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Journal of Marine and Aquatic Sciences
Published by Universitas Udayana
ISSN : 23028114     EISSN : 25497103     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
Journal of Marine and Aquatic Sciences (JMAS) adalah peer-reviewed, open access journal, diterbitkan oleh fakultas Kelautan dan Perikanan, Universitas Udayana. JMAS menerbitkan hasil peneitian original dan review artikel dalam bidang ilmu kelautan, manajemen sumberdaya perairan, dan aplikasi remote sensing di bidang kelautan dan perikanan.
Arjuna Subject : -
Articles 13 Documents
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Search results for , issue "Vol 3 No 2 (2017)" : 13 Documents clear
Pemantauan Kondisi Ikan Karang Menggunakan Metode Reef Check Di Perairan Selat Sempu Malang Selatan Oktiyas Muzaky Luthfi; Riza Alifia; Sherla Rizqia Putri; Firmina Bethrix Dasi; Bramastrha Artha Putra; Davitra Eka Permana; Elda Pebrizayanti; Muhammad Zuhal Fikri; Johan Saputro; Christopher Ari Setiawan; Krista Sibuea; Abdul Razak
Journal of Marine and Aquatic Sciences Vol 3 No 2 (2017)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (625.576 KB) | DOI: 10.24843/jmas.2017.v3.i02.171-179

Abstract

Reef Check is an activity to find out the condition of coral reefs and its surrounding ecosystems be then described and categorized its healthiness. The island of Java is one of the Islands in Indonesia that has lots of beaches, especially for East Java, here they have several areas that has become our research site in Sempu Strait, Sendang Biru, South Malang they are called Teluk Semut, Watu Meja, and Waru-waru. Underwater Visual Census (UVC) was used as a method for this research to identify reef fish in a transect of 100 x 5 x 5m scale in (Length, Width, and Height). Results shows several fishes was used to identify yet the family of Chaetodontidae with mean abundance 8 in Teluk Semut 1 station, 2.25 in Teluk Semut 2 station, 12.5 in Rumah Ikan station, & 13.5 in Watu Meja station. Watu Meja and Fish Apartment station shows higher mean abundance than other station, this indicates coral reefs ecosystem in this station have a better health & condition compare to the other stations. Results for family family Haemulidae, Snapper and Grouper shows low mean abundance, that indicates overfishing on Sempu Strait, South Malang. In other cases, the purposes of Reef Check is to determine the extents of human activities and its impact against the distribution and the healthiness of coral reefs in the area. For further extent, there has been still indications toward its management system yet fisheries potential in certain areas for this research.
Bioassessment dan Kualitas Air Daerah Aliran Sungai Legundi Probolinggo Jawa Timur Meta Apriliawati Sandi; I Wayan Arthana; Alfi Hermawati Waskita Sari
Journal of Marine and Aquatic Sciences Vol 3 No 2 (2017)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (830.204 KB) | DOI: 10.24843/jmas.2017.v3.i02.233-241

Abstract

Legundi River is one of the six rivers in Probolinggo. Water is used for local community irrigation system of the rice fields. Makrozoobenthos was affected by the physical and chemical factors of the water condition. In order to determine the health of water in the river, it was applied water biological condition assessment technique by using biological parameter (bioassessment). This research used bioassessment with biotilik approach (invertebrate indicator of water quality) and Family Biotic Index (FBI). This research aimed to to find out the composition of biotilik, the water quality based on the physical and chemical factors, and the water status through biotilik indicator in Legundi River. This research was done in Legundi River on January until Pebruary 2017. The method which was used in this research was the direct observation by using purposive sampling to determine the location of the sampling. The result showed that the dominant biotilik composition was Hydropsychidae* (602), Thiaridae (258), and Parathelpusidae (209). The characteristics of the water from the upstream to downstream was as follows, temperature: 26,37 – 27,37 ?C, pH: 6,49 – 7,94, DO: 6,95 – 8,86 mg/l, turbidity: 1,16 – 3,58 NTU, BOD: 6,74 – 9,1 mg/l, and COD: 8,823 – 9,459 mg/l. The analysis of the biotilik index showed that the water was slightly clean with moderate pollution; and the analysis by using the Family Biotic Index showed that the water was not polluted.
Hubungan Kepadatan Bulu Babi (Echinoidea) dan Tutupan Terumbu Karang pada Kawasan Intertidal Pantai Sanur Tiara Permata Sari; Abd. Rahman As-syakur; Yulianto Suteja; Dwi Budi Wiyanto
Journal of Marine and Aquatic Sciences Vol 3 No 2 (2017)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (757.93 KB) | DOI: 10.24843/jmas.2017.v3.i02.134-141

Abstract

Marine intertidal region is an area that is affected by the mainland. One of the ecosystems found in the intertidal area is the coral reef ecosystem. Urchin is one that lives on these ecosystems. Sanur Beach area has coral reefs and the intertidal zone is quite extensive. The many activities and cruise tourism in Sanur Beach will indirectly affect the life of coral reefs and associated animal in it in this case urchins. The purpose of this study was to determine the relationship density of sea urchins and coral reefs cover percentage in the intertidal area on Sanur Beach. Research done during low tide. Coral reef data collection method and the density of sea urchins using 5x5m quadratic transects were analyzed using Pear Person bivariate correlations. Urchin densities ranging between 0-2.04 ind/m2. The percentage cover coral reefs ranged from 0.1- 17.9%. High and low density of sea urchins and the percentage of coral reefs affected allegedly incompatibility place their lives and because of pressure from community activities in Sanur. The density of sea urchins and the percentage of coral cover has a significant relationship with a strong degree of correlation is 0.79. Positive direction on that relationship means that the higher percentage of coral reefs, the higher density of sea urchins. This assume in which they live almost the same that is in need of a hard substrate and urchins use of coral reefs as a shelter.

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