Physicochemical measurements in the Macapule Lagoon (Gulf of California, Mexico) in 2013-2015@en

The Macapule Lagoon (25º 21' and 25º 24' N; 108º 30' and 108º 45' W) is part of the San Ignacio-Navachiste-Macapule lagoon system, located in the southern region of the Gulf of California (Fig. 1). In 2000, it has been declared an \"Area of Reserve and Refuge for Migratory Birds and Wildlife – Gulf of California Islands\". This lagoon is very productive due to its location in the Gulf of California (Lluch-Cota et al. 2007). Water temperature, dissolved oxygen, pH, and salinity were measured in situ with an YSI (55-12FT) probe and a portable refractometer (RHS-10ATC). Nutrient (nitrate, ammonium, and phosphate) concentrations were determined in the laboratory during each sampling month using a photometer (YSI, 9500).马卡普勒泻湖（Macapule Lagoon）的地理坐标为北纬25°21′至25°24′、西经108°30′至108°45′，隶属于圣伊格纳西奥-纳瓦奇斯特-马卡普勒泻湖系统，地处加利福尼亚湾南部区域（图1）。2000年，该区域被正式划定为“加利福尼亚湾岛屿候鸟与野生动物保护及庇护区”。该泻湖因地处加利福尼亚湾海域，生态生产力极高（Lluch-Cota等，2007）。研究人员采用YSI（55-12FT）型探头与便携式折射仪（RHS-10ATC）原位测定了水体温度、溶解氧、pH值及盐度。每月采样期间，研究人员在实验室使用光度计（YSI 9500）测定了硝酸盐、铵盐与磷酸盐等营养盐的浓度。