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Botanica Marina 51 (2008): 112–123 2008 by Walter de Gruyter • Berlin • New York. DOI 10.1515/BOT.2008.013 Article in press - uncorrected proof 2008/42 Species composition and seasonal changes in macroalgal blooms in lagoons along the southeastern Gulf of California Alejandra Piñón-Gimate1, Elisa Serviere- Zaragoza2, Marı́a Julia Ochoa-Izaguirre3 and Federico Páez-Osuna4,* 1 Posgrado en Ciencias del Mar y Limnologı́a, Universidad Nacional Autónoma de México, Unidad Académica Mazatlán, Apdo. Postal 811, Mazatlán, Sinaloa 82040, Mexico 2 Centro de

REFERENCES 1. Chacko P. I., Abraham J. G. and Andal R., 1953 − Report on survey of the Flora, Fauna and Fisheries of the Pulicat Lake, Madras state, India, 1951-1952, Contribution from the Fresh Water Fisheries Biological Station , Madras, 8, 21. 2. Govindan S., Ramanibai R. and Balakrishnan T., 2015 − Avifaunal diversity and status of Pulicat Lagoon in Tamil Nadu, India ZOO’s PRINT , 30, 24-27. 3. Hazarika P., 2013 − Diversity indices of macro invertebrates in the Satajan Wetland of Lakhimpur District, Assam Lakhi, Annals of Biological Research , 4, 8, 68

Introduction Coastal lagoons act as buffers at the land-sea interface, providing valuable ecosystem services such as nutrient recycling, decomposition of organic matter and removal of pollutants. Lagoons are the regions of restricted exchange, subject to anthropogenic impact that may result in problems such as eutrophication which is a process defined as an increase in the rate of supply of organic matter to an ecosystem ( Nixon 1995 ). The eutrophication in coastal water bodies have had many contributions to specific topics about causes, nutrient recycling

1 Introduction Coastal lagoons are worldwide socio-economically fragile ecosystems of high biological productivity and nutrients availability, covering a wide variety of habitats and host abundant fauna and flora constituting a vital and important fishery and nursery ground [ 1 , 2 ]. Several proxies have been employed to study the bottom conditions of coastal lagoons; however, bottom sediment geochemistry is still the most powerful and effective proxy. Lagoonal bottom sediments are archives for environmental and climatic fluctuations and aid in forecasting the

DOI 10.1515/bot-2012-0171      Botanica Marina 2012; 55(6): 611–623 Lourdes Morquecho * , Rosalba Alonso-Rodr í guez , Jos é A. Arreola-Liz á rraga and Amada Reyes-Salinas Factors associated with moderate blooms of Pyrodinium bahamense in shallow and restricted subtropical lagoons in the Gulf of California Abstract: We examined the environmental and biological factors related to blooms of the toxic dinoflagellate Pyro- dinium bahamense in three shallow, restricted subtropical lagoons in the Gulf of California during the rainy summer. In the

The Biotic Community of the Great Lagoon and its Food Web Model