Cook Islands Biodiversity Database

Species Page

Back to: «« Search Page | « Results Page

Add to My List

Caranx lugubris

Ru‘i

Black Jack

Multimedia & Additional Resources

Type	Description	Download
Image:	Adult (Rarotonga) Adult	30KB

General Information

COMMON NAMES: Black Jack, Black Trevally; German Schwarze Makrele; French Carangue Noir

TRADITIONAL NAMES: Ru‘i (RR MG AK PL), Rui (AT), Pipi Ru‘i < Ru‘i < Pa‘o Ru‘i < Ru‘i Urua (MK), Ru‘i / Ru‘i Pepe < Ru‘i < Ru‘i Paka < Ru‘i Pa‘o (MT), Luhi / Manini < Katonga < Matase (TS), Ruhi / Manini < Katonga < Matase (TW), Lui / Lui Laupuapua < Lui < Tawauli (PK); Other Polynesian - Ruhi (TAH), Umi (MQA)

GLOBAL DISTRIBUTION: NATIVE circumtropical, incl. e.Africa - Marquesas; n. to s.Japan; s. to New Caledonia

COOK ISLANDS STATUS: Native; PLUS: Both Groups. Common in N.Group, occassional in S.Group. Outer slope below 50m. Spear, trolling & rod.; Marine, near-shore, reef-slope and seamounts, 10-350m

KEY FEATURES: To 90cm SL, depth 2.5 in SL. Distinctive flat or concave face with high forehead. Uniformly dull grey to black; small black spot on gill cover; scutes ~black; fins dark grey to black; Anal with white margin; tail black posteriorly and pale anteriorly. Breast completely scaled. GENUS FEATURES see Bluefin Trevally (Caranx melampygus).

Cook Islands Distribution

View Distribution Map

Southern Group: Present Makatea:
RR	MG	AT	MK	MT	AK	PL	TK	MN
P	P	^^P	^^P			P

Northern Group: Present
TN	MH	RK	PK	NS	SW
++	P		P		+++

Key to Symbols

blank	no data
-	absent	L	localised
X	extinct 'naturally'	W	widespread
XQi	quarantine intercepted	R	recent
XQe	eradicated	?	query preceding category
P	present	T?	taxonomic query
S	seasonal	nn	present, said to have no name
O	occasional	?1	present, name not investigated
++++	very common	?2	presence not verified, no name recorded
+++	common	N/A	absent, name not expected
++	uncommon
+	rare
Cook Islands islands: RR =Rarotonga, MG = Mangaia, AT =‘Ātiu, MK=Ma‘uke, MT=Miti‘āro, AK=Aitutaki, PL=Palmerston, PN=Penrhyn, MN=Manuae, TK=Takūtea, TN=Tongareva (TS=Tongaleva Spoken, TW=Tongareva Written, they say "el" but write "r"), MH=Manihiki, RK=Rakahanga, PK=Pukapuka, NS=Nassau, SW=Suwarrow. After a Polynesian name: ^=orthography query. Countries and other: FIJ=Fiji, WT=Wallis & Futuna, SAM=Samoa, TON=Tonga, NIU=Niue, CK=Cook Islands, CKM=Cook Islands Māori, FP=French Polynesia, AUS=Australs, SOC=Societies, TAH=Tahiti, TUA=Tuamotus, MQS=Marquesas, MNG=Mangareva, PIT=Pitcain group, EAS=Easter Island, HAW=Hawai‘i, NZ=New Zealand, NZM=New Zealand Māori

Scientific Taxonomy

Caranx lugubris Poey, 1860
TAXONOMY: ANIMALIA; CHORDATA; GNATHOSTOMATA (Jawed Vertebrates); PISCES; OSTEICHTHYES; Perciformes; Percoidei; Percoidea; CARANGIDAE, Caranginae

Vouchers & References

Vouchers:
Rarotonga: field ID Sims (Sims88). Atiu: field-specimen, College collection, 10/2000, ID GMcC. Mauke: field-specimen, College coll., 3/2001, ID GMcC. Palmerston: reported (Preston95). Tongareva: field ID Sims (Sims88). Manihiki: field ID Sims (Sims88). Pukapuka: 2xfieldspecimens+photo, 1/2004, 100fathoms dropline, Marurai Marurai, Vigo Jnr. Vigo, and Casper Vigo, ID GMcC. Suwarrow: Photo11 (G&S85).

References:
text p.131 Myers (1991 2nd Ed.) Fishes of Micronesia
plate 46b Myers (1991 2nd Ed.) Fishes of Micronesia
p.161 Randall et al. (1990) Fishes of the Great Barrier Reef....
p.247 Burgess et al. (1988) Atlas of Marine Aquarium Fishes (TFH)
plate 155-01 Lieske & Myers (1996) Coral Reef Fishes
plate 38-02 Allen (1997) Marine Fishes of Tropical Australia....

Data Update History (information):
zTX, zB02, zM02, zupMX05a, zM06a, zD02

Web Resources

Citation Information

McCormack, Gerald (2007) Cook Islands Biodiversity Database, Version 2007.2. Cook Islands Natural Heritage Trust, Rarotonga. Online at http://cookislands.bishopmuseum.org.
Please refer to our use policy.

Biodiversity Database: More Options | Help

My List: View List | Edit List | Clear List