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Grammonus nagaredai  Randall Hughes, 2008,,

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Grammonus nagaredai
Picture by Randall, J.E.

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

Actinopterygii (ray-finned fishes) > Ophidiiformes (Cusk eels) > Bythitidae (Viviparous brotulas) > Bythitinae
Etymology: Grammonus: Greek, gramma = signal, mark + Greek, onos = hake;  nagaredai: provided a series of photographs taken in his aquarium.   More on author: Randall.

Environment / Climate / Range Ecology

Marine; benthopelagic; depth range 6 - 9 m (Ref. 79569).   Tropical

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 82.0 cm SL male/unsexed; (Ref. 79569); 106.0 cm SL (female)

Short description Morphology | Morphometrics

Dorsal soft rays (total): 86; Anal soft rays: 64 - 66; Vertebrae: 42. Predorsal scales extending to interorbital space; scales present on opercle and preopercle; three overlapping longitudinal rows of prominent sensory papillae on body; body depth at origin of dorsal fin 3.2–3.4 in SL; head length 3.15-3.2 in SL; mouth strongly oblique; edge of preopercle smooth except for a tiny spine at rounded corner; caudal fin joined only basally to dorsal and anal fins; normal life color dark brown, the sensory papillae on head and body white.

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

Pacific: Hawaiian Islands.

Biology     Glossary (e.g. epibenthic)

From caves off O'ahu and Hawai'i (Ref. 79569).

Main reference Upload your references | References | Coordinator | Collaborators

Randall, J.E. and Hughes M.J., 2009. Grammonus nagaredai, a new viviparous marine fish (Ophidiiformes: Bythitidae) from the Hawaiian Islands. Pacific Science 63(1):137-146.

IUCN Red List Status (Ref. 90363)

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki |

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5005   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), based on all LWR estimates for this BS (Ref. 93245).
Trophic Level (Ref. 69278):  4.0   ±0.6 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  High to very high vulnerability (71 of 100) .