Current progresses direct age determination and growth of shrimps and crabs using microstructure of eyestalks: a review
NI Zhen-yu, LIU Bi-lin, ZHANG Jian, JIANG Rui, SHU Chang
1.College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China； 2.Key Laboratory of Oceanic Fisheries Exploration, Ministry of Agriculture and Rural Affairs, Shanghai 201306, China; 3.National Engineering Research Center for Oceanic Fisheries, Shanghai Ocean University, Shanghai 201306, China; 4.Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China; 5.Scientific Observing and Experimental Station of Oceanic Fishery Resources, Ministry of Agriculture and Rural Affairs, Shanghai 201306, China
Abstract: Shrimps and crabs grow accompanied by molt, during which age recording of exoskeleton is disappeared, resulting in difficulty in age identification.Since eyestalks are considered as a material for direct age determination of shrimps and crabs, morphological structure, sample preparation and utilization of eyestalks in age determination of shrimps and crabs are reviewed.There are four-layers (epicuticle, exocuticle, endocuticle and membranous layer) in the eyestalks, in which growth bands are calcified in the endocuticle to determine the age.The growth bands are divided into broadband, which is primarily related to age information, and fine lines, which is related to body length and other factors.The relationship between growth bands with age and growth in shrimps and crabs is also needed further analysis and verification.The findings provide an important references with fishery biology and fisheries resources management.
倪震宇, 刘必林, 张健, 蒋瑞, 舒畅. 利用眼柄微结构研究虾蟹类年龄和生长的进展[J]. 大连海洋大学学报, 2019, 34(1): 139-144.
NI Zhen-yu, LIU Bi-lin, ZHANG Jian, JIANG Rui, SHU Chang. Current progresses direct age determination and growth of shrimps and crabs using microstructure of eyestalks: a review. Journal of Dalian Ocean University, 2019, 34(1): 139-144.
2019, Vol. 34 
