Estimasi Kelimpahan Plankton Berdasarkan Data Water Column Echosounder dan Korelasinya dengan Jalur Migrasi Paus

Putranto, Andreas Wahyu (2023) Estimasi Kelimpahan Plankton Berdasarkan Data Water Column Echosounder dan Korelasinya dengan Jalur Migrasi Paus. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 03311940000027-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 October 2025. Download (12MB) | Request a copy

Abstract

Plankton mendukung kehidupan laut melalui berbagai cara, dengan melakukan fotosintesis dan menjadi sumber makanan utama bagi banyak jenis ikan dan biota laut lainnya. Namun informasi kelautan terutama mengenai kelimpahan plankton sangat sedikit dan tidak tersebar merata di Indonesia, terutama di perairan Flores. Tujuan utama penelitian ini adalah untuk memahami persebaran kelimpahan plankton secara horizontal dan bagaimana densitas plankton mempengaruhi jalur migrasi paus. Pengumpulan data dilakukan dalam ekspedisi Jala Citra 3 yang dilaksanakan oleh Pusat Hidro-Oseanografi Angkatan Laut Indonesia. Instrumen yang digunakan dalam penelitian ini adalah multibeam echosounder Kongsberg EM302 yang beroperasi pada frekuensi 30kHz dan mengumpulkan data batimetri serta kolom air. Penelitian ini membandingkan nilai Volume Backscattering Strength (SV) yang didapat melalui perekaman echosounder dengan tingkah laku zooplankton yang diamati. Didapatkan hasil bahwa Laut Flores memiliki kondisi fisik dan biologi yang beragam. Kedalaman yang bervariasi pada dua jalur survei dari angka 83,844 meter hingga 4.741,374 meter memengaruhi laut dan persebaran horizontal plankton secara signifikan. Biota laut seperti ikan dan plankton lebih banyak berkumpul di wilayah perairan dengan kedalaman yang lebih dangkal seperti di Selat Alor. Kelimpahan plankton dan organisme lain seperti kril dan ikan kecil juga mempengaruhi rute migrasi paus yang datang dari perairan Australia menuju Laut Banda.
==============================================================================================================================
Plankton support marine life in many different ways, by photosynthesizing and becoming the primary food source for many fish species and other marine life. However, there is very little marine information regarding plankton abundance and it is not evenly distributed in Indonesia, especially in Flores waters. The main objective of this study is to understand the horizontal distribution of plankton abundance and how plankton density affects whale migration routes. Data were collected during the Jala Citra 3 expedition conducted by the Indonesian Navy's Hydro-Oceanographic Center. The instrument used in this study was a Kongsberg EM302 multibeam echosounder operating at a frequency of 30kHz that collected bathymetry and water column data. This study compared the Volume Backscattering Strength (SV) value obtained through echosounder recording with the observed zooplankton behavior. It was found that the Flores Sea has diverse physical and biological conditions. The varying depths in the two survey lines ranging from 83.844 meters to 4,741.374 meters significantly affected the sea and the horizontal distribution of plankton. Marine life such as fish and plankton are more abundant in shallower water areas such as the Alor Strait. The abundance of plankton and other organisms such as krill and small fish affects the migratory routes of whales coming from Australian waters to the Banda Sea.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Migrasi Paus, Multibeam Echosounder, Plankton, Water Column Whale Migration, Multibeam Echosounder, Plankton, Water Column
Subjects:	G Geography. Anthropology. Recreation > G Geography (General) > G109.5 Global Positioning System G Geography. Anthropology. Recreation > G Geography (General) > G70.217 Geospatial data G Geography. Anthropology. Recreation > GC Oceanography Q Science > QH Biology > QH541 Ecology
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Geomatics Engineering > 29202-(S1) Undergraduate Thesis
Depositing User:	Andreas Wahyu Putranto
Date Deposited:	23 Aug 2023 05:55
Last Modified:	23 Aug 2023 05:55
URI:	http://repository.its.ac.id/id/eprint/103315

Actions (login required)

View Item