Fuad Ardani Rahman, Muhammad Zainuri, Kunarso, Sugeng Widada, Kresno Yuntoro, Bhekti Kumorowati
Pekalongan National Fishery Port (PPN), the largest port on the northern coast of Java, supports extensive fish auction activities and other operations around the port area, potentially contributing to marine pollution. However, this coastal marine environment is influenced by natural processes, such as sedimentation, freshwater flows, mangroves, and conservation efforts. This study aims to observe the abundance of macronutrients, specifically phosphorus and nitrate, along with bacterial distributions across geospatial locations to assess the sustainability of the surrounding marine biota. Laboratory results show that phosphate levels in May were lower than in August and December, nitrate levels peaked in December, and bacterial abundance was highest in December. Geospatial analysis reveals that current movement affects the accumulation of organic materials along the coast, with seasonal changes and rainfall impacting the aquatic conditions substantially. © 2025, BIOFLUX SRL. All rights reserved.
Faculty of Engineering, Merchant Ship Polytechnic, Singosari No. 2A, Central Java, Semarang City, 50242, Indonesia; Department of Oceanography, Faculty of Fisheries and Marine Sciences, Diponegoro University, Jl. Prof. H. Soedarto, S.H, Tembalang, Semarang City, 50275, Indonesia; Faculty of Engineering, Merchant Ship Polytechnic, Singosari No. 2A, Semarang City, 50242, Indonesia; Physics Education Study Program, Semarang State University, Bendan Ngisor, Semarang, 50233, Indonesia
