Space-time variations in macrobenthic fauna of a sandy beach, related to changes in the beach profile and sediment grain size, at El Pelicano Beach, Baja California
Time-space variations in macrobenthonic biocenosis are described in relation to the morphology of the beach profile and textural characteristics of the sediment at El Pelícano Beach, South of San Felipe, Baja California, Mexico. Sampling was carried out in March, May, September and November 1993 alo...
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Iniversidad Autónoma de Baja California
1997
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oai:cienciasmarinas.com.mx:article-8282019-05-22T17:10:19Z Space-time variations in macrobenthic fauna of a sandy beach, related to changes in the beach profile and sediment grain size, at El Pelicano Beach, Baja California Variaciones espaciotemporales de la fauna macrobentónica de una playa arenosa y su relación con los cambios del perfil de playa y el tamaño de grano de los sedimentos, en playa El Pelicano, Baja California Cupul-Magaña, LA Téllez-Duarte, MA beach profile sediment ecology paleoecology Gulf of California perfil de playa sedimento ecologia paleoecologia Golfo de California Time-space variations in macrobenthonic biocenosis are described in relation to the morphology of the beach profile and textural characteristics of the sediment at El Pelícano Beach, South of San Felipe, Baja California, Mexico. Sampling was carried out in March, May, September and November 1993 along a beach profile, at fixed stations from the higher high tide to the lower low tide. Abundance data matrices were analyzed by applying a Q-mode cluster analysis, in order to establish community structural changes and compare them with changes in the beach profíle and sediment grain size. In general, the number of species was consistently low and varied with the textural characteristics of the sediment and the morphology of the beach profile. Only the gastropod Nassarius iodes was dominant in all the samplings and beach protile levels, because of its tendency to follow the tide in order to remain in the swash zone where feeding conditions are optimum. Community structural changes at El Pelícano Beach indicate that the ecological and paleoecological interpretation of comparable coastal environments is complex, because of the biotic and biotic time-space variability. Se describen las variaciones espaciotemporales de la biocenosis macrobentónica en relación con los cambios en la morfología del perfil de playa y las características texturales del sedimento de Playa El Pelicano, al sur de San Felipe, Baja California, México. Los muestreos se llevaron a cabo en los meses de marzo, mayo, septiembre y noviembre de 1993. Se estableció un perfil de playa donde se ubicaron las estaciones fijas de muestreo desde el límite superior de pleamar hasta el límite inferior de bajamar. Las matrices con datos de abundancia obtenidas fueron analizadas mediante un análisis aglomerativo de modo Q, para establecer los cambios estructurales de la comunidad y compararlos con los cambios en el perfil de playa y con el tamaño de grano del sedimento. En general, se obtuvo que el número de especies fue consistentemente bajo y que éstas variaron en función del cambio en las características texturales del sedimento y de la morfología del perfil de playa. La única especie dominante en todos los muestreos y niveles del perfil de playa fue el gasterópodo Nassarius iodes, ya que tiende a seguir la marea para permanecer en el vaivén del oleaje, donde las condiciones de alimentación son óptimas. Estos cambios en la estructura de la comunidad en esta playa arenosa hacen ver que la interpretación ecológica y paleoecológica de estos ambientes costeros comparables es muy compleja, debido a la variabilidad espaciotemporal de las condiciones ambientales, tanto en el aspecto biótico como abiótico. Iniversidad Autónoma de Baja California 1997-03-06 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado application/pdf https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/828 10.7773/cm.v23i4.828 Ciencias Marinas; Vol. 23 No. 4 (1997); 419-434 Ciencias Marinas; Vol. 23 Núm. 4 (1997); 419-434 2395-9053 0185-3880 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/828/752 |
| institution |
Ciencias Marinas |
| collection |
OJS |
| language |
eng |
| format |
Online |
| author |
Cupul-Magaña, LA Téllez-Duarte, MA |
| spellingShingle |
Cupul-Magaña, LA Téllez-Duarte, MA Space-time variations in macrobenthic fauna of a sandy beach, related to changes in the beach profile and sediment grain size, at El Pelicano Beach, Baja California |
| author_facet |
Cupul-Magaña, LA Téllez-Duarte, MA |
| author_sort |
Cupul-Magaña, LA |
| title |
Space-time variations in macrobenthic fauna of a sandy beach, related to changes in the beach profile and sediment grain size, at El Pelicano Beach, Baja California |
| title_short |
Space-time variations in macrobenthic fauna of a sandy beach, related to changes in the beach profile and sediment grain size, at El Pelicano Beach, Baja California |
| title_full |
Space-time variations in macrobenthic fauna of a sandy beach, related to changes in the beach profile and sediment grain size, at El Pelicano Beach, Baja California |
| title_fullStr |
Space-time variations in macrobenthic fauna of a sandy beach, related to changes in the beach profile and sediment grain size, at El Pelicano Beach, Baja California |
| title_full_unstemmed |
Space-time variations in macrobenthic fauna of a sandy beach, related to changes in the beach profile and sediment grain size, at El Pelicano Beach, Baja California |
| title_sort |
space-time variations in macrobenthic fauna of a sandy beach, related to changes in the beach profile and sediment grain size, at el pelicano beach, baja california |
| description |
Time-space variations in macrobenthonic biocenosis are described in relation to the morphology of the beach profile and textural characteristics of the sediment at El Pelícano Beach, South of San Felipe, Baja California, Mexico. Sampling was carried out in March, May, September and November 1993 along a beach profile, at fixed stations from the higher high tide to the lower low tide. Abundance data matrices were analyzed by applying a Q-mode cluster analysis, in order to establish community structural changes and compare them with changes in the beach profíle and sediment grain size. In general, the number of species was consistently low and varied with the textural characteristics of the sediment and the morphology of the beach profile. Only the gastropod Nassarius iodes was dominant in all the samplings and beach protile levels, because of its tendency to follow the tide in order to remain in the swash zone where feeding conditions are optimum. Community structural changes at El Pelícano Beach indicate that the ecological and paleoecological interpretation of comparable coastal environments is complex, because of the biotic and biotic time-space variability. |
| publisher |
Iniversidad Autónoma de Baja California |
| publishDate |
1997 |
| url |
https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/828 |
| _version_ |
1715724016585539584 |
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