Overview

Brief Summary

Chascanopsetta is a genus of deep-sea flounders found in the Indian, Pacific, and Atlantic Oceans. The depth range for the genus is believed to be ~150 to 650 m. (Amaoko and Parin 1990) As is the case for many deep-sea fishes, the bodies of Chascanopsetta flounders are strongly compressed and flexible and the mouth is very large. Around eight species are currently recognized (Froese and Pauly 2011), but additional species likely remain undescribed.

Chascanopsetta are members of the family Bothidae, which are commonly known as the lefteye flounders. The term “lefteye” comes from the fact that, as a result of eye migration during development, adult bothids typically have two eyes on the left side of their body, with no eyes on the right side. The side with eyes is known as the “ocular side”, while the other side (which faces down when the fish is at rest on the bottom) is referred to as the “blind side” (Amaoka and Yamamoto 1984).

  • Amaoka, K., & Yamamoto, E. 1984. Review of the Genus Chascanopsetta, with the Description of a New Species. Bull. Fac. Fish. Hokkaido Univ, 35(4):201-224.
  • Amaoka, K. and Parin, N.V. 1990. A New Flounder, Chascanopsetta megagnatha, from the Sala-y-Gomez Submarine Ridge,Eastern Pacific Ocean (Teleostei: Pleuronectiformes: Bothidae). Copeia 1990 (3): 717-722
  • Froese, R. and D. Pauly, eds. 2011. FishBase. World Wide Web electronic publication. www.fishbase.org, version (12/2011)
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Ecology

Habitat

Depth range based on 83 specimens in 7 taxa.
Water temperature and chemistry ranges based on 53 samples.

Environmental ranges
  Depth range (m): 29 - 910
  Temperature range (°C): 5.565 - 26.729
  Nitrate (umol/L): 0.605 - 34.155
  Salinity (PPS): 34.113 - 36.422
  Oxygen (ml/l): 0.875 - 4.952
  Phosphate (umol/l): 0.025 - 2.497
  Silicate (umol/l): 3.651 - 47.960

Graphical representation

Depth range (m): 29 - 910

Temperature range (°C): 5.565 - 26.729

Nitrate (umol/L): 0.605 - 34.155

Salinity (PPS): 34.113 - 36.422

Oxygen (ml/l): 0.875 - 4.952

Phosphate (umol/l): 0.025 - 2.497

Silicate (umol/l): 3.651 - 47.960
 
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage

Barcode of Life Data Systems (BOLD) Stats
Specimen Records: 21
Specimens with Sequences: 19
Specimens with Barcodes: 19
Species: 4
Species With Barcodes: 4
Public Records: 7
Public Species: 3
Public BINs: 2
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Barcode data

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Wikipedia

Chascanopsetta

Chascanopsetta is a genus of flatfish in the family Bothidae (lefteye flounders) found in deeper parts of the Pacific and Indian Oceans with a single species, C. lugubris also occuring in the Atlantic Ocean. It contains eight member species.[1]

Description[edit]

Members of this genus have an elongate body and a relatively large mouth, the latter giving rise to the common name pelican flounder (primarily used for P. lugubris). They lack rostral, orbital, or mandibular spines.[1]

Species[edit]

There are currently eight recognized species in this genus:[2]

References[edit]

  1. ^ a b c Agropedia.affrc.go.jp
  2. ^ Froese, Rainer, and Daniel Pauly, eds. (2012). Species of Chascanopsetta in FishBase. October 2012 version.


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