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NISCAIR ONLINE PERIODICALS REPOSITORY (NOPR) >
NISCAIR PUBLICATIONS >
Research Journals >
Indian Journal of Geo-Marine Sciences (IJMS) >
IJMS Vol.41 [2012] >
IJMS Vol.41(4) [August 2012] >
| Title: | Effect of temperature, salinity and algal food concentration on population density, growth and survival of marine copepod Oithona rigida Giesbrecht |
| Authors: | Santhanam, P
Perumal, P |
| Keywords: | Copepod
Oithona rigida
Nauplii
Culture
Chlorella marina |
| Issue Date: | Aug-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | In the present study the copepod, Oithona rigida was reared successfully
fed with different algal diets such as Chlorella
marina, Coscinodiscus centralis, Skeletonema costatum and Chaetoceros
affinis in the hatchery condition. The total mean production of different
stages of O. rigida viz., nauplii, copepodid and adults
were: 21120.79, 8205.6 and 4949.9 L-1 respectively. Maximum density
(3679.3 L-1) of nauplii was attained on 11th day of
culture. The egg diameter of O. rigida
was reported as 0.003 mm,
just hatched nauplius (Nauplius I) and last nauplius (Nauplius VI) were 0.098
and 0.184 mm
respectively. The length of early copepodid and the adult female and male were
0.312; 0.745 and 0.699 mm
respectively. It is inferred that the water quality parameters such as
temperature, salinity and algal prey essentially influenced the population,
growth and survival of O. rigida in
captive condition. The density obtained during the two months culture period
indicated that, O. rigida is more sufficient for commercial seed
production of fish and crustacean larvae. |
| Page(s): | 369-376 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1033 (Online); 0379-5136 (Print) |
| Source: | IJMS Vol.41(4) [August 2012]
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