。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
西南太平洋: 紐西蘭。
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)
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Estimates based on models
Preferred temperature (Ref.
123201): 10.6 - 18.2, mean 14.9 °C (based on 146 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01820 (0.00786 - 0.04213), b=2.97 (2.76 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.1 ±0.2 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高度, 族群倍增時間少於 15個月 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
