Oktavian, Bayu
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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EPIPHYTIC DINOFLAGELLATES ANALYZE ON Thalassia hemprichii AT NIRWANA BEACH TELUK KABUNG DISTRICT PADANG CITY WEST SUMATERA PROVINCE Oktavian, Bayu; Siregar, Yusni Ikhwan
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Dinoflagellates is group of phytoplankton as a primary producer. Dinoflagellates can be planctonic also epiphytic. This research was conducted in January 2017 in Nirwana Beach Padang City West Sumatera Province which aims to determine the abundance of dinoflagellates, genera of dinoflagellates and its association with waters quality parameter used survey method. Nirwana Beach is dominated by Thalassia hemprichii, seaweed and coral reef. Purposive sampling method to select the research stations which 3 stations that represent the sampling location. Chemical and phisic waters quality measured by insitu and exsitu. The results showed that 4 genera of epiphytic dinoflagellates identified that are Amphidinium, Gambierdiscus, Ostreopsis dan Prorocentrum. The abundance of dinoflagellates is higher at 1st station with 333,18 cells g-1 and smaller at 2nd station with 224,06 cells g-1. Analysis of linear regression showed that nitrate concentration directly proportional with dinoflagellates abundance with equation y = 200,96 + 1336,7x and phospate concentration inversely proportional with dinoflagellates abundance with equation y = 345,09 + (-1868,4)x.Keywords: Dinoflagellates, Thalassia hemprichii, Nirwana Beach, Abundance
Karakteristik Lingkungan dan Kondisi Fauna Makrobentik Di Kawasan Reboisasi Mangrove Pulau Pramuka, Panggang, dan Karya, Kepulauan Seribu, Indonesia [Environmental Characteristics and Conditions of Macrobentic Fauna in the Mangrove Reforestation Area of Pramuka, Panggang, and Karya Island, Seribu Islands, Indonesia] Syahrial, Syahrial; Purwanti, Neneng; Adelina Meria Uli Sagala, Herlina; Atikah, Nur; Sari, Yulina; Oktavian, Bayu; Simbolon, Novhitasari
Jurnal Ilmiah Perikanan dan Kelautan Vol 11, No 1 (2019): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v11i1.10770

Abstract

AbstrakKajian karakteristik lingkungan dan kondisi fauna makrobentik di kawasan reboisasi mangrove Pulau Pramuka, Panggang dan Karya, Kabupaten Kepulauan Seribu telah dilakukan pada bulan April 2014. Kajian ini bertujuan sebagai data dasar dalam pengelolaan mangrove di Indonesia khsususnya pasca penanaman mangrove. Pengukuran karakteristik lingkungan dilakukan dengan cara insitu, sedangkan pengumpulan fauna makrobentik dengan membuat transek garis dan plot yang ditarik dari titik acuan (tegakan mangrove terluar) dan tegak lurus garis pantai sampai ke daratan. Hasil kajian memperlihatkan bahwa karakteristik lingkungan yang diukur tidak begitu berbeda antar stasiun dan juga tidak melebihi baku mutu untuk kehidupan biota laut. Sebanyak 6 spesies fauna makrobentik telah ditemukan dengan kepadatan yang bervariasi. Kepadatan tertingginya berada di Stasiun 3 (05.00 ind/m2) dan terendahnya di Stasiun 1 (02.00 ind/m2). Selain itu, fauna makrobentik Atilia (Columbella) scripta, Metopograpsus latifrons, Littoraria scabra, Saccostrea cucculata dan Cardisoma carnifex berasosiasi atau berkaitan erat dengan stasiun yang bersubstrat lanau maupun pasir. Selanjutnya parameter kualitas air yang paling menentukan distribusi dan kepadatan fauna makrobentik di kawasan reboisasi mangrove Pulau Pramuka, Panggang, dan Karya, Kabupaten Kepulauan Seribu adalah pH. AbstractThe study of the environmental characteristics and conditions of macrobenthic fauna in the mangrove reforestation area of Pramuka, Panggang, Karya, and the Seribu Islands was carried out in April 2014. This study aims at the basic data in mangrove management in Indonesia, especially after mangrove planting. Measurement of environmental characteristics is carried out by in-situ methods while collecting macrobenthic fauna by making line transects and plots drawn from the reference point (outermost mangrove stands) and perpendicular to the coastline to the mainland. The results of the study show that the measured environmental characteristics are not very different between stations and also do not exceed the quality standards for marine life. A total of 6 macrobenthic fauna species have been found with varying densities. The highest density is at Station 3 (05.00 ind/m2) and the lowest is at Station 1 (02.00 ind/m2). In addition, the macrobenthic fauna Atilic (Columbella) scripta, Metopograpsus latifrons, Littoraria scabra, Saccostrea cucculata and Cardisoma carnifex are associated or closely related to silt or sand substrates. Furthermore, the water quality parameters that most determine the distribution and density of macrobenthic fauna in the mangrove reforestation area of Pulau Pramuka, Panggang and Karya Seribu Islands District are pH.