Coryphaena hippurus CORHIP-091194-BRIKAR-001

This entry was posted on Sunday, September 11th, 1994 and is filed under Dolphinfishes, Spawning Reports.

The Breeder’s Registry© Information contained in this report is taken from submitted  observations from aquarist unless noted otherwise (see comments). Information may be reproduced providing the Breeder’s Registry is cited.

Breeder ID: CORHIP-091194-BRIKAR-001

Date received: 9/11/94

Identification: Coryphaena hippurus (Linnaeus 1758 )

Geographic origin: Pacific  

Taxonomy: (after I.C.Z.N.)

Kingdom Animalia

Phylum Chordata

Subphylum Vertebrata

Class Osteichthyes Subclass Actinopterygii Infraclass Teleostei

Superorder Acanthopterygii Order Perciformes Suborder Perciformes

Family Coryphaenidae

Genus Coryphaena (Linnaeus 1758 )

Species hippurus (Linnaeus 1758 )

Description: Food fish, circumtropical , size to 150 cm.

Vernacular name Dolphinfish  

Duration male(yr): 7.0

Size male (kg): 77

Duration female(yr): 7.0

Size female (kg): varies

Broodstock notes: Have gone through 7 generations and started over with wild broodstock several times. Present broodstock are second (F2) generation and 8 months old.

Physical differences: Males have a more square shaped head.

Adult diet: Squid and “home-made” vitamin bars. Fed once per day

Pre-spawning activity: Fish become dark in color and circle each other

Time spawning began: 1700 hours

Area spawning occurred: open water column

Frequency of spawning: every other day

Egg description: buoyant eggs

Approximate quantity: ~ 300,000

Size: not indicated

Incubation period: 48 hours

Time hatching occurred: night

Size of hatching larvae: 4.2 mm

Yolk sac present? Yes

Newly hatched appearance: Eyes not pigmented and no mouth formed at hatching. Phototaxic

Transfer / removal method: Netted out of tank next morning and placed in 185 liter barrel  

Spawning tank size (liter): 3,700,000, depth up to 6 meters

Sides of tank covered? Yes, blue

Lighting & photo period: natural, filtered through fiberglass panels

Filtration: open system

Additives and dosages: none

Water temperature (F): 79

Fry development / changes: not indicated

First food offered: rotifers, minimum density 2 / ml. Feeding is continual

Second food offered: copepods, Artemia at day 8 – 10

Survival: varies, fairly good survival rates after larvae settle out of water column.

Development description: metamorphosis 3 – 4 weeks.

Rearing tank size (liter): varies. Same water system as main tank

Comments: Organisms are maintained in a display tank at Waikiki Aquarium, Hawaii.

Original description: Originally described by Carolus Linnaeus in 1758 in Systema Naturae, ed. 10 v. 1 hippurus, as Coryphaena from  specimens collected in open seas. Misspelled hippuris by Schopf . Validated by Tortonese 1973, Dor 1984, Smith 1986, Tortonese 1990, Allen & Robertson 1994. Described by Rafinesque 1810, as Lepimphis hippuroides, in Caratteri; ref. .Palermo, Sicily, and as Coryphena hippuroides. Synonym of Coryphaena hippurus, Linnaeus 1758.

Word origin: The genus Coryphaena is from the Greek root coryph, =a, meaning the head or top; two derivations exist: the Latin root aene meaning bronze or bronze colored; and the Greek root aeno meaning terrible. Thus the genus could mean terrible head or bronze colored head, both of which could be attributable, but the Greek root being the more likely since the first syllable is based on a Greek root. The species hippurus seems derived from the Greek root hipp, -e, -o, =us, meaning a horse.

About this report: Information contained in this report is taken from submitted observations. Taxonomy, Synonomy, Original description , Word origin and Suggested reading are provided by member(s) of The Breeder’s Registry staff. Information is presented under the belief that it is accurate. If you have information in addition to, or contrary to that presented you are encouraged to contact the Breeder’s Registry. Permission is granted for “one-time” personal use. Reproduction as distributed or accessible media is prohibited without prior written permission. All rights reserved. 1994

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