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Kurtiformes (Nurseryfishes, cardinalfishes.) >
Apogonidae (Cardinalfishes) > Apogoninae
Etymology: umbratilis: Name from a Latin word meaning 'of the shade', retired or private, referring to the
observed cryptic behavior..
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin; profondeur 20 - 60 m (Ref. 90102). Tropical
East Indian to Western Pacific: Western Australia, Indonesia, Brunei and Palau.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 4.1 cm SL mâle / non sexé; (Ref. 83499)
Description synthétique
Morphologie | Morphométrie
Épines dorsales (Total): 8; Rayons mous dorsaux (Total): 9-10; Épines anales 2; Rayons mous anaux: 8 - 9. This species is characterized by having a blackish spot on the first-dorsal fin; 5 brownish bars on body and caudal peduncle; broad faint cheek mark; high postocular darkish spot; 14 pectoral-fin rays with a tiny to small darkish spot above the axil (Ref. 83499).
This species is usually found solitary or in pairs at about 10-40 meters. It also displays a cryptic behavior, at least during daylight hours, sheltering between rocks and rubble. It has not been observed free swimming, but only when flushed from its lair with the use of clove-oil or rotenone. Specimens collected were living in a rubble field in sheltered waters at the base of a small islet or were found under rock slabs on a submerged patch reef (several km from shore) with abundant sponges and gorgonians and minimal hard corals. Some specimens were also collected from a flat sand and shell bottom with abundant Gonipora, some Fungia and considerable macroalgae (Ref. 83499)..
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Mouthbrooders. Distinct pairing during courtship and spawning (Ref. 205).
Fraser, T.H. and G.R. Allen, 2010. Cardinalfish of the genus Apogonichthyoides Smith, 1949 (Apogonidae) with a description of a new species from the West-Pacific region. Zootaxa 2348:40-56. (Ref. 83499)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Plus d'informations
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Estimates based on models
Preferred temperature (Ref.
123201): 24.3 - 28.5, mean 27.6 °C (based on 221 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00690 - 0.03171), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
