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Overview

Comprehensive Description

Biology

Shallow coastal to outer reef flats and slopes to 45 m depth (Ref. 48636). Common inhabitant of coral reefs, typically resting at the bases of coral heads (Ref. 9710). Studies indicate that it is haremic and spawns nightly (Ref. 37816). Occasionally in pairs (Ref. 48636). Sometimes solitary (Ref 90102).
  • Randall, J.E., G.R. Allen and R.C. Steene 1990 Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)
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Distribution

Indo-Pacific: Maldives (Ref. 2334) to Samoa, north to the Ryukyu Islands, south to the southern Great Barrier Reef and New Caledonia.
  • Myers, R.F. 1991 Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
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Western Pacific.
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Physical Description

Morphology

Dorsal spines (total): 10; Dorsal soft rays (total): 12; Analspines: 3; Analsoft rays: 6
  • Myers, R.F. 1991 Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
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Size

Maximum size: 70 mm TL
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Max. size

7.0 cm TL (male/unsexed; (Ref. 2334))
  • Randall, J.E., G.R. Allen and R.C. Steene 1990 Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)
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Diagnostic Description

Numerous short filaments at the tip of each dorsal spine. Thickened and elongate lower pectoral rays.Description: Characterized by white color with reddish brown saddles tapered ventrally; rear half of body with vertical rows of red-brown blotches; under eye with pair of reddish bars; dorsal and caudal fin spotted; presence of palatine teeth; coarsely serrate posterior margin of preopercle; greatest depth of body 2.9-3.4 in SL (Ref. 90102).
  • Myers, R.F. 1991 Micronesian reef fishes. Second Ed. Coral Graphics, Barrigada, Guam. 298 p. (Ref. 1602)
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Description

Common inhabitant of coral reefs, typically resting at the bases of coral heads.
  • Anon. (1996). FishBase 96 [CD-ROM]. ICLARM: Los Baños, Philippines. 1 cd-rom pp.
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Type Information

Paratype for Cirrhitichthys falco
Catalog Number: USNM 195954
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1937
Locality: Philippines, Mindanao, Gulf of Davao, Mindanao, Philippines, Pacific
  • Paratype:
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Paratype for Cirrhitichthys falco
Catalog Number: USNM 195944
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): S. Tinker
Year Collected: 1950
Locality: Hawaii; Oahu, Pearl Harbor, From a Drydock Hauled Up 1 Yr Ago From Guam, Marianas., Oahu, Hawaii, United States, Hawaiian Islands, Pacific
  • Paratype: Randall, J. E. 1963. Proceedings of the United States National Museum. 114 (3472): 432, fig. 27.
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Holotype for Cirrhitichthys falco
Catalog Number: USNM 195943
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): S. Tinker
Year Collected: 1950
Locality: Hawaii; Oahu, Pearl Harbor, From a Drydock Hauled Up 1 Yr Ago From Guam, Marianas., Oahu, Hawaii, United States, Hawaiian Islands, Pacific
  • Holotype: Randall, J. E. 1963. Proceedings of the United States National Museum. 114 (3472): 432, fig. 27.
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Ecology

Habitat

Environment

reef-associated; marine; depth range 4 - 46 m (Ref. 9710), usually 10 - 20 m (Ref. 27115)
  • Baensch, H.A. and H. Debelius 1997 Meerwasser atlas. Mergus Verlag GmbH, Postfach 86, 49302, Melle, Germany. 1216 p. 3rd edition. (Ref. 27115)
  • Lieske, E. and R. Myers 1994 Collins Pocket Guide. Coral reef fishes. Indo-Pacific & Caribbean including the Red Sea. Haper Collins Publishers, 400 p. (Ref. 9710)
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Depth range based on 79 specimens in 1 taxon.
Water temperature and chemistry ranges based on 28 samples.

Environmental ranges
  Depth range (m): 0.3 - 73
  Temperature range (°C): 24.353 - 29.266
  Nitrate (umol/L): 0.016 - 3.456
  Salinity (PPS): 34.336 - 35.481
  Oxygen (ml/l): 4.138 - 4.814
  Phosphate (umol/l): 0.070 - 0.391
  Silicate (umol/l): 0.803 - 4.989

Graphical representation

Depth range (m): 0.3 - 73

Temperature range (°C): 24.353 - 29.266

Nitrate (umol/L): 0.016 - 3.456

Salinity (PPS): 34.336 - 35.481

Oxygen (ml/l): 4.138 - 4.814

Phosphate (umol/l): 0.070 - 0.391

Silicate (umol/l): 0.803 - 4.989
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 4 - 46m.
From 4 to 46 meters.

Habitat: reef-associated. Common inhabitant of coral reefs, typically resting at the bases of coral heads.
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Trophic Strategy

Occurs inshore (Ref. 75154).
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Life History and Behavior

Life Cycle

Pelagic spawner (Ref. 31569). Spawning ascents into the water column occurred over a distance of 0.2 to 0.6 m (Ref. 54536).
  • Sadovy, Y. and T.J. Donaldson 1995 Sexual pattern of Neocirrhites armatus (Cirrhitidae) with notes on other hawkfish species. Environ. Biol. Fish. 42(2):143-150. (Ref. 31569)
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Cirrhitichthys falco

The following is a representative barcode sequence, the centroid of all available sequences for this species.


There are 7 barcode sequences available from BOLD and GenBank.

Below is a sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.

See the BOLD taxonomy browser for more complete information about this specimen and other sequences.

CCTTTATCTNGTATTTGGTGCTTGAGCTGGAATAGTCGGCACAGCCCTCAGCCTACTCATTCGAGCGGAACTTAGCCAACCCGGCGCTCTTCTAGGGGATGACCAGATTTATAACGTAATCGTTACAGCCCACGCCTTTGTAATGATTTTCTTTATGGTTATACCAATCATGATTGGTGGCTTTGGTAACTGACTGATTCCTCTAATGATTGGGGCCCCCGACATGGCGTTCCCCCGAATGAACAACATAAGCTTCTGACTTCTTCCCCCCTCATTCCTATTACTTCTAGCCTCCTCTGGGGTTGAAGCAGGGGCAGGAACAGGATGAACGGTATATCCCCCACTGGCAGGCAACCTCGCCCATGCGGGAGCATCGGTAGACCTAACTATTTTCTCTCTCCACCTTGCTGGGATTTCTTCAATTCTAGGGGCCATCAATTTTATTACGACCATCATTAACATGAAACCCCCCTCTATTTCTCAGTACCAAACCCCCCTATTTGTATGAGCTGTCCTTATTACAGCCGTTCTCCTTCTCCTCTCTCTTCCAGTTCTTGCAGCTGGCATTACAATGCTGCTAACAGACCGGAATCTAAACACAACCTTCTTTGACCCGGCAGGAGGGGGAGACCCAATTCTTTACCAACACTTA
-- end --

Download FASTA File

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Statistics of barcoding coverage: Cirrhitichthys falco

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 7
Specimens with Barcodes: 13
Species With Barcodes: 1
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Conservation

Threats

Not Evaluated
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: of no interest; aquarium: commercial
  • Randall, J.E., G.R. Allen and R.C. Steene 1990 Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)
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Wikipedia

Dwarf hawkfish

The dwarf hawkfish, Cirrhitichthys falco, is a small species of hawkfish found on tropical reefs in the Indo-Pacific region from the Maldives to the Caroline Islands and Samoa. It can sometimes be found in the aquarium trade.[1]

Description[edit]

The dwarf hawkfish can reach 7 cm (2.8 in) in total length. The dorsal fin has ten spines with numerous tassels on the tips of the spines. The anal fin has three spines and six soft rays. The pectoral fins are thick and elongated and spread out when the fish is resting on the substrate. This fish is pinkish-red and white in color with vertical banding or mottling.[1]

Distribution and habitat[edit]

The dwarf hawkfish is native to the tropical Indo-Pacific. Its range extends from the eastern coast of Africa and the Maldives to Samoa, the Ryukyu Islands, northern Australia, the Great Barrier Reef and New Caledonia. It is a common member of the reef community on outer reef slopes and flats and is found at depths down to about 45 m (148 ft).[1]

Behavior[edit]

The dwarf hawkfish typically rests at the bottom of massive corals. It usually occurs singly but may be in pairs and feeds on fish larvae, small crustaceans and other invertebrates on the seabed.[1]

Like many fish, this species can change sex. A dominant male keeps a harem of several females. If a harem becomes too large, one of the females may become a male and take on part of the harem as a dominant male. What makes this species unusual is that the new male may revert to the female sex if challenged by a more powerful male. A male can become a female and successfully breed, laying fertile eggs.[2]

References[edit]

  1. ^ a b c d "Cirrhitichthys falco Randall, 1963: Dwarf halkfish". FishBase. Retrieved 2013-12-26. 
  2. ^ Whyte, C. Transgender fish perform reverse sex flip. New Scientist January 6, 2012.
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