Effect of shrimp farm effluent on water and sediment quality parameters off the coast of Sonora, Mexico
The effect of shrimp aquaculture effluents on some environmental parameters of the receiving coastal waters was assessed. Water and sediment samples were taken at different distances from the discharge point (50, 150, and 300 m) when shrimp farms had ceased operations (survey 1), had initiated oper...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Universidad Autónoma de Baja California
2015-03-01
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| Series: | Ciencias Marinas |
| Online Access: | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2424 |
| _version_ | 1827330988891439104 |
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| author | Ramón Héctor Barraza-Guardado Luis Rafael Martínez-Córdova Luis Fernando Enríquez-Ocaña Marcel Martínez-Porchas Anselmo Miranda-Baeza Marco Antonio Porchas-Cornejo |
| author_facet | Ramón Héctor Barraza-Guardado Luis Rafael Martínez-Córdova Luis Fernando Enríquez-Ocaña Marcel Martínez-Porchas Anselmo Miranda-Baeza Marco Antonio Porchas-Cornejo |
| author_sort | Ramón Héctor Barraza-Guardado |
| collection | DOAJ |
| description |
The effect of shrimp aquaculture effluents on some environmental parameters of the receiving coastal waters was assessed. Water and sediment samples were taken at different distances from the discharge point (50, 150, and 300 m) when shrimp farms had ceased operations (survey 1), had initiated operations (survey 2), and during the early harvest (survey 3). Water and sediment samples were likewise taken at the same distances from the shore in a non-impacted area. During surveys 1 and 2, the effluents had a negative effect at all three distances (50, 150, and 300 m) on the water quality variables (transparency, seston [total suspended solids, total inorganic solids, particulate organic matter], chlorophyll a, N-NO2–, N-NO3–, N-NH4+), on the sediment quality parameters (organic nitrogen), and on the TRIX index. Contrarily, no differences were observed when the impacted and non-impacted areas were compared during survey 3, probably because the effluents had diminished due to the premature harvesting. The results suggest that at the end of the farming period, the nutrient and organic matter load exceeded the assimilation capacity of the ecosystem, whereas during the recess period, the environment was capable of assimilating the excess organic matter accumulated. The levels reached by the monitored parameters did not exceed the limits established and the impact on the ecosystem is not severe, but they could represent a risk factor in the long term. Additionally, there is evidence that the temporary suspension of shrimp farming operations is beneficial for the environment.
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| first_indexed | 2024-03-07T16:26:28Z |
| format | Article |
| id | doaj.art-4840c3126bf146748b58720da0d9b1fa |
| institution | Directory Open Access Journal |
| issn | 0185-3880 2395-9053 |
| language | English |
| last_indexed | 2024-03-07T16:26:28Z |
| publishDate | 2015-03-01 |
| publisher | Universidad Autónoma de Baja California |
| record_format | Article |
| series | Ciencias Marinas |
| spelling | doaj.art-4840c3126bf146748b58720da0d9b1fa2024-03-03T17:50:31ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90532015-03-0140410.7773/cm.v40i4.2424Effect of shrimp farm effluent on water and sediment quality parameters off the coast of Sonora, MexicoRamón Héctor Barraza-Guardado0Luis Rafael Martínez-Córdova1Luis Fernando Enríquez-Ocaña2Marcel Martínez-Porchas3Anselmo Miranda-Baeza4Marco Antonio Porchas-Cornejo5Universidad de SonoraUniversidad de SonoraUniversidad de SonoraCentro de Investigación en Alimentación y DesarrolloUniversidad Estatal de SonoraCentro de Investigaciones Biológicas del Noroeste The effect of shrimp aquaculture effluents on some environmental parameters of the receiving coastal waters was assessed. Water and sediment samples were taken at different distances from the discharge point (50, 150, and 300 m) when shrimp farms had ceased operations (survey 1), had initiated operations (survey 2), and during the early harvest (survey 3). Water and sediment samples were likewise taken at the same distances from the shore in a non-impacted area. During surveys 1 and 2, the effluents had a negative effect at all three distances (50, 150, and 300 m) on the water quality variables (transparency, seston [total suspended solids, total inorganic solids, particulate organic matter], chlorophyll a, N-NO2–, N-NO3–, N-NH4+), on the sediment quality parameters (organic nitrogen), and on the TRIX index. Contrarily, no differences were observed when the impacted and non-impacted areas were compared during survey 3, probably because the effluents had diminished due to the premature harvesting. The results suggest that at the end of the farming period, the nutrient and organic matter load exceeded the assimilation capacity of the ecosystem, whereas during the recess period, the environment was capable of assimilating the excess organic matter accumulated. The levels reached by the monitored parameters did not exceed the limits established and the impact on the ecosystem is not severe, but they could represent a risk factor in the long term. Additionally, there is evidence that the temporary suspension of shrimp farming operations is beneficial for the environment. https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2424 |
| spellingShingle | Ramón Héctor Barraza-Guardado Luis Rafael Martínez-Córdova Luis Fernando Enríquez-Ocaña Marcel Martínez-Porchas Anselmo Miranda-Baeza Marco Antonio Porchas-Cornejo Effect of shrimp farm effluent on water and sediment quality parameters off the coast of Sonora, Mexico Ciencias Marinas |
| title | Effect of shrimp farm effluent on water and sediment quality parameters off the coast of Sonora, Mexico |
| title_full | Effect of shrimp farm effluent on water and sediment quality parameters off the coast of Sonora, Mexico |
| title_fullStr | Effect of shrimp farm effluent on water and sediment quality parameters off the coast of Sonora, Mexico |
| title_full_unstemmed | Effect of shrimp farm effluent on water and sediment quality parameters off the coast of Sonora, Mexico |
| title_short | Effect of shrimp farm effluent on water and sediment quality parameters off the coast of Sonora, Mexico |
| title_sort | effect of shrimp farm effluent on water and sediment quality parameters off the coast of sonora mexico |
| url | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2424 |
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