δ 13C of zooplankton, decapod crustaceans and amphipods from Laguna de Terminos, Campeche (Mexico), with reference to food sources and trophic position
Zooplankton, Penaeus setiferus, P. duorarum, Xiphopenaeus kroyeti, Callinectes sapidus, Dyspanopeus texanus, Palaemonetes spp., Hippolyte spp. and amphipods were isotopically characterized to identify the food sources they use and their relative trophic position, as well as to establish a relations...
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| Format: | Article |
| Language: | English |
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Universidad Autónoma de Baja California
1993-03-01
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| Series: | Ciencias Marinas |
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| Online Access: | http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/925 |
| _version_ | 1797278726052904960 |
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| author | A Raz-Guzmán G De-la-Lanza |
| author_facet | A Raz-Guzmán G De-la-Lanza |
| author_sort | A Raz-Guzmán |
| collection | DOAJ |
| description |
Zooplankton, Penaeus setiferus, P. duorarum, Xiphopenaeus kroyeti, Callinectes sapidus, Dyspanopeus texanus, Palaemonetes spp., Hippolyte spp. and amphipods were isotopically characterized to identify the food sources they use and their relative trophic position, as well as to establish a relationship between the isotopic data and the isotopic “memory”, the isotopic convergence and the complexity of trophic chains. The δ 13C values of the animals were compared to those of the submerged vegetation, detritus and sediment of each locality. The range of δ 13C values of –7.2 to –24‰ indicates that consumers take advantage of sources of organic carbon of a diverse isotopic nature. The isotopic difference between the lager consumers, P. setiferus, P. duorarum, X. kroyeri, C. sapidus and D. texanus, and the primary producers indicates that the first occupy a high trophic level within their communities. There is a relationship between the migration of P. setiferus juveniles from the northeast (CTL = 11.5 mm) to the southwest (CTL = 22.5 mm) of the lagoon, and the variation in isotopic composition from heavier (–8.9‰) to lighter (–24.2‰) δ 13C values. Three cases are presented to explain the variety of δ 13C values of P. setiferus. In general, the isotopic composition of the above-mentioned species characterized two isotopically different areas: one to the northeast of the system with heavier values of –6.4 to –17.2‰ and another to the west, southwest and South with lighter values of –15.3 to –24.2‰.
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| first_indexed | 2024-03-07T16:13:24Z |
| format | Article |
| id | doaj.art-d78705f7cf9e4ad6a09b7f87964c34ae |
| institution | Directory Open Access Journal |
| issn | 0185-3880 2395-9053 |
| language | English |
| last_indexed | 2024-03-07T16:13:24Z |
| publishDate | 1993-03-01 |
| publisher | Universidad Autónoma de Baja California |
| record_format | Article |
| series | Ciencias Marinas |
| spelling | doaj.art-d78705f7cf9e4ad6a09b7f87964c34ae2024-03-04T16:43:49ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90531993-03-0119210.7773/cm.v19i2.925δ 13C of zooplankton, decapod crustaceans and amphipods from Laguna de Terminos, Campeche (Mexico), with reference to food sources and trophic positionA Raz-Guzmán0G De-la-Lanza1Universidad Nacional Autónoma de MéxicoUniversidad Nacional Autónoma de México Zooplankton, Penaeus setiferus, P. duorarum, Xiphopenaeus kroyeti, Callinectes sapidus, Dyspanopeus texanus, Palaemonetes spp., Hippolyte spp. and amphipods were isotopically characterized to identify the food sources they use and their relative trophic position, as well as to establish a relationship between the isotopic data and the isotopic “memory”, the isotopic convergence and the complexity of trophic chains. The δ 13C values of the animals were compared to those of the submerged vegetation, detritus and sediment of each locality. The range of δ 13C values of –7.2 to –24‰ indicates that consumers take advantage of sources of organic carbon of a diverse isotopic nature. The isotopic difference between the lager consumers, P. setiferus, P. duorarum, X. kroyeri, C. sapidus and D. texanus, and the primary producers indicates that the first occupy a high trophic level within their communities. There is a relationship between the migration of P. setiferus juveniles from the northeast (CTL = 11.5 mm) to the southwest (CTL = 22.5 mm) of the lagoon, and the variation in isotopic composition from heavier (–8.9‰) to lighter (–24.2‰) δ 13C values. Three cases are presented to explain the variety of δ 13C values of P. setiferus. In general, the isotopic composition of the above-mentioned species characterized two isotopically different areas: one to the northeast of the system with heavier values of –6.4 to –17.2‰ and another to the west, southwest and South with lighter values of –15.3 to –24.2‰. http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/925n/a |
| spellingShingle | A Raz-Guzmán G De-la-Lanza δ 13C of zooplankton, decapod crustaceans and amphipods from Laguna de Terminos, Campeche (Mexico), with reference to food sources and trophic position Ciencias Marinas n/a |
| title | δ 13C of zooplankton, decapod crustaceans and amphipods from Laguna de Terminos, Campeche (Mexico), with reference to food sources and trophic position |
| title_full | δ 13C of zooplankton, decapod crustaceans and amphipods from Laguna de Terminos, Campeche (Mexico), with reference to food sources and trophic position |
| title_fullStr | δ 13C of zooplankton, decapod crustaceans and amphipods from Laguna de Terminos, Campeche (Mexico), with reference to food sources and trophic position |
| title_full_unstemmed | δ 13C of zooplankton, decapod crustaceans and amphipods from Laguna de Terminos, Campeche (Mexico), with reference to food sources and trophic position |
| title_short | δ 13C of zooplankton, decapod crustaceans and amphipods from Laguna de Terminos, Campeche (Mexico), with reference to food sources and trophic position |
| title_sort | δ 13c of zooplankton decapod crustaceans and amphipods from laguna de terminos campeche mexico with reference to food sources and trophic position |
| topic | n/a |
| url | http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/925 |
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