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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: Tomiyamichthys: occurring on sand-rubble bottoms in the vicinity of coral reefs; emilyae: Named for Canadian diver Emily Irving, who accompanied and assisted the authors on numerous ichthyological expeditions and a dedicated supporter of marine conservation and exploration efforts worldwide.
Eponymy: Emily Irving is a Canadian diver, photographer and conservationist. [...] (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
marien demersaal; diepte 17 - 23 m (Ref. 121269). Tropical; 23°C - 25°C (Ref. 121269)
Western Pacific: Indonesia, North Sulawesi Province.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ? range ? - ? cm
Max length : 3.2 cm SL mannelijk / geslacht onbekend; (Ref. 121269); 4.4 cm SL (female)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 7; Dorsale zachte stralen (totaal) : 10; Anale stekels: 1; Anale zachte stralen: 10; Wervels: 26. This species is distinguished by the following characters: first dorsal fin enlarged and sail-like, no filamentous rays; dorsal fin bases are confluent; segmented dorsal-fin and anal-fin rays 10; pectoral-fin rays 15-17; caudal fin ovate, longer than head length, 2.5-3.0 in SL; gill opening extending forward to the level of middle of opercle; anterior nostril is sheathed in elongate, partially enclosed tube; scales are entirely cycloid, lateral scales 66-72, transverse scales 19-21; cephalic sensory-canal system including pores B’, C, D, E, F, G, M’, and O’. Body colour overall is brown with 10 or 11 poorly contrasted, darker-brown bars on lateral body; a dense patch of small white spots on dorsal surface of head; first dorsal fin orange or blue-grey with a mosaic of irregular, dark brown markings, while second dorsal fin is yellowish to brown with blue bands or rows of dark brown spots; anal, caudal, and pelvic fins dark brown with blue streaks (Ref. 121269).
Cross section: compressed.
The collection area is exposed to periodic strong currents and cool upwelled water with sea temperatures of 23-25°C at the time of collection in August 2019 . The specimens were observed on gradually sloping, sand-rubble bottoms, in pairs or solitary, in shared burrows with the brightly colored alpheid shrimp Alpheus randalli (Ref. 121269).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Allen, G.R., M.V. Erdmann and I.V. Utama, 2019. Tomiyamichthys emilyae, a new species of shrimpgoby (Gobiidae) from North Sulawesi, Indonesia. J. Ocean Sci. Found. 33:53-64. (Ref. 121269)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Visserij: van geen belang
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Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00347 - 0.01582), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.2 ±0.3 se; based on size and trophs of closest relatives
Weerstandsvermogen (Ref.
120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).
Kwetsbaarheid van de visserij (Ref.
59153): Low vulnerability (10 of 100).
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![Image of Tomiyamichthys emilyae (Emily\](/images/thumbnails/jpg/tn_Toemi_u0.jpg "Image of Tomiyamichthys emilyae (Emily\")
![Image of Tomiyamichthys emilyae (Emily\](/images/thumbnails/jpg/tn_Toemi_m0.jpg "Image of Tomiyamichthys emilyae (Emily\")
