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THE EFFECT OF PLASTIC COVERS WITH DIFFERENT COLOR ON THE TYPE AND ABUNDANCE OF EPIPELIC DIATOMS IN THE NATURAL LOVERS INTERTIDAL AREA (PAB) CITY OF DUMAI Nisa, Chairun; Siregar, Sofyan Husein; Nasution, Syafruddin
Asian Journal of Aquatic Sciences Vol. 6 No. 1 (2023): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

The purpose of this study was to determine the effect of the plastic cover with different colors on the type and abundance of epipelic diatoms. This research was conducted in March 2022 which is located in the Pecinta Alam Bahari (PAB) area of ​​Dumai City. The method used is an experimental method with plastic cover treatment with different colors. This experiment has one factor, namely plastic color, with four levels of treatment, namely no plastic (control), clear, red, and black colors. The type of plastic used is the same type of plastic. The experimental units are made of iron which is assembled with a size of 1x1m and 12 subunits are measuring 10x10 cm. Observations were made every day for three consecutive days. The results showed that there were 15 species of epipelic diatoms, where the species that were often found every day were Cosdisnodiscus sp., Gyrosigma sp., Navicula sp., and Pleurosigma sp., Skeletonema sp, Striatella sp, Synedra sp. The abundance of diatoms in the treatment without plastic ranged from 38993.8 - 68239.2 ind/cm2, the clear plastic cover ranged from 39880.04 to 67353.0 ind/cm2, the red plastic cover ranged from 31904.0 to 69125.4 ind/cm2, and the black plastic cover ranged from 28359.14 – 54945.83 ind/cm2. The results of the One Way Anova test between treatments showed a significant difference every day, except on day 0 which was not significantly different.
COMPARISON OF MACROZOOBENTHOS COMMUNITY STRUCTURE ON SEAGRASS ECOSYSTEMS IN THE WATERS OF NIRWANA COAST AND PULAU PANJANG OF WEST SUMATRA Julians, Rizky Fajar; Nasution, Syafruddin; Nursyirwani, Nursyirwani
Asian Journal of Aquatic Sciences Vol. 6 No. 1 (2023): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Macrozoobenthos have various roles in the ecosystem, one of which is as a biological indicator because macrozoobenthos will react to disturbances in an aquatic ecosystem. Seagrasses are breeding and sheltering grounds for marine life, one of which is macrozoobenthos. Nirwana Beach and Pulau Panjang are waters that have seagrass ecosystems in West Sumatra. The purpose of this study was to compare the community structure of macrozoobenthos in the waters of Nirwana Beach and Pulau Panjang, this research was conducted in the waters of Nirwana Beach and Pulau Panjang in June-July 2021. The method used in this study is the survey method; sampling was carried out using three plots on each transect with a size of 1m x 1m and was repeated three times on each plot. The results of this study found that the abundance value in the waters of Nirwana Beach was 20.59 ind/m2 and in the waters of Pulau Panjang 21.44 ind/m2, the diversity index (H’) in the waters of Nirwana Beach was 2.450 and in the waters of Pulau Panjang was 2.680, The uniformity index (E) in the waters of Nirwana Beach is 0.738 while in the waters of Pulau Panjang, it is 0.807 and the dominance(C) in the waters of Nirwana Beach is 0.162 and in the waters of Pulau Panjang is 0.198. The distribution pattern (Id) of macrozoobenthos at both locations is clustered with a value of 1.07 ind/m2 in the waters of Nirwana Beach and 1.13 ind/m2 in the waters of Pulau Panjang. The community similarity index was categorized as moderate with 66% at both study sites.
POPULATION DENSITY AND LENGHT -WEIGHT RELATIONSHIP IN MANGROVE GASTROPOD Cerithidea cingulata AND Littoraria scabra OF PANGKALAN SESAI VILLAGE, DUMAI CITY Bariddah, Sania; Nasution, Syafruddin; Nedi, Syahril
Asian Journal of Aquatic Sciences Vol. 3 No. 3 (2020): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Cerithidea cingulata and Littoraria scabra are type of snail that use mangrove ecosystems as one of their habitat. Dumai is one of the industrial cities in the province of Riau, where various kinds of human activities can disrupt the ecosystem of mangroves and its associated biota. This research was conducted in October 2018 in the Mangrove Forest Area (PAB) of Pangkalan Sesai village of Dumai City, aiming to determine population densities and length-weight relationship of C. cingulata and L. scabra. The method used in this study is a survey method. Sampling was conducted by using the line transect method, where each station consists of 3 transects and each transect consists of 3 sampling points as replications. The results showed the population density of C. cingulata and L. scabra snails was higher than at stations near the Dumai river estuary compared with the population near by mangrove forest and length-weight relationship showed that the growth patterns of both C. cingulata and L. scabra were allometric negative and have strong correlation value.
POPULATION STRUCTURE AND REPRODUCTION OF THE RAZOR CLAMS Solen lamarckii (Chenu, 1843) IN THE INTERTIDAL ZONE OF API API VILLAGE WATERS, BENGKALIS REGENCY Fahmia, Rani; Nasution, Syafruddin; Tanjung, Afrizal
Asian Journal of Aquatic Sciences Vol. 3 No. 3 (2020): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Razor clam (Solen lamarckii) is a type of pelecypoda that has high economic value on the Api api village waters, Bengkalis Regency. This research aims to study the population structure and reproduction of razor clam. The study was carried out over 2 month period from September to October 2019 at Api api village waters, Bengkalis Regency. Razor clam samples were collected by using a 1 x 1 m2 frame that laid along transect. There were 5 plots and 5 subplots along the transect as replications. The result showed, the population density of razor clams is 3.12 species/m2 in September and 2.88 species/m2 in October 2019. The distribution pattern of razor clams was uniform. While, the most common size of razor clam is the medium size category (40-60 mm) both in September and in October 2019. The average value of gonado somatic index (GSI) was 2.28-8.60%. Histological analysis indicated that maturity gonad stage of razor clam was commonly found in September is maturity gonad stage I (60%), while in October is stage III (40%) and stage IV(30%).
CONDITION OF MANGROVE FORESTS IN DOMPAK URBAN VILLAGE BUKIT BESTARI SUB-DISTRICT RIAU ISLAND PROVINCE Imanuel, Andrean Nggara; ef, Efriyeldi; Nasution, Syafruddin
Asian Journal of Aquatic Sciences Vol. 3 No. 3 (2020): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

This study was conducted in December 2019, which was located in Dompak Village, Bukit Bestari District, Tanjungpinang City, Riau Islands Province. The purpose of this study was to determine the species composition and condition of mangrove forests based on the value of density, canopy cover and the importance value index of mangroves. The survey method was used in this study, where the data collected was primary data. There are 10 types of mangroves including Avicennia lanata, Bruguiera gymnorrhiza, B. cylindrica, Rhizophora apiculata, R. stylosa, Nypa fruticans, Sonneratia alba, Xylocarpus granatum, Scyphiphora hydrophyllacea and Hibiscus tiliaceus. Mangrove density was in good condition with moderate to dense ​​ranging from 1344.44-1555.56 ind/ha. Canopy cover was in good condition ​​ranging from 61.49-68.47%. The highest importance value index was R. apiculata with a value of 140.32% and the lowest was B. cylindrica with a value of 4.29%.
THE EFFECT OF AMMONIUM SULPHATE (ZA) FERTILIZER CONCENTRATION ON THE GROWTH OF MICROALGA POPULATION (Nannochloropsis oculata) Fery, Rony Andes; Nasution, Syafruddin; Siregar, Sofyan Husein
Asian Journal of Aquatic Sciences Vol. 3 No. 2 (2020): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

This research was conducted from 24 June to 6 July 2019 in the Regional Technical Implementation Unit of the Seawater and Brackish Aquaculture Fisheries Center (UPTD BPBALP Teluk Buo), West Sumatra. This study aim to determine the effect of Ammonium Sulfate ((NH4)2SO4) with different concentrations on the growth rate of Nannochloropsis oculata microalgae population. The method used in this study is an experimental method using a completely randomized design (CRD) one factor, namely ZA fertilizer concentration. There were 5 (five) levels concentration tested, namely 0 ml/L (control treatment), 30 ml/L (treatment A), 40 ml/L (treatment B), 50 ml/L (treatment C), and 60 ml/L (treatment D) total of 15 treatment units. The test organism in this study was N. oculata. The container used is a glass jar (2 liter capacity). The test parameters in this study are the maximum cell population density achieved during 5 days of maintenance (120 hours), relative growth, self-doubling time and specific growth rate during the exponential growth phase. The results of this study indicate that the best concentration of ZA fertilizer for cell population growth is 40 ml/L, followed by a concentration of 30 ml/L, a concentration of 50 ml/L, a concentration of 60 ml/L and the lowest at a concentration of 0 ml/L (control).
ADDITION OF VITERNA WITH DIFFERENT DOSAGE ON PELLET FEED ON GROWTH OF GROUPER FISH SEED (Cromileptis altivelis) Irfan, Muhammad; Nasution, Syafruddin; Nurrachmi, Irvina
Asian Journal of Aquatic Sciences Vol. 3 No. 2 (2020): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

This research was conducted from 15 June - 27 July 2019 in the Regional Technical Implementation Unit of The Seawater and Brackish Aquaculture. (UPTD BPBALP Teluk Buo), West Sumatra. This study aim to determine the best of viterna multivitamin right on the growth and the survival of grouper fish (Cromileptis altivelis) seed. The method used in this study was an experimental method using a complete randomized design (RAL) with 4 treatments (A: 0 ml / kg of feed, B: 10 ml / kg of feed, C: 15 ml / kg of feed and D: 20 ml / kg of feed). Parameters in this research are absolute weight growth, absolute length growth, specific growth rate and survival rate. The results of this research are to find out the best viterna multivitamin dose for absolute weight growth was 10 ml / kg of feed, absolute length growth was 10 ml / kg of feed, the specific growth rate was 10 ml / kg of feed and survival rate was 100% of all treatments.
COMMUNITY STRUCTURE OF GASTROPOD (MOLLUSCA) IN THE MANGROVE ECOSYSTEM OF PURNAMA, DUMAI CITY RIAU PROVINCE Bahari, Sandy; Nasution, Syafruddin; Efriyeldi, Efriyeldi
Asian Journal of Aquatic Sciences Vol. 3 No. 2 (2020): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

This research was conducted in January 2019 on the mangrove ecosystem of Purnama Dumai City, Riau Province with the aim to determine the structure of the gastropod community which includes the type, density, diversity, distribution patterns and similarity of the community. The method used is a survey method, where the sampling location consists of 5 research stations. The type and density of gatropods are determined by drawing a transect line from the mangrove forest towards the highest tide line. The transect was placed in 3 1x1 m2 maps with a distance of 10 m. The results showed that the Gastropod species found consisted of 6 species, namely Nerita costata, Telebrelia sulcata, Cicopreus capucinus, Telescopium telelescopium, Littorina sp, Volema myristican. Based on ANOVA analysis, gastropod density between stations was not significantly different in the waters of Purnama Village, Dumai City. Diversity is categorized as medium, Uniformity is categorized as balanced and the dominance of certain types. While the overall distribution pattern of Gastropods tends to be clustered.
MORPHOMETRIC STUDY AND DENSITY OF Telescopium telescopium IN MANGROVE ECOSYSTEM OF SEKODI VILLAGE, BENGKALIS REGENCY, RIAU PROVINCE Alka, M Abdi; Mulyadi, Aras; Nasution, Syafruddin
Asian Journal of Aquatic Sciences Vol. 3 No. 2 (2020): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

This research was conducted in August 2019 to determine the morphometric, density and sex ratio of Telescopium telescopium in Sekodi Village, Bengkalis Regency, Riau Province. Three sampling stations with three transects in each station were surveyed. The results showed that size of T. telescopium in areas far from community settlement were bigger than areas in the fishing boat lane and community settlement : 7.2 cm, 5.8 cm and 5.7 cm. The highest density was in areas community settlement and the lowest in the fishing boat lane. ANOVA test showed that there are no different of density between all the station. Sex ratio showed that T. telescopium was in the balance category (1:1)
THE ANALYSIS OF OIL CONTENT IN SEDIMENT AND COMMUNITY STRUCTURE OF MACROZOOBENTHOS IN BELAWAN WATERS OF MEDAN CITY, NORTH SUMATERA PROVINCE Tanjung, Doli Juni Setia; Amin, Bintal; Nasution, Syafruddin
Asian Journal of Aquatic Sciences Vol. 3 No. 2 (2020): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

This research was conducted in March 2019 to determine the oil content in sediment, it’s community structure of macrozoobenthos and it’s relationship in Belawan Waters of Medan City, North Sumatera. Four sampling stations with five replications in each station were surveyed. The results showed that the average oil content in sediments exceeded the threshold had set by National Academy of Science. Macrozoobenthos found consists of Ocypode quadrata, Scyla serrate, Rotun dicauda, Panaeus sp, Murex tribulus and Nassarius olivaccus. The highest abundance was in Station 3 and the lowest was in Station 2. Diversity index in each station were generally very low. Dominance Index in Station 4 was medium, whilst the other stations were high. Evenness index showed in Station 3 and 4 were in high population, Station 1 was in medium population and Station 2 was in low population. Simple linier regression analyses between oil content in sediment with community structure of macrozoobenthos indicated negative correlation (Y = 10,5-0,0001x, R2 = 0,0004 and r= 0,02) which indicated that the higher the oil content, the lower the macrozoobenthos abundance in sediment.
Co-Authors ', Agusriadi ', Maraini ', Marini ', Maryanto ', Thamrin ', Yulmeirina AA Sudharmawan, AA Ade Mulyana Afrizal Tanjung Ahmad Faisal Daulay Ahmad Saripuddin Alka, M Abdi Alqoriffah Hasanah Alviana, Nur Andre Febriadi Zaryano, Andre Febriadi Andrito, Wahyudi Anggara, Bob Anggi Irfan Hasibuan Anggraini Vista Yulandari Anggraini, Hafidah Novi Anita, Sofia Anton Akbar Nugraha Apriyani Apriyani Aras Mulyadi Ari yanto rama doni Arif Munandar Dalimunthe Ario Parnanda Arta, Fandi Handika Aslam, Atthoriq Habib Harry Aslim Rasyad Asri, Zainul Astuti Marnis Bahari, Sandy Banjarnahor, Novia Bariddah, Sania Bintal Amin Bonawi Sihombing Chairun Nisa Dalimunthe, Arif Munandar David Aditya Simanjuntak Deni Efizon Desmarina, Yuyun Dessy Yoswaty Devano, Rigo Dewi Ariana Dony Ingot Panjaitan Dwi Arya Winata Efriyeldi, Efriyeldi Eka Saputra Elizal, Elizal Elvi Hartati Anggraini Emilia Azizah Fachry Abda El Rahman Fadhil, Yozi Ahmad Fahmia, Rani Fainal Asandi Fandi Handika Arta Fathiya Hanifa Fauzan, M. Fauzi Rizky Harahap Febrinal Syahputra Feliatra Feliatra, Feli Fenti Rozanda Fery, Rony andes Fikri Daryat Fitri, Sri Sumarni Fitriani, Nely Ginting, Daniel Paskah Ginting, Tri Vani Bernadetha Gultom Gultom Hanifah, Lulu Lyana Harahap, Anugrah Setiadari Hasibuan, Ari Permel Helvitri Helvitri Henni Syawal Ikhsan, Miftahul Ilham Apriandi Imanuel, Andrean Nggara Irfandi, Muhammad Adri Irvan Aditya Febrianto Irvina Nurachmi Irwan Effendi Irwan Irwan Iskan Fami Jumaidi Isma, Muhammad Fauzan Jeprin Hasibuan Johen Esaripa Gultom Joko Samiaji Jonathan Habonaran, Jonathan Joni ' Julians, Rizky Fajar Karnila, Rahman Karnila Kasmira, Febriyanti Khairunnisa Gunawan Kiki Harry Wijaya Kristoper Aritonang Kurniawan, Mohd Rizky Kusdiatmoko, Aprizal Laila Langsana Langsana, Laila M. Aqbal Firmandika M. Fauzan M. Hambali M. Hambali Mahendra Mahendra Marya Ulfa Marya Ulfa Masnawita Turnip Masykur Hz Meitasuri, Gevi Melia Lusiana Mirna Kumala Sari Dalimunthe Mubarak Mubarak Mubarak Mubarak Muhammad Aulia Rahman Muhammad Irfan Muhammad Rizky Rinaldi Muhammad Zulkifli, Muhammad Mukhlis Alfarys Musrifin Galib Musrifin Galib Musrifin Ghalib Nababan, Sitty Mey Nabila, Amelia Nabilah Jauharah Nadratul Jamila Nanang Tri Prastyo Noel GM Situmorang Nofri Andri Yulan Nuraini Nuraini Nuraini Nuraini Nurliya ' Nursyirwani, Nursyirwani Octaviaty, Windy Oktavian, Rizki Padli, Fery Parapat, Monica Esra Perie Anugraha Wiguna Pertika, Dinda Prastyo, Nanang Tri Pratama, Muhammad Dandy Syifa Rafi Novendri Kaslan Rahmi Susanti Raja Yogi Prayoga Ramadhan, Muhammad Farizqy Ramadila, Hana Ranti Wulandari Rawati Irmaida Sitorus Remi Fiter Revi Susanti Rifardi Risman Ferdiansyah Ritonga, Rifai Ramadhan Rivaldi, Rahmat Rohul Mazidah Rosyadi Rosyadi Royan Saputra Rozanda, Fenti Rusdi Machrizal Ruth Natalia. S Safitri, Nely Saputra, Royan Sari, Lita Sari, Nova Iman Satria Heriady Shandy, Jacinda Qoidatun Sihaloho, Indra Y P Sihotang, Yula Elawati Sirait, Jhon Lenon Siregar, Ali Mora Hadamean Siregar, Sofyan Siti Komariah Sofia Anita Sofia Anita Sofyan Husein Siregar Sri Wira Rahayu Ningsih Steven Silalahi Suardi ' Sugeng Abriyanto Sukendi Sukendi Syahril Nedi Syaputra, Eldy Syarif, Wilman Tanjung, Afizal Tanjung, Doli Juni Setia Thamrin ' Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Tiara Sri Mulawanti Tri Prawoto Tri Vani Bernadetha Ginting Turnip, masnawita Wafa, Khairuw Walusi, Risma Wijayanto, Doddy William Simamora Winanda, Treza Desri Wulandari, Ranti Yasir Muammar Lubis Yozi Ahmad Fadhil Yusmaida Yusmaida Yusni Ikhwan Yusni Ikhwan Siregar Zulfan Saam Zulkarnain Zulkarnain Zulkifli ' ZULKIFLI ZULKIFLI Zulkifli Zulkifli Zulkifli Zulkifli Zulkifli Zulkifli