Length Weight Relationship (LWR) and Condition Factor (K) of Brown Trout, Salmo trutta fario
Keywords:Condition Factor, Length-Weight Relationship, Salmo trutta fario.
AbstractLength-weight relationships and condition factor of Salmo trutta fario (Brown trout) at Kokernag trout fish farm, Anantnag, Jammu and Kashmir was estimated for a period of one year. During the present study the fish samples was within the range of 30cm to 45.8cm in length and 250g to 750g in weight were originally used to provide information on the condition of fish and to determine whether somatic growth was isometric or allometric. The relationship was analysed using the formula W = a Lb which was further transformed into Log W = a + b log L. The equation obtained for females was log W= 1.61 + 3.33 logL and for males was log W = 1.81 + 3.22 logL. Females show 'b' value slight more than males. Studies on condition factor revealed that the fluctuations in K values can be attributed to the spawning cycle. The condition factor 'K' was above 1 indicating robustness or well being of the experimental fish.
Abowei JFN. The condition factor, length-weight relationship and abundance of Elops senegalensis (Regan, 1909) from Nkoro river, Niger Delta, Nigeria. Advance Journal of Food Science and Technology. 2010; 2:16–21.
Ackman RG. Nutritional composition of fats in sea food. Progress in Food and Nutrition Science. 1989; 13:161–241. PMid:2699043
Bagenal TB and Tesch FW. Conditions and growth patterns in fresh water habitats. Blackwell Scientific Publications, Oxford, UK. 1978; p. 75–89.
Bhagath MJ and Sunder S. A preliminary notes on length-weight relationship and condition factor Schizothorax plagiostomus (Heckel, 1883) from Jammu region. Journal of Inland Fisheries Society of India. 1983; 15:73–4.
Bhat FA, Yousuf AR, Balkhi MH, Mahdi MD and Shah FA. Length-weight relationship and morphometric characteristics of Schizothorax spp. in the river Lidder of Kashmir. Indian Journal of Fisheries. 2010; 57:73–6.
Brown ML and Murphy BR. Standard weight (WS) development for striped bass, white bass and hybrid bass. North American Journal of Fisheries Management. 1991; 11: 451v467.
Dav SA, Najar AM, Balkhi MH, Rather MA and Sharma R. Length weight relationship and relative condition factor of Schizophyge escocinus (Heckel 1838) from Thelum river Kashmir. International Journal of Aquatic Science. 2012; 3: 29–36.
Day F. The fishes of India, being a natural history of the fishes known to inhabit the seas and fresh waters of India, Burma and Cylone reproduced in 1958. London: Willaim Dowen and sons. 1878; p. 778.
Demirel N and Dalkara EM. Weight-length relationships of 28 fish species in the Sea of Marmara. Turkish Journal of Zoology. 2012; 36:785–91.
Edah BA, Akande AO, Ayo-Olalusi C and Olusola A. Computed the wet weight-dry weight relationship of Oreochromis niloticus, Tilapia. International Journal of Food and Safety. 2010; 12:10916.
Froese R. Cube law, condition factor and weight-length relationship: history, meta-analysis and recommendations. Journal of Applied Ichthyology. 2006; 22:241–53. https://doi.org/10.1111/j.1439-0426.2006.00805.x
Fulton TW. The rate of growth of fishes. Twenty-second Annual Report Part III. Fisheries Board of Scotland, Edinburgh. 1904; 3:141–241.
Gumanao GS, Saceda-Cardoza MM, Mueller B and Bos AR. Length-weight and length-length relationships of 139 IndoPacific fish species (Teleostei) from the Davao Gulf, Philippines. Journal of Applied Ichthyology. 2016; 32:377–85. https://doi.org/10.1111/jai.12993
Khan MA and Sabah. Length-weight and length-length relationships for five fish species from Kashmir valley. Journal of Applied Ichthyology. 2013; 29:283–4. https://doi.org/10.1111/j.1439-0426.2012.02061.x
Koutrakis ET and Tsikliras AC. Short communication on lengthweight relationships of fishes from three northern Aegean estuarine systems (Greece). Journal of Applied Ichthyology. 2003; 19:258–60. https://doi.org/10.1046/j.1439-0426.2003.00456.x
Kullander SO, Fang F, Delling B and Ahlander E. The fishes of the Kashmir valley, River Jhelum, Kashmir valley. Impacts on the aquatic environment. Nyman L ed. Swedmar, Goteborgs, Lanstryckeri AB, Swedmar. 1999; p. 99–162.
Le Cren ED. The length-weight relationship and seasonal cycle in gonad weight and condition in the pearch (Perca fluviatilis). Journal of Animal Ecology. 1951; 20:201–19. https://doi.org/10.2307/1540
Mir FA, Mir JI, Patiyal RS and Kumar P. Length-weight relationships of four snow trout species from the Kashmir Valley in India. Journal of Applied Ichthyology. 2014; 30:1103–4. https:// doi.org/10.1111/jai.12482
Mir JI, Shabir R and Mir FA. Length-weight relationship and condition factor of Schizopyge curvifrons (Heckel, 1838) from river Jhelum, Kashmir, India. World Journal of Fish and Marine Sciences. 2012; 4:325–9.
Ndiaye W, Diouf K, Samba O, Ndiaye P and Panfili J. The lengthweight relationship and condition factor of white grouper (Epinephelusaeneus, Geoffroy saint Hilaire, 1817) at the southwest coast of Senegal, west Africa. International Journal of Advanced Research. 2015; 3:145–53.
Qadri MY and Mir S. Length-weight relationship of Orienus plagiostomus (McCl). Geobios. 1980; 7:158–9.
Rawat MS, Bantwan B, Singh D and Gusain OP. Length-weight relationship and condition factor of Brown trout (Salmo trutta fario) from river Asiganga, Uttarakhand (India). Journal of Environmental Conservation. 2014; 15:41–6.
Sarkar UK, Deepak PK and Negi RS. Length-weight relationship of clown knife fish Chitala chitala (Hamilton, 1822) from the Ganga basin. Journal of Applied Ichthyology. 2008; 25:232–3. https://doi.org/10.1111/j.1439-0426.2008.01206.x
Tesch FW. Age and growth. Methods for Assessment of Fish Production in Fresh waters. Ricker WE ed. Blackwell Scientific Publication, Oxford. 1971; p. 98–130.
Vass KK. Breeding biology of trout: Cold water aquaculture and fisheries, Narendra publishing house, Delhi. 2000; p. 155–68.