海洋开发与管理2025，Vol.42Issue(5)：68-79,12.
基于Brey估算模型的大型底栖动物次级生产力年际变化
Annual Variation of Secondary Productivity of Macroben-Thos Based on Brey Estimation Model:Taking the Ecological Monitoring Area in Eastern Fujian as an Example
摘要
Abstract
In this study,we took the East Fujian ecological monitoring area as an example,using Brey's empirical formula to analyzed the characteristics of Macrobenthos Community Structure and the interannual variation of secondary productivity based on the survey data of macrobenthos from 2007 to 2019.The results showed that Annelida has always been the first dominant group of macrobenthos from 2007 to 2019,the main dominant species were Sternaspis scutata,Xenophthalmus pinnotheroides,Aglaophamus dibranchis and Heteromastus filiforms,the replacement of dominant species was obvious.The average annual biomass and abundance of macrobenthos were 24.77g/m2 and 83.77ind/m2 respectively,and the average annual secondary productivity was 2.18 g(AFDW)/(m2·a).Annelids,molluscs and echinoderms were the main contributors to secondary productivity,the interannual secondary productivity fluctuates in a nearly normal distribution,showed a downward to upward to downward to upward to downward trend,the interannual variation trend of P/B value was just opposited to that of sec-ondary productivity.The horizontal distribution of secondary productivity shows a trend that far shore was lower than near shore.2013-2019 compared with 2007-2012,annelids gradually miniaturized,the decrease of the community contribution ratio,biomass and abundance of mol-luscs and echinoderms resulted in the decrease of secondary productivity,the increase of P/B value showed that over time,there were more Macrobenthos with small individuals,short life history,rapid reproduction,high reproduction rate and strong adaptability to environmental changes.关键词
大型底栖动物/次级生产力/Brey经验公式/闽东生态监控区Key words
Macrobenthos/Secondary production/Brey's empirical formula/Ecological monitoring area of eastern Fujian分类
生物学引用本文复制引用
程宏,郑碧琪,夏永健,马祖友,夏煜,魏雪萍,余巧艳,刘炜..基于Brey估算模型的大型底栖动物次级生产力年际变化[J].海洋开发与管理,2025,42(5):68-79,12.基金项目
自然资源部海洋生态监测与修复技术重点实验室开放基金"核电冷源致灾生物声呐在线监测及预警技术研究"(MEMRT202410) （MEMRT202410）
自然资源部海洋生态监测与修复技术重点实验室开放基金"新型海地瓜定量调查装置设计及其应用研究"(MEMRT202206) （MEMRT202206）
自然资源部海洋生态监测与修复技术重点实验室开放基金"福州滨海新城砂质岸线整治与修复效果评估研究"(MEMRT202110) （MEMRT202110）
国家海洋公益性行业科研专项项目"海洋站生态环境长期综合观测系统集成技术研究与示范"(201505007). （201505007）
