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Common names: Hump-backed mahseer, Orange-finned mahseer
Occurrence: endemic
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Type locality of Tor remadevii, Pambar, the southern-most tributary of the River Cauvery in Kerala. It is endemic to River Cauvery, Karnataka, Kerala, Tamil Nadu. Tor remadevii is currently known only from the eastward flowing River Cauvery and its tributaries including the Moyar, Kabini, Bhavani and the Pambar, in the Western Ghats Hotspot of peninsular India (Ref. 123468). Also known from Chambakkad and Koottar regions of river Pambar in Chinnar Wildlife Sanctuary, Kerala, southern India (Ref. 88141). Status of threat: Critically endangered: following its collapse in recruitment in the main river population during the mid-2000s (Pinder et al. 2015b), the only spawning populations currently known to persist are restricted to a 40 km reach of the River Moyar, Tamil Nadu (Pinder et al. 2018a) and the Pambar River in Kerala. The status is because of the alarming population size reduction and persistent threats (Ref. 123468).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/in.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Madhusoodana Kurup, B. and K.V. Radhakrishnan, 2011
National Database:

Common names from other countries

Devi mahsir, Orange-finned mahseer, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > 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. Tropical

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

Asia: India

Size / Weight / Age

Maturity: L_m ? 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).

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. 130435)

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

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): 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.).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (90 of 100).

Tor remadeviae Madhusoodana, Kurup & Radhakrishnan, 2011