SciELO - Scientific Electronic Library Online

 
vol.42 número2Efectos de eventos interanuales (1997-2012) sobre la variabilidad hidrográfica y biomasa del fitoplancton en bahía Sebastián VizcaínoEfectos de la triploidía inducida por choque frío sobre la división celular, la tasa de eclosión y la supervivencia larvaria de la cabrilla arenera (Paralabrax maculatofasciatus) índice de autoresíndice de materiabúsqueda de artículos
Home Pagelista alfabética de revistas  

Servicios Personalizados

Revista

Articulo

Indicadores

Links relacionados

  • No hay artículos similaresSimilares en SciELO

Compartir


Ciencias marinas

versión impresa ISSN 0185-3880

Resumen

CASAS-VALDEZ, Margarita; SANCHEZ-RODRIGUEZ, Ignacio; SERVIERE-ZARAGOZA, Elisa  y  AGUILA-RAMIREZ, Ruth N. Temporal changes in the biomass and distribution of Sargassum beds along the southeastern coast of the Baja California Peninsula. Cienc. mar [online]. 2016, vol.42, n.2, pp.99-109. ISSN 0185-3880.  https://doi.org/10.7773/cm.v42i2.2592.

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.

Palabras llave : biomass; Gulf of California; Sargassum; standing crop; seasonal changes.

        · resumen en Español     · texto en Español | Inglés     · Español ( pdf ) | Inglés ( pdf )