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Meiobenthos as food for farmed shrimps in the earthen ponds: Implications for sustainable feeding
Huang, Qian1,2; Olenin, Sergej2; Li, Li3; Sun, Song4,5; De Troch, Marleen1
Source PublicationAQUACULTURE
Corresponding AuthorHuang, Qian(
AbstractShrimp farming in earthen pond is one of the largest seafood growing industries among coastal mariculture, but it has faced environmental issues in recent years, e.g. overloading of supplementary feed cause deterioration of pond environments. In order to assess the impact of pond shrimp farming on the benthic environment, we investigated the changes in environmental variables and meiobenthic community structure during January to August in the earthen ponds rearing Marsupenaeus japonicas and Litopenaeus vannamei. Water and sediment samples were taken in January (before aquaculture), May (early stage) and August (late stage). We found sedimentary redox potential showed values below -150 mV in all ponds in the early and late rearing stages, indicating overall reduced and anoxic conditions. Sedimentary bulk organic matter (total nitrogen and organic carbon) accumulated along with the feeding addition during the rearing period. We found meiobenthic community structure to change over different rearing stages mainly because of an increase in nematode densities that was associated with shrimp farming activity in the studied ponds. We also investigated the functional roles of pond biota and supplementary feed by studying the benthic food web in these ponds by means of natural stable isotope ratios of carbon and nitrogen and fatty acid biomarkers in the early (May) and late (August) rearing stages. Pond biota (i.e. microalgae and meiobenthos) contributed abundantly to the diets of the two shrimp species. In the early stage, meiobenthos shared similar diets with shrimps (with both feeding on primary organic sources) and they could thus potentially compete for resources. At late rearing stages, meiobenthos represented however a functional link between primary producers and shrimps, serving as nutritional food sources for shrimp and providing them high amounts of polyunsaturated fatty acids (PUFAs). We found that the supplementary feed was not substantially consumed by the two shrimp species, which might pose an overfeeding threat to deteriorate the pond environment.
KeywordShrimp farming Meiobenthos Pond biota Food quality Sustainable feeding
Indexed BySCI
Funding ProjectDoctoral Programme on Marine Ecosystem Health and Conservation[MARES_12_05] ; EMBRC Belgium - FWO project[GOH3817N] ; Special Research Fund of Ghent University (BOF-UGent)
WOS Research AreaFisheries ; Marine & Freshwater Biology
WOS SubjectFisheries ; Marine & Freshwater Biology
WOS IDWOS:000521282400054
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorHuang, Qian
Affiliation1.Univ Ghent, Biol Dept, Marine Biol, Krijgslaan 281-S8, B-9000 Ghent, Belgium
2.Klaipeda Univ, Marine Res Inst, Univ Al 17, LT-92294 Klaipeda, Lithuania
3.Ocean Univ China, Fisheries Coll, Key Lab Mariculture, Minist Educ, Qingdao 266003, Peoples R China
4.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
5.Univ Chinese Acad Sci, Coll Marie Sci, Beijing 10004, Peoples R China
Recommended Citation
GB/T 7714
Huang, Qian,Olenin, Sergej,Li, Li,et al. Meiobenthos as food for farmed shrimps in the earthen ponds: Implications for sustainable feeding[J]. AQUACULTURE,2020,521:13.
APA Huang, Qian,Olenin, Sergej,Li, Li,Sun, Song,&De Troch, Marleen.(2020).Meiobenthos as food for farmed shrimps in the earthen ponds: Implications for sustainable feeding.AQUACULTURE,521,13.
MLA Huang, Qian,et al."Meiobenthos as food for farmed shrimps in the earthen ponds: Implications for sustainable feeding".AQUACULTURE 521(2020):13.
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