Poromitra oscitans  Ebeling, 1975

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

Actinopterygii (ray-finned fishes) > Stephanoberyciformes (Pricklefishes, bigscales and gibberfishes) > Melamphaidae (Bigscale fishes or ridgeheads)
Etymology: Poromitra: Greek, poros = porous + Greek, mitra = stripe, belt (Ref. 45335).

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

Marine; bathypelagic; depth range 645 - 5320 m (Ref. 58302).   Deep-water; 45°N - 49°S, 79°E - 109°W

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

Indo-Pacific: tropical waters.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 8.2 cm SL male/unsexed; (Ref. 9928)

Short description Morphology | Morphometrics

Dorsal spines (total): 3; Dorsal soft rays (total): 9-10; Anal spines: 1; Anal soft rays: 7 - 8. This species is distinguished by the following characters: spinulated posterior and lower margins of the praeoperculum with the angular part of the praeoperculum having a non-spinulated notch; insertion of the ventral fins at the level of the vertical of the posterior margin of the pectoral fin insertion, or sometimes slightly shifted anteriad in small specimens; upper jaw extends beyond the vertical of the posterior eye margin; possess the smallest eyes among other species of the genus, 10.7-17.2 times in HL; soft rays on dorsal fin 9-10, in anal fin 7-8; first branchial arch with 23-25 rakers; vertebrae 24-25; pyloric caeca 7 (Ref. 83463).

Biology     Glossary (e.g. epibenthic)

Trawled at depths greater than 800-1000 m (Ref. 4241, 83463); seined with unclosing fishing gear at 4500-0 m and with closing fishing gear at depths of 1300-645 m (Ref. 83463).

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

Main reference Upload your references | References | Coordinator | Collaborators

Kotlyar, A.N., 2009. Revision of the genus Poromitra (Melamphaidae): Part 4. Species of P. cristiceps Group: P. atlantica, P. oscitans, and P. agofonovae Kotlyar, species nova. J. Ichthyol. 49(8):563-574. (Ref. 83463)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: of no interest
FAO(Publication : search) | FishSource |

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Aquatic Commons | BHL | Cloffa | BOLDSystems | 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): 1.9 - 3.6, mean 2.4 (based on 2476 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00388 - 0.02580), b=3.04 (2.81 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.3   ±0.3 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):  Moderate vulnerability (43 of 100) .