Comparative study of hematological profile of three forage fish species habiting in Dal Lake of Kashmir Himalaya, India
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ORIGINAL ARTICLE
Comparative study of hematological profile of three forage fish species habiting in Dal Lake of Kashmir Himalaya, India Muzamil Sidiq 1 & Imtiaz Ahmed 1 Received: 14 May 2019 / Accepted: 5 July 2020 / Published online: 13 August 2020 # Springer-Verlag London Ltd., part of Springer Nature 2020
Abstract The forage fish species are considered as a vital source of food for other predators and are also being used as dry human food in the Kashmir valley during the winter season. However, due to disturbance in their habitat, the population of the fishes under study, Triplophysa kashmirensis, Pethia conchonius and Crossocheilus diplochilus has also declined and needs attention for their well-being. Therefore, the present study was carried out with an aim to evaluate the hematological profile of these three forage fishes habiting in Dal lake of Kashmir Himalaya. Live adult fish specimens were collected from Dal Lake with the help of fishermen. A total of 78 specimens of C. diplochilus, 60 specimens of T. kashmirensis and 78 specimens of Rosy barb were collected during the study period. Hematological parameters such as: hemoglobin (Hb) content, red blood cell (RBC), white blood cell (WBC) counts, mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC) and mean corpuscular volume (MCV) were analyzed by using standard methodology. Significant (P < 0.05) differences were observed in the hematological profile between the three forage fishes. Highest Hb (11.14 g dL−1) and RBC content (1.34 × 106 mm−3) were found in T. kashmirensis, while the other two species showed a downward trend. Hematocrit (Hct) value was recorded within the range of 27 to 31% with the highest value found in T. kashmirensis (31.2%) and lowest Hct was noted in C. diplochilus (27.28%). RBC/WBC level was also found highest in T. kashmirensis followed by Rosy barb and C. diplochilus, respectively. However, MCH and MCV values were found highest in Rosy barb among the three species, while MCHC showed its highest value in T. kashmirensis. The data generated in the present study would be useful in monitoring the health status of these forage fish species for their conservation and management in order to maintain the ecological balance of the water bodies. Keywords Comparative study . Dal Lake . Forage fish species . Hematology
Introduction Fish blood is considered as the indicator of whole body function, and thus, the study of blood parameters is important to understand the functional status of fish. The knowledge of hematological parameters is a pre-requisite in order to examine the physiological and pathological changes in fishes thus providing detailed information on general metabolism and health status of fish habiting in different habitats (Akinrotimi et al. 2009; Ahmed et al. 2019; Fazio 2019; Ahmed and Sheikh 2020; Ahmed et al. 2020). It has been suggested that any change in the proportion of different blood cell types are
* Imtiaz Ahmed [email protected] 1
Fish Nutrition Research Laboratory, Department of Zo
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