ARIELA SURYANI, ODA GRACIA (2023) STUDI SEBARAN NITRAT DAN FOSFAT DI MUARA SUNGAI LOJI DAN PUSAT INFORMASI MANGROVE, PEKALONGAN (23dos200). Undergraduate thesis, Fakultas Perikanan dan Ilmu Kelautan.

Text ODA GRACIA 23dos200.pdf Download (351kB)

Abstract

ABSTRAK
(Oda Gracia Ariela Suryani. 26050119130070. Studi Sebaran Nitrat dan Fosfat di Muara Sungai Loji dan Pusat Informasi Mangrove, Pekalongan. Denny Nugroho Sugianto dan Baskoro Rochaddi)
Muara sungai dan laguna memperoleh pembuangan limbah dari aktivitas manusia terutama untuk pelabuhan, penangkapan ikan, pemukiman, tambak, dan industri. Penelitian ini bertujuan untuk mengetahui dan menganalisis kandungan serta sebaran nitrat dan fosfat di Muara Sungai Loji dan Pusat Informasi Mangrove. Data sebaran nitrat dan fosfat yang diperoleh kemudian diinterpolasi dengan model hidrodinamika 2D arus. Hasil penelitian kandungan nitrat di Muara Sungai Loji berkisar diantara 0.014 mg/L- 0.036 mg/L, serta di Pusat Informasi Mangrove berkisar diantara 0.0065-0.1072 mg/L. Pola sebaran kandungan nitrat di Perairan Muara Sungai Loji berbentuk konvergen. Nilai kandungan nitrat yang besar ditemui di bibir pantai dan semakin mengecil saat menuju laut lepas. Nilai kandungan fosfat di Muara Sungai Loji berkisar diantara 0,0111 – 0,0119 mg/L, serta di Pusat Informasi Mangrove berkisar diantara 0,0111 – 0,0112 mg/L. Pola sebaran kandungan fosfat di Pusat Informasi Mangrove mengikuti pola sirkulasi dan bentuk kontur dari laguna di wilayah tersebut. Kandungan dan persebaran nitrat dan fosfat di Muara Sungai Loji banyak dipengaruhi oleh surut menuju pasang serta arus menyisir pantai yang terkait dengan arah angin. Kandungan dan persebaran nitrat
dan fosfat di Pusat Informasi Mangrove dipengaruhi oleh deposit dari serasah mangrove, kedalaman laguna, serta sirkulasi air sebagai akumulasi pengaruh fisika dan kimia perairan. Sehingga dapat digunakan untuk landasan pengamatan secara musiman.
Kata kunci : Nitrat, fosfat, Muara Sungai Loji, Laguna PIM, Pekalongan

ABSTRACT
(Oda Gracia Ariela Suryani. 26050119130070. Study of Nitrate and
Phosphate Distribution at the Loji River Estuary and the Mangrove Information Center, Pekalongan. Denny Nugroho Sugianto and Baskoro Rochaddi).
River estuaries and lagoons receive waste disposal from human activities, especially for ports, fishing, settlements, ponds, and industry. This research aims to determine and analyze the content and distribution of nitrate and phosphate in the Loji River Estuary and the Mangrove Information Center, Pekalongan. The obtained nitrate and phosphate distribution data were then interpolated with a 2D current hydrodynamic model. The results of research on nitrate content at Loji River Estuary waters ranged from 0.014 mg/L-0.036 mg/L, and at the Mangrove Information Center ranged from 0.0065-0.1072 mg/L. The pattern of distribution of nitrate content in the waters of Muara Sungai Loji is convergent from the coastline with a large value of nitrate content and towards the sea with a decreasing value. Phosphate content values in the Loji River Estuary ranged from 0,0111 – 0,0119 mg/L, and at the Mangrove Information Center ranged from 0,0111 – 0,0112 mg/L. The pattern of distribution of phosphate content in the Mangrove Information Center follows the circulation pattern and the contour shape of the lagoons in the area. The content and distribution of nitrate and phosphate in the Loji Estuary is heavily influenced by ebb to tide and currents combing the coast associated with wind direction. The content and distribution of nitrate and phosphate in the Mangrove Information Center is influenced by deposits from
mangrove litter, the depth of the lagoon, and water circulation as an accumulation of physical and chemical effects of the waters. So that it can be used as a base for seasonal observations.
Keyword : Nitrate, phosphate, Loji River Estuary, PIM Lagoon, Pekalongan

Actions (login required)

View Item