Studies on Meristic Counts and Morphometric Measurements of Mahseer (Tor putitora) from a Spawning Ground of Himalayan Foot-hill River Korang Islamabad, Pakistan

Zafar, Maryam; Nazir, Abdul; Akhtar, Nasreen; Naqvi, S. M. H. M.; Zia-ur-Rehman, M.

doi:10.3923/pjbs.2002.733.735

Cited by 14 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In general, male mahseer remain higher compared to female in immature stock while higher female in mature stock (Pathak et al 2014;Mayank et al 2016). The recorded size ranges of males (310-565 mm, 355-1750 gm) and females (315-580 mm, 260-2500 gm) from River Kosi in the present study were higher than the earlier reports from Himalayan foothills (Zafar et al 2002;Langer et al 2013) and lesser Himalayan region (Naeem et al 2011;Patiyal et al 2014). Interestingly, the maximum total body length reported by Naeem et al (2011) for females (402 mm) and Patiyal et al (2014) for pooled sex (wild: 452 mm, farmed: 547 mm) had close resemblance with the present study.…”

Section: Reproductive Biology and Habitat Qualitycontrasting

confidence: 87%

Pattern of reproductive biology of the endangered golden mahseer Tor putitora (Hamilton 1822) with special reference to regional climate change implications on breeding phenology from lesser Himalayan region, India

Joshi

Das

Pathak

et al. 2018

Journal of Applied Animal Research

View full text Add to dashboard Cite

Mahseer is an important group of endemic game fish found in the Indian subcontinent inhabiting in streams, riverine pools and lakes. Besides commercial fishery, it also forms lucrative sport fishery in the Himalayan rivers. Samples of golden mahseer (Tor putitora) were collected from the river Kosi at Ramnagar area (lesser Himalayan region) of Uttarakhand, India during 2014-2016 to study reproductive biology and trace any changes in breeding phenology from earlier records. The observed breeding season was from July till September. In males (310-565 mm, 355-1750 g) and females (315-580 mm, 260-2500 g), GSI values surged from late June to early July and peaked in August. Absolute and relative fecundity ranged from 4217 to 8365 and from 3667 to 7348 per kg, respectively. The maximum water temperature was usually recorded in May (30.5°C) and minimum (18.4°C) in January. Sex ratio was estimated at 1:1.25 with χ 2 value of 3.20 and the difference was non-significant. The breeding phenology of golden mahseer may likely have gone through two distinct steps of transformation viz. shifting-prolongation (1911-1981) and reduction-stabilization (1981-present). Even after a probable reduction in duration of breeding season and shift (delay) in onset of breeding in Golden mahseer population of lesser Himalayan region during 1911-1981, some stabilization in breeding phenology appears to have been attained since 2000s. It is predicted that the species appears to be continuously adapting to changing climate in lesser Himalayas.

show abstract

Section: Reproductive Biology and Habitat Qualitycontrasting

confidence: 87%

Pattern of reproductive biology of the endangered golden mahseer Tor putitora (Hamilton 1822) with special reference to regional climate change implications on breeding phenology from lesser Himalayan region, India

Joshi

Das

Pathak

et al. 2018

Journal of Applied Animal Research

View full text Add to dashboard Cite

show abstract

“…Katoh and Tokimura [119] compared measurements among different catfishes. Zafar et al [120] reported in Mahseer (Tor putitora) that, all the meristic characters remained constant whereas morphometric characters gradually increased with increasing body length showing isometric growth pattern. Parsons et al [75] revealed high morphometric variations in two cichlid fish species.…”

Section: Application In Global Fisheriesmentioning

confidence: 99%

Significance of Traditional and Advanced Morphometry to Fishery Science

Tripathy¹

2020

J. Hum. Earth Future

View full text Add to dashboard Cite

Morphometric characters of fishes are measurable or metric characters. Morphometrics is a more or less interwoven set of large statistical procedures to analyze variability in the size and shape of organisms. Morphometrics and phylogenetics of a species are combined to utilize existing phylogeny which addresses hypotheses of shape change through evolutionary time. Morphometric differences among stocks of a species are recognized as important to evaluate population structure and form a basis to identify stocks. Advancements in morphometrics used powerful tools for testing and displaying differences in shape, isolated shape from size variation and identifying stocks of species with unique morphological characteristics enabling better management of the species. Traditional or standard morphometry has been improvised from time to time with advanced methods by technological advancements like geometric morphometrics, image analysis, principal component analysis, truss network analysis and multivariate analysis as well as many more to update knowledge and get more accurate information. These advanced methods have strengthened earlier technologies to improve upgrade fishery research throughout the globe. Doi: 10.28991/HEF-2020-01-03-05 Full Text: PDF

show abstract

Biometric indices, growth pattern, and physiological status of captive-reared indigenous Yellowtail brood catfish, Pangasius pangasius (Hamilton, 1822)

Rahman

Manon

Ullah

et al. 2023

Environ Sci Pollut Res

View full text Add to dashboard Cite

Studies on Meristic Counts and Morphometric Measurements of Mahseer (Tor putitora) from a Spawning Ground of Himalayan Foot-hill River Korang Islamabad, Pakistan

Cited by 14 publications

References 0 publications

Pattern of reproductive biology of the endangered golden mahseer Tor putitora (Hamilton 1822) with special reference to regional climate change implications on breeding phenology from lesser Himalayan region, India

Pattern of reproductive biology of the endangered golden mahseer Tor putitora (Hamilton 1822) with special reference to regional climate change implications on breeding phenology from lesser Himalayan region, India

Significance of Traditional and Advanced Morphometry to Fishery Science

Biometric indices, growth pattern, and physiological status of captive-reared indigenous Yellowtail brood catfish, Pangasius pangasius (Hamilton, 1822)

Contact Info

Product

Resources

About