Effects of algae particle size on the breathing and feeding of filter-feeding silver carp (Hypophthalmichthys molitrix Val.)

2016 ◽  
Vol 48 (6) ◽  
pp. 3102-3110
Author(s):  
Zhigang Zhao ◽  
Shuanglin Dong ◽  
Fang Wang ◽  
Xiangli Tian ◽  
Qinfeng Gao ◽  
...  
Aquaculture ◽  
2011 ◽  
Vol 319 (1-2) ◽  
pp. 178-183 ◽  
Author(s):  
Zhigang Zhao ◽  
Shuanglin Dong ◽  
Fang Wang ◽  
Xiangli Tian ◽  
Qinfeng Gao

Aquaculture ◽  
2014 ◽  
Vol 433 ◽  
pp. 133-136 ◽  
Author(s):  
Zhigang Zhao ◽  
Shuanglin Dong ◽  
Fang Wang ◽  
Xiangli Tian ◽  
Qinfeng Gao

2000 ◽  
Vol 27 (2) ◽  
pp. 1033-1039
Author(s):  
M. Fukushima ◽  
N. Takamura ◽  
B. H. Kim ◽  
M. Nakagawa ◽  
L. Sun ◽  
...  

1985 ◽  
Vol 42 (12) ◽  
pp. 1940-1945 ◽  
Author(s):  
Daniel Wilkins Smith

A method is proposed to control phytoplankton biomass in aquacultural ponds, using both zooplankton and filter-feeding silver carp (Hypophthalmichthys molitrix). The technique maintains co-existence of zooplankton and filter-feeding fish by excluding the fish from part of the water column. Zooplankton, which feed on smaller algal species, and silver carp, which feed on large algae and zooplankton, together can consume all sizes of phytoplankton, thus controlling algal biomass. This technique was tested in 1000-L tanks, some containing channel catfish (Ictalurus punctatus) alone, some both catfish and silver carp, and others catfish and silver carp with a zooplankton refuge. The refuge permitted coexistence of high densities of large zooplankters with the filter-feeding fish. This combination of filter-feeders reduced algal biomass by as much as 99%, increased phytoplankton diversity, and showed a trend toward improved silver carp growth compared with treatments without a refuge. The proposed technique could be applied to both intensive and extensive aquacultural systems.


2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Tao Yin ◽  
Jae W. Park ◽  
Shanbai Xiong

Qualities of silver carp surimi (SCS) gels incorporated with micron fish bone of different particle size (22 to 0.12 μm) were evaluated. Textural values, whiteness, and water holding capacity of the SCS gels with setting significantly increased (P<0.05) as the micron fish bone particle size decreased. As the particle size decreased, more calcium ion was apparently released from the fish bone (P<0.05). Consequently the released calcium ion increased the activity of endogenous transglutaminase (TGase) and resulted in the formation of more myosin heavy chain (MHC) cross-links in the SCS gel with setting. Fish bone with particle size below 0.48 μm was steadily trapped in the three-dimensional SCS gel network without disrupting the matrices. Results indicated that size reduction of the incorporated micron fish bone improved qualities of the SCS gel with setting by the means of releasing more calcium ion and maintaining better gel matrices.


2008 ◽  
Vol 8 ◽  
pp. 169-175 ◽  
Author(s):  
Zhixin Ke ◽  
Xie Ping ◽  
Longgen Guo

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.


Sign in / Sign up

Export Citation Format

Share Document