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Subject: Family Resource Management × Author: Parul × Start date: 1999 × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Fish diversity, their morphometric measurements, length weight relationship and physciochemical characteristics in drains of Rohtak district, Haryana
    (Chaudhary Charan Singh Haryana Agricultural University hisar, 2022-07) Parul; Gulati, Rachna
    During the study, forty-five species from Rohtak drain canal were recorded belonging to 9 orders, 14 families and 30 genera. Fish species belonged to order Cypriniformes, Osteoglossiformes, Anabantiformes, Perciformes, Cichliformes, Siluriformes, Synbranchiformes and molluscs belonged to order Architaenioglossa, Helisomascalaris. The percent distribution of fish species in different orders showed that maximum species (51%) belonged to Cypriniformes followed by Siluriformes (18%), Anabantiformes (11%). Osteoglossiform, Perciformes contributed 5 percent species and Synbranchiformes contributed 4 percent species. The rest of the orders, viz., Cichliformes, Architaenioglossa and Helisomascalaris were represented by 2 percent species each out of the total 45 species recorded during study period. The fish species composition as per IUCN status showed majority species belonged to least concern (35 species, 80%), 4 species (9%) as vulnerable, 2 species (5%) as near threatened, 1species (2%) as endangered, 1 species (2%) not evaluated and 1species (2%) data deficient. As per economic importance, 67 percent fishes have food value, 24 percent ornamental value and 9 percent fishes having both food and Ornamental value. Out of the total species recorded, 49 percent of the fish species each were omnivorous followed by 35 carnivorous and 9 percent herbivorous and 7% detritivorous fishes. The fishes of Cyprinidae, Channidae, Ambasidae, Bagridae, Siluridae and Ampulariidae family showed 100 percent catch frequency. The dominance of fish species was higher in month of November (0.4835). Highest Shannon index (1.198) was recorded in the month of April and least in November (0.7907). Length-length relationships for L. bata, C. mrigala, P. chola, M. vittatus, W. attu were highly significant and positive with the most of the coefficient determination value being greater than 0.90. The parameter “b” was less than 1 in all the length-length relationships and remained within the range of 0.113 to 0.954.In the present study, linear regression was highly significant for all species with R2values ranging from 0.581 (Labeo bata ) to 0.937 (Mystus vittatus). The estimated allometric coefficient a of the LWR ranged from 0.001 in Labeo bata to 0.376 in Mystus vittatus, while b ranged from 0.416 (Puntius chola) to 2.614 (Wallago attu). A curvilinear relationship was observed between total length and total weight. The results revealed negative allometric growth pattern for selected five fish species (b>3, p<0.05) and belonged to light group. The values of Fulton‟s condition factor were found more than one for Cirrhinus mirgala (1.008) and Puntius chola (36.096) which indicated good growth performance of these species. The Fulton‟s condition factor for Labeo bata was near to 1 (0.917) in the present study. A significant positive correlation was recorded between EC (0.65), turbidity (0.85), Dissolved oxygen (0.87), alkalinity (0.73) and number of fish per catch. Significant inverse relationship between Ammonia (-0.80), Hardness (-0.81) and the fish catch was recorded. The phytoplankton diversity with their abundance in drain canal water showed the presence of 27 genera belonging to three classes: Chlorophyceae, Bacillariophyceae (Diatoms) and Cynophyceae. Out of these,12 was of common abundance, 8 were of moderate abundance, 7 were of rare abundance. 10 zooplanktons species were recorded. Except Daphnia magna, Dhaphnia sp. and Chilodonella sp. (moderate abundance), the rest of the genera showed rare abundance.