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Praealticus caesius (Seale, 1906)

Blackmargin rockskipper
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Praealticus caesius   AquaMaps   Data sources: GBIF OBIS
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Image of Praealticus caesius (Blackmargin rockskipper)
Praealticus caesius
Picture by Randall, J.E.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Blenniiformes (Blennies) 鱸形目 (Blennies) > Blenniidae (Combtooth blennies) 鳚科 (Combtooth blennies) > Salariinae
Etymology: Praealticus: Latin, prae = in front of + Latin, altus, alticus = nutritious.
More on author: Seale.

Environment: milieu / climate zone / depth range / distribution range 生態學

海洋. 熱帶; 21°S - 24°S, 176°W - 128°W

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Western Central Pacific. Eastern Central Pacific: Pitcairn (Ref. 41650) and French Polynesia (Ref. 46206).
中西太平洋。 中太平洋東部: 皮特凱恩島 (參考文獻 41650) 與法屬玻里尼西亞.(參考文獻 46206)

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 7.9 cm SL 雄魚/尚未辨別雌雄; (Ref. 54980)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背棘 (總數) : 13; 背的軟條 (總數) : 17 - 20; 臀棘: 2; 臀鰭軟條: 19 - 22. Lip margins smooth; females dorsally whitish to light gray and ventrally white with a series of 6 paired black spots (anterior 2 pairs irregular with a row of spots above) on upper side of body, and 1 spot on caudal peduncle, each connected by a gray bar to a lower series; a black line on back at spinous portion of dorsal fin, and 4 pairs of small black spots along base of soft portion; small bluish white spots on posterior half of body, mostly on upper half; narrow black bars ventrally on head angling on to throat; a white line at posterior edge of eye continuing below to upper lip; median fins with blackish margins; posterior part of crest with a narrow pink margin and a broad, submarginal black band; dorsal-fin base with alternating black and whitish blotches; a black spot at midbase of caudal fin; males similar except with darker body; bluish white spots on body generally elliptical; faint oblique black bands on throat; oblique white lines in soft portion of dorsal fin. Last spine of dorsal fin very small; dorsal soft rays usually 19; anal soft ray rarely 19 or 22; middle 6-9 of 14 segmented caudal rays branched; lateral-line pores 5-9 (Ref. 54980).

生物學特性     字彙 (例如 epibenthic)

Facultative air-breathing (Ref. 126274); Adults are found in tidepools (Ref. 54980). Oviparous. Eggs are demersal and adhesive (Ref. 205), and are attached to the substrate via a filamentous, adhesive pad or pedestal (Ref. 94114). Larvae are planktonic, often found in shallow, coastal waters (Ref. 94114).

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚

Oviparous, distinct pairing (Ref. 205).中西太平洋。 中太平洋東部: 皮特凱恩島 (參考文獻 41650) 與法屬玻里尼西亞.(參考文獻 46206)

主要參考資料 Upload your references | 參考文獻 | 合作者 : Williams, Jeffrey T. | 合作者

Springer, V.G., 2001. Blennidae. Blennies (combtooth and sabertooth blennies). p. 3538-3546. In K.E. Carpenter and V. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Vol. 6. Bony fishes part 4 (Labridae to Latimeriidae), estuarine crocodiles. FAO, Rome. (Ref. 12848)

IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)

  無危 (LC) ; Date assessed: 27 March 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

  無害處的





人類使用

FAO - Publication: search | FishSource |

更多資訊

Trophic ecology
食物相
食性組成
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Ecology
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入添量
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參考文獻

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Estimates based on models

Preferred temperature (Ref. 123201): 24.7 - 25.9, mean 25.6 °C (based on 21 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00776 (0.00356 - 0.01695), b=3.00 (2.81 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  2.0   ±0.00 se; based on food items.
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).