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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: nannai: Named after the Sumerian moon god, Sin, who had several names corresponding to its different phases; the name 'Nanna' represented the full moon, in allusion to the moon-like lateral spots on the body.
Eponymy: Professor Cornelius Jan van der Horst (1889–1951) was a Dutch zoologist who moved to South Africa (1928) and became Head of the Zoology Department, Witwatersrand University, Johannesburg. [...] This refers to the Sumerian moon god Sin, who had several different names corresponding to phases of the moon; the name ‘Nanna’ represented the full moon, referring to moon-like lateral spots on this goby. (Ref. 128868), visit book page.
More on authors: Winterbottom, Iwata & Kozawa.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina bottenlevande; djupintervall 5 - 20 m (Ref. 90102). Tropical
Western Pacific: Palau and the Philippines.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 3.3 cm SL hane/ej könsbestämd; (Ref. 53948); 3.0 cm SL (female)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 7; Mjukstrålar i ryggfenan (totalt) : 11; Taggstrålar i analfenan: 1; Mjukstrålar i analfenan: 11; Ryggkotor: 26. This species is distinguished by the following characters: shares with Vanderhorstia papillo the elongated 5" (upper lobe) and 9" (lower lobe) branched caudal fin rays; differs from V. papillo in having more lateral scales (41-45 vs. 27); no scales in the predorsal midline (vs. 11); a unique color pattern (off-white background with large yellow spots along the midlateral body vs. such spots absent, and absence of four dark gray brown saddles on body vs. present); adults with both third and fourth dorsal spines elongate; more lower gill rakers on the first arch (16-17 vs. 10); fewer pseudobranch filaments (6-7 vs. 9); a single papilla in row c on the cheek (vs. 4) and row b not interrupted (vs. in two sections) (Ref. 53948).
Body shape (shape guide): elongated; Cross section: compressed.
Based on a photo taken from the Philippines, it is reasonable to assume that it is associated with burrows made and occupied by alphaeid shrimps (albeit no visible evidence of the shrimp in the image), as is the case in all it congeners for which information is available (Ref. 53948). Found in sand-rubble bottoms in 5-20 m (Ref 90102).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Winterbottom, R., A. Iwata and T. Kozawa, 2005. Vanderhorstia nannai, a new species of burrow-associated goby from Palau and the Philippines (Pisces: Gobiidae). aqua, J. Ichthyol. Aquat. Biol. 9(3):109-114. (Ref. 53948)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00741 (0.00346 - 0.01589), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.1 ±0.3 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |