Klassifizierung / Names
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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: Grallenia: Named for Gerald R. Allen, (G+R+Allen+suffix '-ia'), in honor of his great contribution to our knowledge of the diversity of coral-reef fishes; arenicola: Named for its sandy-bottom dwelling habit; Latin 'arena for sand and 'colo' for 'I inhait'.
Eponymy: Dr Gerald Ray Allen (d: 1942) The genus was named to honour “…his great contribution to our knowledge of the diversity of coral-reef fishes.” (See Allen, GR) (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ökologie
seewasser riff-verbunden; tiefenbereich 10 - 50 m (Ref. 75132). Tropical
Verbreitung
Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri
North Pacific: Japan.
Size / Gewicht / Alter
Maturity: Lm ? range ? - ? cm
Max length : 1.9 cm SL Männchen/unbestimmt; (Ref. 75132); 2.3 cm SL (female)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenstacheln (insgesamt) : 7; Rückenflossenweichstrahlen (insgesamt) : 7 - 8; Afterflossenstacheln: 1; Afterflossenweichstrahlen: 7 - 8; Wirbelzahl: 27 - 28. This species is characterized by the following: second dorsal-fin rays I, 7-8 (usually I, 7); anal-fin rays I, 7-8 (usually I, 7); vertebrae 10+17-18=27 (usually 10+17=27); dorsal-fin spines not elongated in either sex; second dorsal fin does not reach the caudal-fin base when adpressed, length of longest ray 14.0-17.6% of SL; length of longest ray of anal fin 8.9-13.3% of SL; scales on body extending anteriorly to just behind pectoral-fin base; weak, low pelvic frenum; length of pectoral fin 20.7-25.9% of SL; caudal-peduncle length 24.6-28.6% of SL;
cephalic sensory canals with pores C' (unpaired), D (unpaired), E and F'; orange line absent on dorsal fins (Ref. 75132).
Found to be solitary on sandy bottom, around boulders or rocky reefs (Ref. 75132).
Life cycle and mating behavior
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven
Shibukawa, K. and A. Iwata, 2007. Grallenia, a new goby genus from the western Pacific, with descriptions of two new species (Perciformes: Gobiidae: Gobiinae). Bull. Natl. Mus. Nat. Sci., Ser. A, Suppl. 1:123-136. (Ref. 75132)
IUCN Rote Liste Status (Ref. 130435: Version 2024-1)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00339 - 0.01546), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref.
120179): hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
