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Chemical composition of the freshwater prawn Cryphiops caementarius (Molina, 1782) (Decapoda: Palaemonidae) in two populations in northern Chile: reproductive and environmental considerations

Chemical Composition of the Freshwater Prawn Cryphiops caementarius (Molina, 1782) (Decapoda: Palaemonidae) in Two Populations in Northern Chile: Reproductive and Environmental Considerations

dc.contributorUNIVERSIDAD CATOLICA DEL NORTEen-US
dc.contributoruniversidad catolica del nortees-ES
dc.creatorMoreno-Reyes, Jorge E.
dc.creatorMéndez-Ruiz, Carlos A.
dc.creatorX. Díaz, Gina
dc.creatorMeruane, Jaime A.
dc.creatorToledo, Pedro H.
dc.date2017-02-28
dc.date.accessioned2020-11-05T13:35:09Z
dc.date.available2020-11-05T13:35:09Z
dc.identifierhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol43-issue4-fulltext-13
dc.identifier10.3856/vol43-issue4-fulltext-13
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/158455
dc.descriptionReductions of its natural populations have led to recent efforts in small-scale aquaculture of the freshwater prawn Cryphiops caementarius, either for conservation or commercial purposes. However, the lack of knowledge about its nutritional requirements has been one of the major obstacles for its successful culture. Given its importance, this study determines and compares the chemical composition (moisture, ash, crude protein, total lipids and nitrogen free extract) of whole animals and main storage tissues (gonad, hepatopancreas and muscle), of C. caementarius adult prawns from two natural populations. Moreover, the relation of this composition with reproductive and environmental parameters (sex, maturation and habitat) is discussed. The specimens were collected in Limarí and Choapa rivers (Coquimbo, Chile) during reproductive season, and divided into six categories according to capture location, gonad maturation stage, and gender. The chemical composition of whole animals and storage tissues was compared among categories. Significant differences were observed between tissues, sexes, maturity stages and locations. Regarding tissues, the muscle and the gonads were rich in protein, whereas the hepatopancreas had high lipid content. According to results, factors such as sex, habitat and stage of gonad maturation can modify the biochemistry of C. caementarius. Nonetheless, the main chemical variations were observed in tissues involved in regulatory processes (hepatopancreas and gonads), and to a lesser extent in structural tissues (muscle). This is the first study known that reports information about the biochemistry of C. caementarius and its findings may be useful to improve feeding practices in aquaculture.en-US
dc.descriptionReductions of its natural populations has led to recent efforts in small-scale aquaculture of the freshwater prawn Cryphiops caementarius, either for conservation or commercial purposes However, the lack of knowledge about its nutritional requirements has been one of the major obstacles for its successful culture. Given its importance this study determines and compares the chemical composition (moisture, ash, crude protein, total lipids and nitrogen free extract) of whole animals and main storage tissues (gonad, hepatopancreas and muscle), of C. caementarius adult shrimps (male and female) from two natural populations. Moreover, the relation of this composition with reproductive and environmental parameters (sex, maturation and habitat) is discussed. The specimens were collected in Limarí and Choapa rivers (Region of Coquimbo, Chile) during reproductive season, and divided into six categories according to capture location, gonad maturation stage, and gender. The chemical composition of whole animals and storage tissues was compared among categories. Significant differences were observed between tissues, sexes, maturity stages and locations. Regarding tissues, the muscle and the gonads were rich in protein, whereas the hepatopancreas had high lipid content. According to results, factors such as sex, habitat and stage of gonad maturation can modify the biochemistry of C. caementarius. Nonetheless, the main chemical variations were observed in tissues involved in regulatory processes (hepatopancreas and gonads), and to a lesser extent in structural tissues (muscle). This is the first study known that reports information about the biochemistry of C. caementarius and its findings may be useful to improve feeding practices in aquaculture.es-ES
dc.formatapplication/pdf
dc.languageeng
dc.publisherPontificia Universidad Católica de Valparaísoen-US
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol43-issue4-fulltext-13/312
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol43-issue4-fulltext-13/469
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol43-issue4-fulltext-13/470
dc.sourceLatin American Journal of Aquatic Research; Vol 43, No 4 (2015); 745-754en-US
dc.sourcePlataforma para envío de artículos - Latin American Journal of Aquatic Research; Vol 43, No 4 (2015); 745-754es-ES
dc.source0718-560X
dc.source0718-560X
dc.subjectCryphiops caementarius; chemical composition; nutritional requirements; protein; lipids; storage tissuesen-US
dc.subjectChemical composition; Cryphiops caementarius; Nutritional requirements; Protein; Lipids; Storage tissueses-ES
dc.titleChemical composition of the freshwater prawn Cryphiops caementarius (Molina, 1782) (Decapoda: Palaemonidae) in two populations in northern Chile: reproductive and environmental considerationsen-US
dc.titleChemical Composition of the Freshwater Prawn Cryphiops caementarius (Molina, 1782) (Decapoda: Palaemonidae) in Two Populations in Northern Chile: Reproductive and Environmental Considerationses-ES
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeen-US
dc.typees-ES


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