Classification / Names
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Ovalentaria/misc (Various families in series Ovalentaria) >
Pomacentridae (Damselfishes) > Chrominae
Etymology: pacifica: Named for its native range, in the Pacific Ocean; noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina revassocierade; ej vandrande; djupintervall 5 - 56 m (Ref. 122787). Tropical; 31°N - 30°S
Pacific Ocean: Hawaiian Islands, Johnston Atoll, Line Islands, Pitcairn Island, Oeno Atoll, Gambier Islands, Tuamotu Archipelago, Society Islands, Austral Islands, Rapa, Cook Islands, Phoenix Islands, Fiji, Tonga, New Caledonia, Loyalty Islands, Chesterfield Islands, Vanuatu, Coral Sea islands and reefs, Marshall Islands, Chuuk, Pohnpei, Yap, Wake Island, Mariana Islands, and at the Ogasawara Islands and Bonin Islands of Japan.
Size / Vikt / Age
Maturity: Lm ? range ? - ? cm
Max length : 7.6 cm SL hane/ej könsbestämd; (Ref. 122787)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 12; Mjukstrålar i ryggfenan (totalt) : 12 - 14; Taggstrålar i analfenan: 2; Mjukstrålar i analfenan: 12 - 14; Ryggkotor: 26. This species is distinguished by the following set of characters: D XII,12-14 (usually XII,13); A II,12-14 (usually II,13); pectoral-fin rays 16-18 (usually 17); spiniform caudal-fin rays 2; tubed lateral-line scales 14-17 (usually 15-16); total gill rakers on first branchial arch 27-32; body depth 1.8-2.0 (mean 1.9) in SL. Colouration: in life overall yellowish brown, typically with lateral greyish to purplish stripes along scale rows; the dorsal and anal fins are brownish with dark-brown triangular marking posteriorly and caudal fin yellowish; pectoral fin with a prominent round, blackish spot covering the entire base and axil (Ref. 122787).
Benthopelagic (Ref. 58302). Feeds on planktons (Ref. 89972). Diurnal species (Ref. 54980; 113699). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205).
Allen, G.R. and M.V. Erdmann, 2020. Chromis pacifica, a new Pacific Ocean damselfish distinct from Indian Ocean Chromis agilis (Teleostei: Pomacentridae). J. Ocean Sci. Found. 35:102-117. (Ref. 122787)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fiskeri: saknar intresse; Akvarium: Kommersiell
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 24.6 - 28.8, mean 27.4 °C (based on 376 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.00944 - 0.04623), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.0 ±0.24 se; based on food items.
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
