Dahunsi Adeola M, Oyikeke Tolulope S, Abdulfatai Mujeeb A, Afolabi Lateef A
University of Abomey-Calavi, Cotonou, Benin.
Department of Climate Change and Marine Sciences, Universidade Técnica do Atlântico (UTA)-ISECMAR, Cape Verde.
Heliyon. 2023 Jan 18;9(1):e13047. doi: 10.1016/j.heliyon.2023.e13047. eCollection 2023 Jan.
This study applied ocean models data from Copernicus Marine Environment Monitoring Service (CMEMS) in assessing the impacts of the trends in key ocean parameters on the primary production of the Gulf of Guinea (GoG). Trend analyses, from 1993 to 2020, were done using linear regression and Mann-Kendall significance test methods to ascertain inter-annual and inter-seasonal variations and check the significance of the trends, respectively. Results affirm that temperature, salinity, nutrients, and oxygen play significant roles in the primary production of the GoG. Also, parameters such as temperature, salinity, chlorophyll-A, net primary production, phosphate, and dissolved oxygen have been experiencing increases between the study duration while silicate and nitrate have been declining in the GoG. However, there are regions and years with contrary values to the average trends. The varying level of significance of the trend showed that the impacts of the climate on the primary production of the GoG vary basin-wide.
本研究应用哥白尼海洋环境监测服务（CMEMS）的海洋模型数据，评估关键海洋参数趋势对几内亚湾（GoG）初级生产力的影响。使用线性回归和曼-肯德尔显著性检验方法进行了1993年至2020年的趋势分析，分别确定年际和季节间变化，并检验趋势的显著性。结果证实，温度、盐度、营养物质和氧气在几内亚湾的初级生产力中发挥着重要作用。此外，在研究期间，温度、盐度、叶绿素A、净初级生产力、磷酸盐和溶解氧等参数呈上升趋势，而几内亚湾的硅酸盐和硝酸盐则呈下降趋势。然而，有些区域和年份的数值与平均趋势相反。趋势的显著程度不同表明，气候对几内亚湾初级生产力的影响在整个海域有所不同。
