Tor remadeviae, Hump-backed mahseer

Tor remadeviae Madhusoodana Kurup & Radhakrishnan, 2011

Hump-backed mahseer
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Tor remadeviae
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Actinopteri (ray-finned fishes) > Cypriniformes (Carps) > Cyprinidae (Minnows or carps) > Torinae
Etymology: .remadeviae: Named after K. Rema Devi.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; benthopelagic; depth range - m (Ref. ), usually - m (Ref. ).   Tropical; 0°C -

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Asia: India

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 175 cm FL male/unsexed; (Ref. 123482); max. published weight: 54.0 kg (Ref. 123482)

Short description Morphology | Morphometrics

Dorsal spines (total): 4; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 5. This species is characterised by having D IV,9; A II,5. It differs from its congeners in India by the following: a prominent hump originating above the pre-opercle and extending to the origin of the dorsal fin; a well-developed mandible resulting in a terminal or slightly superior mouth position; the dorsal orientation of the eyes; a distinctive kink in the profile of the pre-opercle, a consistent feature in T. remadevii and not observed in other South Indian Tor. Similar to other Tor species the mouth morphology is highly variable, with some individuals exhibiting hypotrophic lips and sub-terminal mouth with enlarged mentum. Colouration of the body varies (silver, bronze, greenish) and is not considered a reliable diagnostic character; the orange coloration of the caudal fin (sometimes extending to all fins) is considered a more consistent character (Ref.123478).

Biology     Glossary (e.g. epibenthic)

While functional habitats are yet to be elucidated, T. remadevii inhabits the middle to upper reaches of the River Cauvery and some of its tributaries. Mesohabitat utilization is known to incorporate shallow high velocity rapids to deep, slow flowing pools, with substrates typically composed of bedrock and boulders (Ref. 123478).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Madhusoodana Kurup, B. and K.V. Radhakrishnan, 2011. Tor remadevii, a new species of Tor (Gray) from Chinnar Wildlife Sanctuary, Pambar River, Kerala, southern India. J. Bombay Nat. Hist. Soc. [2010] 107(3):227-230. (Ref. 88141)

IUCN Red List Status (Ref. 124695)

  Critically Endangered (CR) (A2abce); Date assessed: 19 April 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO - Publication: search | FishSource |

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AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00483 - 0.01723), b=2.99 (2.83 - 3.15), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  2.8   ±0.2 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Very high vulnerability (85 of 100) .