Trimma meranyx Winterbotton, Erdmann & Dita Cahyani, 2014

Day-night pygmy goby
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Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Trimma meranyx   AquaMaps   Data sources: GBIF OBIS
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Classificação / Names Nomes comuns | Sinônimos | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (peixes com raios nas barbatanas) > Perciformes (Perch-likes) > Gobiidae (Gobies) > Gobiinae
Etymology: Trimma: Greek, trimma, -atos = something crushed (Ref. 45335);  meranyx: Name from Greek words 'mera' meaning day, and 'nyx' meaning night, for ‘day-night pygmy goby’, referring to its unique colouration of a black peduncle with twin 'suns' dorsally and ventrally; noun in apposition.

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

; marinhas associadas(os) a recifes; intervalo de profundidade 45 - 70 m (Ref. 96671).   Tropical

Distribuição Países | Áreas da FAO | Ecossistemas | Ocorrências | Point map | Introduções | Faunafri

Western Pacific: Indonesia, Papua New Guinea; photographic taken from the Philippines and Vanuatu.

Tamanho / Peso / Idade

Maturity: Lm ?  range ? - ? cm
Max length : 1.9 cm SL (female)

Descrição suscinta Morfologia | Morfometria

Espinhos dorsais (total): 7; Raios dorsais (total): 8; Espinhos anais 1; Raios anais : 8. This species is distinguished by the following set of characters: a narrow bony interorbital (< 55% pupil width), predorsal midline with 8-9 scales; cycloid scales usually along the upper border of the opercle which may be in up to 3 horizontal rows; 2 (usually cycloid) cheek scales; a very slightly elongate second dorsal spine usually reaching posteriorly to between the base of the spine and the base of the second ray of the second dorsal fin; unbranched pectoral-fin rays; fifth pelvic-fin ray which branches once dichotomously and is 64-85% the length of the fourth ray; a full basal membrane connecting the inner margins of the fifth pelvic fins rays in undamaged specimens; black posterior half of the caudal peduncle with a large white spot dorsally and ventrally just anterior to the procurrent caudal fin rays is unique within the genus (Ref. 96671).

Biologia     Glossário (p.ex. epibenthic)

Most specimens of this 'twilight zone' species are reported from the 70 m depth range (though have been collected as shallow as 45-55 m in the Lembeh Strait). The species do not appear to school or aggregate as with many congeners, but rather are found individually in small caves and crevices, frequently quite deep into the interstices of the reef and only visible using a strong underwater flashlight. Specimens collected were found exclusively on deep reefs sheltered from wave exposure but nonetheless exposed to currents, and although there was frequently significant silt build-up present in the caves in which they sheltered, water visibility was always good because of the significant water flow over the reefs (Ref. 96671).

Ciclo de vida ou comportamento de acasalamento Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas

Referência principal Upload your references | Referências | Coordenador | Colaboradores

Winterbottom, R., M.V. Erdmann and N.K. Dita Cahyani, 2014. Three new species of Trimma (Pisces; Gobioidei) from Indonesia. Zootaxa 3838(3):367-384. (Ref. 96671)

Status na Lista Vermelha da UICN (Ref. 120744)


CITES (Ref. 118484)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Ameaça para os humanos

  Harmless





Uso pelos humanos

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Estimates based on models

Preferred temperature (Ref. 115969): 26.7 - 29, mean 27.7 (based on 16 cells).
Índice de diversidade filogenética (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00418 - 0.01902), b=3.08 (2.91 - 3.25), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Resiliência (Ref. 120179):  Elevada, tempo mínimo de duplicação da população menor que 15 meses (Preliminary K or Fecundity.).
Vulnerabilidade (Ref. 59153):  Low vulnerability (10 of 100) .