Edi Rudi
Jurusan Biologi, FMIPA, Universitas Syiah Kuala, Banda Aceh 23111

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Tutupan Karang Keras dan Distribusi Karang Indikator di Perairan Aceh bagian Utara Rudi, Edi
Biospecies Vol 3, No 2 (2010)
Publisher : Biospecies

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Abstract

Coral reefs are widely recognized as the center of coastal biological activity, coastal protection and geological processes, and also the productive site for fisheries and tourism. By definition, ecological resilience is the ability of a system to undergo, absorb and respond to change and disturbance, while maintaining its functions and controls. The environmental conditions that favor such community resilience may be different from those that favor resistance. From six field components of reef resilience, benthic cover and coral indicators population structure are the most important for reef resilience. This research has been done at 20 sites in northern Aceh reef, i.e. Weh Island (Sabang) and Aceh Besar regency. Benthic coverage data were collected by employing line intercept transects methods, whereas data of indicator coral population structure were collected by employing belt transect. The results show that hard coral ercentage were range from 20.46% - 67.4%. Generally, hard coral cover in areas protected by the Sabang Weh Island management authority was higher than those occurred in open access areas. The resistant corals category includes Porites (massive) and Pavona which are abundant in western Weh Island, while larger coral colonies of resistant category such as Acropora dan Pocillopora, are abundant in eastern Weh Island. If sea surface temperature is increase, west and north parts of the Weh Island will be the most vulnerable areas for coral mass bleaching.
Pattern of Macro benthos Succession in Sabang Waters after Tsunami Rudi, Edi; Fadli, Nur
Biospecies Vol 2, No 1: Biospecies
Publisher : Biospecies

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Abstract

Research about succession of macro benthos on limestone substrate was conducted atthree sites (Klah Island, Gapang Beach and Gapang Mangrove) in the coral reef ecosystem of WehIsland from April – December 2005. The selections of the sites are based on degradation of watersquality and coral reef condition. Limestone substrate as collectors were laid at 5 m waters depth ateach site, and further were taken after four and eight months. Succession pattern of macro benthoswas analyzed by Frontier Succession curve. The result shows that pattern of macro benthossuccessions were occurred significantly between locations and time. At site poor of natural coral reefcondition (Gapang Mangrove), succession pattern is in disturbance condition, while in Gapang Beachand Klah Island and Pulau Payung, which have good and fair coral condition, succession patterns aregoing in the direction of equilibrium condition. The result has indicated that waters quality is key factorfor macro benthos succession
Pemutihan Karang di Perairan Laut Natuna Bagian Selatan tahun 2010 Rudi, Edi
Biospecies Vol 5, No 1: Biospecies
Publisher : Biospecies

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Abstract

Mass coral bleaching is caused by high sea surface temperatures (SST). SST in theNatuna Sea have risen rapidly since late April 2010 and caused mass coral bleaching. This research wascarried out on 14 sites in Tambelan and Serasan Islands, southern Natuna Sea on November 2010. Dataof colony number and coral genera of the bleaching coral were collected using 10 x 2 m2 belt transect atreef slope, 4 – 6 meter depth below sea level. Each transect was replicated three times on each site.The research found 13 genera of bleaching coral. The bleaching coral number ranged from one to sevencolonies/transect. Acropora and Porites suffered the highest bleaching number and occurred on all sites.The highest degree of bleaching coral was occurred on the Manggirang Besar in Tambelan Islands.Over the course of data collection, bleaching in the Southern Natuna Sea was low and did not indicatethe presence of mass coral bleaching. However, the results confirm that a large number of dead coralwith algae (DCA) indicating that many corals might have been bleached approximately since July 2010.We urge the need to perform local and global actions such as promoting marine protected areas toconserve reef ecosystem especially in the southern Natuna.
Pengaruh Perbedaan Jenis Pakan dan Ransum Harian Terhadap Pertumbuhan dan Kelangsungan Hidup Kepiting Bakau (Scylla serrata) Z.A., Muchlisin; Rudi, Edi; Muhammad, Muhammad; Setiawan, Ichsan
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 11, No 4 (2006): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

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Abstract

Penelitian tentang perbedaan jenis pakan dan jumlah ransum harian kepiting bakau (Scylla serrata) telah dilakukan yang bertujuan untuk mencari pakan alternative dan jumlah pakan harian yang sesuai untuk budidaya kepiting bakau. Metode yang digunakan adalah eksperimen lapangan dengan dua factor perlakuan yaitu perbedaan jenis pakan (ikan rucah, usus ayam dan keong mas) dan jumlah ransom harian (10%, 15%, 20%). Kepiting dipelihara dalam keramba jaring (1m x 1m x 1m) dengan padat tebar 9 ekor/karamba dan dipelihara selama enam minggu. Hasil penelitian menunjukkan bahwa perbedaan jenis pakan dan jumlah ransom harian tidak mempengaruhi secara nyata pertumbuhan dan kelangsungan hidup kepiting bakau.Namun demikian, ikan rucah sebayak 20% memberikan hasil pertumbuhan yang lebih tinggi dibandingkan jenis pakan lainnya. Sementara itu, angka kelangsungan hidup yang tinggi diperoleh pada pemberian keong mas 10% dan 15%.Dengan demikian dapat disimpulkan bahwa pemberian keong mas and usus ayam dapat digunakan sebagai pakan alternative dalam budidaya kepiting bakau, namun demikian pemakaian ikan rucah sebagai pakanmemiliki peran penting dalam budidaya kepiting.Kata kunci : Kepiting bakau (Scylla serrata), keong mas (Pomacea canaliculata), ikan rucah dan usus ayamThe study of feed differences and feeding ration of mud crab (Scylla serrata) on the growth, and survival rate was done. The objective of the present study is to find alternative feeds and daily rations for mud crabculture. Field experimental was used in this study and two factors were evaluated namely type of feed (trash fish, chicken intestine and golden snail) and daily ration of 10%, 15% and 20%. The crabs were reared in poly ethylene cages with stocking density of 9 crabs /cage for six weeks. The result shows that the differences of feed types and daily rations were no significant affected on growth performance and survival rate of mudcrab. However, feed of trash fish 20% have resulted in a higher growth performance than other feeds and higher survival rates were found at feed of golden snail 10% and 15%. Therefore, it is concluded that goldensnail and chicken intestine are possible to be used as alternative feeds for mud crab culture. However trash fish is still play a vital role in crab culture.Key words: Mud crab (Scylla serrata), golden snail (Pomacea canaliculata), trash fish and chicken intestine.
Kondisi Terumbu Karang di Perairan Sabang Nanggroe Aceh Darussalam setelah Tsunami Rudi, Edi
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 10, No 1 (2005): Jurnal Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

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Abstract

Terumbu karang merupakan ekosistem yang kompleks dengan karagaman biologi tinggi yang mendukung hasil perikanan dan melindungi pantai dari aksi gelombang. Pasca bencana tsunami pada 26 Desember 2004 silam, belum banyak informasi kuantitatif mengenai kondisi terumbu karang di sekitar perairan Pulau Weh Sabang Nanggroe Aceh Darussalam. Penelitian mengenai kondisi terumbu karang ini dilakukan di enam stasiun pengamatan yang tersebar di bagian barat, tengah dan timur Pulau Weh dengan menggunakan Metode Transek Garis (LIT, Line Intercept Transect) berdasarkan bentuk pertumbuhan (life form) karang dankomponen benthik lainnya. Hasil penelitian memperlihatkan kondisi terumbu karang di perairan Pulau Weh masih baik, seperti di stasiun Benteng, Lhong Angen dan Gapang, namun di beberapa tempat telah memperlihatkan kerusakan mengkhawatirkan yang diperkirakan bukan akibat bencana tsunami, namun karena adanya usaha pemanfaatan sumberdaya alam tidak ramah lingkungan. Tidak ditemukan kerusakan yang serius akibat bencana tsunami terhadap ekosistem terumbu karang diperairan Pulau Weh diperkirakan berhubungan dengan tipe pantai yang pada umumnya berbatu, terjal dan sangat kokoh serta didukung oleh kondisi terumbu karang yang baik sehingga mampu menahan dan meredam aksi gelombang melalui sistem spur and groove.Kata kunci : terumbu karang, Sabang, LIT, tsunamiCoral reefs are complex ecosystems with high biological diversity that support productive fisheries and protect the beach from wave action. After tsunami disaster on last 26 December 2004, there is noquantitative information yet on condition of coral reef ecosystem around Sabang waters, Weh Island,Aceh, Indonesia. This research has been done in sixt station of Weh Island on early April 2005. LineIntercept Transects (LIT) are used to assest the sessile benthic community of coral reef. The community is characterized using lifeform categories which provide a morphological description of the reef community. The result shows that coral reef condition in Sabang Waters, Weh Island, generally is good, especially in Benteng, Lhong Angen and Gapang stations. However, in some sites coral reef condition are bad. There is no serious impact because of tsunami disaster on coral reef condition in Sabang Waters. The bad coral reef condition in some sites may be because of illegal fishing. Rocky shore and good coral reef condition are main factors which protect the beach ecosystem from wave action. Spur and groove system of the coral reef structure acts primarily as a dissipator of the continual wave energy operating on the coastal shoreline, and by dissipating wave energy before it reaches the shore, the beach area is protected from extensive wave action of tsunami.Key words: coral reef, Sabang, LIT, tsunami
Komposisi ikan karang di lokasi transplantasi karang di Pulau Rubiah, Kota Sabang, Aceh Fadli, Nur; N, Aidia; M, Muhammad; Rudi, Edi
DEPIK Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Vol 1, No 3 (2012): December 2012
Publisher : Faculty of Marine and Fisheries, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (396.302 KB) | DOI: 10.13170/depik.1.3.122

Abstract

Abstract-. Coral transplantation is one of the techniques to rehabilitate the damaged coral reefs. The objective of this study is to observe the composition of reef fishes in the coral transplantation location in Rubiah Island, Sabang. The study was conducted in February 2011. Some of reef fishes Family were found in coral transplantation location (16 Family at 3 meters and 14 Family at 10 meters). The Family of Acanthuridae, Chaetodontidae, Pomacentridae Scaridae and Labridae were found in 3 meters. Reef fish families that dominated at depths of 10 meters were the Family of Acanthuridae, Pomacentridae Scaridae and Chaetodontidae. There are 40 reef fish species found in this study (34 species in 3 m and 38 species in 10m). Some reef fishes that were found in the transplantation area suggested that coral reefs rehabilitated using the technique of transplantation can improve its function as habitat for reef fish.Keywords: Transplantation, coral reefs, Rubiah Island
Komunitas ikan karang herbivora di perairan Aceh bagian utara Rudi, Edi; Fadli, Nur
DEPIK Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Vol 1, No 1 (2012): April 2012
Publisher : Faculty of Marine and Fisheries, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (754.325 KB) | DOI: 10.13170/depik.1.1.25

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Abstract. Herbivory reef fish is the most important of fish tropic group in the coral reef ecosystem.Hence, the objective of this study was to provide reliable data and information on herbivory reef fish based on management types in the northern Acehnese reef. Underwater Visual Census Techniques was used to collect the data at 20 sites around Weh Island and Aceh Besar. This study found 32 herbivory reef fishes species from five families in northern Acehnese reef. Densities of herbivory reef fish were varied from 27 to 104 ind./transect,while species numbers were also varied from 6 to 14 species/site. Family Acanthuriidae was the highest in species number, i.e. 19 species. Densities of herbivory reef fish in sites that were protected under the management authority of Sabang Weh Island were not significantly higher compare with sites from open access areas. Keywords: herbivory reef fish, coral reef, visual census technique, Aceh
PENGARUH KONSENTRASI KITOSAN DAN LAMA PENYIMPANAN TERHADAP TOTAL PLATE COUNT (TPC) BAKTERI PADA IKAN KEMBUNG (Rastrelliger sp.) ASIN Yulisma, Ardhana; Yulvizar, Cut; Rudi, Edi
Jurnal Biologi Edukasi Vol 4, No 2 (2012): Jurnal Biologi Edukasi
Publisher : Jurnal Biologi Edukasi

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Abstract

This research studied the application of chitosan on salted mackerel (Rastrelliger sp.) preservation during storage at room temperature. The research is aimed to study the effect chitosan concentration and storage time for Total Plate Count (TPC). The study was conducted in Laboratory of Microbiology, Faculty of Mathematics and Natural Sciences, Syiah Kuala University from April to August 2012. The research method was laboratory experimental.  The data was analyzed by Randomized Completely Design with two factorial. The first factor was chitosan concentration (three levels: 0%; 1%; 2%) while the second factor was storage time (four levels: 0; 2; 4; 8 weeks). The results of this study indicated that chitosan concentration was not significantly different for the Total Plate Count (p>0,05), however storage time was significantly for the Total Plate Count (p<0,05). Futhermore, the interaction chitosan concentration and storage time was significantly for the Total Plate Count (p<0,05).
Penilaian Sumberdaya Terumbu Karang dan Persepsi Masyarakat Tentang Daerah Perlindungan Laut di Ujong Pancu, Aceh Besar Rudi, Edi
Biospecies Vol 6, No 02 (2013)
Publisher : Biospecies

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Abstract

Penelitian ini dilakukan dengan maksud menyediakan data dan informasi yang memadai tentang potensi sumberdaya terumbu karang dan persepsi masyarakat tentang daerah perlindungan laut. Penilaian potensi sumberdaya terumbu karang meliputi kondisi tutupan karang keras serta keragaman dan kelimpahan ikan karang.  Data diambil di tiga stasiun bertempat di ekosistem terumbu karang di wilayah Ujong Pancu, Kecamatan Peukan Bada, Kabupaten Aceh Besar, Propinsi Aceh.  Metode Point Intercept Transect digunakan untuk menilai tutupan karang, sedangkan Teknik Underwater Visual Census digunakan untuk mengetahui keragaman dan kelimpahan ikan karang.  Di bagian lain, persepsi masyarakat tentang daerah perlindungan laut diperoleh dengan Metode Kuesioner. Hasil pengamatan menunjukkan bahwa kondisi terumbu karang di Ujong Pancu dalam keadaan baik, dengan tutupan karang keras lebih dari 50%. Dalam tiga tahun terakhir tidak terjadi perubahan besar dalam persentase tutupan karang.  Komunitas karangnya didominasi oleh genus Acropora, Pocillopora dan Porites.  Dalam penelitian ini ditemukan 158 spesies ikan karang dari 40 famili dengan kepadatan berkisar 162 – 180 individu/transek (100m2).  Hasil survai tingkat pemahaman dan persepsi tentang daerah perlidungan laut menunjukkan adanya keinginan yang tinggi dari responden untuk melestarikan lingkungan melalui pembentukan daerah perlindungan laut, walaupun mereka memiliki pengetahuan yang terbatas tentang sumberdaya pesisir dan laut. Dari kajian yang telah dilakukan ini diharapkan adanya upaya lebih lanjut dari Pemerintah Daerah Kabupaten Aceh Besar untuk membentuk daerah perlindungan laut di wilayah Ujong Pancu.
Kondisi terumbu karang dan makro invertebrata di Perairan Ujong Pancu, Kecamatan Peukan Bada, Aceh Besar Bahri, Samsul; Rudi, Edi; Dewiyanti, Irma
DEPIK Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Vol 4, No 1 (2015): APRIL 2015
Publisher : Faculty of Marine and Fisheries, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (659.729 KB) | DOI: 10.13170/depik.1.1.2278

Abstract

Abstract. The aimof this study was to evaluate the condition of coral reefs and macro invertebrates at Ujong Pancu, Aceh Besar District The study was carried out from April to May 152012. Coral coverage was observed by using Point Intercept Trancect method and Visual census technique for macro invertebrates. There was 50% of hard coral coverage recorded in three observation locations. The predominant genus was Acropora with a percentage of  more than 50% at all locations. The abundance of macro invertebrateswas ranged from 3.75 to 7.75 ind/transect. The most abundant macro invertebrates was Diadema setosum with percentage of more than 40% at each location. The diversity index (H’) of coral reefs and macro invertebrates were ranged from 0.74 - 1.36 and 0.98 – 1.5, respectively. In general, the condition of coral reefs and macro invertebrates in Ujong Pancu was in good condition. Keywords: Coral reefs; Macro invertebrates; Ujong Pancu. Abstrak. Penelitian ini bertujuan untuk mengetahui kondisi terumbu karang dan makro invertebrata di Ujong Pancu. Penelitian ini dilakukan pada bulan April hingga Mei 2012. Tutupan karang diamati dengan menggunakan Metode Point Intercept Transect (PIT) dan makro invertebrata diamati dengan menggunakan metode TeknikVisual Sensus. Hasil penelitian ditemukan bahwa lebih dari 50% tutupan karang keras pada ketiga stasiun pengamatan. Genus yang paling mendominasi pada ketiga stasiun adalah Acropora dengan persentase lebih dari 20% pada setiap stasiun pengamatan. Kelimpahan makro avertebrata berkisar antara 3,75 hingga 7,75 ind/transek. Kelimpahan makro invertebrata terbesar adalah Diadema setosum dengan persentase lebih dari 40% pada setiap stasiun pengamatan. Indeks keanekaragaman (H’) karang dan makro investebrata berkisar antara  0,74 - 1.36 dan 0,98 – 1,5 secara berurutan. Secara umum berdasarkan indeks yang digunakan, kondisi terumbu karang dan makro invertebrata di Ujong Pancu tergolong baik.Kata kunci : Terumbu Karang; Makro avertebrata; Ujong Pancu.