scholarly journals Food content and the mutual effects between Hypophthalmichthys molitrix (Cuvier et Valenciennes) and Aristichthys nobilos(Richardson) and Coilia ectenes taihuensis Yen et Lin in Lake Taihu

2007 ◽  
Vol 19 (4) ◽  
pp. 451-456 ◽  
Author(s):  
LIU Ensheng ◽  
◽  
LIU Zhengwen ◽  
BAO Chuanhe ◽  
WU Linkun ◽  
...  
Keyword(s):  
Lake Taihu ◽  
Hypophthalmichthys Molitrix ◽  
Coilia Ectenes ◽  
Food Content

scholarly journals Diversity of Intestinal Microbiota in Coilia ectenes from Lake Taihu, China

2017 ◽  
Vol 12 (1) ◽  
pp. 315-325 ◽  
Author(s):  
Jinrong Duan ◽  
Dongpo Xu ◽  
Kai Liu ◽  
Yanfeng Zhou ◽  
Pao Xu
Keyword(s):  
Chlorophyll A ◽  
Total Nitrogen ◽  
Intestinal Microbiota ◽  
High Throughput Sequencing ◽  
Lake Taihu ◽  
Geographical Location ◽  
Operational Taxonomic Units ◽  
Coilia Ectenes ◽  
Geographical Locations

AbstractTo investigate the community structure and species composition of intestinal microbiota in Coilia ectenes, sixty-seven samples were collected from Lake Taihu in China. The intestinal microbiota of the C. ectenes were identified by the V4 of the 16S ribosomal RNA gene using high-throughput sequencing. Furthermore, the water quality of different sampling sites was also evaluated. A total of 53 phyla and 730 classified genera were found in all the samples. The eight dominant phyla Planctomycetes, Firmicutes, Proteobacteria, Bacteroidetes, Cyanobacteria, Crenarchaeota, Actinobacteria, and Verrucomicrobia were included. The intestinal microbiota compositions of the C. ectenes obtained from the same location presented more similar profiles, and the intestinal microbiota compositions of the C. ectenes from different geographical locations showed considerable differences. The operational taxonomic units (OTUs) abundance of the intestinal microbiota was significantly correlated with both the concentrations of total nitrogen and chlorophyll-a of the aquatic environment (p<0.05). Geographical location was an important determinant for the fish’s intestinal microbiota composition. The intestinal microbiota of C. ectenes would be affected by the concentrations of total nitrogen and chlorophyll-a in the water. These findings achieve a basic understanding of fish’s gut microbiota, and are helpful for the protection of fish resources in Lake Taihu and provided the cornerstone to sustainable utlization of C. ectenes.

scholarly journals Seasonal variations in the diets of Coilia ectenes taihuensis Yen et Lin in Gonghu Bay of Lake Taihu

2012 ◽  
Vol 24 (5) ◽  
pp. 765-770 ◽  
Author(s):  
YU Jinlei ◽  
◽  
HE Hu ◽  
LI Kuanyi ◽  
CHEN Feizhou ◽  
...  
Keyword(s):  
Seasonal Variations ◽  
Lake Taihu ◽  
Coilia Ectenes

Comparison of high-throughput sequencing analysis of gut contents between silver carp Hypophthalmichthys molitrix and bighead carp Hypophthalmichthys nobilis in mesotrophic and eutrophic lakes

2020 ◽  
Vol 71 (7) ◽  
pp. 761
Author(s):  
Chaoqun Su ◽  
Wenjing Hu ◽  
Zhongjun Hu ◽  
Zhen Zhang ◽  
Oranich Wedchaparn ◽  
...  
Keyword(s):  
High Throughput ◽  
High Throughput Sequencing ◽  
Lake Taihu ◽  
Silver Carp ◽  
Bighead Carp ◽  
Gut Contents ◽  
Sequencing Analysis ◽  
Hypophthalmichthys Molitrix ◽  
Eutrophic Lakes ◽  
Hypophthalmichthys Nobilis

High-throughput sequencing analysis of gut contents was used to study the feeding habits of two filter-feeding fish, namely silver carp Hypophthalmichthys molitrix and bighead carp Hypophthalmichthys nobilis, in mesotrophic Lake Qiandao and eutrophic Lake Taihu. Silver carp feed primarily on phytoplankton, with a feeding preference for Chlorophyta, in Lake Qiandao and rely on phytoplankton in Lake Taihu. Bighead carp feed more on zooplankton in Lake Qiandao and on phytoplankton in Lake Taihu. With increasing levels of algae, bighead carp feed more on phytoplankton. The dietary shifts suggest that bighead carp would be useful in controlling nuisance algae in lakes.

scholarly journals Seasonal variations in the diet composition of Coilia ectenes taihuensis in different ecotypes of Lake Taihu

2016 ◽  
Vol 28 (5) ◽  
pp. 1078-1085 ◽  
Author(s):  
WANG Yinping ◽  
◽  
GU Xiaohong ◽  
ZENG Qingfei ◽  
MAO Zhigang ◽  
...  
Keyword(s):  
Seasonal Variations ◽  
Diet Composition ◽  
Lake Taihu ◽  
Coilia Ectenes

scholarly journals Phenotypic Plasticity in Gut Length in the Planktivorous Filter-Feeding Silver Carp (Hypophthalmichthys molitrix)

2008 ◽  
Vol 8 ◽  
pp. 169-175 ◽  
Author(s):  
Zhixin Ke ◽  
Xie Ping ◽  
Longgen Guo
Keyword(s):  
Phenotypic Plasticity ◽  
Lake Taihu ◽  
Silver Carp ◽  
Stocking Density ◽  
Food Resources ◽  
Hypophthalmichthys Molitrix ◽  
Filter Feeding ◽  
Field Evidence ◽  
Significant Difference ◽  
Gut Length

Phenotypic plasticity widely exists in the external morphology of animals as well as the internal traits of organs. In the present study, we studied the gut length plasticity of planktivorous filter-feeding silver carp under different food resources in large-net cage experiments in Meiliang Bay of Lake Taihu in 2004 and 2005. There was a significant difference in stocking density between these 2 years. Under a low stocking density and abundant food resources, silver carp increased their energy intake by feeding on more zooplankton. Meanwhile, silver carp adjusted their gut length to match the digestive requirements of food when exposed to different food resources. In the main growth seasons (from April to October), silver carp significantly increased their relative gut length when feeding on more phytoplankton in 2005 (p< 0.01, 9.23 ± 1.80 in 2004 and 10.77 ± 2.05 in 2005, respectively). There was a nearly significant negative correlation between zooplankton proportion in the diet and the relative gut length when silver carp were stocked in a high density (p= 0.112). It appears that silver carp might have evolved plasticity to change their gut length rapidly to facilitate efficient utilization of food resources. Such resource polymorphisms in the gut may be a good indication of temporal adaptation to resource conditions. Our work provided field evidence for understanding the functional basis of resource polymorphisms and the evolution of phenotypic plasticity in planktivorous filter-feeding fish.

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