Species richness and composition of macroalgal assemblages of a disturbed coral reef in the Gulf of California, Mexico
Background and Aims: In September 2001, the coral reef of the San Lorenzo Channel, La Paz Bay, Gulf of California, Mexico, was affected by the stranding of the oil tank vessel “Lázaro Cárdenas II”. Soon afterwards, hurricane “Juliette” hit the area with strong winds and water movement, disturbing th...
| Egile Nagusiak: | , , , , |
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| Formatua: | Online |
| Hizkuntza: | spa eng |
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Instituto de Ecología, A.C.
2020
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| Sarrera elektronikoa: | https://abm.ojs.inecol.mx/index.php/abm/article/view/1653 |
| _version_ | 1799771373406519296 |
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| author | Piñon-Gimate, Alejandra Chávez-Sánchez, Tonatiuh Mazariegos Villarreal, Alejandra Balart, Eduardo F. Serviere-Zaragoza, Elisa |
| author_facet | Piñon-Gimate, Alejandra Chávez-Sánchez, Tonatiuh Mazariegos Villarreal, Alejandra Balart, Eduardo F. Serviere-Zaragoza, Elisa |
| author_sort | Piñon-Gimate, Alejandra |
| collection | ABM |
| description | Background and Aims: In September 2001, the coral reef of the San Lorenzo Channel, La Paz Bay, Gulf of California, Mexico, was affected by the stranding of the oil tank vessel “Lázaro Cárdenas II”. Soon afterwards, hurricane “Juliette” hit the area with strong winds and water movement, disturbing the reef again. After that, three zones could be observed in the reef: one directly impacted by the shipwreck, one indirectly impacted by the hurricane, which moved and accumulated the coral debris left by the shipwreck, and the third one, which was not impacted. Later, a monitoring program was established to determine the degree of recovery of macroalgal assemblages in both impacted zones compared with the non-impacted one.
Methods: From February 2005 to December 2007, macroalgae were collected seasonally by scuba divers in the three zones. In each zone, three to five thalli of all conspicuous algae, five rocks and five fragments of dead coral covered with macroalgal turfs were collected. Species number and composition of macroalgae assemblages were compared between zones and between years.
Key results: A total of 117 species were found, 70 belonged to the phylum Rhodophyta, 25 to Ochrophyta-Phaeophyceae, and 22 to Chlorophyta. Macroalgal species richness and composition of the impacted zones were not different from the control zone, even between years.
Conclusions: Macroalgal assemblages in the San Lorenzo Channel coral reef were able to recover, regardless of the modification of the substrate caused by the stranding and the hurricane “Juliette” in 2001. Therefore, it is important to implement monitoring efforts in case of anthropogenic or natural disturbance to document the extension of damage, recovery of the communities, and propose mitigation strategies if necessary.
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| format | Online |
| id | oai:oai.abm.ojs.inecol.mx:article-1653 |
| institution | Acta Botanica Mexicana |
| language | spa eng |
| publishDate | 2020 |
| publisher | Instituto de Ecología, A.C. |
| record_format | ojs |
| spelling | oai:oai.abm.ojs.inecol.mx:article-16532022-11-25T20:09:23Z Species richness and composition of macroalgal assemblages of a disturbed coral reef in the Gulf of California, Mexico Riqueza de especies y composición de los ensambles de macroalgas de un arrecife de coral impactado en el Golfo de California, México Piñon-Gimate, Alejandra Chávez-Sánchez, Tonatiuh Mazariegos Villarreal, Alejandra Balart, Eduardo F. Serviere-Zaragoza, Elisa hurricane recovery shipwreck species richness turf algae. céspedes algales encallamiento huracán recuperación riqueza de especies Background and Aims: In September 2001, the coral reef of the San Lorenzo Channel, La Paz Bay, Gulf of California, Mexico, was affected by the stranding of the oil tank vessel “Lázaro Cárdenas II”. Soon afterwards, hurricane “Juliette” hit the area with strong winds and water movement, disturbing the reef again. After that, three zones could be observed in the reef: one directly impacted by the shipwreck, one indirectly impacted by the hurricane, which moved and accumulated the coral debris left by the shipwreck, and the third one, which was not impacted. Later, a monitoring program was established to determine the degree of recovery of macroalgal assemblages in both impacted zones compared with the non-impacted one. Methods: From February 2005 to December 2007, macroalgae were collected seasonally by scuba divers in the three zones. In each zone, three to five thalli of all conspicuous algae, five rocks and five fragments of dead coral covered with macroalgal turfs were collected. Species number and composition of macroalgae assemblages were compared between zones and between years. Key results: A total of 117 species were found, 70 belonged to the phylum Rhodophyta, 25 to Ochrophyta-Phaeophyceae, and 22 to Chlorophyta. Macroalgal species richness and composition of the impacted zones were not different from the control zone, even between years. Conclusions: Macroalgal assemblages in the San Lorenzo Channel coral reef were able to recover, regardless of the modification of the substrate caused by the stranding and the hurricane “Juliette” in 2001. Therefore, it is important to implement monitoring efforts in case of anthropogenic or natural disturbance to document the extension of damage, recovery of the communities, and propose mitigation strategies if necessary. Antecedentes y Objetivos: El arrecife de coral del Canal de San Lorenzo, Bahía de La Paz, Golfo de California, México, se vio afectado por el varamiento del tanque petrolero “Lázaro Cárdenas II” en septiembre de 2001. Poco después, el huracán “Juliette” golpeó el área con fuertes vientos y movimiento de agua que perturbaron nuevamente al arrecife. Después de esto, se pudieron observar tres zonas en el arrecife: una directamente impactada por el encallamiento, otra indirectamente impactada por el huracán, que movió y acumuló los restos de coral que dejó el encallamiento, y la tercera no impactada. Posteriormente, se estableció un programa de monitoreo para determinar el grado de recuperación de los ensambles de macroalgas en ambas zonas impactadas en comparación con la zona no impactada. Métodos: De febrero de 2005 a diciembre de 2007, se recolectaron estacionalmente macroalgas en las tres zonas por medio de buceo. En cada zona, de tres a cinco talos de las especies de macroalgas conspicuas, cinco rocas y cinco fragmentos de coral muerto cubiertos con tapetes macroalgales fueron recolectados. El número de especies y la composición de los ensambles de macroalgas fueron comparados entre zonas y entre años. Resultados clave: Se encontró un total de 117 especies, 70 pertenecientes al filo Rhodophyta, 25 a Ochrophyta-Phaeophyceae y 22 a Chlorophyta. La riqueza de especies y composición de las macroalgas en las zonas impactadas no fueron diferentes de la zona control ni entre años. Conclusiones: Los ensambles de macroalgas en el arrecife de coral del Canal de San Lorenzo pudieron recuperarse independientemente de la modificación del sustrato a causa del varamiento del buque y del huracán “Juliette” en 2001. Por lo anterior, es importante implementar esfuerzos de monitoreo para que, en caso de que ocurra una perturbación antropogénica o natural, se pueda documentar la extensión del daño, la recuperación de la comunidad y proponer estrategias de mitigación si es necesario. Instituto de Ecología, A.C. 2020-05-11 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion artículo evaluado por pares application/pdf application/xml application/epub+zip https://abm.ojs.inecol.mx/index.php/abm/article/view/1653 10.21829/abm127.2020.1653 Acta Botanica Mexicana; No. 127 (2020) Acta Botanica Mexicana; Núm. 127 (2020) 2448-7589 0187-7151 spa eng https://abm.ojs.inecol.mx/index.php/abm/article/view/1653/3629 https://abm.ojs.inecol.mx/index.php/abm/article/view/1653/2128 https://abm.ojs.inecol.mx/index.php/abm/article/view/1653/epub Derechos de autor 2020 Acta Botanica Mexicana https://creativecommons.org/licenses/by-nc/4.0 |
| spellingShingle | Piñon-Gimate, Alejandra Chávez-Sánchez, Tonatiuh Mazariegos Villarreal, Alejandra Balart, Eduardo F. Serviere-Zaragoza, Elisa Species richness and composition of macroalgal assemblages of a disturbed coral reef in the Gulf of California, Mexico |
| title | Species richness and composition of macroalgal assemblages of a disturbed coral reef in the Gulf of California, Mexico |
| title_full | Species richness and composition of macroalgal assemblages of a disturbed coral reef in the Gulf of California, Mexico |
| title_fullStr | Species richness and composition of macroalgal assemblages of a disturbed coral reef in the Gulf of California, Mexico |
| title_full_unstemmed | Species richness and composition of macroalgal assemblages of a disturbed coral reef in the Gulf of California, Mexico |
| title_short | Species richness and composition of macroalgal assemblages of a disturbed coral reef in the Gulf of California, Mexico |
| title_sort | species richness and composition of macroalgal assemblages of a disturbed coral reef in the gulf of california, mexico |
| url | https://abm.ojs.inecol.mx/index.php/abm/article/view/1653 |
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