Praealticus bilineatus, White-dotted rockskipper

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Praealticus bilineatus (Peters, 1868)

White-dotted rockskipper
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Native range | All suitable habitat | Point map | Year 2050
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Praealticus bilineatus   AquaMaps   Data sources: GBIF OBIS
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Image of Praealticus bilineatus (White-dotted rockskipper)
Praealticus bilineatus
Picture by Senou, H.

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

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

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

Marine; reef-associated; depth range 0 - 6 m (Ref. 86942). Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Pacific: South China Sea.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 9.0 cm TL male/unsexed; (Ref. 90102)

Short description Morphology | Morphometrics

Dorsal spines (total): 13; Dorsal soft rays (total): 18-20; Anal spines: 2; Anal soft rays: 18 - 21. Head and body greyish brown with small white spots; median fin with white dots. Dorsal fin deeply notched; segmented caudal rays usually 13-14, branched middle 6-9; pinnately branched supraorbital tentacle; lacking nape cirri; posterior rim of anterior nostril with small cirrus, typically unbranched; upper and lower lip margins smooth; with occipital crest (higher in males); last dorsal ray and caudal peduncle connected by membrane; elongate body, depth at anal-fin origin ca. 7.7-7.9 in SL. Maximum size to 9 cm TL (Ref. 90102).

Biology     Glossary (e.g. epibenthic)

Facultative air-breathing (Ref. 126274); Adults inhabit exposed rocky shores (Ref. 90102). 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 Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous, distinct pairing (Ref. 205).

Main reference Upload your references | References | Coordinator : Williams, Jeffrey T. | Collaborators

Randall, J.E. and K.K.P. Lim (eds.), 2000. A checklist of the fishes of the South China Sea. Raffles Bull. Zool. Suppl. (8):569-667. (Ref. 36648)

IUCN Red List Status (Ref. 130435)

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

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

More information

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Ecology
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Common names
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Predators
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Fecundity
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Age/Size
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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 27.1 - 29.3, mean 28.8 °C (based on 1167 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).
Trophic level (Ref. 69278):  2.0   ±0.00 se; based on food items.
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).