Common names from other countries
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Acropomatiformes (Oceanic basses) >
Symphysanodontidae (Slopefishes)
Etymology: Symphysanodon: Greek, syn, symphysis = grown together + Greek, physis = growth body form + Greek, odous = teeth; related to few teeth which are located over the area where the two jaws meet (Ref. 45335); rhax: Name rhax (berry or grape) is from the Greek and is an allusion to the similarity of this new species to S. berryi. The new name is a feminine noun in apposition to Symphysanodon..
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien; diepte ? - 218 m (Ref. 54833). Tropical
Western Indian Ocean: known only off the Maldive Islands.
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 14.4 cm SL mannelijk / geslacht onbekend; (Ref. 54833)
Korte beschrijving
Morfologie | Morfometrie
Dorsale stekels (totaal): 9; Dorsale zachte stralen (totaal): 10; Anale stekels 3; Anale zachte stralen: 7; Wervels: 25. This species is separable from all other species of the genus, except S. berryi, by the following combination of characters: segmented rays in anal fin 7, tubed lateral-line scales 50, total gillrakers on first gill arch 35-38 (10 or 11 + 25-27), sum of lateral-line scales and gillrakers on individual specimens 85-88, depth of body 20.6-24.8% SL (4.0-4.9 times in SL), length of depressed anal fin 21.8-23.9 % SL, length of anal-fin base 12.6-14.8% SL, length of first anal-fin spine 3.0-4.8% SL, hypurals 1 & 2 autogenous, hypurals 3 & 4 represented by a single plate, and first caudal vertebra without parapophyses. It can be separated from the Atlantic species S. berryi by a number of morphometric characters. It also differs slightly from S. berryi in counts of pectoral-fin rays (17 or18, mean = 17.33, for S. rhax
vs. 16-18, mean = 16.99, for S. berryi).
Depth of capture, 218 m, is available for only one collection.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Anderson, W.D. and V.G. Springer, 2005. Review of the perciform fish genus Symphysanodon Bleeker (Symphysanodontidae), with descriptions of three new species, S. mona, S. parini, and S. rhax. Zootaxa 996(1):1-44. (Ref. 54833)
Status op de Rode Lijst van het IUCN (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Gevaar voor de mens
Harmless
Gebruik door de mens
Meer informatie
Lokale namenSynoniemenMetabolismePredatorenEcotoxicologieVoortplantingMaturiteitPaaienFecunditeitEierenOntwikkeling van de eieren
Leeftijd/GrootteGroeiLengte-gewichtLengte-lengteLengtefrequentiesMorfometrieMorfologieLarvenLarvale populatiedynamiekRekruteringAbundantie
ReferentiesAquacultuurAquacultuurprofielKweeklijnenGeneticaElectrophoresesErfelijkheidZiektesVerwerkingMassaconversie
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Estimates based on models
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 0.5004 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).