JURNAL PESISIR DAN LAUT TROPIS最新文献

{"title":"KAJIAN KOMUNITAS EKOSISTEM LAMUN DI SEMENANJUNG TARABITAN KECAMATAN LIKUPANG BARAT KABUPATEN MINAHASA UTARA","authors":"Risandi D Sitaba, Carolus P. Paruntu, Billy Theodorus Wagey","doi":"10.35800/jplt.9.2.2021.34836","DOIUrl":"https://doi.org/10.35800/jplt.9.2.2021.34836","url":null,"abstract":"This research was conducted in the waters of Tarabitan Peninsula, West Likupang North Minahasa using quadants transect method. The purpose of this study was to determine the community structure of seagrass found in that waters as initial information for sustainable management seagrass ecosystem . Field observation was conducted to identify the seagrass species, number of individuals/shoots, percent cover for each type of seagrass in those plotting quadrants. The result of this study documented 6 types of seagrass namely, Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Syringodium isoetifolium, Halophila ovalis and Halodule uninervis. The species composition and distribution of seagrass were varied and was dominated by Thalassia hemprichii was the most dominant seagrass species with a relative density of 55.55%, a relative frequency of 33.67%, 39.92% relative cover, an important value index of 129.03%, a diversity index of 1.30 belonging to this condition, moderate, the uniformity index of 0.72 is classified as high and the dominance index of 0.2 is classified as low. Based on Minister of Environment Decree Republic Indonesia No. 200 of 2004 concerning the status of seagrass beds, the condition of the seagrass beds in the waters of Tarabitan Village is classified as rich / healthy with a cover value of ≥ 60. Keywords : Seagrass Community, Species Composition,  distribution, Tarabitan Peninsula           Penelitian ini dilakukan di perairan Semenanjung Tarabitan Likupang Barat Minahasa Utara dengan menggunakan metode transek kuadran. Tujuan penelitian ini adalah untuk mengetahui struktur komunitas lamun yang terdapat di perairan tersebut sebagai informasi awal untuk pengelolaan lamun secara berkelanjutan. Pengamatan lapangan dilakukan untuk mengidentifikasi jenis lamun, jumlah individu/tegakan, persentase tutupan tiap jenis lamun pada tiap kuadran. Hasil penelitian ini mendokumentasikan 6 jenis lamun yaitu Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Syringodium isoetifolium, Halophila ovalis dan Halodule uninervis. Komposisi jenis dan sebaran lamun bervariasi dan didominasi oleh jenis lamun Thalassia hemprichii merupakan jenis lamun yang paling dominan dengan kerapatan relatif 55,55%, frekuensi relatif 33,67%, tutupan relatif 39,92%, indeks nilai penting 129,03%, indeks keanekaragaman 1,30 tergolong dalam kondisi sedang, indeks keseragaman 0,72 tergolong tinggi dan indeks dominansi 0,2 tergolong rendah. Berdasarkan Keputusan Menteri Lingkungan Hidup Nomor 200 Tahun 2004, kondisi padang lamun di perairan Desa Tarabitan tergolong kaya / sehat dengan nilai tutupan ≥ 60.Kata Kunci: Komunitas Lamun, Komposisi Jenis, Distribusi, Semenanjung Tarabitan","PeriodicalId":17792,"journal":{"name":"JURNAL PESISIR DAN LAUT TROPIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88454002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"KONDISI TERUMBU KARANG PADA KAWASAN WISATA PANTAI MALALAYANG KOTA MANADO PROVINSI SULAWESI UTARA DENGAN MENGGUNAKAN METODE UNDERWATER PHOTO TRANSECT","authors":"Devidson Daud, Joshian N. W. Schaduw, Chatrien Annita Luzianna Sinjal, Janny D Kusen, Erli Y Kaligis, A. Wantasen","doi":"10.35800/jplt.9.1.2021.33575","DOIUrl":"https://doi.org/10.35800/jplt.9.1.2021.33575","url":null,"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","PeriodicalId":17792,"journal":{"name":"JURNAL PESISIR DAN LAUT TROPIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91192140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ISOLASI JAMUR SIMBION ASCIDIA Schizophyllum commune YANG MEMILIKI AKTIVITAS ANTIBAKTERI","authors":"Gianfranco Montolalu, Deiske A. Sumilat, N. D. Rumampuk, I. Rumengan, R. Lintang, Reni L. Kreckhoff","doi":"10.35800/jplt.9.1.2021.33569","DOIUrl":"https://doi.org/10.35800/jplt.9.1.2021.33569","url":null,"abstract":"Ascidian is a benthic invertebrate that produces secondary metabolites. The substances were produced by the ascidian as self-defense from many environmental factors. Several studies report the similar structure between the substances extracted from ascidian and symbiotic fungi with biological activities. This study aims to isolate fungi associated with ascidian Eudistoma sp., then observe its potency on inhibiting bacteria S. aureus dan A. hydrophila. PDA was used to isolate and culture fungal isolate, then extraction using solvent ethyl acetate. Antibacterial activity of this symbiotic fungi isolates extract was performed using the Kirby-Bauer disc diffusion method. Molecular identification of fungi results that the symbiotic fungi were Schizophyllum commune. The observing result showed that fungal extract has the ability on inhibiting the growth of S. aureus and with the inhibition zone 8 mm and A. hydrophila 8,5 mm.Keywords: Ascidian, Eudistoma sp., Schizophyllum commune, Symbiotic, Antibacterial","PeriodicalId":17792,"journal":{"name":"JURNAL PESISIR DAN LAUT TROPIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74398237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"LAJU PERTUMBUHAN DAN KEPADATAN MIKROALGA Dunaliella sp. PADA PEMBERIAN TIMBAL ASETAT DENGAN KONSENTRASI YANG BERBEDA","authors":"Fitly Tewal, Kurniati Kemer, J. Rimper, D. Mantiri, Wilmy E Pelle, Joppy D. Mudeng","doi":"10.35800/jplt.9.1.2021.33571","DOIUrl":"https://doi.org/10.35800/jplt.9.1.2021.33571","url":null,"abstract":"Microalgae are organisms that contain chlorophyll and other pigments so they can carry out photosynthesis. Microalgae are widespread in nature and can be found in any environment exposed to sunlight. Microalgae are micro-sized biota with a diameter of less than 2 µm. The benefits of microalgae for other living things, especially humans, are numerous, including as a source of food and ingredients in the manufacture of medicines. Dunaliella sp. is a group of green algae that contains protein, fat and carbohydrates as a good source of food. Growth rate and density of microalgae Dunaliella sp. and the effect of lead acetate with different concentrations was observed using a microscope, starting from the lag phase, the logarithmic phase, the stationary phase and the declination phase. Dunaliella sp. Experiencing an exponential phase in the observation before treatment, namely on the 9th day and then doing the treatment. Treatment with lead acetate with concentrations of 10 ppm, 50 ppm and 80 ppm is very influential in the growth of microalgae. The result is that lead acetate contains toxins that can kill microalgae cells in both low and high concentrations.Keywords: Microalgae, Dunaliella sp., Lead Acetate, Concentration","PeriodicalId":17792,"journal":{"name":"JURNAL PESISIR DAN LAUT TROPIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76781687","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"FILOGENI MOLEKULER BAKTERI DARI MEDIA PEMELIHARAAN ROTIFER YANG DIBERI OLAHAN LIMBAH IKAN SEBAGAI SUMBER NUTRISI","authors":"Herlin S Hubu, Stenly Wullur, Veibe Warouw, Elvy Ginting, R. Bara, A. Wantasen","doi":"10.35800/jplt.9.1.2021.33574","DOIUrl":"https://doi.org/10.35800/jplt.9.1.2021.33574","url":null,"abstract":"This study aims to identify and construct molecular phylogeny of an isolate bacteria from culture media of rotifer Brachionus rotudiforis supplied with processed fishery waste feed as nutritional source. The use of fish waste-based food for rotifer showed positive effects on growth and nutrient content of the rotifers. Genomic DNA of the isolate bacteria BRLI- 01 was extracted and the 16S rRNA gene was amplified using primers (8F and 1492F) and further sequenced using Sanger sequence technique. The 16S rRNA gene was analysed using SeqScanner® and MEGA® followed with BLAST (Basic Local Alignment Search Tool) analyses in the NCBI (National Centre for Biotechnology Information). Amplification result of 16S rRNA gene bacteria s NCBI site as a reference for identification and phylogeny of bacterial species. BRLI-01 was successfully cultured on rotifer rearing media. The results of the 16S rRNA gene amplification of the isolate bacteria showed a DNA band with a length of 1400 bp. The BLAST result on the NCBI showed that the isolate bacteria BRLI-01 had a percent identity (98.46%) and is in the same phylogony branching position with Vibrio rotiferianus Keywords: Rotifers, Bacteria, Fish waste, 16S rRNA Genes, Phylogeny identification","PeriodicalId":17792,"journal":{"name":"JURNAL PESISIR DAN LAUT TROPIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89065996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"SIPUT PROSOBRANCHIA (GASTROPODA, MOLUSKA) PADA RATAAN TERUMBU KARANG DI TELUK MANADO","authors":"Jevvrandi E Bambulu, F. Boneka, B. Wagey","doi":"10.35800/jplt.9.1.2021.35532","DOIUrl":"https://doi.org/10.35800/jplt.9.1.2021.35532","url":null,"abstract":"Molluscs are marine organisms that do not have a backbone, these organisms are associated with coral reefs. This research was conducted with the aim of describing the density and diversity of Prosobranchia snails’ species on coral reef flats. By applying the belt transect method, the results show that the density of the four Mokupa stations has a relatively high density between Tongkeina, Malalayang and Bulo. While for species diversity, Mokupa and Bulo had the highest value than Tongkeina and Malalayang. According to the results of the belt transect method, is the concluded that stations close to people’s homes have the lowest density and species diversity values, this factor is influenced by anthropogenic activities or human activities. Therefore, it is recommended that there be monitoring of snails on coral reefs, especially reef flattening in order to provide information about Prosobranchia snails.Keywords: Prosobranchia, Density, diversity, belt transects, Reef Flats","PeriodicalId":17792,"journal":{"name":"JURNAL PESISIR DAN LAUT TROPIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81873407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"BIOINDEKS ZOOPLANKTON DI PERAIRAN PULAU BUNAKEN","authors":"Kezia Keren Erika Tampi, J. Rimper, Veibe Warouw","doi":"10.35800/jplt.9.1.2021.33624","DOIUrl":"https://doi.org/10.35800/jplt.9.1.2021.33624","url":null,"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","PeriodicalId":17792,"journal":{"name":"JURNAL PESISIR DAN LAUT TROPIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84837387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"KEANEKARAGAMAN DAN KEPADATAN ECHINOIDEA DAN ASTEROIDEA DI RATAAN TERUMBU KARANG PERAIRAN TONGKAINA DAN BAHOWO KOTA MANADO (","authors":"Ailen Imanuel Eman, E. Kaligis, Chatrien Annita Luzianna Sinjal, Billy Theodorus Wagey","doi":"10.35800/jplt.9.1.2021.33075","DOIUrl":"https://doi.org/10.35800/jplt.9.1.2021.33075","url":null,"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","PeriodicalId":17792,"journal":{"name":"JURNAL PESISIR DAN LAUT TROPIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83409363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"STRUKTUR KOMUNITAS DAN ZONASI VEGETASI MANGROVE DESA DARUNU KECAMATAN WORI KABUPATEN MINAHASA UTARA","authors":"Udin Upara, Janny D Kusen, C. Sondak, Joshian N. W. Schaduw, S. Tilaar, Ridwan Lasabuda","doi":"10.35800/jplt.9.1.2021.33957","DOIUrl":"https://doi.org/10.35800/jplt.9.1.2021.33957","url":null,"abstract":"Mangrove ecosystem is a collection of distinctive plant types that contained in tropical and subtropical coastal region. The purpose of research was to find out the community structure and mangrove zonation at Darunu Village, Wori District, North Minahasa Regency. The research was conducted by   the quadrant transect line method. It was done by pulling a straight line, perpendicular from the outermost mangrove area to the land direction, along 100 m by determining three data retrieval Station. To determine the condition of mangrove then density, species frequency, species coverage, important value index, diversity index and equality types were analyzed. The result found 5 mangroves species, namely: Rhizophora apiculata, R. mucronata, Sonneratia alba, Bruguiera gymnorrhiza and Avicennia officinalis. The highest density value was R.apiculata, as well as species frequency, while the species coverage value  found in S. alba. The diversity value found at Station 2. The zonation of mangrove vegetation in Darunu village respectively, at Station 1 and 2 in the front was overgrown by R.apiculata species with sandy mud substrate.  The Station 3 was overgrown by S.alba species with sandy mud. Generalyl, this location substrate contains of sandy mud and mud.Keywords : Mangrove, community structure, zonation.","PeriodicalId":17792,"journal":{"name":"JURNAL PESISIR DAN LAUT TROPIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88141552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ekstraksi Pigmen Klorofil Total Pada Mikroalga Dunaliella sp. Yang Telah diberi Perlakuan Timbal Asetat","authors":"Oscar M Lamohamad, Kurniati Kemer, D. Mantiri, Ester Angkow, James J. H. Paulus, A. Wantasen","doi":"10.35800/jplt.9.1.2021.33074","DOIUrl":"https://doi.org/10.35800/jplt.9.1.2021.33074","url":null,"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    ","PeriodicalId":17792,"journal":{"name":"JURNAL PESISIR DAN LAUT TROPIS","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77584283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}