Parapercis snyderi, U-mark sandperch

Parapercis snyderi Jordan & Starks 1905

U-mark sandperch
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This map was computer-generated and has not yet been reviewed.
Parapercis snyderi   AquaMaps   Data sources: GBIF OBIS
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Parapercis snyderi
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Classificatie / Names Populaire namen | Synoniemen | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

> Perciformes/Uranoscopoidei () > Pinguipedidae (Sandperches)
Etymology: Parapercis: Greek, para = the side of + Greek, perke = perch (Ref. 45335).  More on authors: Jordan & Starks.

Environment: milieu / climate zone / depth range / distribution range Ecologie

; marien rifbewoner; diepteverspreiding 10 - 40 m (Ref. 90102).   Subtropical

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Western Pacific: southern Japan to Queensland, Australia.

Size / Gewicht / Leeftijd

Maturity: Lm ?  range ? - ? cm
Max length : 11.0 cm TL mannelijk/geslacht niet bekend; (Ref. 42740)

Korte beschrijving Morfologie | Morfometrie

Dorsale stekels (totaal): 5; Dorsale zachte stralen (totaal): 20-21; Anale stekels 1-16; Anale zachte stralen: 18. This species is characterized by the following: D V,20-21 (usually 21); A I,16-18; 13-15 (rarely 13, usually 14) pectoral rays; 38-43 lateral-line scales; about 2-4 + 7-10 gill rakers; about 4 predorsal scales; ctenoid scales on cheek, in 4 horizontal rows; front of lower jaw with 8 canine teeth; vomerine teeth a broad chevron-shaped patch; with palatine teeth; upper edge of subopercle with a prominent sharp spine; serrae on opercular bones absent; body depth 4.15-4.75 in SL (21.20-24.1% SL); middle dorsal spine longest; membrane from last dorsal spine joined near base of first soft ray; body gray to reddish dorsally, white below with the edges of scales gray; a series of f5 broadly U-shaped dark brown bars on back, smaller posteriorly, or with a series of 5 double dark brown to black dashes, the anterior 2 with 1 above and 1 below lateral line; a series of 9 spots or short bars on lower side of body that may be blackish, reddish, or dusky yellow; small dark reddish spots, one per scale, often present scattered along side of body and on cheek; presence at side of snout of an iridescent pale blue line, and one beneath eye; lips with large dark blotches; usually presence of a midventral blackish spot on isthmus, often with a smaller black spot to each side anteriorly; edge of chin below lower lip dusky to blackish; spinous portion of dorsal fin may be entirely black, but usually blackish with large pale yellowish blotches in outer part; soft dorsal fin with rows of black to black-edged orange spots, the base of most rays black or with black upper ends of U-shaped marks extending into base of fin; anal fin base with a row of red spots, a red submarginal line, and a small black spot on penultimate membrane about one-third distance to margin; caudal fin with small blackish, dusky orange, or red spots, often with smaller white spots as well (Ref. 57562).

Biologie     Verklarende woordenlijst (b.v. epibenthic)

Found in silty sand and rubble areas near reefs at depths of 10-40 m (Ref. 2334, 90102).

Life cycle and mating behavior Geslachtsrijpheid | Voortplanting | Kuitschieten | Eieren | Fecundity | Larven

Pelagic spawner. A monandric species though some small males may develop directly from juveniles indicicating diandry (Ref. 103751).

Voornaamste referentie Upload your references | Referenties | Coördinator : Ho, Hsuan-Ching | Medewerkers

Randall, J.E., G.R. Allen and R.C. Steene, 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)

Status op de Rode Lijst van het IUCN (Ref. 123251)


CITES (Ref. 123416)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaarlijk voor mensen

  Harmless





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Estimates based on models

Preferred temperature (Ref. 115969): 20.5 - 29, mean 27.7 °C (based on 326 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00290 - 0.01435), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.4   ±0.4 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref. 120179):  Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Kwetsbaarheid (Ref. 59153):  Low vulnerability (14 of 100) .