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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Sicydiinae
Etymology: Stiphodon: Greek, stiphos, -eos, -oys = mass + Greek, odous = teeth (Ref. 45335).
Eponymy: The binomial is a combination of the Latin words imperator (emperor) and orientis (of the east). This is a reference to Emperor Akihito of Japan (See Akihito). (Ref. 128868), visit book page.
Environment: milieu / climate zone / kisaran kedalaman / distribution range
Ekologi
laut; air tawar; payau bentopelagis; amphidromus. Subtropical
Asia: southern Japan and the mainland of South China, and probably appears in eastern Taiwan.
Size / Weight / umur
Kematangan: Lm ? range ? - ? cm
Max length : 5.0 cm SL jantan/; (Ref. 28731); 5.2 cm SL (female)
deskripsi pendek
Kunci identifiaksi (pengenalan) | Morfologi | Morfometrik
Duri punggung (Keseluruhan (total)) : 7; duri punggung lunak (Keseluruhan (total)) : 9 - 10; Duri dubur: 1; Sirip dubur lunak: 10. This species is a large-sized Stiphodon with the pectoral fin spotted and sexual dimorphism obvious. Mature male with body grey or dark with iridescent blue/ green/ purple lateral bars (depending on viewing angle), snout and cheek iridescent blue/ green/ purple, first dorsal fin elongated and triangular, second dorsal fin with obvious spots (spots on first dorsal fin not obvious) and the female with two obvious transverse stripes on the body (Ref. 28731, 43239).
Body shape (shape guide): elongated.
Prefers to inhabit areas of boulders with a rock and gravel bottoms in clear streams (Ref. 28731) and mainly feed on epiphyte and biofilm on rocks in the wild. Due to its amphidromous nature, as known to occur with its congeners (adults live and breed in freshwater streams; larvae hatched drift downstream and develop in marine environments; juveniles return to freshwater streams), blockage of the migration pathway (e.g. construction of dam or culvert in streams) would cause a significant impact on this species. Ensuring no net loss of habitat, keeping the natural stream flow and maintaining the stream-ocean corridor are all essential for preserving this species (based on researches on its congeners; see Ref. 82683, 82684, 82685, 82689, 82690, 82692). Collection conducted by aquarium hobbyists (both private and commercial) also poses a serious threat to Stiphodon species in some regions (Ref. 82684) and this kind of activity should be strictly controlled (Ref. 82694).
Life cycle and mating behavior
Kematangan | Reproduksi, perkembang biakan | Pemijahan | telur-telur | Fecundity | Larva
Watson, R.E and I.-S. Chen, 1998. Freshwater gobies of the genus Stiphodon from Japan and Taiwan (Teleostei: Gobiidae: Sicydiini). aqua, J. Ichthyol. Aquat. Biol. 3(2):55-66. (Ref. 28731)
Status IUCN Red List (Ref. 130435: Version 2025-1)
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: tidak ada kepentingan
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Phylogenetic diversity index (Acuan
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Daya lenting (Acuan
120179): Tinggi, Waktu penggandaan populasi minimum kurang dari 15 bulan (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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