Classification / Names
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Gobiiformes (Gobies) >
Oxudercidae (Mudskippers) > Periophthalminae
Etymology: Periophthalmus: Greek, peri = around + Greek, ophthalmos = eye (Ref. 45335); darwini: Named for the naturalist Charles Darwin, after whom Darwin Harbour (where the holotype was collected), was named..
More on authors: Larson & Takita.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten; brackvatten bottenlevande. Tropical
Oceania: Australia in Northern Territory and Western Australia.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.6 cm SL hane/ej könsbestämd; (Ref. 76839)
Short description
Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt): 5 - 7; Mjukstrålar i ryggfenan (totalt): 10-12; Taggstrålar i analfenan 1; Mjukstrålar i analfenan: 11 - 13. Can be distinguished by the following characters: body depth at anal fin origin 10.6-14.6% of SL, mean 12.7%; unique among Periophthalmus species in having a greatly reduced first dorsal fin (depressed dorsal 5.1-9.6% of SL) in both sexes, and usually with only five spines, fin widely separated from second dorsal fin origin; pelvic fins united for half their length,
distinct fraenum present, posterior tips of fins pointed to bluntly pointed, fifth ray bifurcating close to base and branching about 9 times; first dorsal fin plain blackish except for slightly paler base and narrow whitish margin; second dorsal fin translucent with broad submarginal black band and a row of black spots or blotches along fin base; no melanophores on anal
fin; pelvic fins whitish or with some fine speckling; orange spots may be present on lower side of head and body when live; second dorsal fin rays modally I,11; anal fin rays modally I,12; pectoral rays 11-13; caudal fin rays usually only with ventralmost 6-7 rays branched, dorsalmost 8-9 rays rarely branched; lateral scales 58-78; predorsal scales usually 24-25 (Ref. 76839).
Facultative air-breathing (Ref. 126274)
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Larson, H.K. and T. Takita, 2004. Two new species of Periophthalmus (Teleostei: Gobiidae: Oxudercinae) from northern Australia, and a re-diagnosis of Periophthalmus novaeguineaensis. The Beagle (Rec. Mus. Art Galleries N. Terr.) 20:x-x. (Ref. 76839)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Ytterligare information
PopulärnamnsynonymerMetabolikPredatorerEkotoxikologiReproduktionKönsmognadLekSpawning aggregationFecundityÄggEgg development
Age/SizeTillväxtLength-weightLength-lengthLength-frequenciesMorfometriMorfologiLarverLarvdynamikRekryteringAbundansBRUVS
referenserVattenbrukVattenbruksprofilAvelslinjerGenetikElectrophoresesÄrftlighetSjukdomarBehandlingNutrientsMass conversion
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00495 - 0.02318), b=2.97 (2.79 - 3.15), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
![Image of Periophthalmus darwini (Darwin\](/images/thumbnails/jpg/tn_Pedar_f0.jpg "Image of Periophthalmus darwini (Darwin\")
