厚壳贻贝饲用价值评估:基于不同生境营养元素积累的季节性差异OA

The experiment aimed to evaluate the seasonal differences in carbon(C),nitrogen(N),and phosphorus(P)accumulation in Mytilus coruscus from different habitats(aquaculture areas and intertidal zones).Mytilus coruscus were collected in the aquaculture area and intertidal zone of Goji Island in Zhoushan during the four seasons of spring,summer,autumn,and winter.The concentrations of C,N,and P in their gonads and body tissues were measured and statistically analyzed.The results showed that the concentrations of C,N,and P in Mytilus coruscus exhibited seasonal fluctuations synchronized with the reproductive cycle,with C accumulating in summer and autumn,and N and P accumulating in winter and spring.Habitat affected the element allocation strategy of Mytilus coruscus.Compared with intertidal Mytilus coruscus,Mytilus coruscus in aquaculture areas had relatively higher concentrations of N and P in their body tissues and lower N content in their gonads.Further analysis of allometric growth showed that Mytilus coruscus in aquaculture areas preferentially absorb N and P in the gonads during spring,while intertidal populations significantly accumulate P in the gonads during autumn.The study shows that different habitats and seasons can affect the accumulation and distribution of nutrients in Mytilus coruscus.Mytilus coruscus in aquaculture areas have higher concentrations of N and P in their body tissues,making them suitable as high-quality protein sources.The intertidal Mytilus coruscus have more advantageous energy storage characteristics in specific seasons.