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Rhinogobiops nicholsii (Bean, 1882)

Blackeye goby
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Rhinogobiops nicholsii   AquaMaps   Data sources: GBIF OBIS
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Image of Rhinogobiops nicholsii (Blackeye goby)
Rhinogobiops nicholsii
Picture by Steele, M.A.

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

Teleostei (teleosts) > Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobiinae
Etymology: Rhinogobiops: Greek, rhinos = nose + Latin, gobius = gudgeon Greek, ops = similar to;  nicholsii: Named after Capt. H.E. Nichols, U.S.N, its discoverer (Ref. 6885).
More on author: Bean.

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

Marine; demersal; depth range 0 - 106 m (Ref. 2850). Subtropical; 55°N - 27°N, 136°W - 114°W

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

Eastern Pacific: Wales Island, northern British Columbia, Canada to Punta Rompiente, central Baja California, Mexico.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm TL male/unsexed; (Ref. 2850); max. reported age: 5 years (Ref. 56049)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 5 - 7; Dorsal soft rays (total): 12 - 14; Anal spines: 0; Anal soft rays: 11 - 12. Caudal rounded.

Biology     Glossary (e.g. epibenthic)

Found usually in sandy areas near rocks. Occurs from intertidal areas to 106 m depth. Retreats to rocks or holes when approached. Young are found usually offshore among plankton. Oviparous (Ref. 56079). A protogynous hermaphrodite (Ref. 34256). Forms permanent harem groups composed of a single male and several smaller females (Ref. 55367). Eggs are guarded by the male (Ref. 56079).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Nesting occurs from April-October. Male cleans spawning site under rock, then attracts female by rising from bottom to display his black pelvic disk. Male guards nest after female lays eggs. Protogynous (Ref. 13452, 35501). Sex reversal is completed in less than 5 months (Ref. 34185, 34256). A monandric species (Ref. 55367). Length at sex change = 6.9 cm TL (Ref. 55367). Also Ref. 103751.

Main reference Upload your references | References | Coordinator | Collaborators

Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)

IUCN Red List Status (Ref. 130435)

  Not Evaluated 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial; aquarium: public aquariums
FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
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Ecology
Ecology
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Length-weight rel.
Length-length rel.
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BRUVS - Videos
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References
References

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Summary page | Point data | Common names | Photos

Internet sources

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

Estimates based on models

Preferred temperature (Ref. 123201): 8.3 - 12.8, mean 9.8 °C (based on 66 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00477 - 0.02194), b=3.02 (2.84 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.4   ±0.58 se; based on food items.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (tmax=5).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Price category (Ref. 80766):   Very high.
Nutrients (Ref. 124155):  Calcium = 162 [79, 343] mg/100g; Iron = 1.32 [0.70, 2.56] mg/100g; Protein = 18.5 [16.6, 20.1] %; Omega3 = 0.4 [0.2, 0.7] g/100g; Selenium = 21.9 [10.9, 43.4] μg/100g; VitaminA = 18.8 [5.8, 59.0] μg/100g; Zinc = 1.06 [0.73, 1.59] mg/100g (wet weight);