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Platax boersii  Bleeker, 1853

Golden spadefish
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Image of Platax boersii (Golden spadefish)
Platax boersii
Picture by Randall, J.E.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Ephippidae (Spadefishes, batfishes and scats)
Etymology: Platax: Greek, platys = flat (Ref. 45335).   More on author: Bleeker.

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

Marine; reef-associated; depth range 1 - 50 m (Ref. 9407).   Tropical

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

Indo-West Pacific: Indonesia (including Mentawai Islands), New Guinea, and Philippines.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm TL male/unsexed; (Ref. 9407)

Short description Morphology | Morphometrics

Dorsal spines (total): 5; Dorsal soft rays (total): 31-34; Anal spines: 3; Anal soft rays: 24 - 28. Juveniles have extremely elongate vertical fins and closely resemble juvenile P. teira, but tend to be lighter with a silvery hue. Adults have smoothly rounded head profile like P. orbicularis, but usually have golden hue and lack small black spots (Ref. 37816). Adults (above 18 cm) yellowish silvery, usually with small, scattered black spots on body, dark bar through eye, and another bar just behind head. Median fins yellowish green. Anal-fin margin and rear margin of caudal fin black. Pelvic fins black. Small juveniles yellowish brown or silvery, with 2 black bars as in adults. Rear third of body blackish, the black colour continued onto dorsal and anal fins, and the front of the black zone on body often closely precede by a narrow faint dark bar. Caudal fin transparent except for black base. Jaws with bands of slender, flattened, tricuspid teeth, the middle cusp barely longer than lateral cups (Ref 43039).

Biology     Glossary (e.g. epibenthic)

Adults occur mostly in large schools along drop-offs, including outer reefs; singly in coastal waters. Juveniles are on deep slopes among tall coral formation (Ref. 48637). Benthopelagic (Ref. 58302).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Kuiter, R.H. and H. Debelius, 1994. Southeast Asia tropical fish guide. IKAN-Unterwasserarchiv, Frankfurt, Germany. 321 p. (Ref. 9407)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FishSource |

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
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Ecology
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Common names
Synonyms
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Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
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Length-weight
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Length-frequencies
Morphometrics
Morphology
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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Preferred temperature (Ref. 115969): 21.3 - 29, mean 28.2 (based on 798 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5313   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02399 (0.00986 - 0.05836), b=2.96 (2.75 - 3.17), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.4   ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low to moderate vulnerability (32 of 100) .