Classification / Names
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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobionellinae
Etymology: Schismatogobius: Greek, schisma, -atos = crack, fissure + latin, gobius = gudgeon (Ref. 45335); tuimanua: Derived from the name of Tuimanu'a, the king of all the kings in the Samoan myth of creation, to honor Samoan people. A noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce démersal; profondeur 0 - 1 m (Ref. 116768). Subtropical
Oceania: endemic to Samoa and western Samoa.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 2.1 cm SL mâle / non sexé; (Ref. 116768)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 7; Rayons mous dorsaux (Total) : 9; Épines anales: 1; Rayons mous anaux: 9. Schismatogobius tuimanua is distinguished by the following characters: pectoral fin with 13-14 rays; pectoral fins banded with 4-5 rows of blackish bars; membrane in first dorsal fin posterior to spine 6 is not connected at base of spine in second dorsal fin; ventral surface of head and isthmus blackish, paler on chest and branchiostegals in female; and pelvic disc banded with usually two or three rows of black spots (Ref. 116768).
Occurs in streams with moderate flow in shallow areas of rocks and gravel (depth 0.4-0.6 m) just above tidal influence (Ref. 116768).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Keith, P., C. Lord and H.K. Larson, 2017. Review of Schismatogobius (Gobiidae) from Papua New Guinea to Samoa, with description of seven new species. / Revue de Schismatogobius (Gobiidae) de la Papouasie-Nouvelle-Guinée à Samoa, avec description de sept nouvelles espèces. Cybium 41(1):45-66. (Ref. 116768)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)
Menace pour l'homme
Harmless
Utilisations par l'homme
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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=0.00724 (0.00338 - 0.01553), b=3.05 (2.87 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).