Effects of salinity, temperature, light intensity and light regimes on production, growth and reproductive parameters of Apocyclops dengizicus
The effects of salinity, temperature, and light conditions on production and development, longevity, survival and sex ratios of the cyclopoid copepod, A. dengizicus were determined. Seven different salinity levels (5, 10, 15, 20, 25, 30, 35 psu), four temperatures (20, 25, 30, 35 °C), three differen...
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| Format: | Article |
| Language: | English |
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Iranian Fisheries Science Research Institute
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/37393/ http://psasir.upm.edu.my/id/eprint/37393/1/Effects%20of%20salinity.pdf |
| _version_ | 1848848596447789056 |
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| author | Farhadian, Omidvar Md. Yusoff, Fatimah Arshad, Aziz |
| author_facet | Farhadian, Omidvar Md. Yusoff, Fatimah Arshad, Aziz |
| author_sort | Farhadian, Omidvar |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The effects of salinity, temperature, and light conditions on production and development, longevity, survival and sex ratios of the cyclopoid copepod, A. dengizicus were determined. Seven different salinity levels (5, 10, 15, 20, 25, 30, 35 psu), four temperatures (20, 25, 30, 35 °C), three different light intensities (33.3, 85.3, 162.1 μmol photons/ m2/ s) and light regimes (24:0, 0:24, and 12:12 h light:dark regime) were employed . The highest production was achieved under 20 psu salinity. The optimum temperature required for the maximum reproduction and shortest development time was 35 °C. The production was highest (p<.05) and development rate of A. dengizicus was shortest (p<.05) under the lowest light intensity (33.3 μmol photons/ m2/ s). Continuous light (24:0 h LD) showed positive effects on growth and production. Light regimes 24:0 h and 12:12 h LD yielded the highest total production and growth (p<.05), with highest (p<.05) survival percentage. This study demonstrated that A. dengizicus can tolerate wide range of environmental conditions and can be cultured for commercial live feed purposes as well as toxicity studies. |
| first_indexed | 2025-11-15T09:37:01Z |
| format | Article |
| id | upm-37393 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:37:01Z |
| publishDate | 2014 |
| publisher | Iranian Fisheries Science Research Institute |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-373932015-09-15T04:06:07Z http://psasir.upm.edu.my/id/eprint/37393/ Effects of salinity, temperature, light intensity and light regimes on production, growth and reproductive parameters of Apocyclops dengizicus Farhadian, Omidvar Md. Yusoff, Fatimah Arshad, Aziz The effects of salinity, temperature, and light conditions on production and development, longevity, survival and sex ratios of the cyclopoid copepod, A. dengizicus were determined. Seven different salinity levels (5, 10, 15, 20, 25, 30, 35 psu), four temperatures (20, 25, 30, 35 °C), three different light intensities (33.3, 85.3, 162.1 μmol photons/ m2/ s) and light regimes (24:0, 0:24, and 12:12 h light:dark regime) were employed . The highest production was achieved under 20 psu salinity. The optimum temperature required for the maximum reproduction and shortest development time was 35 °C. The production was highest (p<.05) and development rate of A. dengizicus was shortest (p<.05) under the lowest light intensity (33.3 μmol photons/ m2/ s). Continuous light (24:0 h LD) showed positive effects on growth and production. Light regimes 24:0 h and 12:12 h LD yielded the highest total production and growth (p<.05), with highest (p<.05) survival percentage. This study demonstrated that A. dengizicus can tolerate wide range of environmental conditions and can be cultured for commercial live feed purposes as well as toxicity studies. Iranian Fisheries Science Research Institute 2014 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37393/1/Effects%20of%20salinity.pdf Farhadian, Omidvar and Md. Yusoff, Fatimah and Arshad, Aziz (2014) Effects of salinity, temperature, light intensity and light regimes on production, growth and reproductive parameters of Apocyclops dengizicus. Iranian Journal of Fisheries Sciences, 13 (1). pp. 30-46. ISSN 1562-2916 http://www.jifro.ir/browse.php?a_id=1424&sid=1&slc_lang=en |
| spellingShingle | Farhadian, Omidvar Md. Yusoff, Fatimah Arshad, Aziz Effects of salinity, temperature, light intensity and light regimes on production, growth and reproductive parameters of Apocyclops dengizicus |
| title | Effects of salinity, temperature, light intensity and light regimes on production, growth and reproductive parameters of Apocyclops dengizicus |
| title_full | Effects of salinity, temperature, light intensity and light regimes on production, growth and reproductive parameters of Apocyclops dengizicus |
| title_fullStr | Effects of salinity, temperature, light intensity and light regimes on production, growth and reproductive parameters of Apocyclops dengizicus |
| title_full_unstemmed | Effects of salinity, temperature, light intensity and light regimes on production, growth and reproductive parameters of Apocyclops dengizicus |
| title_short | Effects of salinity, temperature, light intensity and light regimes on production, growth and reproductive parameters of Apocyclops dengizicus |
| title_sort | effects of salinity, temperature, light intensity and light regimes on production, growth and reproductive parameters of apocyclops dengizicus |
| url | http://psasir.upm.edu.my/id/eprint/37393/ http://psasir.upm.edu.my/id/eprint/37393/ http://psasir.upm.edu.my/id/eprint/37393/1/Effects%20of%20salinity.pdf |