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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis Jurnal Kelautan : Indonesian Journal of Marine Science and Technology
Fakhrizal Setiawan
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Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Library & Information Science

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Dampak Pemutihan Karang Tahun 2016 Terhadap Ekosistem Terumbu Karang: Studi Kasus Di TWP Gili Matra (Gili Air, Gili Meno dan Gili Trawangan) Provinsi NTB Coral Bleaching Impact in 2016 Towards Coral Reef Ecosystem: Case Studies TWP Gili Matra (Gili Air, Fakhrizal Setiawan; Azhar Muttaqin; S.A. Tarigan; M Muhidin; H Hotmariyah; Abdus Sabil; Jessica Pinkan
Jurnal Kelautan Vol 10, No 2 (2017)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v10i2.2878

Abstract

ABSTRACTIncreased sea surface temperatures due to global warming that occurred from the early to mid 2016 caused of coral bleaching in several locations in TWP Gili Matra. Observations of coral bleaching  obtained from coral colonies compotition affected by bleaching (50%), white (18%), death (1%) and was not affected (31%). These implications resulting decline in coral cover but not significant (F (1,013) = 0.333, p 0.05) from 23,43% ± 2,61 SE in 2012 to 18,48% ± 4,14 SE in 2016 and a significant decrease (P (58,06) = 3,8e-06) recruitment of coral (coral Juvenil) from 6,66 ind.m-1 ± 1,04 SE in 2012 to 1,41 ind.m-1 ± 0,16 SE in 2016. the other impact is a significant reduction (P(20.84) = 0,00053, p 0,001) the abundance of reef fish from 28.733,26 ind.ha-1 ± 3.757,89 SE in 2012 to 11.431,18 ind.ha-1 ± 702,53 SE in 2016 and a decline in the biomass of reef fish but not significant (F (0,58) = 0,46, P 0.05) from 506,56 kg.ha-1 ± 99,05 SE in 2012 to 438,41 kg.ha-1 ± 45,69 SE in 2016. The decline of coral recruitment resulted in the recovery of the affected areas bleaching becomes slow because of the juvenile new coral mostly dead. The second impact of bleaching is an abundance of fish decrease, indicating that is available only fish big size (adult) and very less of small fishes, including juvenile. Keywords: global warming, coral bleaching, coral cover, reef fishes
BIODIVERSITAS IKAN KARANG DI WILAYAH BENTANG LAUT LESSER SUNDA BANDA (KAB. FLORES TIMUR, ALOR DAN MALUKU BARAT DAYA), INDONESIA Fakhrizal Setiawan; Muttaqin Azhar; E Estradivari; Efin Muttaqin; Sukmaraharja A Tarigan; Tutus Wijanarko; K Khaifin; Nara Wisesa; Aditano Y Retrawimbi; M Muhidin; Hedra Akhrari; Sanca Sadewa
Jurnal Kelautan Vol 10, No 1 (2017)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v10i1.1349

Abstract

Sebanyak 62 titik penyelaman dilakukan untuk memberi gambaran mengenai ikan karang yang terdapat di wilayah perbatasan Propinsi NTT dan Maluku di Indonesia. Tutupan karang hidup menunjukan umumnya kondisi tutupan karang berada pada kategori baik dengan nilai rata-rata 62,51%. Ikan karang yang ditemukan dalam survei ini terdiri dari 468 spesies dalam 47 Famili ikan karang dimana biomassa ikan karang tertinggi terdapat Kab. MBD (Rata-rata 12.476,32 Kg/Ha) sedangkan yang terendah terdapat di Kab. Flores Timur (rata-rata 652,83 Kg/Ha). Nilai Kelimpahan ikan karang tertinggi terdapat di Kab. MBD (rata-rata 13.308 Ind/Ha) dan yang terendah terdapat di Kab. Flores Timur (rata-rata 1.502.23 Ind/Ha). Struktur komunitas ikan karang berdasarkan indeks shanon-weinner (H’) berada kategori sedang, nilai indeks keseragaman (E) masuk kategori labil dan nilai dominansi (C) masuk dominansi rendah sehingga ekosistem masih dalam kondisi baik. Kesamaan spesies ikan karang menggunakan hasil cluster analysis pada taraf penskalaan 66,37 % dan MDS (Multi Dimensional Scalling) mengelompokkan ikan karang kedalam 2 grup yaitu ikan karang di wilayah Kab. Alor dan Flores Timur dan Kabupaten Maluku Barat Daya di kolompok lainnya. Hasil dari analisis klatser dan MDS memperlihatkan Kab. Alor dan Flores timur di Provinsi NTT yang masuk wilayah geografis Lesser Sunda memiliki perbedaan ikan karang dengan Kab. Maluku Barat Daya di Provinsi Maluku yang secara geografis masuk area Banda seascapes. Secara keseluruhan ikan karang di Kab. MBD memiliki potensi yang sangat tinggi dilihat dari kelimpahan, biomasa dan nilai ekologi lainnya. Lokasi ini bisa dikembangkan menjadi sumber protein hewani yang potensial bagi masyarakat disana maupun tingkat nasional.Kata kunci: Ikan karang, Biomassa, kelimpahan, Lesser sunda, Flores Timur, Alor, Maluku Barat Daya. REEF FISHES BIODIVERSITY OF LESSER SUNDA-BANDA SEASCAPE (EAST FLORES, ALOR AND SOUTH WEST MALUKU DISTRICT) IN INDONESIAABSTRACT A total of 62 dive sites were made to provide an overview of reef fish found in the border region of the Province of NTT and Maluku in Indonesia. Live coral cover shows the general condition of the coral cover is in good category with an average value of 62.51%. Reef fish found in this survey consists of 468 species in 47 Famili reef fish reef where fish biomass is highest Kab. MBD (average 12.476,32 kg.ha-1), while the lowest was in the district. East Flores (an average of 652,83 kg.ha-1). The value of reef fish abundance is highest in the district MBD (average 13.308 ind.ha-1) and the lowest was in the district East Flores (average 1.502,23 ind.ha-1). Reef fish community structure based-weinner Shannon index (H') was the medium category, evenness indice value (E) in the category volatile and the value of dominance (C) enters a low dominance so that the ecosystem is still in good condition. The similarity of species of reef fish using cluster analysis results at the level of scaling 66.37% and MDS (Multi Dimensional Scaling) breaks down into two groups of reef fish that reef fish in the district Alor and East Florest and district of Southwest Maluku in other group. Results of the cluster analysis and MDS showed Alor and East Flores regency in NTT Prvince incoming Lesser Sunda seascapes have different reef fish by the District of Southwest Maluku in Maluku Province incoming Sunda Banda seascapes. Overall reef fish in the district. MBD has a very high potential views of abundance, biomass and other ecological values. This location can be developed into a potential source of animal protein for the people there as well as national level. Keywords: Reef fishes, biomass, abundance, Lesser Sunda, sunda banda seascape
THE COMPOSITION OF SPESIES AND CHANGES IN REEF FISHES COMMUNITY AT ECOREEF REHABILITATION SITE, MANADO TUA ISLAND, BUNAKEN NATIONAL PARK Fakhrizal Setiawan; Tries B. Razak; Idris Idris; Estradivari Estradivari
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 5 No. 2 (2013): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (530.942 KB) | DOI: 10.29244/jitkt.v5i2.7566

Abstract

The study conducted from 2006 to 2012 with an interval of every two years in the ecoreef area of ​​ Manado Tua island found 2,936 individual reef fishes of 181 species that include into 32 families. Species composition value of the 10 dominant species of reef fishes was 55.48% of the total species. The highest number of species was Plotosus lineatus with schooling behavior which only discovered in 2010 at a depth of 3 meters. Ecoreef area of Manado Tua island, when analyzed from the abundance and biomass of reef fishes exhibited a succession of reef fish that have been stable, with peak abundance and higher biomass in 2008 and 2010. Reef fish found in ecoreef seemed to start a new living and become a new habitat for them. These were indicated by the highest biomass during the previous year but the number of individuals and spesies were decline. There was no change in the structure of reef fish communities in the ecoreef area of Manado Tua Island, which characterized by non significant different ecological index between the years. Cluster analyses grouped reef fish species into 2 groups i.e., the group of 2006 and the group of 2008, 2010, and 2012. Early survey in 2006 showed lower abundance of reef fish species for allegedly associated with low ecoreef organisms. Keywords:  ecoreef, spesies composition, community structure, reef fish.
Co-Authors Abdus Sabil Aditano Y Retrawimbi Azhar Muttaqin E Estradivari Efin Muttaqin Estradivari Estradivari H Hotmariyah Hedra Akhrari Idris Idris Jessica Pinkan K Khaifin M Muhidin M Muhidin Muttaqin Azhar Nara Wisesa S.A. Tarigan Sanca Sadewa Sukmaraharja A Tarigan Tries B. Razak Tutus Wijanarko