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Diversity and Mollusca Distribution Patterns (Gastropoda and Bivalvia) In the North of Poncan Gadang Island, Sibolga City North Sumatera Province Royan Saputra; Zulkifli Zulkifli; Syafruddin Nasution
Journal of Coastal and Ocean Sciences Vol. 1 No. 1 (2020): September
Publisher : Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jocos.1.1.16-24

Abstract

This research was conducted in July-August 2019 in the northern part of the Poncan Gadang Island Sibolga, North Sumatra Province. This study discusses the distribution and distribution patterns of molluscs (gastropods and bivalves) which contain species, density, and species discussed in the northern part of Poncan Gadang Island, North Sumatra Province. The method used is a survey method, where the research location is divided into 5 observation stations and each station consists of 1 transect and each transect consists of 4 maps. The results showed that the type of gastropods found in the study site consisted of 11 species belonging to 6 families. Gastropod species that are commonly found are Littorina littorea. While the type of bivalves that were found at the study site consisted of 9 species belonging to 6 families, and the bivalves species that were found were Anadara granosa. Highest density at station III in the river mouth. Various index (H ') of gastropods and bivalves in all research stations are included in the medium category. Distribution Patterns both gastropods and bivalves are distributed in groups. The index value of approved gastropod and bivalve types (Ss) can be requested types which are found to be quite the same. The substrate at the study site was approved by the sand substrate. The density of both gastropods and bivalves were not significantly different between stations.
STUDI HISTOLOGI DAN PATOGENITAS Vibrio alginolyticus PADA KERAPU MACAN (Epinephelus fuscoguttatus Forskal) MARTONO MARTONO; IRWAN EFFENDI; ZULKIFLI ZULKIFLI
Jurnal Ilmiah Pertanian Vol. 3 No. 2 (2007): Jurnal Ilmiah Pertanian
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/jip.v3i2.1301

Abstract

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Analysis of Carbon Stock in Seagrass Enhalus acoroides in Benan Island, Lingga Regency Sayid Zulfahmi; Yusni Ikhwan Siregar; Zulkifli Zulkifli
Journal of Coastal and Ocean Sciences Vol. 1 No. 1 (2020): September
Publisher : Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jocos.1.1.51-59

Abstract

This research was conducted in Benan Island, Katang Bidara Subdistrict, Lingga Regency, Riau Islands Province in February 2020. This study aimed to determine the value of density, biomass and carbon stock in seagrass E. acoroides. The method used in this study is a survey method, where the data collected is considered to represent the waters of Benan Island. The density of seagrass E.acoroides in the study location ranged from 22.67 to 31.22 individuals/m2. E.acoroides seagrass is divided into two parts, namely the top of the substrate or above ground biomass (Agb) and the bottom of the substrate or bellows biomass (Bgb). The average value of biomass seagrass ranged from 1,113.27-4,412.24 g/m2. The highest carbon stock was in the rhizoma section at Station I (2,134.46 gC/m2) and the lowest was in the leaf section at Station II (363.08 gC/ m2). Biomass and carbon stock in the Bgb section is higher than the Agb portion
Pemberdayaan masyarakat melalui penerapan teknologi pengawetan dan pengolahan batang sawit untuk bahan baku mebel dekoratif Fakhri Fakhri; Alfian Malik; Pedia Aldy; Elianora Elianora; Zulkifli Zulkifli
Unri Conference Series: Community Engagement Vol 2 (2020): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.2.241-245

Abstract

Oil palm trunk is one of the biomass that has not been utilized and becomes waste in the former oil palm replanting location. The application of palm oil processing technology for furniture raw materials can provide solutions to target audiences to be utilized and developed in the future. The aim of the community service activity is to assist the processing of oil palm stems for the production of furniture that has distinctive features and high selling value. The method of implementing the activity is theoretical assistance and direct practice to target audiences regarding palm oil processing technology for decorative furniture products. Achievement measurement tools consist of theoretical understanding and application suitability in the field. The results of these activities can be implemented by various prototypes of furniture products. The partner's knowledge of the wood processing business makes the transfer of science and technology for the use of oil palm trunks easier to implement. Socio-economically for the local community is very beneficial because it can change the perception of the existence of palm oil stems which have been considered as waste into a potential that can be utilized for an economically valuable product.
DENSITY AND COVERAGE OF SEAGRASS ON DIFFERENT TYPE OF SEDIMENT AT PANDARATAN BEACH TAPANULI TENGAH REGENCY NORTH SUMATERA PROVINCE Dea Lianov; Efriyeldi Efriyeldi; Zulkifli Zulkifli
Asian Journal of Aquatic Sciences Vol 2 No 2 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (580.956 KB) | DOI: 10.31258/ajoas.2.2.138-144

Abstract

Seagrass ecosystem is one of shallow sea ecosystems that plays an important role to maintain stability of the sea. Density and coverage of seagrass depend on characteristic of sediment, include mean size and the type of sediment. The purpose of this study was to find out how density and coverage of seagrass on different type of sediment at Pandaratan Beach Tapanuli Tengah Regency North Sumatera Province. This research was conducted in April 2019. From the results can be discovered that there are two species of seagrass that found in Pandaratan Beach, Cymodocea rotundata and Enhalus acoroides. In the type of muddy sand sediment has the heighest density of seagrass which is 309 ind/m2 and categorized into very tight. In the type of sandy gravel sediment has the lowest density of seagrass which is 49 ind/m2 and categorized into very rare. And in the type of gravely sand sediment has the density of seagrass that is 234 ind/m2 and categorized into very tight. In the type of muddy sand sediment has the heighest coverage of seagrass which is 50.18% and categorized into good. In the type of sandy gravel sediment has the lowest coverage which is 17.72%. And in the type of gravely sand sediment has the coverage of seagrass which is 26.95% and categorize into moderately.