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Overview

Comprehensive Description

Biology

Hides during the day and venture out at night to feed, tending to occur along steep drop-offs near caves on dark, moonless nights. Feeds on zooplankton. The large, deep water form is occasionally collected by fishing at depths of 200 to 400 m. Caught with cast nets in shallow waters of the Philippines.
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Distribution

Pacific Ocean: Philippines and Indonesia to the Tuamoto Islands, north to southern Japan, south to the Great Barrier Reef.
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Indo-West Pacific.
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Physical Description

Morphology

Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 14; Analspines: 2; Analsoft rays: 9 - 11
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Size

Maximum size: 350 mm NG
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Max. size

35.0 cm TL (male/unsexed; (Ref. 9710))
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Ecology

Habitat

Environment

reef-associated; marine; depth range 2 - 400 m (Ref. 1602)
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Depth range based on 4 specimens in 1 taxon.
Water temperature and chemistry ranges based on 2 samples.

Environmental ranges
  Depth range (m): 6 - 280
  Temperature range (°C): 17.969 - 27.219
  Nitrate (umol/L): 0.263 - 5.251
  Salinity (PPS): 34.289 - 35.557
  Oxygen (ml/l): 4.418 - 4.558
  Phosphate (umol/l): 0.225 - 0.505
  Silicate (umol/l): 2.657 - 3.898

Graphical representation

Depth range (m): 6 - 280

Temperature range (°C): 17.969 - 27.219

Nitrate (umol/L): 0.263 - 5.251

Salinity (PPS): 34.289 - 35.557

Oxygen (ml/l): 4.418 - 4.558

Phosphate (umol/l): 0.225 - 0.505

Silicate (umol/l): 2.657 - 3.898
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Depth: 2 - 400m.
From 2 to 400 meters.

Habitat: reef-associated.
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Trophic Strategy

Found in inshore waters (Ref. 75154). Hides during the day and venture out at night to feed, tending to occur along steep drop-offs near caves on dark, moonless nights. Feeds on zooplankton (Ref. 5004).
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Diseases and Parasites

Deretrema Disease. Parasitic infestations (protozoa, worms, etc.)
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Anomalops katoptron

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


There are 6 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.

ACACGCTGATTTTTCTCAACCAACCACAAAGACATTGGTACCCTGTATCTCGTATTCGGTGCATGAGCCGGCATGGTCGGCACAGCCCTAAGCCTTCTCATCCGAGCTGAGCTTAGTCAACCTGGGGCACTCTTAGGAGAT---GACCAGATTTACAATGTAATTGTTACAGCACATGCCTTCGTAATAATTTTCTTTATAGTAATGCCAATCATGATTGGTGGCTTTGGCAACTGATTGGTACCCCTAATGATTGGGGCTCCAGACATGGCATTCCCACGAATAAATAACATAAGCTTCTGACTTCTTCCCCCCTCTTTCCTTCTCCTTCTAGCCTCTTCCGGAGTTGAAGCAGGTGCCGGAACCGGATGAACCGTCTACCCACCCCTTGCGGGGAACCTCGCCCACGCAGGGGCCTCCGTAGACTTAACCATCTTCTCCCTACATCTTGCAGGTGTCTCTTCTATTCTGGGTGCCATTAATTTTATTACAACCATTATTAACATGAAGCCCCCTGCCATCTCCCAATACCAAACCCCACTATTTGTGTGAGCCGTATTAATTACAGCAGTCCTGCTTCTACTATCCCTTCCAGTCCTTGCAGCCGGCATCACAATACTCCTCACAGACCGAAACTTAAATACAACCTTCTTTGACCCTGCAGGGGGAGGCGATCCCATTCTGTACCAACACCTGTTCTGATTCTTCGGGCACCCCGAAGTATATATTCTTATCCTCCCAGGATTTGGCATGATCTCCCACATTGTCGCCTATTATTCCGGTAAAAAAGAACCATTCGGCTATATAGGAATGGTCTGAGCCATGATGGCTATCGGCCTACTCGGCTTTATTGTATGAGCCCATCACATGTTTACAGTCGGAATGGACGTAGACACGCGAG
-- end --

Download FASTA File
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Statistics of barcoding coverage: Anomalops katoptron

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 6
Specimens with Barcodes: 7
Species With Barcodes: 1
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Conservation

Threats

Not Evaluated
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: of no interest; aquarium: commercial; bait: occasionally
  • Robins, C.R., R.M. Bailey, C.E. Bond, J.R. Brooker, E.A. Lachner, R.N. Lea and W.B. Scott 1991 World fishes important to North Americans. Exclusive of species from the continental waters of the United States and Canada. Am. Fish. Soc. Spec. Publ. (21):243 p. (Ref. 4537)   http://www.fishbase.org/references/FBRefSummary.php?id=4537&speccode=1255 External link.
  • Paxton, J.R. and G.D. Johnson 1999 Anomalopidae. Flashlight fishes. p. 2212-2213. In K.E. Carpenter and V.H. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the WCP. Vol. 4. Bony fishes-part 2. (Mugilidae to Carangidae). FAO, Rome.   http://www.fishbase.org/references/FBRefSummary.php?id=9853 External link.
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Wikipedia

Splitfin flashlightfish

The splitfin flashlightfish, Anomalops katoptron, is a species of flashlight fish found in the warm waters of the central and western Pacific Ocean where they are found in shallow waters in the vicinity of reefs and in deep waters from depths of 200 to 400 metres (660 to 1,300 ft). This species grows to a length of 35 centimetres (14 in) TL. This species is the only known member of its genus. [1]

Physical description[edit]

Splitfin flashlightfish gets its name from its two glowing patches that are cause by bio-luminescent bacteria in organs below each eye. This fish have a black body with a blueish tint on their caudal and dorsal fins. This species grows to a length of 35 centimetres (14 in) TL. [2]

Behavior[edit]

These fish are nocturnal, emerging at night to feed on zooplankton and smaller fishes. [3]

In the aquarium[edit]

This fish can be found in the aquarium trade. It requires an aquarium of at least 125 gallons where it can be kept with other nocturnal fish including Pinecone Fish, Squirrelfish and Cardinalfish. This species requires plenty of hiding places and low lighting in the aquarium. [4]

References[edit]

  1. ^ Froese, Rainer and Pauly, Daniel, eds. (2012). "Anomalops katoptron" in FishBase. October 2012 version.
  2. ^ http://fishindex.blogspot.com/2011/07/flashlight-fish-anomalops-katoptron.html
  3. ^ Froese, Rainer and Pauly, Daniel, eds. (2012). "Anomalops katoptron" in FishBase. October 2012 version.
  4. ^ http://fishindex.blogspot.com/2011/07/flashlight-fish-anomalops-katoptron.html
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