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Acanthuriformes (Surgeonfishes) >
Lobotidae (Tripletails)
Etymology: Hapalogenys: Greek, hapalos = soft * Greek, geny, -yos = face (Ref. 45335); merguiensis: Named for its type locality, Mergui Basin, southern Myanmar Sea..
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino; distribuzione batimetrica 78 - 180 m (Ref. 36944). Tropical
Eastern Indian Ocean: known only from the Andaman Sea, off southern Myanmar, including Mergui Basin and Taninthayi Coast, and off Phuket, west coast of Thailand. Possibly occurring in the Andaman and Nicobar islands, Bay of Bengal and Straits of Malacca.
Size / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 17.9 cm SL maschio/sesso non determinato; (Ref. 36944); 24.2 cm SL (female)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 6; Raggi dorsali molli (totale) : 14; Spine anali: 3; Raggi anali molli: 9 - 10; Vertebre: 24. Head and body generally dark brownish when fresh. Two indistinct oblique dark bands on body, the first descending from the nape to behind the pectoral fin; the second from base of anterior 2nd or 3rd dorsal fin spines and soft dorsal fin base, curving backward thru the lateral line to soft anal fin and caudal peduncle. Maxillary scales absent. Eye diameter greater than one quarter of the head length. Ten pores on and behind the chin; often with slitlike pores posteriorly. Fleshy lower lip with a cluster of very short dense papillae. At the origin of the dorsal fin is a procumbent spinelike process (exposed tip of first pterygiophore) (Ref. 36944).
Occurs over rocky bottom.
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve
Iwatsuki, Y., U. Satapoomin and K. Amaoka, 2000. New species: Hapalogenys merguiensis (Teleostei; Perciformes) from Andaman Sea. Copeia 2000(1):129-139. (Ref. 36944)
IUCN Red List Status (Ref. 130435)
Human uses
Strumenti
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 17.6 - 23.2, mean 21.7 °C (based on 14 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01862 (0.00830 - 0.04177), b=3.01 (2.81 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.9 ±0.6 se; based on size and trophs of closest relatives
Resilienza (Ref.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (20 of 100).
