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Bathygobius brasiliensis, Noronha frillfin goby

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Bathygobius brasiliensis Carvalho-Filho & de Araújo, 2017

Noronha frillfin goby
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Image of Bathygobius brasiliensis (Noronha frillfin goby)
Bathygobius brasiliensis
Picture by Carvalho Filho, A.

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

Teleostei (teleosts) > Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobiinae
Etymology: Bathygobius: Greek, bathys = deep + Latin, gobius = gudgeon (Ref. 45335); brasiliensis: Named for the country type locality, Brazil.

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

Marine; demersal; depth range 1 - 3 m (Ref. 128474). Tropical

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

Southwest Atlantic: Brazil.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 8.1 cm SL male/unsexed; (Ref. 128474)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 8. This species is distinguished by the following characters: pectoral-fin rays 18-21; lateral scale rows 34-39; upper jaw length 7.4-10.7% SL (mean 8.9), and rarely more than 10% SL (4 out of 54); predorsal squamation reaching anteriorly to or beyond the anterior border of postorbital blotch; midline predorsal scales 26-30; pelvic fin when depressed falling far of the anus; cheek and operculum often with a few series of minute scales; first upper pectoral-fin ray often branch once, occasionally twice; second to fourth branch more than once; first dorsal-fin outline of adult males somewhat rectangular, while in females and young individuals with a somewhat triangular fin. Small pearly dots present all over the body, head and fins, arranged in horizontal series on body, vertical and horizontal series on fins, and splashed on head specially operculum and preoperculum; yellowish suffusion present everywhere including the outer border of dorsal fins (Ref. 128474).

Biology     Glossary (e.g. epibenthic)

Collected from reef crests and bottoms, and shallow tidepools everywhere in Fernando de Noronha and Atol das Rocas, up to 3 m deep. Observed in solitary, pairs or in large groups of up to 20 individuals, often in reef crests with rough waters, and eventually in sheltered sandy bottoms. Feeds mainly on small invertebrates, but also on small fishes. The eggs are guarded by territorial males, and their agonistic behaviour. Associated with several species of small fishes: blennies Scartella itajobi, Ophioblennius trinitatis, Entomacrodus vomerinus; labrids Malacoctenus sp., Labrisomus kalisherae, Labrisomus conditus; and the goby Coryphopterus glaucofraenum (Ref. 128474).

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

Main reference Upload your references | References | Coordinator | Collaborators

Rodríguez-Rey, G.T., A. Carvalho-Filho, M.E. de Araújo and A.M. Solé-Cava, 2017. Evolutionary history of Bathygobius (Perciformes: Gobiidae) in the Atlantic biogeographic provinces: a new endemic species and old mitochondrial lineages. Zoological J. Linn. Soc.182(2):360-384. (Ref. 128474)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Not Evaluated 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

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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 | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = No PD50 data   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00339 - 0.01546), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.5 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).

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