中国水产科学2025，Vol.32Issue(1)：83-92,10.DOI:10.12264/JFSC2024-0243
高通量测序分析东山湾代表性鱼类对污损生物的摄食差异
Analysis of feeding differences on fouling organisms of representative fish species in Dongshan Bay,Fujian by high-throughput sequencing
摘要
Abstract
Biofouling refers to the phenomenon where fouling organisms attach to and accumulate on artificial surfaces,adversely impacting human production activities.In recent years,the economic losses caused by biofouling have accounted for a substantial portion of the production costs in China's mariculture industry.However,current control technologies remain inadequate,highlighting the urgent need to develop green and sustainable control strategies tailored to marine aquaculture environment.Using trophic cascade effects to control fouling organisms has become a focal point of recent research.This approach enables the selection of different biological agents based on the specific environmental characteristics of a given marine area,achieving effective control of fouling organisms while also providing certain economic benefits.This study focused on the selection of representative fish species including Siganus canaliculatus,Sparus latus,Rhabdosargus sarba,and Triacanthus biaculeatus,from the Dongshan Bay region of the Fujian Province,to evaluate their potential as ecological controllers of biofouling in Dongshan Bay.High-throughput sequencing technology was used to analyze the 18S rDNA gene sequences within the digestive tracts of these four fish species to elucidate their dietary composition and assess the differences in their consumption of fouling organisms.The results indicated significant differences in the dietary composition of the four fish species.Triacanthus biaculeatus predominantly consumed osteichthyes,displaying a strong carnivorous preference,while Siganus canaliculatus,Sparus latus,and Rhabdosargus sarba exhibited omnivorous feeding habits.Notably,Sparus latus showed a preference for herbivorous diet,while Rhabdosargus sarba tended towards carnivorous prey.Of particular interest is the finding that Siganus canaliculatus demonstrated an obvious preference for consuming fouling organisms,particularly ascidians,as a major component of its diet.Furthermore,the study revealed that larger individuals of Siganus canaliculatus[(180±2)mm]consumed a greater quantity and variety of ascidians than smaller individuals[(120±2)mm].This study highlights the potential application of Siganus canaliculatus in the ecological control of biofouling,providing new scientific insights and theoretical support for the development of ecological biofouling control strategies and methods.关键词
生物污损/食性/长鳍篮子鱼/海鞘/18SrDNAKey words
biofouling/feeding habit/Siganus canaliculatus/Ascidiacea/18S rDNA分类
农业科技引用本文复制引用
谭清元,张方圆,赵峰,杨刚,张涛..高通量测序分析东山湾代表性鱼类对污损生物的摄食差异[J].中国水产科学,2025,32(1):83-92,10.基金项目
国家重点研发计划项目(2022YFC2601305) （2022YFC2601305）
上海市科技兴农项目[沪农科创字(2022)第2-1号]. （2022）
