Nutritional status response of Daphania laevis and Moina micura from a tropical reservoir to different algal diets: Scenedesmus quadricauda and Ankistrodesmus gracilis
The accumulation of lipid reserves was investigated in two common cladoceran species typical of neotropical freshwaters. Experiments were performed in order to measure differential accumulation of lipid reserves in response to two algal diets, S. quadricauda and A. gracilis. The larger D. laevis fed...
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| Format: | Article |
| Language: | English |
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Instituto Internacional de Ecologia
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| Series: | Brazilian Journal of Biology |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842001000400005&lng=en&tlng=en |
| _version_ | 1819119944589115392 |
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| author | C. F. MACEDO R. M. PINTO-CORLHO |
| author_facet | C. F. MACEDO R. M. PINTO-CORLHO |
| author_sort | C. F. MACEDO |
| collection | DOAJ |
| description | The accumulation of lipid reserves was investigated in two common cladoceran species typical of neotropical freshwaters. Experiments were performed in order to measure differential accumulation of lipid reserves in response to two algal diets, S. quadricauda and A. gracilis. The larger D. laevis fed with the Ankistrodesmus diet accumulated a higher amount of total lipids. The average lipid content for both diets was 11.1% and 22.1% dry weight for Scenedesmus and Ankistrodemsus, respectively. This difference was found to be highly significant. The superior nutritional quality of A. gracilis was confirmed by the experiments using the smaller Moina micrura. This cladoceran accumulated 11.4% and 19.9% of the average dry weight of lipids from Scenedesmus and Ankistrodesmus, respectively. The study also found that most lipid reserves are concentrated as triacylglycerols in both cladocerans. The relative contribution of this class of lipids also varied according to the diet. For Daphnia, for instance, the average triacylglycerol levels varied from 6.2 to 11.0 with the Scenedesmus and Ankistrodesmus diets, respectively. |
| first_indexed | 2024-12-22T06:12:49Z |
| format | Article |
| id | doaj.art-a5c44e15d7c544269bd45b49dd768cda |
| institution | Directory Open Access Journal |
| issn | 1678-4375 |
| language | English |
| last_indexed | 2024-12-22T06:12:49Z |
| publisher | Instituto Internacional de Ecologia |
| record_format | Article |
| series | Brazilian Journal of Biology |
| spelling | doaj.art-a5c44e15d7c544269bd45b49dd768cda2022-12-21T18:36:11ZengInstituto Internacional de EcologiaBrazilian Journal of Biology1678-437561455556210.1590/S1519-69842001000400005S1519-69842001000400005Nutritional status response of Daphania laevis and Moina micura from a tropical reservoir to different algal diets: Scenedesmus quadricauda and Ankistrodesmus gracilisC. F. MACEDO0R. M. PINTO-CORLHO1Universidade Federal de Minas GeraisUniversidade Federal de Minas GeraisThe accumulation of lipid reserves was investigated in two common cladoceran species typical of neotropical freshwaters. Experiments were performed in order to measure differential accumulation of lipid reserves in response to two algal diets, S. quadricauda and A. gracilis. The larger D. laevis fed with the Ankistrodesmus diet accumulated a higher amount of total lipids. The average lipid content for both diets was 11.1% and 22.1% dry weight for Scenedesmus and Ankistrodemsus, respectively. This difference was found to be highly significant. The superior nutritional quality of A. gracilis was confirmed by the experiments using the smaller Moina micrura. This cladoceran accumulated 11.4% and 19.9% of the average dry weight of lipids from Scenedesmus and Ankistrodesmus, respectively. The study also found that most lipid reserves are concentrated as triacylglycerols in both cladocerans. The relative contribution of this class of lipids also varied according to the diet. For Daphnia, for instance, the average triacylglycerol levels varied from 6.2 to 11.0 with the Scenedesmus and Ankistrodesmus diets, respectively.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842001000400005&lng=en&tlng=envariation nutritionalcladoceranschlorophyceaeexperiments |
| spellingShingle | C. F. MACEDO R. M. PINTO-CORLHO Nutritional status response of Daphania laevis and Moina micura from a tropical reservoir to different algal diets: Scenedesmus quadricauda and Ankistrodesmus gracilis Brazilian Journal of Biology variation nutritional cladocerans chlorophyceae experiments |
| title | Nutritional status response of Daphania laevis and Moina micura from a tropical reservoir to different algal diets: Scenedesmus quadricauda and Ankistrodesmus gracilis |
| title_full | Nutritional status response of Daphania laevis and Moina micura from a tropical reservoir to different algal diets: Scenedesmus quadricauda and Ankistrodesmus gracilis |
| title_fullStr | Nutritional status response of Daphania laevis and Moina micura from a tropical reservoir to different algal diets: Scenedesmus quadricauda and Ankistrodesmus gracilis |
| title_full_unstemmed | Nutritional status response of Daphania laevis and Moina micura from a tropical reservoir to different algal diets: Scenedesmus quadricauda and Ankistrodesmus gracilis |
| title_short | Nutritional status response of Daphania laevis and Moina micura from a tropical reservoir to different algal diets: Scenedesmus quadricauda and Ankistrodesmus gracilis |
| title_sort | nutritional status response of daphania laevis and moina micura from a tropical reservoir to different algal diets scenedesmus quadricauda and ankistrodesmus gracilis |
| topic | variation nutritional cladocerans chlorophyceae experiments |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842001000400005&lng=en&tlng=en |
| work_keys_str_mv | AT cfmacedo nutritionalstatusresponseofdaphanialaevisandmoinamicurafromatropicalreservoirtodifferentalgaldietsscenedesmusquadricaudaandankistrodesmusgracilis AT rmpintocorlho nutritionalstatusresponseofdaphanialaevisandmoinamicurafromatropicalreservoirtodifferentalgaldietsscenedesmusquadricaudaandankistrodesmusgracilis |