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JURNAL PESISIR DAN LAUT TROPIS
Published by Universitas Sam Ratulangi
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Core Subject : Science,
Earth & Planetary Sciences
Jurnal Pesisir dan Laut Tropis mewadahi kajian-kajian ilmiah dalam bidang bio-ekologi pesisir dan laut, hidro-oesanografi dan morfologi pesisir, toksikologi dan farmasitika, kajian substansi kimiawi biota dan perkembangan bioteknologi kelautan lainnya, di lingkup pesisir dan laut di daerah tropis. Kajian ilmiah dimaksud bisa berupa hasil penelitian maupun critical review. Jurnal ini terbit 3 (tiga) kali dalam satu tahun (Februari, Juni, September). Diterbitkan oleh Program Studi Ilmu Kelautan FPIK-UNSRAT
Arjuna Subject : -
Articles 324 Documents
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STRUKTUR KOMUNITAS MANGROVE DI DESA BONE BARU, KECAMATAN BANGGAI UTARA, KABUPATEN BANGGAI LAUT, SULAWESI TENGAH Prengky P Babo; Calvyn F A Sondak; James J H Paulus; Joshian NW Schaduw; Ping Astony Angmalisang; Adnan S Wantasen
JURNAL PESISIR DAN LAUT TROPIS Vol. 8 No. 2 (2020): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.8.2.2020.29951

Abstract

Mangrove is one of plants that can grow well on the coast which are affected by tides.Bone Baru village is located in North Banggai District, Banggai Laut Regency, Central Sulawesi Province which has area that about 840 ha and has mangrove area reaching 16.56 ha. This research was conducted from February to April 2020. The purpose of this research are to identify the types of mangroves and analyzing the structure of the mangrove community which include density, relative density, frequency, relative frequency, coverarge, relative coverage, importance value index, and diversity index. The data were analyzed using Microsoft Excel. Based on the results this study obtained 4 types of mangroves consisting of Bruguiera gymnorrhiza, B. cylindrica, Rhizophora mucronata, and Lumnitzera littorea. The highest relative density was 0.13 ind / m2 and the relative density was 91.83% the highest frequency type and the frequency relative value were 5 ind / m2 and 52.63%respectively. The highest mangrove cover was 3.79 m2 with relative cover of 52.21%. The highest important value index was 227.72% . The highest diversity index was found at station 2 with an average value (H ') of 0.69.Keywords: mangrove, community structure, habitat, BanggaiABSTRAKMangrove merupakan kelompok tumbuhan yang dapat tumbuh dengan baik di pesisir pantai yang dipengaruhi oleh pasang surut air laut. Penelitian ini dilakukan di desa Bone Baru, Kecamatan Banggai Utara, Kabupaten Banggai Laut, Provinsi Sulawesi Tengah yang memiliki luas wilayah mencapai 840 ha dan memiliki luas area mangrove mencapai 16,56 ha. Penelitian ini dilakukan dari bulan Februari-April 2020 dengan menggunakan metode Line Transect. Tujuan dari penelitian ini adalah mengidentifikasi jenis-jenis mangrove dan menganalisa struktur komunitas mangrove Data yang diambil meliputi kerapatan jenis, kerapatan relatif jenis, frekuensi jenis, frekuensi relatif jenis, penutupan jenis, penutupan relatif jenis, indeks nilai penting, dan indeks keanekaragaman yang kemudian di analisa dengan bantuan program komputer Microsoft Excel. Berdasarkan hasil penelitian ditemukan 4 jenis mangrove yaitu Bruguiera gymnorrhiza, Rhizophora mucronata, Lumnitzera littorea dan Bruguiera cylindrica. Kerapatan jenis tertinggi 0,13 ind/m2 dan kerapatan relatifnya 91,83%. Frekuensi jenis tertinggi dengan nilai 5 ind/m2 relatifnya 52,63%, penutupan jenis tertinggi dengan nilai 3,79 m2 dan relatfnya 52,21%, indeks nilai penting tertinggi dengan nilai 227,72% dan Nilai indeks keanekaragaman tertinggi ditemukan pada stasiun 2 dengan nilai ratarata (H’) 0,69.Kata kunci: mangrove, strukture komunitas, habitat, Banggai
UJI AKTIVITAS ANTIBAKTERI DAN ANTI-UV Phyllidiella nigra DAN BAKTERI SIMBIOTIKNYA DARI PERAIRAN TANJUNG MANDOLANG Tessalonica Dajoh; Robert A Bara; Esther Angkouw; Medy Ompi; Rosita A Lintang; Cykca Lumenta
JURNAL PESISIR DAN LAUT TROPIS Vol. 8 No. 2 (2020): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.8.2.2020.29768

Abstract

Phyllidiella nigra is an organism that is suspected to have secondary metabolites because their ability to develop its self defense system by camouflage and using chemical compounds derived from their nature diet as deterrent against their predators. The purpose of this study was to isolate symbiotic bacterial derived from P. nigra, extracted and followed by, the antibacterial assays against Escherichia coli and Bacillus megaterium as well as the anti-UV assay. The results showed that the five isolates tested had an antibacterial activity with the highest average inhibition zone against E. coli DSM 498 bacteria, isolate 1 (14.67 mm), isolate 5 (14 mm), and against B. Megaterium DSM 32T bacteria, isolate 3 (13.33 mm). The three isolates which had the highest inhibition zone and P. nigra extract were tested for anti-UV assay using a UV-Vis Spectrophotometer. The results obtained isolate 3 has absorption of UV-A with the UV absorbtion maximum at λ 340 nm and P. nigra extract has absorption on UV-B radiation with UV absorption maximum at λ 290 nm. Key words: Nudibranchia, Bacteria, Anti-bacteial, Anti-UV Phyllidiella nigra merupakan organisme yang diduga memiliki metabolit sekunder karena mampu mengembangkan sistem pertahanan dirinya dengan cara kamuflase dan menggunakan senyawa kimia sebagai racun yang didapat dari makanannya. Tujuan dari penelitian ini yaitu mendapatkan isolat bakteri yang bersimbiosis dengan P. nigra, mendapatkan ekstrak dari baktri simbion, dan menguji antibakteri dan anti-UV ekstrak etil aseta bakteri simbion dengan metode difusi agar terhadap bakteri Escherichia coli dan Bacillus megaterium. Hasil penelitian didapatkan kelima isolat yang diuji memiliki aktivitas antibakteri dengan rerata zona hambat tertinggi terhadap bakteri E. coli DSM 498 yaitu isolat 1 (14,67 mm), isolat 5 (14 mm), dan terhadap baktri B. megaterium DSM 32T yaitu isolat 3 (13,33 mm). Ketiga isolat yang memiliki zona hambat tertinggi dan ekstrak P. nigra diujikan anti-UV menggunakan alat UV-Vis Spektrofotometer. Hasil yang didapat isolat 3 memiliki serapan terhadap radiasi sinar UV-A dengan puncak tertinggi pada λ 340 nm dan ekstrak P. nigra memiliki serapan terhadap radiasi sinar UV-B dengan puncak tertinggi berada pada λ 290 nm. Kata kunci: Nudibranchia, Bacteria, Anti-bacteial, Anti-UV
ANALISIS STRUKTUR KOMUNITAS MANGROVE DI KAWASAN SEKITAR PT. CONCH KABUPATEN BOLAANG MONGONDOW George L Pandeirot; Antonius P Rumengan; Carolus P Paruntu; Surya Darwisito; Medy Ompi; Adnan S Wantasen
JURNAL PESISIR DAN LAUT TROPIS Vol. 8 No. 2 (2020): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.8.2.2020.30000

Abstract

This research was conducted for four months of April-July 2020. The purpose of this study was to determine species density, species relative density, species frequency, species relative frequency, species cover, species relative cover, index of the importance of mangrove species in the area around PT. Conch Lolak District, Bolaang Mongondow Regency, North Sulawesi Province. This research was conducted for four months of April-July 2020. The method used was a quadratic plot of 6 stations. Data collection at each station was made with a plot size of 10 × 10 m2 to measure the diameter of a tree at breast height (DBH), which has a minimum trunk circumference of 16 cm. The results showed that there were five types of mangroves, namely R. apiculata, R. mucronata, B. gymnorhiza, S. alba, and X. granatum. The highest relative density of species at station 2, namely R. mucronate 62.96%, while the lowest value at station 3, namely R. mucronata 8.77%, the highest relative frequency value at station 4, namely R. mucronata 33.33%, whereas the lowest value was at station 5, namely B. gymnorhiza 25.00%, the highest relative closure value was at station 5, namely R. mucronata 30.91%, while the lowest was at station 2, namely R. apiculata 12.88%, and the important value index the highest was at station 3, namely R. apiculata 138.09% and the lowest value was at station 5, namely X. granatum 35.05%.Kata Kunci: Mangrove, Structure in areas around PT. Conch. Conch, Rhizopora Abstrak Penelitian ini dilakukan selama 4 bulan April-Juli 2020. Tujuan penelitian ini adalah untuk mengetahui kerapatan jenis, kerapatan relatif jenis, frekuensi jenis, frekuensi relatif jenis, penutupan jenis, penutupan relatif jenis, indeks nilai penting jenis mangrove yang ada di kawasan sekitar PT. Conch Kecamatan Lolak, Kabupaten Bolaang Mongondow, Provinsi Sulawawesi Utara. Penelitian ini dilakukan selama 4 bulan April-Juli 2020. Metode yang dipakai adalah plot kuadrat sebanyak 6 stasiun. Pengambilan data pada setiap stasiun dibuat plot dengan ukuran 10 × 10 m2 untuk mengukur diameter pohon setinggi dada (DBH) yang memiliki lingkar batang minimal 16 cm. Hasil penelitian menunjukkan bahwa ada 5 jenis mangrove yaitu R. apiculata, R. mucronata, B. gymnorhiza, S. alba dan X. granatum. Kerapatan relatif jenis tertinggi pada stasiun 2, yaitu R. mucronata 62,96%, sedangkan nilai terendah pada stasiun 3, yaitu R. mucronata 8,77%, nilai Frekuensi relatif jenis tertingi pada stasiun 4, yaitu R. mucronata 33.33%, sedangkan nilai terendah pada stasiun 5, yaitu B. gymnorhiza 25.00%, nilai Penutupan relatif jenis tertinggi pada stasiun 5, yaitu R. mucronata 30,91%, sedangkan terendah pada stasiun 2, yaitu R. apiculata 12,88%, dan Indeks nilai penting tertinggi pada stasiun 3, yaitu R. apiculata 138,09% dan nilai terendah pada stasiun 5, yaitu X. granatum 35,05%.Kata Kunci: Mangrove, kawasan sekitar PT. Conch, Rhizopora  
FILOGENI MOLEKULER ISOLAT BAKTERI F0-0-3-1 DARI MEDIA PEMELIHARAAN ROTIFER Oktavianus Dalenoh; Stenly Wullur; Elvy L Ginting; Veibe Warouw; Detty N Rumampuk; Henneke Pangkey
JURNAL PESISIR DAN LAUT TROPIS Vol. 8 No. 2 (2020): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.8.2.2020.29909

Abstract

The aim of this study was to construct molecular phylogeny of bacteria suspected to involve in decomposing the fishery waste as diet for rotifer culture. The bacteria were isolated from culture of rotifer and propagated for molecular analysis. Genomic DNA of the bacteria was extracted using DNeasy Blood and Tissue Kit (Qiagen). The 16S rRNA gene was amplified using primer pairs i.e. 8F (AGAGTTTGATCCTGGCTCAG) and 1492R (GGTTACCCT GTTACGACTT) and sequenced. The sequences were analyzed using Sequence Scanner and MEGA 7, and BLASTed on the NCBI website (www.ncbi.nml.nih.gov). Molecular phylogeny of the isolate was constructed using Neighbor Joining Tree method. Isolate bacteria F0-0-3-1 from culture of rotifer fed with fish waste diet was successfully propagated for molecular analysis. 16S rRNA gene of the isolate bacteria was successfully amplified and showed a DNA band at 1400 bp. Nucleotides sequence quality of the 16S rRNA gene i.,e QV+20 and CRL were 995 and 941 nucletides. BLAST result of the 16S rRNA gene showed 98.87% percent identity of the isolate bacteria F0- 0-3-1 with bacterial species in the genus Bacillus i.e. Bacillus weidmanni, Bacillus cereus dan Bacillus proteolyticus. Molecular phylogeny analysis showed that the three species was in the same clade.Keywords: Phylogeny, molecular, bacteria, rotifer, 16S rRNA gene Penelitian ini bertujuan untuk mengkonstruksi filogeni molekuler bakteri yang diduga terlibat dalam proses penguraian limbah perikanan sebagai pakan untuk kultur rotifer. Isolat bakteri yang diperoleh dari kultur rotifer tersebut, dibiakkan dan DNA genomnya diekstrak menggunakan DNeasy Blood and Tissue Kit (Qiagen). Gen 16S rRNA isolat bakteri tersebut, diamplifikasi menggunakan primer 8F (AGAGTTTGATCCTGGCTCAG) dan 1492R (GGTTACCCT GTTACGACTT) selanjutnya, disekuens dan urutan nukleotida hasil sekuens dianalisis menggunakan program Sequence Scanner dan MEGA 7. Analisis homologi sekuens dilakukan dengan program BLAST nucleotide blast, pada situs NCBI (www.ncbi.nml.nih.gov) dan dilanjutkan dengan konstruksi filogeni molekuler menggunakan metode Neigbor Joining Tree. Isolat bakteri F0-0-3-1 berhasil disolasi dari kultur rotifer yang diberi pakan limbah ikan. Hasil amplifikasi Gen 16S rRNA isolat bakteri F0-0-3-1 terdeteksi dalam bentuk pita DNA pada posisi sekitar 1400 bp. Kualitas nukleotida gen 16S rRNA hasil sekuens menunjukan nilai QV 995 dan CRL 941. Hasil BLAST sekuens gen 16S rRNA isolat bakteri F0-0-3-1 pada database menunjukkan kemiripan 98% dengan spesies Bacillus wiedmanni. Hasil kontruksi filogeni menggunakan metode Neighbor Joining Tree menunjukan posisi isolat bakteri F0-0-3-1 berada pada clade yang sama dengan Bacillus weidmanni, Bacillus cereus dan Bacillus proteolyticus. Kata kunci: Filogeni, molekuler, bakteri, rotifer, Gen 16S rRNA
Ekstraksi Pigmen Klorofil Total Pada Mikroalga Dunaliella sp. Yang Telah diberi Perlakuan Timbal Asetat Oscar M Lamohamad; Kurniati Kemer; Desy M H Mantiri; Ester Angkow; James Paulus; Adnan S Wantasen
JURNAL PESISIR DAN LAUT TROPIS Vol. 9 No. 1 (2021): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.9.1.2021.33074

Abstract

Heavy metals such as lead are compounds that can cause toxic effects if they enter the body of living things. Dunaliella sp. is one of the marine organisms that is susceptible to changes or ecological pressure so that it is the main target of being exposed to pollutants such as heavy metals and so on, so it is necessary to conduct research to determine how the effect of lead acetate compounds on the growth and total chlorophyll content of Dunaliella micro algae. sp. The results of this study indicate that the growth of Dunaliella sp microalgae on the control culture media and the lead treatment media has a very different growth, the control media has normal growth, while the total chlorophyll content of the 14th day in the control media is 80.49 µg / ml. 30 ppm 54.79 µg / ml, 50 ppm 50.02 µg / ml and 100 ppm 9.13 µg / ml. While the total chlorophyll content of the 30th day in the control media was 34.99 µg / ml, 30 ppm 44.657 µg / ml, 50 ppm 26.136 µg / ml and 100 ppm 5.58 µg / ml.Keywords : Microalga, Dunaliella sp, kcorophyll, lead ecetate    
KONDISI TERUMBU KARANG PADA KAWASAN WISATA PANTAI MALALAYANG KOTA MANADO PROVINSI SULAWESI UTARA DENGAN MENGGUNAKAN METODE UNDERWATER PHOTO TRANSECT Devidson Daud; Joshian N. W. Schaduw; Chatrien Luzianna Sinjal; Janny D Kusen; Erli Y Kaligis; Adnan S Wantasen
JURNAL PESISIR DAN LAUT TROPIS Vol. 9 No. 1 (2021): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.9.1.2021.33575

Abstract

Coral reefs are coastal ecosystems with the highest level of diversity with around one million species worldwide. Corals are invertebrates belonging to the Phylum Coelenterate (hollow animals) or Cnidaria. The Underwater Photo Transect (UPT) method is a method that utilizes technological developments, both digital camera technology and computer software technology. Capturing data in the field in the form of underwater photos carried out by shooting using a Canon G-16 camera equipped with a waterproof protector (housing). In this study it can be seen that the percentage of hard corals at point 1 is in the medium category, point 2 is in the medium category, and point 3 is in the bad category with the percentage of hard coral cover as follows: point 1 (one) 29.75%, point 2 (two) 31.16%, and point 3 (three) 24.26%, of the three points can represent the overall condition of the coral reefs in Malalayang Beach which is in moderate condition with a percentage of 28.39%.Keywords: Malalayang Beach, Coral Reef, UPT, CPCe
PEMETAAN BATIMETRI PANTAI MALALAYANG DUA, KOTA MANADO Abdulrahman Lahay; Rignolda Rignolda Djamaluddin; Hermanto W K Manengkey; Brama Djabar
JURNAL PESISIR DAN LAUT TROPIS Vol. 8 No. 3 (2020): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.8.3.2020.30445

Abstract

As with other coastal areas, Malalayang Dua Coast has been used for various activities and is predicted to continue to grow along with the development of Manado City. To support efforts to manage and utilize coastal space in an effective and sustainable manner, data and information are needed related to oceanographic factors, one of which is the bathymetry condition of the coastal waters. This research was carried out with the aim of describing the bathymetric conditions and analyzing the slope of the bottom of the waters. The depth measurement by acoustic method was carried out along 15 survey lines and 750 fixed measurement points, and the bathymetry map was drawn with reference to Mean Seawater Level (MSL). The results obtained indicate that the bathymetry of Malalayang Dua Coast in the west has shallow waters that are wider than the eastern one. Meanwhile, parts of the waters deeper up to a depth of 50 m appear to be steeper in the West than on the East side. In the middle part of the observed waters, there is a part that is relatively deep and protrudes towards the land with a steeper side towards the east. The slope of the bottom of the water in the west (Profile 1) is indicated by flat slopes (2.6%) to a depth of 7 m, and slopes (13%) at a depth of 7 m to 50 m. In the middle section (Profile 2) the slope is categorized as gentle (3%) to a depth of 4 m, and inclined slopes (10%) at a depth of 4 m to 50 m. In the eastern part (Profile 3) the slopes are categorized as sloping slopes (10.28) to a depth of 35 m, and gentle slopes (3.42%) at a depth of 35 m to 50 m. Keywords: bathymetry, acoustics, slope, Malalayang Dua CoastAbstrakSebagaimana wilayah pantai pada umumnya, Pantai Malalayang Dua telah dimanfaatkan untuk berbagai aktivitas dan diprediksi akan terus berkembang seiring perkembangan Kota Manado. Untuk menunjang upaya pengelolaan dan pemanfaatan ruang pantai secara efektif dan berkelanjutan, diperlukan data dan informasi terkait faktor oseanografi dimana salah satu yang penting yaitu kondisi batimetri perairan pantai tersebut. Penelitian ini dilaksanakan dengan tujuan untuk menggambarkan kondisi batimetri dan menganalisis kemiringan lereng dasar perairan. Pengukuran kedalaman dengan metode akustik dilakukan sepanjang 15 lajur perum dan 750 titik fix perum, dan peta batimetri digambarkan dengan referensi Muka Laut Rata-rata (Mean Seawater Level - MSL). Hasil yang diperoleh menunjukkan bahwa batimetri Pantai Malalayang Dua sebelah Barat memiliki perairan dangkal yang lebih lebar dibandingkan sebelah Timur. Sementara itu, untuk bagian perairan yang lebih dalam hingga kedalaman 50 m nampak lebih terjal di bagian Barat dibandingkan sisi sebelah Timur. Pada bagian tengah perairan yang diamati, terdapat bagian yang relatif dalam dan menjorok ke arah darat dengan sisi yang lebih terjal ke arah sebelah Timur. Kemiringan lereng dasar perairan di sebelah Barat (Profil 1) terindikasi lereng datar (2,6%) hingga kedalaman 7 m, dan lereng miring (13%) pada kedalaman 7 m hingga 50 m. Pada bagian tengah (Profil 2) kemiringan lereng terkategori landai (3%) hingga kedalaman 4 m, dan lereng miring (10%) pada kedalaman 4 m hingga 50 m. Pada bagian Timur (Profil 3) kemiringan lereng terkategori lereng miring (10,28) hingga kedalaman 35 m, dan lereng landai (3,42%) pada kedalaman 35 m hingga 50 m. Kata kunci: batimetri, akustik, kemiringan lereng, Pantai Malalayang Dua
KEANEKARAGAMAN DAN KEPADATAN ECHINOIDEA DAN ASTEROIDEA DI RATAAN TERUMBU KARANG PERAIRAN TONGKAINA DAN BAHOWO KOTA MANADO ( Ailen Imanuel Eman; Erly Yosef Kaligis; Chatrien Annita Luzianna Sinjal; Billy Theodorus Wagey
JURNAL PESISIR DAN LAUT TROPIS Vol. 9 No. 1 (2021): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.9.1.2021.33075

Abstract

The waters of Tongkaina, which are part of northern Manado's waters, are known to have mangrove, seagrass, and seaweed ecosystems. Therefore efforts are needed to manage the population and diversity of echinoderms in these waters. Echinoderms' ecology has an essential role in maintaining the marine ecosystem's balance, which plays a role in recycling nutrients. This study aimed to determine diversity, species density, species relative density, species frequency, species relative frequency, dominance, and the index of importance of Echinoidea and Asteroidea's species in the waters of the Tongkaina Village and their density. The method used in this research is the quadratic line transect method. First of all, the survey was conducted to the sampling site's location in the coral reef flats of Tongkaina Village's waters, including Tongkaina beach and Bahowo beach, before operating the sampling. Then the observation stations were determined, namely Tongkaina waters (near Batu Meja) and Bahowo waters. The quadratic line transect method is used in this research. Species of class Echinoidea and Asteroidea in the quadrat were recorded among the total of individuals, and the species is documented. This study's results indicate that six species were found, including the survey, and five species were found based on the line transect method with 182 individuals. Including Asteroidea 85 Individuals and Echinoidea 99 Individuals. Value of Diversity at station 1 has a value of H '= 1.170 with a dominance of C = 0.364, while at Station 2 has a value of H' = 1.232 and dominance value of C = 0.316. the highest density in Station 1 is Diadema savigny 1.967 ind/m2 relative 50.86%, and Linckia laevigata with the highest frequency Fi = 0.533. The highest important value index is Diadema savigny, with a value of 81.09%, while at station 2, the Protoreaster nodosus has the highest value of important value index with a value of 87.51%. These species also have the highest density of 0.933 ind/m2 and a relative number of 41.79%.Keywords: Tongkaina, Echinoderm, Line Transect Quadrat Method, Asteroidea, Echinoidea, Coral Reef Flat
BIOINDEKS ZOOPLANKTON DI PERAIRAN PULAU BUNAKEN Kezia Keren Erika Tampi; Joice R.T.S.L Rimper; Veibe Warouw
JURNAL PESISIR DAN LAUT TROPIS Vol. 9 No. 1 (2021): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.9.1.2021.33624

Abstract

The city of Manado has several islands which are strategic places with the development of marine potential. One that is so potential is the waters of Bunaken Island and the forms of activity in Bunaken Island waters vary widely. The purpose of this study is to determine the abundance value and biological index and to analyze the condition of the waters in the waters and to see the comparison at each research station. The results of zooplankton identification consisted of 7 genera including all research stations. The results of the analysis of the highest abundance data were at the third station (8.4822 ind / l) and the lowest abundance value was at the first station (7.4220 ind / l). The results of the biological index analysis obtained are as follows: the average diversity value at three stations is 1.08, the uniformity is 0.98 and the dominance is 0.20. The results of the Morisita index for each station are: stations. Which means the value of the distribution pattern is three groups, and the others are uniform in each research genus, the overall distribution is uniform.Keywords:  Zooplankton, Bunaken Island waters, Abundance, Bioindex
KEKAYAAN DAN POTENSI SENYAWA BIOAKTIF MAKROALGA DI PESISIR ATEP OKI, KABUPATEN MINAHASA, SULAWESI UTARA Silsia Dorkas Winowoda; Marina Flora Oktavine Singkoh; Ratna Siahaan
JURNAL PESISIR DAN LAUT TROPIS Vol. 8 No. 3 (2020): JURNAL PESISIR DAN LAUT TROPIS
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jplt.8.3.2020.30454

Abstract

This study aims to analyze the richness and potential of macroalgae bioactive compounds on the Atep Oki Coast, District of Minahasa, North Sulawesi Province. This research was conducted in October 2019 until January 2020. Sampling used the roaming method in a predetermined location that is Atep Oki tidal/ intertidal coast. Sampling locations are spread over six coordinate points. Macroalgae found on the Atep Oki Coast assessed ten species belonging to three phyla, namely Chlorophyta (green algae), Ochrophyta (brown algae) and Rhodophyta (red algae). Chlorophyta members mean six species. Ochrophyta has members of three species and members of Rhodophyta only one species. The types of macroalgae found on the Atep Oki Coast provide bioactive compounds. Keywords : Macroalgae, Bioactive Compounds, Atep Oki Minahasa CoastAbstrak Penelitian ini bertujuan untuk menganalisis kekayaan jenis dan potensi senyawa bioaktif makroalga di Pesisir Atep Oki, Kabupaten Minahasa, Provinsi Sulawesi Utara. Penelitian ini telah dilaksanakan pada bulan Oktober 2019 sampai Januari 2020. Pengambilan sampel menggunakan metode jelajah di lokasi yang telah ditentukan yaitu pesisir pasang surut/intertidal Atep Oki. Lokasi pengambilan sampel tersebar di enam titik-titik koordinat. Makroalga yang ditemukan di Pesisir Atep Oki berjumlah sepuluh species yang tergolong ke dalam tiga filum yaitu Chlorophyta (alga hijau), Ochrophyta (alga cokelat) dan Rhodophyta (alga merah). Anggota Chlorophyta berjumlah enam species. Ochrophyta memiliki anggota tiga species dan anggota Rhodophyta hanya satu species. Jenis-jenis makroalga yang ditemukan di Pesisir Atep Oki berpotensi menghasilkan senyawa bioaktif. Kata kunci : Makroalga, Senyawa Bioaktif, Pesisir Atep Oki Minahasa

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