Pseudorhombus diplospilus, Four twin-spot flounder : fisheries

Pseudorhombus diplospilus Norman, 1926

Four twin-spot flounder
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Pseudorhombus diplospilus   AquaMaps   Data sources: GBIF OBIS
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Image of Pseudorhombus diplospilus (Four twin-spot flounder)
Pseudorhombus diplospilus
Picture by CSIRO

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

Teleostei (teleosts) > Pleuronectiformes (Flatfishes) > Paralichthyidae (Large-tooth flounders)
Etymology: Pseudorhombus: Greek, pseudes = false + Greek, rhombos = paralelogram (Ref. 45335).
More on author: Norman.

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

Marine; demersal; depth range 10 - 75 m (Ref. 11790). Tropical

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

Western Pacific: South China Sea to the Indo-Australian Archipelago (including Western Australia).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm SL male/unsexed; (Ref. 9774); common length : 25.0 cm SL male/unsexed; (Ref. 9774)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 75 - 81; Anal spines: 0; Anal soft rays: 61 - 64. Pectoral fin on ocular side with 11-12 soft rays.
Body shape (shape guide): short and / or deep.

Biology     Glossary (e.g. epibenthic)

Inhabits shallow water (10 m) on mud and sand bottoms of coastal zones (Ref. 9774) to a depth of 150 m (Ref. 9494). Feeds on small benthic animals (Ref. 9774). Caught mainly with prawn trawls (Ref. 9774). Marketed fresh and considered a good food fish.

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

Distinct pairing (Ref. 205).

Main reference Upload your references | References | Coordinator : Amaoka, Kunio | Collaborators

Allen, G.R. and R. Swainston, 1988. The marine fishes of north-western Australia: a field guide for anglers and divers. Western Australian Museum, Perth. 201 p. (Ref. 3132)

IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))

  Least Concern (LC) ; Date assessed: 13 November 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial
FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items (preys)
Diet composition
Food consumption
Food rations
Predators
Ecology
Ecology
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics
Distribution
Territories
FAO areas
Ecosystems
Occurrences
Introductions
BRUVS - Videos
Anatomy
Gill area
Brain
Otolith
Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)
Genetics
Genome
Genetics
Heterozygosity
Heritability
Genetic Diversity
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Outreach
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Taxonomy
Common names
Synonyms
Morphology
Morphometrics
Pictures
References
References

Tools

E-book | Field guide | Identification keys | Length-frequency wizard | Life-history tool | Point map | Catch-MSY |

Special reports

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Summary page | Point data | Common names | Photos

Internet sources

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

Estimates based on models

Phylogenetic diversity index
(Ref. 82804) 		PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight a=0.00741 (0.00344 - 0.01597), b=3.17 (3.00 - 3.34), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level
(Ref. 69278) 		3.5   ±0.37 se; based on food items.
Resilience
(Ref. 120179) 		Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability
(Ref. 59153) 		Moderate vulnerability (39 of 100). 🛈
Price category
(Ref. 80766) 		Very high.