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Pycnochromis hanui (Randall & Swerdloff, 1973)

Chocolate-dip Chromis
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Pycnochromis hanui
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Hawaii country information

Common names: [No common name]
Occurrence: endemic
Salinity: marine
Abundance: abundant (always seen in some numbers) | Ref: Lieske, E. and R. Myers, 1994
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from Hawai'i Island to Kure Atoll (Ref. 58302). Also in Ref. 122680.
National Checklist:
Country Information:
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Randall, J.E., 1985
National Database:

Common names from other countries

Classification / Names Κοινά ονόματα | Συνώνυμα | Catalog of Fishes(Γένος, Είδη) | ITIS | CoL | WoRMS | Cloffa

> Ovalentaria/misc (Various families in series Ovalentaria) > Pomacentridae (Damselfishes) > Chrominae
Etymology:   More on authors: Randall & Swerdloff.

Environment: milieu / climate zone / depth range / distribution range Οικολογία

Θαλασσινό(ά) Υφαλόφιλο(α); μη μεταναστευτικό(ά); εύρος βάθους 6 - 50 m (Ref. 7247).   Tropical; 28°N - 17°N

Κατανομή Χώρες | Περιοχές FAO | Οικοσυστήματα | Παρουσίες | Point map | Εισαγωγές | Faunafri

Eastern Central Pacific: confined to the Hawaiian Islands.

Μέγεθος / Βάρος / Age

Maturity: Lm ?  range ? - ? cm
Max length : 6.0 cm SL αρσενικό/απροσδιόριστο; (Ref. 7247)

Short description Κλείδες προσδιορισμού | Μορφολογία | Μορφομετρία

Ραχιαίες άκανθες (συνολικά) : 12; Μαλακές ραχιαίες ακτίνες (συνολικά) : 13; Εδρικές άκανθες: 2; Μαλακές εδρικές ακτίνες: 13 - 14. Body short, almost round. Color is brown with a black spot on the pectoral fin base. The caudal fin, caudal peduncle and the adjacent portion of the dorsal and anal fins white.

Βιολογία     Γλωσσάρι (π.χ. epibenthic)

Adults inhabit inshore and offshore coral reefs. They are found in aggregations above corals (Ref. 9710). Benthopelagic (Ref. 58302). 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 Maturities | Αναπαραγωγή | Spawnings | Egg(s) | Fecundities | Προνύμφες

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).

Main reference Upload your references | Αναφορές | Συντονιστής : Allen, Gerald R. | Συνεργάτες

Allen, G.R., 1991. Damselfishes of the world. Mergus Publishers, Melle, Germany. 271 p. (Ref. 7247)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 01 August 2021

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

αλιεία: Εμπορικό(ά); Ενυδρείο: Εμπορικό(ά)
FAO(Publication : search) | FishSource |

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Length-weight rel.
Length-length rel.
Length-frequencies
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Διαδικτυακές πηγές

Estimates based on models

Preferred temperature (Ref. 115969): 24.9 - 25.6, mean 25.3 (based on 35 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02089 (0.00940 - 0.04644), b=2.98 (2.80 - 3.16), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Τροφικό Επίπεδο (Ref. 69278):  3.0   ±0.2 se; based on size and trophs of closest relatives
Ελαστικότητα (Ref. 120179):  Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Price category (Ref. 80766):   Unknown.