Cambio estacional de clorofila a en la Bahía de La Paz, B.C.S., México

Authors

  • Aída Martínez-López Centro Interdisciplinarios de Ciencias Marinas, I.P.N. (CICIMAR-IPN). Av. Instituto Politécnico Nacional s/n. A. P. 592, La Paz, B.C.S., México.
  • Rafael Cervantes-Duarte Centro Interdisciplinarios de Ciencias Marinas, I.P.N. (CICIMAR-IPN). Av. Instituto Politécnico Nacional s/n. A. P. 592, La Paz, B.C.S., México.
  • Amada Reyes-Salinas Centro Interdisciplinarios de Ciencias Marinas, I.P.N. (CICIMAR-IPN). Av. Instituto Politécnico Nacional s/n. A. P. 592, La Paz, B.C.S., México.
  • José Eduardo Valdez-Holguín Centro Interdisciplinarios de Ciencias Marinas, I.P.N. (CICIMAR-IPN). Av. Instituto Politécnico Nacional s/n. A. P. 592, La Paz, B.C.S., México. Depto. de Investigaciones Científicas y Tecnológicas, Universidad de Sonora (DICTUS). Rosales y Niños Héroes s/n, Hermosillo, Sonora, México.

Keywords:

Chlorophyll a, phytoplankton, tranparency, seasonal change, Bahía de La Paz, Mexico

Abstract

From april 1993 to march 1995 hourly wind data, intensity and direction, were analyzed. Monthly sampling of temperature, Secchi disc depth and chlorophyll a were carried out on 5 stations transect across the Bahía de La Paz at surface, 10 and 25 meters depth. Southward winds were dominant during october to march and northward the rest of the year. The highest temperatures were registered from July to October with temperatures between 28 and 32ºC, and the lowest from January to march, with values in the range of 20 and 22ºC. Maximum Secchi depths (14-24 m) was observed during July trough November and minimum during January to June (6-15 m). Chlorophyll a concentration showed a inverse relationship with temperature and water transparency. The lowest integrated chlorophyll a calues (<10 mg m-2 ) were found at warm season as a result probably of a strong water column stratification and slow vertical transport of dissolved and particulate materials from deep layers. Maximum values (142.8 mg m-2 ) during cold season were associated with water column mixing processes and nutrient availability inthe euphotic zone.

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Published

2017-01-15

How to Cite

Martínez-López, A., Cervantes-Duarte, R., Reyes-Salinas, A., & Valdez-Holguín, J. E. (2017). Cambio estacional de clorofila a en la Bahía de La Paz, B.C.S., México. HIDROBIOLÓGICA, 11(1), 45–52. Retrieved from https://hidrobiologica.izt.uam.mx/index.php/revHidro/article/view/952

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