Tabash Blanco Farid A
Estación de Biologia Marina, Escuela de Ciencias Biológicas, Universidad Nacional, Puntarenas, Costa Rica.
Rev Biol Trop. 2007 Mar;55(1):33-42.
In agreement with the Broecker and Penn two-boxes model, I generated a biogeochemical balance model for the Gulf of Nicoya (Guanacaste, Costa Rica) using two nutrient reservoirs: surface water and deep water. The mixing zone was located at a depth of 20 m. There is a balance between surface waters descending to the bottom and upwelling waters that carry nutrients and other chemical elements to the surface. The main source of nitrogen (nitrate), was the outlet of the Tempisque and Tárcoles rivers. The Gulf of Nicoya is a net source of Dissolved Inorganic Nitrogen (DIN) with an availability rate of 87 x 10(3) mol day(-1) in the dry season and 3044 x 10(3) mol day(-1)in the rainy season. Dissolved Inorganic Phosphate (DIP) was estimated in 27 mol day(-1) in the dry season and 207 mol day(-1) in the rainy season. The dynamics of these biolimited nutrients, in relation to runoff seasonal variations, fits the biological processes reported for the gulf, for example, for variations in primary productivity levels, and maturity and reproduction seasons for species with short and long life cycles.
与布罗克和佩恩的双箱模型一致，我利用两个营养库（地表水和深水）生成了尼科亚湾（哥斯达黎加瓜纳卡斯特省）的生物地球化学平衡模型。混合区位于20米深处。地表水下沉至海底与将营养物质和其他化学元素带到表层的上升流之间存在平衡。氮（硝酸盐）的主要来源是坦皮斯克河和塔尔科莱斯河的河口。尼科亚湾是溶解无机氮（DIN）的净源，旱季的供应率为87×10³摩尔/天，雨季为3044×10³摩尔/天。溶解无机磷（DIP）在旱季估计为27摩尔/天，雨季为207摩尔/天。这些生物限制营养物质的动态变化，与径流的季节性变化相关，符合该海湾报道的生物过程，例如初级生产力水平的变化，以及具有短生命周期和长生命周期物种的成熟和繁殖季节。
