PERTANIKA JOURNAL OF SCIENCE AND TECHNOLOGY

Length-weight relationships and relative condition factors were conducted to provide information on fish species’ growth conditions and general well-being in the freshwater habitat. This study was conducted using fish as a bioindicator for the health of the ecosystem. Cyclocheilithys apogon (Beardless barb) and Notopterus notopterus (Bronze featherback) are the most dominant species in Subang Lake. A four-month sampling was conducted to collect the sample of Beardless barb and Bronze featherback. A total of 422 individuals of Beardless barb and 344 individuals of Bronze featherback were measured and weighed. The mean total length of Breadless barb was 13.11 ± 1.31 cm with the mean weight of 31.88±9.93 g. The mean of the total length and weight of Bronze featherback was 16.05 ± 2.07 cm and 30.38 ± 15.63 g. Both fish species showed negative allometric growth with the exponent b value 2.884 and 2.886, respectively. The condition factor of Beardless barb (1.184 ± 0.134) and Bronze featherback (1.010 ± 0.163) obtained from this study reflects a fair growth condition based on K value by Barnham & Baxter (2003). Further studies need to be conducted to determine the significant impacts that affect fish species’ growth conditions.

• Amonodin, M. R., Fadzil, N. F. M., Azmai, A. M. N., & Hashim, R. (2018). A review of length-weight relationships of freshwater fishes in Malaysia. Transylvanian Review of Systematical and Ecological Research, 20(1), 55-68. https://doi.org/10.1515/trser-2018-0005

• Barnham, C. P. S. M., & Baxter, A. (2003). Condition factor, K, for salmonid sh. State of Victoria, Department of Primary Industries.

• Dalu, T., Nhiwatiwa, T., & Clegg, B. (2013). Length–weight relationships and condition factors of six fish species caught using gill nets in a tropical African reservoir, Zimbabwe. Transactions of the Royal Society of South Africa, 68(1), 75-79. https://doi.org/10.1080/0035919X.2012.733318

• Dubey, V. K., Sarkar, U. K., Kumar, R. S., Mir, J. I., Pandey, A., & Lakra, W. S. (2012). Length-weight relationships (LWRs) of 12 Indian freshwater fish species from an un-impacted tropical river of Central India (River Ken). Journal of Applied Ichthyology, 28(5), 854-856. https://doi.org/10.1111/j.1439-0426.2012.02005.x

• Farooq, N., Qamar, N., Rashid, S., & Panhwar, S. K. (2017). Length-weight relationship of eleven species of marine catfishes from the northern Arabian Sea coast of Pakistan. Chinese Journal of Oceanology and Limnology, 35(5), 1218-1220.

• Froese, R. (2006). Cube law, condition factor and weight-length relationships: History, meta-analysis and recommendations. Journal of Applied Ichthyology, 22(4), 241-253. https://doi.org/10.1111/j.1439-0426.2006.00805.x

• Gaygusuz, Ö., Aydin, H., Emiroǧlu, Ö., Top, N., Dorak, Z., Gaygusuz, Ç. G., Baskurt, S., & Tarkan, A. S. (2012). Length-weight relationships of freshwater fishes from the western part of Anatolia, Turkey. Journal of Applied Ichthyology, 29(1), 285-287. https://doi.org/10.1111/jai.12015

• Hamid, M. A., Mansor, M., & Nor, S. A. M. (2015). Length-weight relationship and condition factor of fish populations in Temengor Reservoir: Indication of environmental health. Sains Malaysiana, 44(1), 61-66. https://doi.org/10.17576/jsm-2015-4401-09

• Isa, M. M., Rawi, C. S., Rosla, R., Shah, S. A. M., & Shah, A. S. R. M. (2010). Length – weight relationships of freshwater fish species in Kerian River Basin and Pedu Lake. Research Journal of Fisheries and Hydrobiology, 5(1), 1-8.

• Jisr, N., Younes, G., Sukhn, C., & El-Dakdouki, M. H. (2018). Length-weight relationships and relative condition factor of fish inhabiting the marine area of the Eastern Mediterranean city, Tripoli-Lebanon. The Egyptian Journal of Aquatic Research, 44(4), 299-305

• Jones, R. E., Petrell, R. J., & Pauly, D. (1999). Using modified length-weight relationships to assess the condition of fish. Aquacultural engineering, 20(4), 261-276.

• Karna, S. K., Sahoo, D., Panda, S., Vihar, V., Bhaban, M., & Nagar, S. (2012). Length weight relationship (LWR), growth estimation and length at maturity of Etroplus suratensis in Chilika Lagoon, Orissa, India. International Journal of Environmental Sciences, 2(3), 1257-1267.

• Kaur, V., & Rawal, Y. K. (2017). Length-weight relationship ( LWR ) in Notopterus notopterus (Pallas) from Sukhna Lake, Chandigarh. IOSR Journal of Pharmacy and Biological Sciences, 12(4), 63-65. https://doi.org/10.9790/3008-1204046365

• Khan, M. A. (2003). Length-weight relationship and relative condition index of Notopterus notopterus (Pallas) of Tilaiya Reservoir, Bihar. Records of The Zoological Survey of India, 101, 233-239.

• Kumar, K. H., & Kiran, B. R. (2016). Relative condition factor of feather back, Notopterus Notopterus (Pallas) from Jannapura Pond, Bhadravathi Taluk, Karnataka. International Journal of Scientific Research in Science, Engineering and Technology, 2(1), 36-39.

• Le Cren, E. D. (1951). The length-weight relationship and seasonal cycle in gonad weight and condition in the perch (Perca fluviatilis). The Journal of Animal Ecology, 20(2), 201-219. https://doi.org/10.2307/1540

• Martin-Smith, K. M. (1996). Length/weight relationships of fishes in a diverse tropical freshwater community, Sabah, Malaysia. Journal of Fish Biology, 49(4), 731-734. https://doi.org/10.1006/jfbi.1996.0201

• Nyanti, L., Soo, C., Ling, T., Sim, S., Grinang, J., Ganyai, T., & Lee, K. (2018). Physicochemical parameters and fish assemblages in the downstream river of a tropical hydroelectric dam subjected to diurnal changes in flow. Hindawi International Journal of Ecology, 2018, 1-9.

• Pope K. L. (2007) Condition. In C. S. Guy & M. L. Brown (Eds.), Analysis and interpretation of freshwater fisheries data (pp. 423-471). American Fisheries Society.

• Rosli, N. A. M., & Zain, K. M. (2016). Preliminary assessment on autecological studies of beardless barb, Cyclocheilichthys apogon (valenciennes, 1842) from Muda Reservoir of Kedah, Malaysia. Tropical life sciences research, 27(supp1), 63-69. https://doi.org/10.21315/tlsr2016.27.3.9

• Sarkar, U. K., Khan, G. E., Dabas, A., Pathak, A. K., Mir, J. I., Rebello, S. C., Pal, A., & Singh, S. P. (2013). Length weight relationship and condition factor of selected freshwater fish species found in River Ganga, Gomti and Rapti, India. Journal of Environmental Biology, 34, 951-956.

• Sharip, Z., Yusoff, F. M., & Ismail, W. R. (2017). Trophic state characterisation for Malaysian lake. In M. Maghfiroh, A. Dianto, T. Jasalesmana, I. Melati, O. Samir, & R. Kurniawan (Eds.), The 16th World Lake Conference (pp. 442-447). Research Center for Limnology, Indonesian Institute of Sciences.

• Zulkafli, A. R., Amal, M. N. A., Shohaimi, S., Mustafa, A., Ghani, A. H., Ayub, S., Hashim, S., Anuar, M. I., & Hasfairi, M. P. (2016). Length–weight relationships of 13 fish species from Pahang River, Temerloh District, Pahang, Malaysia. Journal of Applied Ichthyology, 32(1), 165-166. https://doi.org/10.1111/jai.12959