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- W1972049524 abstract "MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 199:205-216 (2000) - doi:10.3354/meps199205 Utilization of estuarine organic matter during growth and migration by juvenile brown shrimp Penaeus aztecus in a South Texas estuary P. Riera1,*, P. A. Montagna2, R. D. Kalke2, P. Richard1 1Centre de Recherche en Ecologie Marine et Aquaculture de L¹Houmeau, UMR 10, CNRS-IFREMER, BP5, Place du Séminaire, 17137 L¹Houmeau, France 2University of Texas at Austin, Marine Science Institute, 750 Channel View Drive, Port Aransas, Texas 78373-5015, USA *Present address: Station Biologique de Roscoff, Université Pierre & Marie Curie Paris VI, UPR 9042, Place Georges-Teissier, BP 74, 29682 Roscoff cedex, France. E-mail: riera@sb-roscoff.fr ABSTRACT: The trophic dynamic links of migratory juvenile brown shrimp Penaeus aztecus were investigated along the South Texas coast from the Aransas Pass to Corpus Christi and Nueces Bay and to the nursery ground in the Nueces Delta. Shrimps and their potential food sources were measured for δ13C and δ15N ratios between December 1995 and July 1996. During this period, shrimp length increased from 10 to 11 mm, when the animals entered Corpus Christi Bay as larvae, to 80-90 mm, when they returned to Mexico Gulf as sub-adults. Brown shrimp exhibited spatial and temporal δ13C variation (from -25.2 to 12.5”), indicating a high diversity of food sources throughout their migration. From δ13C values, the main sources used as food sources by juvenile brown shrimp in the Rincon Bayou marsh were Spartina alterniflora and S. spartinae detritus and benthic diatoms. δ13C and δ15N values showed that organic matter inputs carried by the river inflow can also contribute significantly to the feeding of migratory brown shrimp. In these marsh habitats, shrimp isotopic ratios changed rapidly, suggesting high tissue turnover rates. The study showed that coastal marshes after restoration through the introduction of freshwater inflow may provide feeding habitats favorable for growth and development of juvenile brown shrimp. KEY WORDS: Penaeus aztecus · Food sources · Migration · Nursery area · δ13C and δ15N Full text in pdf format PreviousNextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 199. Publication date: June 26, 2000 Print ISSN:0171-8630; Online ISSN:1616-1599 Copyright © 2000 Inter-Research." @default.
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- W1972049524 title "Utilization of estuarine organic matter during growth and migration by juvenile brown shrimp Penaeus aztecus in a South Texas estuary" @default.
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