Rogadius welanderi, Welander's flathead

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Rogadius welanderi (Schultz, 1966)

Welander's flathead
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Rogadius welanderi   AquaMaps   Data sources: GBIF OBIS
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Image of Rogadius welanderi (Welander\
Rogadius welanderi
Picture by Tonozuka, T.

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

Teleostei (teleosts) > Perciformes/Scorpaenoidei (Scorpionfishes) > Platycephalidae (Flatheads)
Eponymy: Dr Arthur Donovan Welander (1908–1982) was a fisheries biologist at the School of Fisheries, University of Washington, his alma mater which had awarded his BS (1934), MS (1940) and PhD (1946). [...] (Ref. 128868), visit book page.
More on author: Schultz.

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

Marine; reef-associated; non-migratory; depth range 6 - 40 m (Ref. 9790). Tropical; 10°N - 15°S

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

Indo-Pacific: Reunion east to American Samoa, south to Australia.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 13.0 cm TL male/unsexed; (Ref. 9790); common length : 8.0 cm TL male/unsexed; (Ref. 9790)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 9; Dorsal soft rays (total): 11; Anal spines: 0; Anal soft rays: 11. Preopercle with a small antrorse spine. Infraorbital and suborbital ridges bearing many fine serrations. Preocular spines 2-3. Lower side of head bicarinate. Iris lappet slightly bilobed. (Ref. 9790).
Body shape (shape guide): elongated.

Biology     Glossary (e.g. epibenthic)

Found in sandy areas of lagoons and seaward reefs. Usually caught with trawls in deeper water (Ref 90102).

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

Main reference Upload your references | References | Coordinator | Collaborators

Knapp, L.W., 1999. Platycephalidae. Flatheads. p. 2385-2421. In K.E. Carpenter and V.H. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the Western Central Pacific. Volume 4. Bony fishes part 2 (Mugilidae to Carangidae). FAO, Rome. (Ref. 9790)

IUCN Red List Status (Ref. 130435: Version 2025-1)

  Least Concern (LC) ; Date assessed: 04 March 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: of no interest
FAO - Publication: search | FishSource |

More information

Trophic ecology
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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 | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 27.8 - 29.1, mean 28.5 °C (based on 114 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00230 - 0.00908), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.6 se; based on size and trophs of closest relatives
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). 🛈