Temporal changes in the biomass and distribution of Sargassum beds along the southeastern coast of the Baja California Peninsula

Temporal changes in the biomass and distribution of Sargassum beds along the southeastern coast of the Baja California Peninsula

Changes in the distribution, surface canopy, biomass, and standing crop of Sargassum beds (Phaeophyceae) along the southeastern coast of the Baja California Peninsula (Mexico) are described and compared with previous estimates. Also, Sargassum biomass was correlated with latitude. Species were ident...

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Autores principales: Casas-Valdez, Margarita, Sánchez-Rodríguez, Ignacio, Serviere-Zaragoza, Elisa, Aguila-Ramirez, Ruth N
Formato: info:eu-repo/semantics/article
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 2016
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2592
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spelling repositorioinstitucional-20.500.12930-74992023-05-09T14:30:58Z Temporal changes in the biomass and distribution of Sargassum beds along the southeastern coast of the Baja California Peninsula Cambios temporales de la biomasa y distribución de los mantos de Sargassumen la costa sureste de la península de Baja California Casas-Valdez, Margarita Sánchez-Rodríguez, Ignacio Serviere-Zaragoza, Elisa Aguila-Ramirez, Ruth N Changes in the distribution, surface canopy, biomass, and standing crop of Sargassum beds (Phaeophyceae) along the southeastern coast of the Baja California Peninsula (Mexico) are described and compared with previous estimates. Also, Sargassum biomass was correlated with latitude. Species were identified and surface canopy, biomass, standing crop, and length structure were estimated for 72 Sargassum beds in 3 localities in 2006. The extent of each bed was determined using GPS. The perimeter of each bed was drawn and its canopy area was calculated. The average biomass was estimated, using quadrats that were randomly distributed over the beds. The highest average biomass was found at Mulegé, with significant differences in the other 2 study areas (Concepción and La Paz bays). The largest bed, surface canopy area, and standing crop were recorded in Concepción Bay. Coverage area, location, and seasonal changes in surface canopy, standing crop, and biomass of Sargassum beds along the southeastern coast of the Baja California Peninsula were compared with the different phenological stages of Sargassum thalli, variations in the available rocky sea floor, and oceanographic characteristics. These aspects must be considered to maintain sustainable exploitation of this potential resource.  Se describen y comparan con estimaciones previas los cambios en la distribución, superficie, biomasa y cosecha de mantos de Sargassum (Phaeophyceae) a lo largo de la costa sureste de la península de Baja California (México). También, la biomasa de Sargassum se correlacionó con la latitud. Se determinaron las especies y se estimó la superficie, biomasa, cosecha y estructura de tallas de 72 mantos de Sargassum en 3 zonas en 2006. La extensión de cada manto fue determinada usando GPS. El perímetro de cada manto fue dibujado y su superficie fue calculada. La biomasa promedio fue estimada usando cuadrantes que fueron distribuidos al azar sobre los mantos. Se registró la biomasa promedio más alta en Mulegé, encontrándose diferencias significativas con respecto a las otras 2 zonas de estudio (bahías Concepción y La Paz). En bahía Concepción se registró el manto más grande y la mayor superficie y cosecha. Los cambios en la distribución, superficie, biomasa y cosecha de los mantos de Sargassum a lo largo de la costa sureste de la península de Baja California fueron comparados con diferentes estadios fenológicos de Sargassum, variaciones en la disponibilidad de sustrato rocoso y características oceanográficas. Estos aspectos deben ser considerados para mantener una explotación sustentable de este recurso potencial. 2016-06-15 2021-06-03T03:55:28Z 2021-06-03T03:55:28Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2592 10.7773/cm.v42i2.2592 https://hdl.handle.net/20.500.12930/7499 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2592/1586 Copyright (c) 2016 Ciencias Marinas application/pdf Iniversidad Autónoma de Baja California Ciencias Marinas; Vol. 42 No. 2 (2016); 99-109 Ciencias Marinas; Vol. 42 Núm. 2 (2016); 99-109 2395-9053 0185-3880
institution Repositorio Institucional
collection DSpace
language eng
description Changes in the distribution, surface canopy, biomass, and standing crop of Sargassum beds (Phaeophyceae) along the southeastern coast of the Baja California Peninsula (Mexico) are described and compared with previous estimates. Also, Sargassum biomass was correlated with latitude. Species were identified and surface canopy, biomass, standing crop, and length structure were estimated for 72 Sargassum beds in 3 localities in 2006. The extent of each bed was determined using GPS. The perimeter of each bed was drawn and its canopy area was calculated. The average biomass was estimated, using quadrats that were randomly distributed over the beds. The highest average biomass was found at Mulegé, with significant differences in the other 2 study areas (Concepción and La Paz bays). The largest bed, surface canopy area, and standing crop were recorded in Concepción Bay. Coverage area, location, and seasonal changes in surface canopy, standing crop, and biomass of Sargassum beds along the southeastern coast of the Baja California Peninsula were compared with the different phenological stages of Sargassum thalli, variations in the available rocky sea floor, and oceanographic characteristics. These aspects must be considered to maintain sustainable exploitation of this potential resource. 
format info:eu-repo/semantics/article
author Casas-Valdez, Margarita
Sánchez-Rodríguez, Ignacio
Serviere-Zaragoza, Elisa
Aguila-Ramirez, Ruth N
spellingShingle Casas-Valdez, Margarita
Sánchez-Rodríguez, Ignacio
Serviere-Zaragoza, Elisa
Aguila-Ramirez, Ruth N
Temporal changes in the biomass and distribution of Sargassum beds along the southeastern coast of the Baja California Peninsula
author_facet Casas-Valdez, Margarita
Sánchez-Rodríguez, Ignacio
Serviere-Zaragoza, Elisa
Aguila-Ramirez, Ruth N
author_sort Casas-Valdez, Margarita
title Temporal changes in the biomass and distribution of Sargassum beds along the southeastern coast of the Baja California Peninsula
title_short Temporal changes in the biomass and distribution of Sargassum beds along the southeastern coast of the Baja California Peninsula
title_full Temporal changes in the biomass and distribution of Sargassum beds along the southeastern coast of the Baja California Peninsula
title_fullStr Temporal changes in the biomass and distribution of Sargassum beds along the southeastern coast of the Baja California Peninsula
title_full_unstemmed Temporal changes in the biomass and distribution of Sargassum beds along the southeastern coast of the Baja California Peninsula
title_sort temporal changes in the biomass and distribution of sargassum beds along the southeastern coast of the baja california peninsula
publisher Iniversidad Autónoma de Baja California
publishDate 2016
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2592
_version_ 1792610587777171456

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