The bioenergetic fuel for non-feeding larval development in an endemic palaemonid shrimp from the Iberian Peninsula, Palaemonetes zariquieyi
17 pages, 4 figures, 3 tables
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| Language: | English |
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Taylor & Francis
2013-11
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| Subjects: | Ontogeny, Lecithotrophy, Freshwater, Caridea, Shrimp, Chemical compositions, Lipid, Palaemonetes zariquieyi, |
| Online Access: | http://hdl.handle.net/10261/90096 http://dx.doi.org/10.13039/501100001655 http://dx.doi.org/10.13039/501100002848 http://dx.doi.org/10.13039/100007652 |
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dig-icm-es-10261-900962020-12-09T16:53:03Z The bioenergetic fuel for non-feeding larval development in an endemic palaemonid shrimp from the Iberian Peninsula, Palaemonetes zariquieyi Urzúa, Ángel Guerao, Guillermo Cuesta, José A. Rotllant, Guiomar Estévez, Alicia Anger, Klaus German Academic Exchange Service Comisión Nacional de Investigación Científica y Tecnológica (Chile) CSIC - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA) Ontogeny Lecithotrophy Freshwater Caridea Shrimp Chemical compositions Lipid Palaemonetes zariquieyi 17 pages, 4 figures, 3 tables Palaemonetes zariquieyi, an endemic palaemonid species of shrimp that lives in freshwater and brackish coastal habitats in eastern Spain, shows an abbreviated, non-feeding larval development comprising only three zoeal stages. To identify the endogenous bioenergetic fuel that allows for food-independent development from hatching to metamorphosis, larvae were reared under controlled laboratory conditions, and ontogenetic changes in dry weight (W), elemental (CHN), and lipid composition (total lipids, principal lipid classes, and fatty acids [FA]) were quantified at the onset of each zoeal stage and in the first juvenile. Values of W, C, and H per larva and per mass unit of W decreased throughout the time of larval development, while the N content showed only a weak decline (suggesting strong lipid but only little protein degradation). Correspondingly, directly measured values of total lipids (both in μg/larva and in % of W) decreased gradually, with neutral lipids (NL) consistently remaining the predominant and most strongly used fraction; sterol esters and waxes were not detected. In contrast to the NL, the fraction of polar lipids (PL) per larva remained stable and, as a consequence, tended to increase as a percentage of total lipids. Likewise, other important lipid fractions such as free FA and cholesterol remained stable throughout the time of larval development. Among the FA, palmitic (16:0), oleic (18:1n-9), linoleic (18:2n-6), and eicosapentaenoic (20:5n-3) acid were predominant, showing a significant decrease during larval development; stearic (18:0), vaccenic (18:1n-7), and arachidonic acid (20:4n-6) were found only in small amounts. Our results indicate that the lecithotrophic development of P. zariquieyi is primarily fuelled by the utilization of lipids (especially triacylglycerides and other NL), which is reflected by a decreasing carbon content. Proteins and PL, by contrast, are preserved as structurally indispensable components (nerve and muscle tissues, cell membranes). The abbreviated and non-feeding mode of larval development of P. zariquieyi may have an adaptive value in land-locked freshwater habitats, where planktonic food limitation is likely to occur. The patterns of reserve utilization are similar to those previously observed in other palaemonid shrimps and various other groups of decapod crustaceans with lecithotrophic larvae. This suggests a multiple convergent evolution of bioenergetic traits allowing for reproduction in food-limited aquatic environments. © 2013 Taylor & Francis AU was financially 366 supported by the Deutscher Akademischer Austauschdienst (DAAD, Bonn, Germany) and the 367 Comisión Nacional de Ciencia y Tecnología, CONICYT (Santiago de Chile), funding this 368 study as a part of his doctoral dissertation. This work was partially supported by the Ministry 369 of Science and Research to GG (post-doctoral fellowship; INIA). Peer Reviewed 2014-01-29T12:11:23Z 2014-01-29T12:11:23Z 2013-11 2014-01-29T12:11:23Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.1080/10236244.2013.857067 issn: 1023-6244 e-issn: 1029-0362 Marine and Freshwater Behaviour and Physiology 46(6): 381-397 (2013) http://hdl.handle.net/10261/90096 10.1080/10236244.2013.857067 http://dx.doi.org/10.13039/501100001655 http://dx.doi.org/10.13039/501100002848 http://dx.doi.org/10.13039/100007652 en Postprint https://doi.org/10.1080/10236244.2013.857067 Sí open Taylor & Francis |
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Ontogeny Lecithotrophy Freshwater Caridea Shrimp Chemical compositions Lipid Palaemonetes zariquieyi Ontogeny Lecithotrophy Freshwater Caridea Shrimp Chemical compositions Lipid Palaemonetes zariquieyi |
| spellingShingle |
Ontogeny Lecithotrophy Freshwater Caridea Shrimp Chemical compositions Lipid Palaemonetes zariquieyi Ontogeny Lecithotrophy Freshwater Caridea Shrimp Chemical compositions Lipid Palaemonetes zariquieyi Urzúa, Ángel Guerao, Guillermo Cuesta, José A. Rotllant, Guiomar Estévez, Alicia Anger, Klaus The bioenergetic fuel for non-feeding larval development in an endemic palaemonid shrimp from the Iberian Peninsula, Palaemonetes zariquieyi |
| description |
17 pages, 4 figures, 3 tables |
| author2 |
German Academic Exchange Service |
| author_facet |
German Academic Exchange Service Urzúa, Ángel Guerao, Guillermo Cuesta, José A. Rotllant, Guiomar Estévez, Alicia Anger, Klaus |
| format |
artículo |
| topic_facet |
Ontogeny Lecithotrophy Freshwater Caridea Shrimp Chemical compositions Lipid Palaemonetes zariquieyi |
| author |
Urzúa, Ángel Guerao, Guillermo Cuesta, José A. Rotllant, Guiomar Estévez, Alicia Anger, Klaus |
| author_sort |
Urzúa, Ángel |
| title |
The bioenergetic fuel for non-feeding larval development in an endemic palaemonid shrimp from the Iberian Peninsula, Palaemonetes zariquieyi |
| title_short |
The bioenergetic fuel for non-feeding larval development in an endemic palaemonid shrimp from the Iberian Peninsula, Palaemonetes zariquieyi |
| title_full |
The bioenergetic fuel for non-feeding larval development in an endemic palaemonid shrimp from the Iberian Peninsula, Palaemonetes zariquieyi |
| title_fullStr |
The bioenergetic fuel for non-feeding larval development in an endemic palaemonid shrimp from the Iberian Peninsula, Palaemonetes zariquieyi |
| title_full_unstemmed |
The bioenergetic fuel for non-feeding larval development in an endemic palaemonid shrimp from the Iberian Peninsula, Palaemonetes zariquieyi |
| title_sort |
bioenergetic fuel for non-feeding larval development in an endemic palaemonid shrimp from the iberian peninsula, palaemonetes zariquieyi |
| publisher |
Taylor & Francis |
| publishDate |
2013-11 |
| url |
http://hdl.handle.net/10261/90096 http://dx.doi.org/10.13039/501100001655 http://dx.doi.org/10.13039/501100002848 http://dx.doi.org/10.13039/100007652 |
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