Karakteristik Sedimen Dan Mikroorganisma Permukaan Dasar Laut Perairan Madura Bagian Utara

Main Authors: Vijaya Isnaniawardhani, , -, Vijaya Isnaniawardhani
Other Authors: Fakultas Teknik Geologi
Format: Article NonPeerReviewed Book
Language: eng
ind
Published: fakultas Teknik Geologi Universitas Padjadjaran , 2012
Subjects:
Online Access: http://repository.unpad.ac.id/14940/1/pustaka_unpad_karakter_sedimen_dan_mikroorgan.pdf
http://repository.unpad.ac.id/14940/
http://jurnal.unpad.ac.id/bsc/article/view/8275
http://jurnal.unpad.ac.id/bsc/article/view/8275/3822
Table of Contents:
  • Penelitian ini dilakukan untuk mengetahui karakteristik sedimen, khususnya tekstur sedimen, serta kandungan dan penyebaran mikroorganisma (nannoplankton dan foraminifera) pada sedimen permukaan dasar laut Perairan Madura bagian utara. Analisis karaktersistik sedimen dimaksudkan untuk mengetahui tekstur sedimen, adapun analisis mikroorganisma untuk mengetahui kelimpahan, genus dan spesies dominan atau khas di daerah ini serta kaitannya dengan batimetri dab posisinya terhadap garis pantai.Analisis laboratorium dilakukanterhadap 15sampel permukaan dasar laut Perairan Utara Madura, dengan kisaran kedalaman antara 5 77 m. Berdasarkan tekstur sedimen dapat diketahui bahwa sedimen tersusun oleh lempung, lempung lanauan dan lanau pasiran, yang umumnya mengandung pecahan cangkang mikroorganisma. Pada sedimen permukaan dasar laut ini dapat dideterminasi 20 spesies nannoplankton serta 16spesies foraminifera plankton dan 30spesies foraminifera benton, dengan kelimpahan sedang. Kelimpahan dan keanekaragaman nannoplanktoncenderung meningkat dengan peningkatan kedalaman dan jarak terhadap garis pantai. Kelimpahan dan keanekaragamanterendah berada di sekitar garis pantai utara Pulau Jawa dan Selat Madura. Hal ini kemungkinan disebabkan pengaruh antripogenik di daerah ini. Spesies yang dijumpai relatif merata dan selalu muncul pada setiap sampel adalah Emiliania huxleyi dan Gephyrocapsa oceanica. Gephyrocapsa dijumpai dominan pada sampel-sampel di sekitar garis pantai. Kelimpahan dan keanekaragaman foraminifera plankton cenderung meningkat dengan peningkatan kedalaman dan jarak terhadap garis pantai. Globigerinoides ruber sangat umum dijumpai. Foraminifera benton didominasi oleh kelompok Rotalina. Adapun genus yang umum dijumpai adalah Ammonia, Quinqueloculina, Spiroloculina, Triloculina, Asterorotalia, Cibicides, Cancris, Elphidium, Pseudorotalia dan Textularia, yang cenderung lebih melimpah di lokasi yang berada di bagian utara (jauh dari pantai). Cibicides menunjukkan kelimpahan maksimum pada daerah yang relatif jauh dari garis pantai. Ratio kelimpahan foraminifera plankton terhadap total foraminifera cenderung meningkat dengan peningkatan jarak terhadap garis pantai dan kedalaman. Characteristics of the river basin in Citanduy landslide prone areas are showing behaviors that can The study was conducted to investigate the characteristics of the sediment, particularly sediment texture, and the amount and spread of microorganisms (nannoplankton and foraminifera) at the seafloor surface sediments of the northern waters of Madura. Karaktersistik sediment analysis is intended to determine the sediment texture, as for the analysis of microorganisms to determine the abundance, genus and species or the dominant characteristic in this area and its relation to bathymetric position on the line pantai.Analisis dab dilakukanterhadap laboratory 15sampel seabed surface waters of the North Madura, with a depth range between 5-77 m. Based on sediment texture can be seen that the sediment is composed of clay, silt and clay lanauan pasiran, which generally contains shell fragments microorganisms. On the seafloor surface sediments can be determined 20 species of nannoplankton and planktonic foraminifera and 30spesies 16spesies Benton foraminifera, with an abundance of being. Abundance and diversity increased with increasing depth nannoplanktoncenderung and proximity to the shoreline. Abundance and keanekaragamanterendah around the northern coastline of the island of Java and Madura Strait. This is probably due to the influence of antripogenik in this area. Species that were found relatively evenly and always appear in each sample was Emiliania huxleyi and Gephyrocapsa Oceanica. Gephyrocapsa is found predominantly in samples around the shoreline. Planktonic foraminifera abundance and diversity tends to increase with increasing depth and distance to the shoreline. Globigerinoides ruber is very common. Benton foraminifera dominated by Rotalina. The common genus is Ammonia, Quinqueloculina, Spiroloculina, Triloculina, Asterorotalia, Cibicides, Cancris, Elphidium, and Textularia Pseudorotalia, which tend to be more abundant at sites located in the north (away from the beach). Cibicides showed maximum abundance in the relatively distant from the coastline. Ratio of the total abundance of foraminifera plankton foraminifera tend to increase with increasing distance to the shoreline and depth
  • Characteristics of the river basin in Citanduy landslide prone areas are showing behaviors that canThe study was conducted to investigate the characteristics of the sediment, particularly sediment texture, and the amount and spread of microorganisms (nannoplankton and foraminifera) at the seafloor surface sediments of the northern waters of Madura. Karaktersistik sediment analysis is intended to determine the sediment texture, as for the analysis of microorganisms to determine the abundance, genus and species or the dominant characteristic in this area and its relation to bathymetric position on the line pantai.Analisis dab dilakukanterhadap laboratory 15sampel seabed surface waters of the North Madura, with a depth range between 5-77 m. Based on sediment texture can be seen that the sediment is composed of clay, silt and clay lanauan pasiran, which generally contains shell fragments microorganisms. On the seafloor surface sediments can be determined 20 species of nannoplankton and planktonic foraminifera and 30spesies 16spesies Benton foraminifera, with an abundance of being. Abundance and diversity increased with increasing depth nannoplanktoncenderung and proximity to the shoreline. Abundance and keanekaragamanterendah around the northern coastline of the island of Java and Madura Strait. This is probably due to the influence of antripogenik in this area. Species that were found relatively evenly and always appear in each sample was Emiliania huxleyi and Gephyrocapsa Oceanica. Gephyrocapsa is found predominantly in samples around the shoreline. Planktonic foraminifera abundance and diversity tends to increase with increasing depth and distance to the shoreline. Globigerinoides ruber is very common. Benton foraminifera dominated by Rotalina. The common genus is Ammonia, Quinqueloculina, Spiroloculina, Triloculina, Asterorotalia, Cibicides, Cancris, Elphidium, and Textularia Pseudorotalia, which tend to be more abundant at sites located in the north (away from the beach). Cibicides showed maximum abundance in the relatively distant from the coastline. Ratio of the total abundance of foraminifera plankton foraminifera tend to increase with increasing distance to the shoreline and depth.