Co-ocurrence of Chattonella marina and Gymnodinium catenatum inBahía de LaPaz, Gulf of California (Spring2009)

Authors

  • David Javier López-Cortés Centro de Investigaciones Biológicas del Noroeste, A.P. 128, La Paz, B.C.S. CP. 23000, México
  • Christine Johanna Band-Schmidt Departamento de Plancton y Ecología Marina, Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, A.P. 592, La Paz, B.C.S. CP. 23000
  • Ismael Gárate-Lizárraga Departamento de Plancton y Ecología Marina, Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, A.P. 592, La Paz, B.C.S. CP. 23000
  • José Jesús Bustillos-Guzmán Centro de Investigaciones Biológicas del Noroeste, A.P. 128, La Paz, B.C.S. CP. 23000, México
  • Francisco Eduardo Hernández-Sandoval Centro de Investigaciones Biológicas del Noroeste, A.P. 128, La Paz, B.C.S. CP. 23000, México
  • Erick Julian Núñez-Vázquez Centro de Investigaciones Biológicas del Noroeste, A.P. 128, La Paz, B.C.S. CP. 23000, México

Keywords:

Chatonella marina, Gymnodinium catenatum, Bahía of La Paz, Gulf of California, marine phytoplankton.

Abstract

During the period of 24 March to 14 May 2009, water and net samples were obtained for phytoplankton analyses; one aliquot was fixed in Lugol´s solution for species quantification and identification. Net samples were used for the identification of live phytoplankton species. Additionally, temperature in situ, chlorophyll a and inorganic nutrients were measured weekly in three stations. Two species were identified: Chattonella marina (Subrahmanyan) Y. Hara et Chihara and Gymnodinium catenatum Graham. Chattonella marina was the most abundant species with a density at subsurface level of 14 × 103 to 36 × 103 cell L-1 . Gymnodinium catenatum had densities were of 1 × 103 to 19 × 103 cell L-1 . Water column temperature was quasi homogeneous from surface to 20 m in depth, with an interval of 19.5 to 22.0 °C and 20.0 to 21.5 °C from March to April respectively. In the middle of May stratification of the water column initiated with a slight temperature difference of 5.0 °C recorded from surface to 20 m in depth. Nitrates varied from 0.5 to 11.0 µM and orthophosphates from 0.4 to 2.6 µM. Chlorophyll a showed a value at surface level of 7.5 mg m-3 and 3.5 mg m-3 at 20 m in March; in May chlorophyll a values ranged between 2.0 to 7.0 mg m-3 . We conclude that the presence of these two species during this study period was associated to the relaxation of the mixing processes in the zone

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Published

2017-01-09

How to Cite

López-Cortés, D. J., Band-Schmidt, C. J., Gárate-Lizárraga, I., Bustillos-Guzmán, J. J., Hernández-Sandoval, F. E., & Núñez-Vázquez, E. J. (2017). Co-ocurrence of Chattonella marina and Gymnodinium catenatum inBahía de LaPaz, Gulf of California (Spring2009). HIDROBIOLÓGICA, 21(2), 185–196. Retrieved from https://hidrobiologica.izt.uam.mx/index.php/revHidro/article/view/751

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