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Efriyeldi, Efriyeldi
Fakultas Perikanan Dan Kelautan, Universitas Riau
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Distribution of Bivalve Abundance in the Intertidal Zone of Bandar Laksamana Sub-District, Bengkalis District, Riau Province Muhammad Sabirin; Joko Samiaji; Efriyeldi Efriyeldi
Jurnal Perikanan dan Kelautan Vol. 29 No. 1 (2024): February
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.1.48-53

Abstract

This study was conducted in June 2022 to know the diversity and abundance of bivalve species as well as know the relationship between the total organic matter content of sediments and the abundance of bivalves found in the intertidal zone of coastal waters of Bandar Laksamana District. This research was conducted using the survey method, where each station consisted of 3 plots perpendicular to the coastline. Station 1 is in Tenggayun Village, Station 2 is in Api-Api Village, and Station 3 is in Parit Satu Api-Api Village. Observations and sampling were conducted directly in the field and then analyzed at the Marine Biology Laboratory, Department of Marine Science, Faculty of Fisheries and Marine, Universitas Riau. Based on the research results, it is known that the highest abundance of bivalves is found at Station 2, which is 2.07 ind/m2 with an organic content of 2.44%. At the same time, the lowest abundance of bivalves is found at station 1, which is 0.44 ind/m2 with an organic content of 0.91%. The bivalves found include Corbicula javanica, Anadara granosa, Solen sp, Pharella acutidens, and Anadara antiquata.
Length-Weight Relationship and Sex Ratio Blood Clam (Anadara granosa) in Rangsang Barat Waters  Kepulauan Meranti District, Riau Province Efriyeldi Efriyeldi; Yusni Ikhwan Siregar; Sofyan Husein Siregar
Jurnal Perikanan dan Kelautan Vol. 27 No. 2 (2022): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.2.158-163

Abstract

Anadara granosa is one of the bivalves that are often found in public markets. This study aimed to study the relationship between length-weight and sex ratio of blood clams (A. granosa) in the coastal waters of West Rangsang. Sampling was carried out every month at three stations. Shells were collected from a 1 x 1 m2 plot on a quadratic transect. The relationship between length and weight was analyzed by regression analysis. The sex ratio between the number of female and male blood clams in each month of sampling was calculated and followed by the Chi square test to test the similarity. The results showed that the relationship between length and weight of A. granosa was positive allometric. The sex ratio of female and male blood clams in the waters of West Rangsang is not balanced. The number of male blood clams is more than the female
Structure Community and Distribution of Benthic Foraminifera in the Waters of Bagan Tanjungbalai Village Asahan Regency North Sumatera Province Pohan, Rizal Suardiman; Rifardi, Rifardi; Efriyeldi, Efriyeldi
Journal of Coastal and Ocean Sciences Vol. 1 No. 1 (2020): September
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

This research was conducted in March 2019 in the waters of Bagan Tanjungbalai Village Asahan Regency North Sumatera Province. The purpose of the study were to analyze the community  structure and distribution of benthic foraminifera. Determination of the research was purposive sampling of 4 station with 3 sampling points where the distance each sampling point was 50 meters wich were based on the initial sampling point. In the study area were found 24 species of foraminifera.  The study showed that composition of sediment organic matter involved 4.97 - 15.26%, while the abundance of benthic foraminifera was between 13690 - 28571 ind/m2. Defferences of the abundance of benthic foraminifera at each station obtained a significant value of 0.01 or p < 0.05, which means a difference the abundance of  benthic foraminifera beetwen stations,but not significant. While the relative abundance between sampling is only 0.15-21.00%, while the relative sedimentation rate between sampling is 15.38 - 33.02%. 
Comparison of Carbon Reserves in Mangrove Sonneratia Alba and Nypa Fruticans in Pangkalan Jambi Village, Bengkalis District Riau Province Isnaini, Siti; Amin, Bintal; Efriyeldi, Efriyeldi
Journal of Coastal and Ocean Sciences Vol. 1 No. 1 (2020): September
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

This study was conducted in January – February 2020, which was located in Pangkalan Jambi Village, Bukit Batu District, Bengkalis Regency, Riau Province. The purpose of this study was to determine the potential amount of carbon stored in mangrove vegetation area of mangrove forests. The survey method was applied in this study and carbon stock analysis was carried out in the Marine Chemistry Laboratory, Faculty of Fisheries and Marine, University of Riau. Biomass and carbon stocks in N. fruticans is higher compared to S. alba. Based on the mangrove density, the average total biomass of S. alba and N. fruticans were 0,74 tons/ha and 11,65 tons/ha whilst.  Their carbon reserves were 0,35  tons/ha and 5,47 ton/ha, respectively. Potential carbon uptake of N. fruticans and S. alba were 20,07 tons/ha and 1,23 tons/ha, respectively. The potential N. fruticans in the village of Pangkalan Jambi is capable of absorbing 16 times large, compared to S. alba
This study was conducted in January 2020, located in Api-api Village, Bandar Laksamana District, Bengkalis. The purpose of this study was to determine the effect of the total organic of sediment content on the density of bamboo clam (S. lamarckii), in the Zulkifli, Muhammad; Nasution, Syafruddin; Efriyeldi, Efriyeldi
Journal of Coastal and Ocean Sciences Vol. 1 No. 1 (2020): September
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

This study was conducted in January 2020, located in Api-api Village, Bandar Laksamana District, Bengkalis. The purpose of this study was to determine the effect of the total organic of sediment content on the density of bamboo clam (S. lamarckii), in the intertidal zone. The method used in this study was a survey method. The results show that the content of organic sediment was relatively low with an average of 1.28%. The density of bamboo clam that ia found mostly in subzone 1 with the number 25 ind. The most frequent distribution of bamboo clam sizes is in the range of 5.0-5.4 cm with 56 inds. The relationship of organic sediment content with the density of bamboo clam is very weak with r = 0.1519 and R2 = 2.31%
Condition of Mangrove Forest in the Village of Apar Pariaman Utara District Pariaman City West Sumatra Province Alpian, Alpian; Efriyeldi, Efriyeldi; Thamrin, Thamrin
Journal of Coastal and Ocean Sciences Vol. 2 No. 2 (2021): May
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Pariaman Utara District has the most extensive mangrove forest, which is 16.5 ha, in Apar Village the amount (6.0 ha). The purpose of this study was to determine the type and density of mangrove forests and to determine the condition of mangrove forests by determining the percentage of canopy cover in Apar Village. The method used in this research is a survey method, where the data collected is data obtained directly from the field which is then analyzed the data. The research procedure consisted of several stages, namely, collecting density data at 3 stations. Each station consisted of 3 straight line transects along 50 meters from the sea and estuary to land with a position perpendicular to the coast and having a distance between transect lines of 50 meters. In each transect line there are 3 plots arranged in a zigzag manner with a size of 10 m x 10 m for the tree category mangrove community structure. Retrieval of canopy cover photo data which was then analyzed by hemispherical photography. The results of measurements of water quality from the research location were temperature 29 - 30 ° C, salinity 4 - 5 ‰ and pH of the waters were 6-7. The composition of mangroves in the research locations were Sonneratia caseolaris, Sonneratia alba, Rhizophora mucronata, Nypa fructicans. Density at station I, 1700.00 trees/ha, station II 1311.11 trees/ha and station III 1888.89 trees/ha. Canopy cover at station I, 80.65%, station II, 58.46% and station III, 83.21%
Relation Macrozoobenthos with Sediment Organic Material in the Intertidal Zone in Selat Baru Beach, Bengkalis Regency, Riau Province Pramita, Wisnu; Efriyeldi, Efriyeldi; Galib, Musrifin
Journal of Coastal and Ocean Sciences Vol. 2 No. 2 (2021): May
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Selat Baru Village was one of several beaches on Bengkalis Island which was located in the northern part of Bengkalis Island. Selat Baru Beach is a tourist spot that has the most visitors every day, especially during the Eid holidays. In addition, there are rivers, ports, and boat crossings also taking place on Selat Baru Beach. The purpose of this study was to determine the content of sediment organic matter, the type and abundance of macrozoobenthos, and to determine the relationship between the organic matter of sediment and the abundance of macrozoobenthos in the New Strait coastal waters. The method used was a survey method, where the data collected was primary data which was then analyzed statistically and discussed descriptively. The results of measurements of oceanographic parameters from the research location have an average temperature of 28,67 oC, and pH of 7, a salinity of 26,33 ‰, transparency of 24,33 cm, and a current velocity of 0,1 m/s. The average sediment content obtained at station 1 was 1,42%, station 2 was 0,77%, and station 3 was 7,34%. The percentage of sand fraction has the highest percentage at station 1 substation 3 (95,56%) and the lowest at station 3 substation 3 (39,78%), while the highest percentage of mud fraction was at station 3 substation 3 (54,19%) and the lowest found at station 2 substation 1 (4,15%). The macrozoobenthos found were from the Bivalvia class (Corbicula sp, Lucinidae sp, Anomia sp) and the Gastropod class (Nucella sp, Rabdotus sp, Cerithidea sp) and the Malacostraca class (Hermigrapsus sp). The average abundance of macrozoobenthos found at station 1 was 4,22 ind/m2, station 2 was 4,22 ind/m2, and station 3 was 10,67 ind/m2. The result shows the effect of the sludge sediment fraction on the abundance of macrozoobenthos has a coefficient of determination (R2) with a value of 0,9015 and a correlation coefficient (r) with a value of 0,9495 meaning that 90,15% of macrozoobenthos abundance was influenced by sediment fraction and the rest was influenced by other environmental factors
Growth of Api-Api (Avicennia alba) Rehabilitation in Kedaburapat Village, Rangsang Pesisir City Meranti Islands District Khawarizmi, Dannes M.; Efriyeldi, Efriyeldi; Siregar, Yusni Ikhwan
Journal of Coastal and Ocean Sciences Vol. 2 No. 2 (2021): May
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

This research was conducted in July-October 2020. Observation and data collection of Avicennia alba growth was carried out in the mangrove forest rehabilitation area, Kedaburapat, Kepulauan Meranti Regency. The purpose of this study was to analyze the growth of A. alba as on rehabilitation project based on the height and diameter planted in the coastal area of Kedaburapat, Kepulauan Meranti Regency. A survey method was conducted to obtain primary data. The data collected included the height and diameter of A. alba stems as well as measurements of water quality. The results of the research showed that the average height increase A. alba on the transect was 7.59-19.86 cm/month. The average value of the increased diameter based on the transect was 1.05-3.11 mm/month. Meanwhile, the average height by zone was 8.07-16.13 cm/month. The average value of the increased diameter by zone was 1.03-2.70 mm/month
The Structure of Macrozoobenthos Community in the Intertidal Zone of Api-Api Village Waters, Bandar Laksamana District, Bengkalis Sari, Nova Iman; Nasution, Syafruddin; Efriyeldi, Efriyeldi
Journal of Coastal and Ocean Sciences Vol. 2 No. 2 (2021): May
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

This research aims to analyze the structure of macrozoobenthos community in the intertidal zone of Api-Api Village waters, Bandar Laksamana District, Bengkalis regency. There were 5 subzones determined as the observation areas. Each subzone consists of 5 subplots which taken parallel to the coast with a distance of 10 meters from each subplot. The types of macrozoobenthos found consisted of 4 classes, 19 families, and 23 species. The diversity index for each subzone ranged from 2.72 to 3.55, species uniformity index ranged from 0.78-0.91 and dominance index ranged from 0.11-0.19, with the criteria of a uniform distribution pattern. The highest macrozoobenthos density was in subzone 1 with a total density of 19.6 ind/m2, while the lowest was in subzone 4 with a total density of 10.6 ind/m2. The result of statistical tests using Analysis of Variance (ANOVA) at a confidence interval of 95% (ɑ = 0.05), showed that macrozoobenthos density in subzone 1,2,3,4 and 5 was not significant in different (P = 0.824), which means that there was no real different density that five subzones
Community Structure of Benthic Epifauna in Mangrove Forest Rehabilitation of Kedaburapat Village Kepulauan Meranti District Syafrhani, Wan Nabila; Efriyeldi, Efriyeldi; Zulkifli, Zulkifli
Journal of Coastal and Ocean Sciences Vol. 2 No. 3 (2021): September
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

The mangrove forest area is important for benthic epifauna because it is a habitat for benthic epifauna. This research was conducted in September 2020 in the mangrove forest rehabilitation area of ​​Kedaburapat Village, Kepulauan Meranti. In this study, it was divided into 2 areas, namely the mangrove planting period 2018 and the planting period 2019. The result of this study found 18 species from 2 classes, Gastropods and Malacostraca. Gastropod class namely Littoraria melanostoma, Nerita balteata and Sphaerassiminea miniata; and Malacostraca classes namely Macrophthalmus convexus, Clibanarius longitarsus and Clibanarius ambonensis. Macrozoobenthic abundance values ​​ranged from 50.33 to 46.63 ind/m2, the diversity index value (H ') was between 1.23-2.27, the dominance index value was 0.30-0.65, the uniformity index (E) ranged from 0.32-0.67 and the distribution ranges from 0.94-1.61. Water quality parameters measured include temperature, salinity, pH, organic matter, TSS and substrates that affect the presence of benthic epifauna
Co-Authors ', Zefendra ', Zulkifli AA Sudharmawan, AA Abdullah, Ikhlas Abiyu Rohid Adani Fatahilal Arifin Adila, Melin Adiyatma, Patwa Afrizal Tanjung Agnesia, Yohana Agus Mandar, Agus Agus Sutikno Agusti, Dianda Roaana Agusti, Dinda Roanna Ahmad Pasmuji Ahmadryadi_ahmadryadi Ahmadryadi_ahmadryadi Akmal Hawari Alfiana, Dewi Alghani, Muhammad Roif Alpian Alya, Alya Ananda, Nahdya Nasri Andreas Situmorang Andrew ST OS Andri Hendrizal Andrito, Wahyudi Angelia E Bernike Zebua Anggina, Viona Novi ani ani Anugrah, Muhammad Dea Aprizon Putra Aras Mulyadi Arbianti, Purnama Ardiana, Eka Ariaz, Panji Ahmad Arif Rahman Hakim Arifin, Adani Fatahilal Arlius Arlius, Arlius Arniati, Dina Asma Husna Putri Asma Ul Husna Putri Ayuni, Putri Bagas Ariya Pambudi Bahari, Sandy Bahruddin Batubara, Ummi Mardhiah Bintal Amin Bona Juandi Bonawi Sihombing Bonita Tiolina Exaudi Budijono, Budijono Burhan Marbun Cahyo, Bintang Dwi Clara Yolandika Cut Shifa Nedi Dame, Jupparoh Caisar Van Dandi Arianto Pelly David Raymond Sianturi Dedi Afandi Defri Yoza Dela Haryani Dermawan, Ernanda Putra Desmarina, Y. Despela, Despela Dessy Yosswaty Dessy Yoswaty Dessyka Febria, Dessyka Destriana Destriana Dewi Alfiana Dewi, Delviana Dianda Roanna Agusti Dietriech Geoffrey Bengen Doni Gunawan Tampubolon Dwigantara, M. Fadhol Eko Prianto, Eko Elfind Laoli Elfis Suanto Elizal, Elizal Endi Setiadi Eni Sumiarsih Enny Herawaty Simamora Erick Palatema Esti Nur Rahayu Esti Nur Rahayu Exaudi, Bonita Tiolina Fachry Abda El Rahman Fajriani Ananda Fajriani, Annisa Farona, Fella Fazli Pasha Amri Febrianto Roby Mukhti Fernando, Muhammad Zebi Fia Novianty Fitria Roza Fitriani, Ersa Friska Maulidah Fuadi, Indra Gavion Roston Sitepu Ginting, Dya Indriati Br Ginting, T.B. Gita Purnama Sari, Gita Purnama Gusfi, Melly Hadi Sastranegara Hadiyatma, Patwa Halida Sisda Harahap Hanryani, Putri Hapzi Ali Harahap, Anugrah Setiadari Hardianto Andita Harry Leonardo Barutu Hasan, Masyhuda Hasanah, Siti Umiyatul Hasyim, Ardhan Fadhlani Hendra Taufik Herrys V Silalahi Hersa, Tania Hesty Widyaningsih Homsatun, Nuning Hutomo, Ragil Tribhakti Ida Ayu Putu Sri Widnyani Ikhsan Setiawan Ilham hidayat Ilham Ilahi Imanuel, Andrean Nggara Imran , Imran Imran Imran Indra Bayu Pratama Indradewa, Rhian Inel Vivi Elvia Inka Wahyuni Intan, Selpia Irvina Nurachmi Irwan Effendi Iskan Fami Jumaidi Isnaini, Siti Joko Samiaji Josua Simanjuntak, Josua Judika Nursiani Sipahutar Jufri Jufri Jufri Jufri Junika Cecelia Putri Jupri, Tahany Nur Fadhilah Jupri, Tahany Nur Fadhillah Kaharudin, Zakaria Karnila, Rahman Karnila Kartina &#039; Khairunnisa Khairunnisa Khawarizmi, Dannes M. Kholida, Azzahra Kristoper Aritonang Laila Langsana Laksono Trisnantoro Langsana, Laila Laoli, Elfind Lee, Seung Hun Lianov, Dea Lie Othman Lieng, Lieng Lubis, Abdillah Lucky Syarif Lulu Mayna Nabilla M, Ridwan Rafsyanjani. M. Fadhol Dwigantara M. Subkhan Riza Maria Erna Martha, Rezky Dwi Matondang, Ridwan Rafsyanjani Maulana, Agung A. Mayrany, Sri Eva Meitasuri, Gevi Mia Fatma R Miswadi Miswadi Mubarak Mubarak Mubarak Mubarak Muhammad Aulia Rahman Muhammad Farhan Muhammad Rafsan Zain Muhammad Rizki Fadly Muhammad Rizky Rinaldi Muhammad Rusdi Muhammad Sabirin Muhammad Syarif Muhammad Zebi Fernando Muhammad Zebi Fernando Muhammad Zulkifli, Muhammad Mukhlis Alfarys Musrifin Galib Musrifin Ghalib Musrifin Musrifin Nababan, Sitty Mey Nabila, Chici Nabilah Jauharah Nadeak, Paulinus Nadida, Putri Nadiyatus Sholihat Nadratul Jamila Nasution, Fadli Ripai Nasution, Muhammad Rasid Naufal Sidqi Nawari Nawari Nawari Nawari, Nawari Noel GM Situmorang Novia Suci Yanti Novri Ditama Syafni Nuning Homsatun Nurafni, Melia Nurmalahayati, Yasinta Nursyirwani, Nursyirwani Oktari, Mela Oktaria, Rusiani Pambudi, Bagas Ariya Panggabean, Iis Panggabean, Iis Apriati Panji Ahmad Ariaz Patwa Hadiyatma Paul Rozeki Sinaga Pohan, Rizal Suardiman Pradini, Ulfa Rizki Pramita, Wisnu Pratama, Muhammad Dandy Syifa Prayitno, Betari Erlinda Putri Ayuni Putri Rifdayati Putri, Dinda Maharani Putri, Rahmi Putri, Rahmi Delima Putrianfi, Nadhifah Asilah Rafsyanjani M, Ridwan Rahayunigtyas, Putri Rahma Eka Putri Rahmadhani, Tami Fitri Rahmi Susanti Rahmita, R. Raja Rahmita Ramadani Safitri Ramadhan, A.R Ramadhan, A.R. Ramadhan, Muhammad Farizqy Rangga Wardana Rasoel Hamidy Razid, Muhamad Renata, Vivien Reny Cristina Naibaho RIDWAN AFFANDI Ridwan Manda Putra Rifaldi Rifaldi, Rifaldi Rifardi Rifda Syofiana R Rifdayati, Putri Rini, Yulia Sapta Rivaldi, Rahmat Rizki Dwi Yezelkiel Rizki, A. Romie Jhonnerie Ronal Kurniawan Rosiana, Kenny S. Pane, Rolis Sabirin, Muhammad Safatriani Safatriani Safitri, Winda Santi Maya Sari Saputra, Rengki Sari, D.J. Sari, Dwi Julita Sari, Lita Sari, Nova Iman Savita, Dinda Sihombing, Kelvin Simamora, Enny Herawati Siregar, , Yusni Ikhwan Siregar, Ali Mora Hadamean Siregar, Rafly Fadiansyah Siregar, Rifa Ghina Aulia Siti Anisah Siti Fatonah Siti Hasanah Siti Umiyatul Hasanah Sitorus, Tiroy Sofyan H. Siregar Sofyan Husein Siregar Sonya Marunjung P.Hsb Sri Murtin Sufaidah, Siti Nur Sujianto Sujianto Sujianto Sujianto Sukendi Sukendi Sulistio, Hendra Tri Suparno . Suwondo Suwondo Suzila &#039; Syafrhani, Wan Nabila Syafrizal Syafrizal Syafruddin Nasution Syahril Nedi Syamsiar, Syamsiar Syawfy Luthfiandra Taat Mujaid Arifin Tania Hersa Tanjung, Lismawati Tengku Mutia Smita Dwivayana Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Tri Lestari Tri Prartono Triatama, Putri Zulfa Trisla Warningsih Uswatun Hasanah Vichi Apridianti Vivien Renata Wahyu Novra Wanda Wahyudi Wahyudi Wanda Syahrian Wardana, Rangga Wulan Cempaka Sari.S Yahya Benardus Sihombing Yanti, D.H. Yehezkiel, Rizki Dwi Yeli Hartuti Yetti Elfina Yohanna Siagian Yona, Fitria Mai Yosua Afrianus P Yulinda, Emelda Yusni Ikhwan Siregar Zain, Rahmita Firda Zakaria Kaharudin Zaki, Raihan Zientika, Zientika Zulhendri Zulhendri Zulkifli &#039; Zulkifli Zulkifli Zulkifli Zulkifli