Impact of Monsoon to Aquatic Productivity and Fish Landing at Pesawaran Regency Waters

3rd International Conference on Tropical and Coastal Region Eco Development 2017

地球科学;生态环境科学

Kunarso^1,3 ; Zainuri, Muhammad^1,3 ; Ario, Raden^2 ; Munandar, Bayu^1 ; Prayogi, Harmon^1

Department of Oceanography, Faculty of Fisheries and Marine Science, Diponegoro University, Jl. Prof. H. Soedarto, SH, Tembalang, Semarang

50275, Indonesia^1

Department of Marine Science, Faculty of Fisheries and Marine Science, Diponegoro University, Jl. Prof. H. Soedarto, SH, Tembalang, Semarang

50275, Indonesia^2

Center for Coastal Rehabilitation and Disaster Mitigation Studies (CoREM), Diponegoro University, Center of Excellence Science and Technology (PUI), Indonesia^3

关键词: Catch per unit efforts;    Marine productivity;    Maximum wind speed;    MODIS satellite images;    Monsoon variability;    Pesawaran Regency;    Sea surface temperature (SST);    Wind parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/116/1/012021/pdf
DOI  :  10.1088/1755-1315/116/1/012021

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Monsoon variability influences the productivity processes in the ocean and has different responses in each waters. Furthermore, variability of marine productivity affects to the fisheries resources fluctuation. This research has conducted using descriptive method to investigate the consequences of monsoon variability to aquatic productivity, sea surface temperature (SST), fish catches, and fish season periods at Pesawaran Regency waters, Lampung. Variability of aquatic productivity was determined based on chlorophyll-A indicator from MODIS satellite images. Monsoon variability was governed based on wind parameters and fish catches from fish landing data of Pesawaran fish market. The result showed that monsoon variability had affected to aquatic productivity, SST, and fish catches at Pesawaran Regency waters. Maximum wind speed and lowest SST occurred twice in a year, December to March and August to October, which the peaks were on January (2.55 m/s of wind speed and 29.66 C of SST) and September (2.44 m/s of wind speed and 29.06 C of SST). Also, Maximum aquatic productivity happened on January to March and July to September, which it was arisen simultaneously with maximum wind speed and the peaks was 0.74 mg/m3and 0.78 mg/m3, on February and August respectively. The data showed that fish catches decreased along with strong wind speed and low SST. However, when weak wind speed and high SST occurred, fish catches increased. The correlation between Catch per Unit Effort (CPUE) with SST, wind speed, and chlorophyll-A was at value 0.76,-0.67, and-0.70, respectively. The high rate fish catches in Pesawaran emerged on March-May and September-December.