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Teleostei (teleosts) > Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobiinae
Etymology: Trimma: Greek, trimma, -atos = something crushed (Ref. 45335); erwani: Named for Erwan Delrieu-Trottin, who assisted in the collecting of these specimens.
Eponymy: Dr Erwan Delrieu-Trottin is an evolutionary biologist and diver. [...] (Ref. 128868), visit book page.

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

Marine; reef-associated; depth range 20 - 30 m (Ref. 112075). Tropical

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

Eastern Central Pacific: French Polynesia, Marquesas Islands.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 1.4 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 7; Dorsal soft rays (total): 8; Anal spines: 1; Anal soft rays: 8. This species is distinguished by the following characters: diagonally slanting grey and yellow bars on body; nape scaled with about 5-6 predorsal scales; pectoral fin with 16-17 unbranched rays; unbranched fifth pelvic-fin ray, about half length of fourth ray; interorbital region with a U-shaped trench and no postorbital trenches (Ref. 112075).

Its cryptic habits and small size make it difficult to observe and collect this species (Ref. 112075).

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

Main reference Upload your references | References | Coordinator | Collaborators

Viviani, J., J.T. Williams and S. Planes, 2016. Two new pygmygobies (Percomorpha: Gobiidae: Trimma) from French Polynesia. J. Ocean Sci. Found. 23:1-11. (Ref. 112075)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 07 September 2021

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

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Trophic ecology
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Ecology
Ecology

Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
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Abundance

Life cycle
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Maturity/Gills rel.
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Distribution
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Anatomy
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Genetics
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01023 (0.00477 - 0.02194), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

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).

Trimma erwani Viviani, Williams & Planes, 2016