Prof. Xinjun Chen is the Dean of the College of Marine Sciences at the Shanghai Ocean University. He is also director of the National Ocean Fisheries Engineering and Technology Research Center, director of the Key Laboratory of the Ministry of Education for the Sustainable Development of Ocean Fisheries Resources, director of the key laboratory of ocean fisheries development of the Ministry of Agriculture, director of the China Ocean Fisheries Data Center, and head of the squid fishing technology group of the China Ocean Fisheries Association. He serves as a member of the Fisheries Group of the Sixth and Seventh Subject Review Group of the Academic Degrees Committee of the State Council, and Associate Editor of Canadian Journal of Fishery and Aquatic Sciences, and the editorial board of Aquaculture and Fishery. He presided over or participated in nearly 70 provincial, ministerial and national projects, including 4 projects on the National Science Fund, and served as thechief of the national project of the National Plan 863 during the 12-five years and the national project of the National Plan "Blue Granary" during the 13-five years. He received 3 excellent teaching materials, 2 provincial and ministerial quality courses, and 2 provincial and ministerial teaching results. He won 23 national, provincial ministerial, and industry awards, and edited 35 books and textbooks. A total of nearly 600 papers were published, of which more than 600 were published in the CSCD and SCI.

Prof. Bilin Liu is the deputy director of the Key Laboratory of the Ministry of Education for Sustainable Development of Oceanic Fisheries Resources, deputy director of the 10th Youth Working Committee of the Chinese Fisheries Society, special professor of Shanghai "Oriental Scholar". He was selected as one of the "Pujiang Talents" programs, and the first "China Aquatic Science and Technology Youth". He is mainly engaged in the research of marine biology,fisheries resources biology, ecology, and life history of fish populations based on biogeochemistry. He has presided over more than 10 projects such as the National Natural Science Foundation of China. He has been awarded 8 provincial and ministerial awards, including the First Prize of Shanghai Science and Technology Progress. He has published more than 150 papers in domestic and foreign academic journals, including more than 40 SCI papers, more than 10 monographs and teaching materials, and more than 10 international and domestic invention patents. He has guided college students to participate in various innovation and entrepreneurship and discipline competitions and won three national awards and five provincial and ministerial awards.

Presents Life history and early development of fish

Introduces sexual characteristics and sexual maturation of fish, breeding habits, and fish breeding strategy

Covers ring formation, their identification materials, scale structure, and age identification methods

Chapter 1 Introduction

Section 1 Basic concepts and characteristics of fishery resources

Section 2 Concept and research content of the biology of fishery resources

Section 3 Significance of biological studies on fishery resources

Chapter 2 Fish population and its research methods

Section 2 Population structure and its change rule

Section 3 Methods of population identification

Section 5 Population growth and its regulation

Section 6 Case study of population identification

Chapter 3 Life History and early development of fish

Section 1 Life History and life span of fish

Section 2 Early development of fish

Section 3 Main points of morphology and identification of fish eggs, larvae and juveniles

Section 4 Analysis of environmental factors affecting larval survival

Chapter 4 Fish age and growth

Section 1 Significance of studying fish age and growth

Section 2 General principles of ring formation and their identification materials

Section 4 Fish otoliths and age identification

Section 5 Lipofuscin and age identification of crustaceans

Section 7 Other identification methods of the age of fishes

Section 8 Fish growth and its determination method

Chapter 5 Sexual maturation, reproductive habits and fecundity of fish

Section 1 Sexual characteristics and sexual maturation of fish

Section 2 Breeding habits

Section 3 Concept and measuring method of fecundity

Section 4 Fish breeding strategy

Section 5 Case study: Sexual maturation and reproductive habits of cephalopods

Chapter 6 Fish food, feeding habits and interspecific relationship

Section 1 Fish feeding relationship and food chain

Section 2 Fish feeding type

Section 4 Food security of Fish

Section 5 food intake of fish study method

Chapter 7 Fish aggregations and migratory distributions

Section 1 Fish aggregations

Section 3 Research methods of fish migration