Iranian Journal of Fisheries Sciences
مجله علوم شیلاتی ایران
IJFS
Agriculture
http://jifro.ir
1
admin
1562-2916
10.18869/acadpub.ijfs
en
jalali
1397
4
1
gregorian
2018
7
1
17
3
online
1
fulltext
other
Nitrogen and phosphorous budgets for integrated culture of whiteleg shrimp Litopenaeus vannamei with red seaweed Gracilaria corticata in zero water exchange system
Biology & physiology
Biology & physiology
پژوهشي
Orginal research papers
In this study, a 2×3 factorial design with two levels of shrimp density (25 and 50 shrimp per m<sup>2</sup>) and three levels of red algae density (0, 200 and 400g per m<sup>2</sup>) was applied to calculate nitrogen and phosphorous budgets in the integrated culture of <em>Litopenaeus vannamei</em> with <em>Gracilaria corticata</em> during 45 days in a zero water exchange system. Juveniles of <em>L. vannamei</em> (5.82±0.11 g) and <em>G</em>. <em>corticata </em>were cultured in 18 round 1 m<sup>3</sup> poly ethylene tanks. Water temperature, dissolved oxygen (DO), pH and salinity were measured once every 3 days. Results indicated that shrimp density had a significant effect on pH and DO in the morning and in the afternoon. The algal density didn’t have a significant effect on pH and DO in culturing tanks (<em>p</em>>0.05). According to the results of this study, the main source of nitrogen and phosphorus input to the tanks during a 45- day culturing period was from feeds. Shrimp and algal densities significantly affect the concentration of total ammonia, nitrite, nitrate and phosphate in water and an increase in shrimp density led to an increase of these compounds whereas, increasing the algal density led to the reduction of these compounds. Results indicated that increasing the density of <em>G.corticata</em> in all treatments, led to an increase in biomass of harvested shrimp and the co-culture of <em>G.</em> <em>corticata</em> with <em>L.vannamei</em> decreased the amount of nitrogen and phosphorus in both water and sediments and improved the water quality of <em>L</em>.<em>vannamei </em>culture.
Nitrogen budget, Phosphorous budget, Litopenaeus vannamei, Gracilaria corticata, Zero water exchange
471
486
http://jifro.ir/browse.php?a_code=A-10-1054-6&slc_lang=other&sid=1
H.
Fourooghifard
fourooghifard@yahoo.com
100319475328460029535
100319475328460029535
Yes
Persian Gulf and Oman Sea Ecological Research Center, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Bandar Abbas, Iran,
Persian Gulf and Oman Sea Ecological Research Center, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Bandar Abbas, Iran,
A.
Matinfar
100319475328460029536
100319475328460029536
No
Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Tehran, Iran
M. S.
Mortazavi
100319475328460029537
100319475328460029537
No
Persian Gulf and Oman Sea Ecological Research Center, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Bandar Abbas, Iran,
Persian Gulf and Oman Sea Ecological Research Center, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Bandar Abbas, Iran,
K.
Roohani Ghadikolaee
100319475328460029538
100319475328460029538
No
Persian Gulf and Oman Sea Ecological Research Center, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Bandar Abbas, Iran,
Persian Gulf and Oman Sea Ecological Research Center, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Bandar Abbas, Iran,
M.
Mirbakhsh
100319475328460029539
100319475328460029539
No
Shrimp Research Center, Iranian Fisheries Sciences Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Bushehr, Iran
Shrimp Research Center, Iranian Fisheries Sciences Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Bushehr, Iran