scholarly journals THE EFFECTS OF WATER TEMPERATURE REGIME FLUCTUATIONS ON THE EMBRYONIC DEVELOPMENT OF SILVER CARP (HYPOPHTHALMICHTHYS MOLITRIX)

2015 ◽  
pp. 96-107
Author(s):  
А. Vodyanitskyi ◽  
◽  
А. Potrokhov ◽  
О. Zinkovskyi ◽  
◽  
...  
Keyword(s):  
Embryonic Development ◽  
Water Temperature ◽  
Temperature Regime ◽  
Silver Carp ◽  
Hypophthalmichthys Molitrix

scholarly journals Peculiarities of Hypophthalmichthys molitrix (Valenciennes, 1844) Embryonic Development Under Conditions of Artificial Reproduction in Uzbekistan

2020 ◽  
Vol 6 (5) ◽  
pp. 83-88
Author(s):  
A. Ashrapov ◽  
Kh. Yuldoshev ◽  
B. Kamilov
Keyword(s):  
Embryonic Development ◽  
Water Temperature ◽  
Silver Carp ◽  
Mixed Feeding ◽  
Artificial Reproduction ◽  
Hypophthalmichthys Molitrix ◽  
Exogenous Feeding ◽  
Local Conditions ◽  
Main Method ◽  
Stimulation Of

Embryonic development of Silver Carp (Hypophthalmichthys molitrix) was studied; the species was introduced from China to Uzbekistan in the early 1960s. More than 10 generation changes were taken place in local conditions. Artificial reproduction by using gonadotropic stimulation of ripening and eggs incubation is main method to provide reproduction of the species in the country. Embryonic development passed normally. A larvae hatching occurs after 32 hours after fertilization at water temperature 21–23 °C, transition to mixed feeding of larvae after 4 days, to exogenous feeding after 5 days. Embryonic development rate is some higher than in 1960–1980s in local conditions and higher than in the river Yangtze. Construction of water supply in hatchery provides more stable water temperature without noticeable changing in night.

Impact of Feeding Activity of Silver Carp on Plankton Removal from a High-Rate Pond Effluent

2005 ◽  
Vol 40 (2) ◽  
pp. 191-201 ◽  
Author(s):  
Nadia Berday ◽  
Driss Zaoui ◽  
Abdeljaouad Lamrini ◽  
Mustapha Abi
Keyword(s):  
Feeding Activity ◽  
Silver Carp ◽  
Treatment Plant ◽  
High Rate ◽  
Fish Pond ◽  
Gut Contents ◽  
Hypophthalmichthys Molitrix ◽  
Technology System ◽  
Solids Concentration ◽  
Plankton Communities

Abstract The effect of silver carp (Hypophthalmichthys molitrix Val.) feeding activity on the plankton communities in a high-rate pond technology system (HRPTS) effluent was investigated over a period of 100 days. The experiment was conducted at the experimental wastewater treatment plant of the Agronomic and Veterinary Medicine Institute (AVI) of Rabat, Morocco, using a HRPTS in a fish pond receiving the plant effluent. The effluent was highly dominated by phytoplankton (99.95%). Silver carp could survive and grow in the fish pond. Production was 37 kg with a very low mortality rate (12%). The high specific intestine weight (7%) and intake rates of biomass and phytoplankton by silver carp (616 g kg-1 of fish day-1 and 1.6 x 1011 cell kg-1 of fish day-1, respectively) demonstrated the importance of the feeding activity of the fish. Zooplankton intake rates were lower (2 x 107 bodies kg-1 of fish day-1). The high intestine index (3 to 4.3 for fish sizes of 14 to 22 cm) and the dominance of phytoplankton in the gut contents (99.95%) confirmed an omnivorous/ phytoplanctivorous diet. Silver carp were efficient in removing plankton from the HRPTS effluent. The net removal yields of biomass were 285 g m-3 day-1 and 322 g kg-1 of fish day-1, 7 x 1010 algal cells kg-1 of fish day-1 and 8.7 x 107 zooplankton bodies kg-1 of fish day-1, with net removal rates of 47, 64 and 62%, respectively. The total suspended solids concentration decreased from 211 in the inflow to 112 mg L-1 in the fish pond.

The effects of water hardness on the hatching and viability of silver carp (Hypophthalmichthys molitrix) eggs

Aquaculture ◽  
1987 ◽  
Vol 64 (2) ◽  
pp. 111-118 ◽  
Author(s):  
Angelito C. Gonzal ◽  
Emiliano V. Aralar ◽  
Josefina Ma.F. Pavico
Keyword(s):  
Silver Carp ◽  
Water Hardness ◽  
Hypophthalmichthys Molitrix

scholarly journals Genetic relationships among founders of a silver carp (Hypophthalmichthys molitrix) genetic improvement program in Bangladesh

Aquaculture ◽  
2021 ◽  
pp. 736715
Author(s):  
Matthew G. Hamilton ◽  
Wagdy Mekkawy ◽  
Benoy K. Barman ◽  
Md. Badrul Alam ◽  
Manjurul Karim ◽  
...  
Keyword(s):  
Genetic Improvement ◽  
Genetic Relationships ◽  
Silver Carp ◽  
Hypophthalmichthys Molitrix ◽  
Improvement Program

scholarly journals Intensity of parasitic infestation in silver carp, Hypophthalmichthys molitrix

2012 ◽  
Vol 13 (12) ◽  
pp. 1024-1028 ◽  
Author(s):  
M. M. Alam ◽  
M. A. Khan ◽  
M. A. Hussain ◽  
D. Moumita ◽  
A. G. Mazlan ◽  
...  
Keyword(s):  
Silver Carp ◽  
Parasitic Infestation ◽  
Hypophthalmichthys Molitrix
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