Bioerosive impact of Diadema mexicanum on southern Mexican Pacific coral reefs
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Redalyc · Ciencias Marinas
Reef ecosystem growth and maintenance is closely related to sea urchin feeding activities. Hence, quantifying the bioerosive capacity of the sea urchin Diadema mexicanum is necessary to evaluate its impact on coral communities and reefs that develop off the Pacific coast of southern Mexico. Sea urch...
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Universidad Autónoma de Baja California
2016
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| _version_ | 1878325300194967552 |
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| author | Andrés López-Pérez |
| author_facet | Andrés López-Pérez |
| collection | Ciencias Marinas |
| container_title | Ciencias Marinas |
| contents | Bioerosive impact of Diadema mexicanum on southern Mexican Pacific coral reefs Andrés López-Pérez Daniel A López-López Ciencias de la Tierra corals Mexico bioerosion sea urchins Carbonate budget Reef ecosystem growth and maintenance is closely related to se a urchin feeding activities. Hen ce, quantifying the bioerosive capacity of the sea urchin Diadema mexicanum is necessary to evaluate its im pact on coral communities and r eefs that develop off the Pacific coast of southern Mexico. Sea urc hin density, size, bioerosion rate, and type of carbonate rem oved were e stimated, and the car bonate budget of 15 coral communities and reefs fo und off Guerrero and Oaxaca wa s calculated. Sea urchin density ( H = 13.4, P = 0.001) and size ( H = 139.5, P = 0.000) varied over space and we re significantly (density, r 2 = 0.79, P = 0.00; size, r 2 = 0.28, P = 0.03) related to substrate characteristics. In general, size (test diameter) a nd density were directly related to rock coverage but inversely re lated to live coral cover. Ca rbonate removal was directly related to sea urchin s ize (<3.4 cm = 0.052 g/ind/d, 3 .4–6.1 cm = 0.202 g/ind/d, >6.1 cm = 0.325 g/ind/d). Of the tot al carbonate removed, 22% corresponded to ar agonite and 78% to magnesium cal cite, indicating that sea urchin impact on coral reef skeletons is small. When reef carbonate budget was cal culated, only 3.1% of the tot al carbonate deposited by reef cor als was removed. The above da ta indicate that sea urchin feeding activit y alone does not compromise reef ecosystem growth and maintenanc e in southwestern Mexico. Nonet heless, in the near future, the current pol icy of use and development in a nd around reef systems may boo st the bioerosive impact of D. mexicanum in the area. 2016 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48044829005 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1 Vol.42 |
| ctrlnum | oai:cienciasmarinas.com.mx:article/2586 10.7773/cm.v42i1.2586 |
| description | Reef ecosystem growth and maintenance is closely related to sea urchin feeding activities. Hence, quantifying the bioerosive capacity of the sea urchin Diadema mexicanum is necessary to evaluate its impact on coral communities and reefs that develop off the Pacific coast of southern Mexico. Sea urchin density, size, bioerosion rate, and type of carbonate removed were estimated, and the carbonate budget of 15 coral communities and reefs found off Guerrero and Oaxaca was calculated. Sea urchin density (H = 13.4, P = 0.001) and size (H = 139.5, P = 0.000) varied over space and were significantly (density, r2 = 0.79, P = 0.00; size, r2 = 0.28, P = 0.03) related to substrate characteristics. In general, size (test diameter) and density were directly related to rock coverage but inversely related to live coral cover. Carbonate removal was directly related to sea urchin size (<3.4 cm = 0.052 g/ind/d, 3.4–6.1 cm = 0.202 g/ind/d, >6.1 cm = 0.325 g/ind/d). Of the total carbonate removed, 22% corresponded to aragonite and 78% to magnesium calcite, indicating that sea urchin impact on coral reef skeletons is small. When reef carbonate budget was calculated, only 3.1% of the total carbonate deposited by reef corals was removed. The above data indicate that sea urchin feeding activity alone does not compromise reef ecosystem growth and maintenance in southwestern Mexico. Nonetheless, in the near future, the current policy of use and development in and around reef systems may boost the bioerosive impact of D. mexicanum in the area.
El crecimiento y mantenimiento de los ecosistemas arrecifales está relacionado con la actividad alimenticia de los erizos de mar. Así, determinar la capacidad bioerosiva del erizo Diadema mexicanum es necesaria para evaluar su impacto en las comunidades y arrecifes de coral que se desarrollan frente a las costas del Pacífico del sur de México. Este estudio evaluó la densidad, la talla y la tasa de bioerosión de D. mexicanum y el tipo de carbonato removido, a partir de lo cual se estimó el balance de carbonatos en 15 comunidades y arrecifes coralinos ubicados frente a Guerrero y Oaxaca. La densidad (H = 13.4, P = 0.001) y la talla (H = 139.5, P = 0.000) de los erizos varió espacialmente y ambos parámetros estuvieron relacionados significativamente (densidad, r2 = 0.79, P = 0.00; talla, r2 = 0.28, P = 0.03) con las características del sustrato. En general, los organismos alcanzaron mayor talla y densidad en sitios con mayor cobertura de roca y baja cobertura de coral vivo. La remoción de carbonatos estuvo directamente relacionada con la talla de los erizos (<3.4 cm = 0.052 g/ind/d, 3.4–6.1 cm = 0.202 g/ind/d, >6.1 cm = 0.325 g/ind/d). Del total de carbonatos removidos, el 22% correspondió a aragonita coralina y el 78% a calcita de magnesio, lo que sugiere que el impacto de los erizos sobre el esqueleto de los corales en la región es mínimo. El balance entre acumulación y remoción de aragonita coralina indicó que esta última fue sólo el 3.1% del total de carbonatos depositado por los corales, indicando que la actividad alimenticia del erizo, por si misma, no compromete el crecimiento y permanencia de las comunidades y arrecifes coralinos en las costas sudoccidentales de México. No obstante, la actual política de uso y de desarrollo en, y alrededor de, los sistemas arrecifales en la región podría exacerbar el efecto bioerosivo de D. mexicanum en un futuro próximo. |
| format | Artículo científico |
| id | redalyc_48044829005 |
| institution | Redalyc Ciencias Marinas |
| language | en |
| publishDate | 2016 |
| publisher | Universidad Autónoma de Baja California |
| spelling | Bioerosive impact of Diadema mexicanum on southern Mexican Pacific coral reefs Impacto bioerosivo de Diadema mexicanum en arrecifes de coral del Pacífico sur mexicano López-Pérez, Andrés López-López, Daniel A Reef ecosystem growth and maintenance is closely related to sea urchin feeding activities. Hence, quantifying the bioerosive capacity of the sea urchin Diadema mexicanum is necessary to evaluate its impact on coral communities and reefs that develop off the Pacific coast of southern Mexico. Sea urchin density, size, bioerosion rate, and type of carbonate removed were estimated, and the carbonate budget of 15 coral communities and reefs found off Guerrero and Oaxaca was calculated. Sea urchin density (H = 13.4, P = 0.001) and size (H = 139.5, P = 0.000) varied over space and were significantly (density, r2 = 0.79, P = 0.00; size, r2 = 0.28, P = 0.03) related to substrate characteristics. In general, size (test diameter) and density were directly related to rock coverage but inversely related to live coral cover. Carbonate removal was directly related to sea urchin size (<3.4 cm = 0.052 g/ind/d, 3.4–6.1 cm = 0.202 g/ind/d, >6.1 cm = 0.325 g/ind/d). Of the total carbonate removed, 22% corresponded to aragonite and 78% to magnesium calcite, indicating that sea urchin impact on coral reef skeletons is small. When reef carbonate budget was calculated, only 3.1% of the total carbonate deposited by reef corals was removed. The above data indicate that sea urchin feeding activity alone does not compromise reef ecosystem growth and maintenance in southwestern Mexico. Nonetheless, in the near future, the current policy of use and development in and around reef systems may boost the bioerosive impact of D. mexicanum in the area. El crecimiento y mantenimiento de los ecosistemas arrecifales está relacionado con la actividad alimenticia de los erizos de mar. Así, determinar la capacidad bioerosiva del erizo Diadema mexicanum es necesaria para evaluar su impacto en las comunidades y arrecifes de coral que se desarrollan frente a las costas del Pacífico del sur de México. Este estudio evaluó la densidad, la talla y la tasa de bioerosión de D. mexicanum y el tipo de carbonato removido, a partir de lo cual se estimó el balance de carbonatos en 15 comunidades y arrecifes coralinos ubicados frente a Guerrero y Oaxaca. La densidad (H = 13.4, P = 0.001) y la talla (H = 139.5, P = 0.000) de los erizos varió espacialmente y ambos parámetros estuvieron relacionados significativamente (densidad, r2 = 0.79, P = 0.00; talla, r2 = 0.28, P = 0.03) con las características del sustrato. En general, los organismos alcanzaron mayor talla y densidad en sitios con mayor cobertura de roca y baja cobertura de coral vivo. La remoción de carbonatos estuvo directamente relacionada con la talla de los erizos (<3.4 cm = 0.052 g/ind/d, 3.4–6.1 cm = 0.202 g/ind/d, >6.1 cm = 0.325 g/ind/d). Del total de carbonatos removidos, el 22% correspondió a aragonita coralina y el 78% a calcita de magnesio, lo que sugiere que el impacto de los erizos sobre el esqueleto de los corales en la región es mínimo. El balance entre acumulación y remoción de aragonita coralina indicó que esta última fue sólo el 3.1% del total de carbonatos depositado por los corales, indicando que la actividad alimenticia del erizo, por si misma, no compromete el crecimiento y permanencia de las comunidades y arrecifes coralinos en las costas sudoccidentales de México. No obstante, la actual política de uso y de desarrollo en, y alrededor de, los sistemas arrecifales en la región podría exacerbar el efecto bioerosivo de D. mexicanum en un futuro próximo. Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas 2016-03-18 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2586 10.7773/cm.v42i1.2586 Ciencias Marinas; Vol. 42 No. 1 (2016); 67-79 Ciencias Marinas; Vol. 42 Núm. 1 (2016); 67-79 2395-9053 0185-3880 eng https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2586/1585 Copyright (c) 2016 Ciencias Marinas ['Redalyc'] redalyc_48044829005 Bioerosive impact of Diadema mexicanum on southern Mexican Pacific coral reefs ['Bioerosive impact of Diadema mexicanum on southern Mexican Pacific coral reefs', 'Andrés López-Pérez', 'Ciencias de la Tierra', 'corals', 'Mexico', 'bioerosion', 'sea urchins', 'Carbonate budget', 'Bioerosive impact of Diadema mexicanum on southern Mexican Pacific coral reefs Andrés López-Pérez Daniel A López-López Ciencias de la Tierra corals Mexico bioerosion sea urchins Carbonate budget Reef ecosystem growth and maintenance is closely related to se a urchin feeding activities. Hen ce, quantifying the bioerosive capacity of the sea urchin Diadema mexicanum is necessary to evaluate its im pact on coral communities and r eefs that develop off the Pacific coast of southern Mexico. Sea urc hin density, size, bioerosion rate, and type of carbonate rem oved were e stimated, and the car bonate budget of 15 coral communities and reefs fo und off Guerrero and Oaxaca wa s calculated. Sea urchin density ( H = 13.4, P = 0.001) and size ( H = 139.5, P = 0.000) varied over space and we re significantly (density, r 2 = 0.79, P = 0.00; size, r 2 = 0.28, P = 0.03) related to substrate characteristics. In general, size (test diameter) a nd density were directly related to rock coverage but inversely re lated to live coral cover. Ca rbonate removal was directly related to sea urchin s ize (<3.4 cm = 0.052 g/ind/d, 3 .4–6.1 cm = 0.202 g/ind/d, >6.1 cm = 0.325 g/ind/d). Of the tot al carbonate removed, 22% corresponded to ar agonite and 78% to magnesium cal cite, indicating that sea urchin impact on coral reef skeletons is small. When reef carbonate budget was cal culated, only 3.1% of the tot al carbonate deposited by reef cor als was removed. The above da ta indicate that sea urchin feeding activit y alone does not compromise reef ecosystem growth and maintenanc e in southwestern Mexico. Nonet heless, in the near future, the current pol icy of use and development in a nd around reef systems may boo st the bioerosive impact of D. mexicanum in the area. 2016 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48044829005 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1 Vol.42'] ['Andrés López-Pérez'] ['Andrés López-Pérez'] ['Artículo científico'] ['2016'] ['Universidad Autónoma de Baja California'] ['en'] ['Ciencias de la Tierra', 'corals', 'Mexico', 'bioerosion', 'sea urchins', 'Carbonate budget'] ['https://www.redalyc.org/articulo.oa?id=48044829005'] ['Bioerosive impact of Diadema mexicanum on southern Mexican Pacific coral reefs Andrés López-Pérez Daniel A López-López Ciencias de la Tierra corals Mexico bioerosion sea urchins Carbonate budget Reef ecosystem growth and maintenance is closely related to se a urchin feeding activities. Hen ce, quantifying the bioerosive capacity of the sea urchin Diadema mexicanum is necessary to evaluate its im pact on coral communities and r eefs that develop off the Pacific coast of southern Mexico. Sea urc hin density, size, bioerosion rate, and type of carbonate rem oved were e stimated, and the car bonate budget of 15 coral communities and reefs fo und off Guerrero and Oaxaca wa s calculated. Sea urchin density ( H = 13.4, P = 0.001) and size ( H = 139.5, P = 0.000) varied over space and we re significantly (density, r 2 = 0.79, P = 0.00; size, r 2 = 0.28, P = 0.03) related to substrate characteristics. In general, size (test diameter) a nd density were directly related to rock coverage but inversely re lated to live coral cover. Ca rbonate removal was directly related to sea urchin s ize (<3.4 cm = 0.052 g/ind/d, 3 .4–6.1 cm = 0.202 g/ind/d, >6.1 cm = 0.325 g/ind/d). Of the tot al carbonate removed, 22% corresponded to ar agonite and 78% to magnesium cal cite, indicating that sea urchin impact on coral reef skeletons is small. When reef carbonate budget was cal culated, only 3.1% of the tot al carbonate deposited by reef cor als was removed. The above da ta indicate that sea urchin feeding activit y alone does not compromise reef ecosystem growth and maintenanc e in southwestern Mexico. Nonet heless, in the near future, the current pol icy of use and development in a nd around reef systems may boo st the bioerosive impact of D. mexicanum in the area. 2016 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48044829005 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1 Vol.42'] |
| spellingShingle | Bioerosive impact of Diadema mexicanum on southern Mexican Pacific coral reefs Andrés López-Pérez Ciencias de la Tierra corals Mexico bioerosion sea urchins Carbonate budget Bioerosive impact of Diadema mexicanum on southern Mexican Pacific coral reefs Andrés López-Pérez Daniel A López-López Ciencias de la Tierra corals Mexico bioerosion sea urchins Carbonate budget Reef ecosystem growth and maintenance is closely related to se a urchin feeding activities. Hen ce, quantifying the bioerosive capacity of the sea urchin Diadema mexicanum is necessary to evaluate its im pact on coral communities and r eefs that develop off the Pacific coast of southern Mexico. Sea urc hin density, size, bioerosion rate, and type of carbonate rem oved were e stimated, and the car bonate budget of 15 coral communities and reefs fo und off Guerrero and Oaxaca wa s calculated. Sea urchin density ( H = 13.4, P = 0.001) and size ( H = 139.5, P = 0.000) varied over space and we re significantly (density, r 2 = 0.79, P = 0.00; size, r 2 = 0.28, P = 0.03) related to substrate characteristics. In general, size (test diameter) a nd density were directly related to rock coverage but inversely re lated to live coral cover. Ca rbonate removal was directly related to sea urchin s ize (<3.4 cm = 0.052 g/ind/d, 3 .4–6.1 cm = 0.202 g/ind/d, >6.1 cm = 0.325 g/ind/d). Of the tot al carbonate removed, 22% corresponded to ar agonite and 78% to magnesium cal cite, indicating that sea urchin impact on coral reef skeletons is small. When reef carbonate budget was cal culated, only 3.1% of the tot al carbonate deposited by reef cor als was removed. The above da ta indicate that sea urchin feeding activit y alone does not compromise reef ecosystem growth and maintenanc e in southwestern Mexico. Nonet heless, in the near future, the current pol icy of use and development in a nd around reef systems may boo st the bioerosive impact of D. mexicanum in the area. 2016 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48044829005 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.1 Vol.42 |
| title | Bioerosive impact of Diadema mexicanum on southern Mexican Pacific coral reefs |
| title_alt | Impacto bioerosivo de Diadema mexicanum en arrecifes de coral del Pacífico sur mexicano |
| topic | Ciencias de la Tierra corals Mexico bioerosion sea urchins Carbonate budget |
| url | https://www.redalyc.org/articulo.oa?id=48044829005 https://cienciasmarinas.com.mx/index.php/cmarinas/article/view/2586 |