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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.


Pitcairn country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Museum: BPBM 16729 (23: 1.8-6.7 cm SL), 16800 (6: 4.3-5.9 cm SL) (Ref. 41650).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/pc.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/Pitcairn/pitcairn.htm
Occurrences: Occurrences Point map
Main Ref: Randall, J.E., 1999
National Database:

Common names from other countries

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

> Blenniiformes (Blennies) > Blenniidae (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 Οικολογία

Θαλασσινό(ά).   Tropical; 21°S - 24°S, 176°W - 128°W

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

Western Central Pacific. Eastern Central Pacific: Pitcairn (Ref. 41650) and French Polynesia (Ref. 46206).

Μέγεθος / Βάρος / Age

Maturity: Lm ?  range ? - ? cm
Max length : 7.9 cm SL αρσενικό/απροσδιόριστο; (Ref. 54980)

Short description Μορφολογία | Μορφομετρία

Ραχιαίες άκανθες (συνολικά): 13; Μαλακές ραχιαίες ακτίνες (συνολικά): 17-20; Εδρικές άκανθες 2; Μαλακές εδρικές ακτίνες: 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).

Βιολογία     Γλωσσάρι (π.χ. 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 Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες

Oviparous, distinct pairing (Ref. 205).

Main reference Upload your references | Αναφορές | Συντονιστής : Williams, Jeffrey T. | Συνεργάτες

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 Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 27 March 2009

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

Περισσότερες πληροφορίες

Χώρες
Περιοχές FAO
Οικοσυστήματα
Παρουσίες
Εισαγωγές
Stocks
Οικολογία
Δίαιτα
Τροφικά αντικείμενα
Κατανάλωση τροφής
Σιτηρέσιο
Κοινά ονόματα
Συνώνυμα
Μεταβολισμός
Θηρευτές
Οικοτοξικολογία
Αναπαραγωγή
Γεννητική Ωρίμανση
Γεννοβολία
Γονιμότητα
Αβγά
Egg development
Age/Size
Αύξηση
Length-weight
Length-length
Length-frequencies
Μορφομετρία
Μορφολογία
Προνύμφες
Δυναμική προνυμφών
Στρατολόγηση
Αφθονία
Αναφορές
Υδατοκαλλιέργειες
Προφίλ υδατοκαλλιέργειας
Στελέχοι
Γενετική
Electrophoreses
Κληρονομικότητα
Ασθένειες
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Mass conversion
Συνεργάτες
Φωτογραφίες
Stamps, Coins Misc.
Ήχοι
Σιγκουατέρα
Ταχύτητα
Κολυμβητικός Τύπος
Επιφάνεια βραγχίων
Otoliths
Εγκέφαλοι
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Διαδικτυακές πηγές

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(Γένος, Είδη) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Δέντρο Ζωής | Wikipedia(Go, αναζήτηση) | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 24.7 - 25.9, mean 25.6 (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=0.00741 (0.00335 - 0.01640), b=3.02 (2.83 - 3.21), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  2.0   ±0.00 se; based on food items.
Ελαστικότητα (Ref. 120179):  Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).