Studies on the Seasonal Fluctuations in the Proximate Body Composition of <em>Paratelphusa masoniana</em> (Henderson) (Female), a Local Freshwater Crab of Jammu Region

Abstract

The freshwater crab, Paratelphusa masoniana was collected for a period of one year to investigate the seasonal fluctuation in the proximate composition. Marked seasonal variation in protein, lipid and moisture were observed during a period of one year to determine their viability in the course of the reproductive cycle. Both protein and lipid content are inversely related to moisture content. Maximum protein (62.15±0.30%; 55.85±0.48) and lipid (5.85±0.46%; 5.49±0.38%) were observed during non-spawning period and minimum during spawning months. The relationship between protein and lipid is however a direct one. On the basis of the investigation, it has been recorded that the local freshwater crab, P. masoniana, is a biannual breeder.

Fatty Acid Profile of Freshwater Crab (Paratelphusha lamellifrons) from Padma River of Rajshahi City, Bangladesh

“…From Table 1 and Figure 1 it is evident that content of lipid in body meat (17.64 ± 1.0%) is higher than that of claw meat (13.24% ± 0.80%). Our results are more than 2 to 3 times higher with the findings [22], wherein lipids were found to be 4.82% ± 0.61% and 3.38 ± 0.35% in body and claw meat in female and 5.15% ± 0.67%, 3.39% ± 0.67% in male crab M. masoniana; 4.68% ± 0.28% and 3.92% ± 0.25% in body and claw meat in male and 4.44% ± 0.52% and 3.81% ± 0.33% in female crab P. Pelagicus [34], 4.83% ± 0.61% in female crab P. masoniana [38].…”

“…As like moisture and protein, ash content has been found to be higher in claw meat (22.12% ± 0.16%) than body meat (19.62% ± 0.86%) (Table 1, Figure 1). Similar trend was reported for different crab but the present value is near about 2 fold higher with the previous published reports 8.37% ± 1.66% and 10.22% ± 2.63% in body and claw meat in female and 8.56% ± 1.62%, 9.10% ± 1.99% in male crab M. masoniana [22]; 8.56% ± 0.50% and 9.89% ± 0.55% in body and claw meat in male and 8.44% ± 0.44% and 11.33% ± 0.93% in female crab P. pelagicus [34]; 4.83% ± 0.61% in female crab P. masoniana [38].…”

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“…Seafood contains high levels of energy yielding macronutrients like protein and lipids [24]. Large variations occur in the proximate composition of any organism as several factors like species, habitat, diet, water temperature, and seasons often influence the proximate composition [25,26]. Even slight variations occur in the proximate composition within the same species due to several factors sex, sexual maturity and spawning [27].…”