Overview

Comprehensive Description

Biology

Found in rivers, canals, beels, ditches, inundated fields and other freshwater areas. Adults fight well and provide good sport. Carnivore. Breeding occurs before the commencement of monsoons. Oviparous, distinct pairing possibly like other members of the same genus (Ref. 205).
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Distribution

Range Description

This species is widely distributed in the Ganges and Indus river drainages, and also occurs in several major rivers in peninsular India at least as far south as the Krishna River (Ferraris and Runge 1999). Records of this species from south of the Krishna River drainage (e.g. the Cauvery River) may represent introductions (Jayaram et al. 1982). There is a single specimen collected from the Irrawaddy River drainage in Myanmar deposited in the Naturhistoriska Riksmuseet in Stockholm. If the locality information is correct, then this species is also found in the Irrawaddy River drainage.
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South central Asia: Ganges River system and peninsular India: Nepal, Indai, Bangladesh and Pakistan..
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Asia: Afghanistan, Pakistan, India, Nepal and Bangladesh (Ref. 4833). Reported from Thailand (Ref. 37773) and Yunnan, China (Ref. 84139).
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Physical Description

Morphology

Dorsal spines (total): 1; Dorsal soft rays (total): 7; Analspines: 0; Analsoft rays: 11 - 12
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Size

Maximum size: 1500 mm TL
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Max. size

150 cm TL (male/unsexed; (Ref. 4833))
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Diagnostic Description

Body elongate and compressed; snout broad and spatulate. Barbels extend posteriorly to pelvic fins or beyond to anal fin. Dorsal spine weakly serrated on its posterior edge; adipose fin base short, about as long as the rayed dorsal fin base. Color is brownish-gray on back, silvery on flanks and belly. A dark well-defined spot is on the adipose dorsal fin.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This species inhabits larger rivers and lakes.

Systems
  • Freshwater
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Environment

demersal; potamodromous (Ref. 51243); freshwater; brackish
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Migration

Potamodromous. Migrating within streams, migratory in rivers, e.g. Saliminus, Moxostoma, Labeo. Migrations should be cyclical and predictable and cover more than 100 km.
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Trophic Strategy

Found in rivers, canals, beels, ditches, inundated fields and other freshwater areas.
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Sperata seenghala

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


No available public DNA sequences.

Download FASTA File
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Statistics of barcoding coverage: Sperata seenghala

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 3
Specimens with Barcodes: 9
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Ng, H.H.

Reviewer/s
Allen, D.J., Vishwanath, W., Dahanukar, N. & Molur, S.

Contributor/s
Molur, S.

Justification
Although Sperata seenghala is assessed as Least Concern for now because current field surveys still indicate that it is still relatively abundant, closer monitoring of its fisheries is badly needed. The effects of current (and future) levels of harvesting on population size are badly in need of study for this species. Should more detailed catch data for this species become available, it may be necessary to reassess this species.
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Population

Population
There is no information on the population and its trends for this species.

Population Trend
Unknown
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Threats

Major Threats
Being a large predatory fish that is intensively fished for food, Sperata seenghala is most likely vulnerable to overfishing. However, there is no catch data to suggest that current levels of harvest are adversely affecting its population. Other threats to this species are unknown, since there is no information on the biology of this species and therefore the impact of potential threats (especially those of an anthropogenic nature) remains unknown. The current threats to aquatic biodiversity in all of its known distribution have also not been adequately identified.
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
More research about the distribution and the biology of this species is needed, as there is insufficient information available. More information on catch data is needed and potential threats to this species also need to be identified.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: commercial; aquaculture: likely future use; gamefish: yes
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Wikipedia

Sperata seenghala

Sperata seenghala, the Giant river-catfish, is a species of bagrid catfish. It is known locally as Guizza, Guizza ayer, Auri, Ari, Pogal, Singhara and Seenghala, among other names.[2] It is found in southern Asia in the countries of Afghanistan, Pakistan, India, Nepal and Bangladesh with reports of occurrence in Thailand and Yunnan, China. It can reach a length of 150 cm, though lengths up to 40 cm are more usual. It is commercially fished for human consumption as well as being a popular gamefish with a reputation for being a good fighter when hooked. It is carnivorous in diet. It can be distinguished from other sperata species by its spatulate, blunt snout, relatively short barbels and mouth that is only 1/3 as wide as the head is long.[3]

Sperata seenghala
dorsal view of head showing snout shape

References[edit]

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