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Nematocytes in the Coral Species Acropora formosa on Kasiak Island, Pariaman City, West Sumatera Pratama, Bima; Thamrin, Thamrin; Nursyirwani, Nursyirwani
Journal of Coastal and Ocean Sciences Vol. 6 No. 1 (2025): January 2025
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/jocos.6.01.39-43

Abstract

This research was conducted in January 2024 on Kasiak Island, Pariaman City, West Sumatra Province. This research aims to identify nematocytes found in the body tissue of the Acropora formosa coral. The method used in this research is a survey method with direct observation and sampling in the field. Determination of the type of nematocytes from A. formosa coral was carried out using an Olympus microscope with an objective lens magnification of 10X40 (400) at the Marine Biology Laboratory, Faculty of Fisheries and Marine, Universitas Riau. Of the 25 main types of nematocytes known in the phylum Cnidaria, one type was found in this species. The results of the research show that there is a type of Holotrichous isohiza in the A. formosa coral. This type of nematocyte is thought to be used to attack and kill prey
Prevalence Analysis of Acute Hepatopancreatic Necrosis Disease (AHPND) in Vannamei Shrimp (Litopenaeus vannamei) by PCR Method in Bengkalis District Ayunda, Fadhilah Putri; Feliatra, Feli; Thamrin, Thamrin; Muhson, Nanang
Journal of Coastal and Ocean Sciences Vol. 4 No. 3 (2023): 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

Vannamei shrimp is one of the shrimps that are being cultivated in Indonesia because it has superior quality compared to other types of shrimp. Cultivation activities cannot be separated from disease attacks that attack cultured commodities. One of the diseases that attack vannamei shrimp is Acute Hepatopancreatic Necrosis Disease (AHPND). The disease is caused by Vibrio parahaemolyticus bacterial infection (VpAHPND) which produces toxins and causes death in shrimp with mortality reaching 100%. Therefore, it is necessary to conduct research or early detection in the aquaculture area of Bengkalis Regency using the PCR (Polymerase Chain Reaction) method. The method used is the survey method. This research was conducted from March to April 2023. The results of this study are the prevalence of AHPND (Acute Hepatopancreatic Necrosis Disease) in vannamei shrimp (Litopenaeus vannamei) in the Bengkalis Regency Aquaculture area is 0% with the category of infection never. AHPND examination by PCR method using AP4 primer measuring 230 bp showed that vannamei shrimp samples from Bengkalis District, Bantan District, and Bukit Batu District of Bengkalis Regency were negative for AHPND. The morphological condition of vannamei shrimp from the three research locations did not show any clinical symptoms of shrimp infected with AHPND.
Condition of Coral Reefs and Abundance of Coral Fishes of the Chaetodontidae Family in the Waters of Sironjong Gadang Island, Pesisir Selatan District, West Sumatra Province Satyawira, Immanuel Grahan Deyon; Thamrin, Thamrin; Mubarak, Mubarak
Journal of Coastal and Ocean Sciences Vol. 5 No. 1 (2024): January
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/jocos.5.1.7-16

Abstract

Sironjong Gadang Island is one of the islands in the Mandeh Tourism area in Pesisir Selatan Regency, West Sumatra, Indonesia. One of the ecosystems affected by tourism activities is coral reefs. Monitoring the coral reefs' condition and the abundance of coral fish in the Chaetdontidae family is carried out to find out this. This research uses survey research methods. The temperature measurement results obtained an average of 30.2oC, current speed measurements received an average of 0.12 m/s, salinity measurements obtained an average of 30 ppt, and brightness measurements show that the brightness of these waters is 9 m. Tide measurements in the waters of Sironjong Gadang Island, carried out on March 7–8, 2023, are double daily tides (semi diurnal tide). Then, the results from the coral reef cover of Sironjong Gadang Island waters obtained a percentage ranging from 2.34 - 12.83%, with an average rate of live coral reef cover of 5.96%, which is included in the poor category. Furthermore, the results at each research station in the waters of Sironjong Gadang Island showed that 54 coralfish individuals were found, with the number of coralfish at each depth ranging from 4 - 10 individuals. The most common types of coral fish are species. Acuminate had 18 individuals; the fewest types of coral fish found were Chaetodon trifasciatus and C. tristichous, each numbering two individuals. There is a solid relationship between live coral reef cover and the abundance of coral fish in the Chaetodontidae family, where live coral reef cover influences the plenty of coral fish by 61.11%, which means that the higher the percentage of live coral cover, the higher the value of coral fish abundance.
Correlation between Coral Reef Cover Condition and the Abundance of Megabenthos on Setan Island, West Sumatra Siringoringo, Frido S.; Mulyadi, Aras; Thamrin, Thamrin
Journal of Coastal and Ocean Sciences Vol. 5 No. 1 (2024): January
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/jocos.5.1.70-76

Abstract

In the coral reef ecosystem, there is a food source for small fish, which are prey for various kinds of associated biota; one of the biota that lives in the coral reef ecosystem is megabenthos. Megabenthos is influenced by the quality of the coral reef ecosystem, where if conditions are good, the coral will have a greater chance of high megabenthos diversity. This research was carried out in March 2023 in Setan Island, West Sumatra. This research analyzes the relationship between coral reef conditions and megabenthos abundance. The method used in this research is a survey method. Observations of coral reef cover were carried out using the Underwater Photo Transect (UPT) method, and megabenthos abundance was measured using the Benthos Belt Transect (BBT) method. Observations were carried out at four stations (3 and 6 m deep) with a transect length of 50 m. Based on the average value of the percentage of coral reef cover, it is still categorized as being in poor condition, namely 18.87%. There is a relationship between the percentage of live coral reef cover and the abundance of megabenthos with a percentage of 55.27%, with the types of megabenthos clams (Tridacna sp), sea cucumbers (Holothuria sp), snails (Trochus sp), lobsters (Panulirus sp), fur pigs (Diadema sp), snails (Drupella sp), and starfish (Acanthasper sp).
Diversity and Distribution Patterns of Macrozoobenthos in the Intertidal Zone of Pasumpahan Island, Padang City, West Sumatra Province Utari, Vannesa; Thamrin, Thamrin; Tanjung, Afrizal
Journal of Coastal and Ocean Sciences Vol. 4 No. 3 (2023): 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

Macrozoobenthos are organisms that live sedentary (sessile) and have varying adaptability to environmental conditions. In addition, the level of diversity found in the aquatic environment can be used as an indicator of pollution. The purpose of this study was to determine the type, abundance, diversity, and distribution pattern of macrozoobenthos in the intertidal zone. This research was conducted in the waters of Pasumpahan Island. The method used in this study was a survey method, while sampling was carried out using three stations and each station consisted of 3 transects and three sub-zones using a 1m x 1m quadrant map. The results of this study found that the abundance value at each station was 4.22-5.78 ind/m2, while the abundance in the sub-zone ranged from 3.00-7.67 ind/m2, the diversity index (H') at the study sites ranged from 1.65-2.31, which means 1.0 ≤H' < 3.0 and the diversity of macrozoobenthos at the study site was categorized as moderate. The distribution pattern (Id) of macrozoobenthos at locations was clustered with a value of 1.05-1.28. The results of the One Way ANOVA test between stations obtained a value of 0.001 where p <0.05, which means H0 was rejected and there was a significant difference between the 3 stations, followed by the LSD test to find out which average between stations was the most different real
ANALYSIS OF BLUE ECONOMY STRATEGY IN MAINTAINING CORAL REEF BALANCE: A CASE STUDY IN AMED WATERS, BALI Matondang, Ridwan Rafsyanjani; Efriyeldi, Efriyeldi; Thamrin, Thamrin
Asian Journal of Aquatic Sciences Vol. 8 No. 1 (2025): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.1.7-19

Abstract

Amed Waters, Bali, is one area that utilizes coral reefs in economic development. However, climate change, human activities and other factors have threatened the condition of coral reefs in Amed Waters. This study aims to determine the condition and social and economic potential of coral reefs and examine the appropriate blue economy strategy in maintaining the balance of coral reefs in Amed Waters, Bali. This research was conducted in September-November 2024. This research used direct field data collection methods such as Underwater Photo Transect (UPT), interviews and the Analytical Hierarchy Process (AHP). Based on the percentage of coral cover and the interviews' results, the results showed that coral reefs in Amed Waters can be classified as poorly damaged, so conservation efforts and sustainable management are needed to maintain the balance of coral reefs. Coral reefs have social and economic potential in the fisheries sector, with a fishing group of 19 people and marine tourism in the form of diving and snorkelling. The main focus of community economic development is the tourism sector. The blue economy strategy that can be applied in the conservation of coral reefs in Amed Waters, Bali, focuses on environmental aspects of coral reef health, economic aspects of increasing community income, and social aspects of community participation
Comparison of Macrozoobenthos Community Structure in Reclaimed and Natural Beaches in Padang City, West Sumatra Helda, Helda; Tanjung, Afrizal; Thamrin, Thamrin
Jurnal Perikanan dan Kelautan Vol. 29 No. 3 (2024): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.3.334-342

Abstract

dang City is one of the cities with a long coastline. The Padang City government has made many reforms to manage the beach area as a tourist attraction. This research aimed to determine the comparison of macrozoobenthos community structure, including species composition, species abundance, relative abundance, diversity index, similarity index, dominance index, and distribution patterns in the reclaimed and natural beaches of Padang City, West Sumatra Province. The method used was purposive sampling with sample collection using the transect method. The results of this study indicate that the water quality in Padang City, West Sumatra, is sufficiently good to support macrozoobenthos life. The highest species abundance of macrozoobenthos was found at the Reclamation Beach Station. The macrozoobenthos species found belong to 2 classes: Gastropoda and Crustacea. The Gastropoda class consists of 4 species: Babylonia spirata, Pila ampullacea, Pila occidentalis, and Nerita fulgurans, while from the Crustacea class, three species were found: Ashtoret lunaris, Hemigrapsus takanoi, and Emerita sp. Meanwhile, the lowest abundance was found at the Natural Beach Station, where the species belonging to the Crustacea class, specifically H.takanoi, was found. The species diversity of macrozoobenthos at the Natural Beach Station is considered low but moderate at the Reclamation Beach Station. Similarity at the Natural Beach Station is low, while at the Reclamation Beach Station, it is high. Additionally, there is a dominant species at the Natural Beach Station, whereas no dominant species were found at the Reclamation Beach Station. The distribution pattern of macrozoobenthos in the coastal waters of Padang City is categorized as clustered distribution.
ANALYSIS OF REGULATIONS FOR DETERMINING THE LIMITED PROTECTION STATUS OF TERUBUK FISH (TENUALOSA MACRURA) PERMEN-KP NO. 210 OF 2023 REFERRING TO NO. 58/PERMEN-KP/2020 CONCERNING CAPTURE FISHERIES BUSINESSES Thamrin, Thamrin; Harahap, Irawan; Oktapani, Silm
Asian Journal of Aquatic Sciences Vol. 8 No. 1 (2025): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.1.33-40

Abstract

This research aims to determine the form of analysis, as well as determine the obstacles and constraints in implementing the Decree of the Minister of Maritime Affairs and Fisheries of the Republic of Indonesia Number: PERMEN-KP No. 210 of 2023 if guided by PERMEN-KP No. 58 of 2020 concerning capture fisheries businesses. In scientific research using a qualitative approach with an interpretative normative paradigm, the available theories used for research are constructed as an imperfect building, and this research is descriptive. In implementing the Decree of the Minister of Maritime Affairs and Fisheries of the Republic of Indonesia Number: PERMEN-KP No. 210 of 2023 concerning Limited Protection of Terubuk Fish (Tenualosa macrura) has not been implemented in the socialization, sea patrol and monitoring activities carried out by the Government, Indonesian National Army, Police and community monitoring groups. If PERMEN-KP No. 210 of 2023 is guided by PERMEN-KP No. 58 of 2020 concerning capture fisheries businesses, there will be discrepancies between the rules made and the rules applied in the field. The effectiveness of the implementation of the Decree of the Minister of Maritime Affairs and Fisheries of the Republic of Indonesia on the availability of fish resources legally and seen from fishermen's catches has increased and is quite effective, but it is not yet significant because sanctions for violations have not been realized and the obstacles and obstacles to the implementation of the Decree when referring to PERMEN-KP No. 58 of 2020 should not be needed. Fishermen who have small boats (< 5 gross tonnage) are allowed to catch terubuk (Tenualosa macrura) in conservation areas following PERMEN – KP No. 58 of 2020.
DISTRIBUTION AND DIVERSITY OF BIVALVIANS IN THE INTERTIDAL ZONE REGION OF VILLAGE ANAK SETATAH, KEPULAUAN MERANTI REGENCY Wafa, Khairuw; Thamrin, Thamrin; Nasution, Syafruddin
Asian Journal of Aquatic Sciences Vol. 6 No. 3 (2023): 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 from May to June 2022 to know the species, abundance, diversity, and distribution patterns in the tidal areas of Anak Setatah Village. As supporting data in this study, several environmental parameters were also measured, including water quality, sediment type, and sediment organic matter content. The study method was a survey method, where sampling used the quadrat transect method. The results found that there were three species of bivalves. Where the abundance among stations ranged from 0.49 to 0.74 and/m2. The value of the species diversity index ranged from 0.91 to 1.41, which was classified as moderate, and the matter of the distribution pattern ranged from 6.28 to 9.71 with a clumped distribution pattern.
MANGROVE VEGETATION COMMUNITY STRUCTURE IN PONGKAR VILLAGE, TEBING DISTRICT, KARIMUN REGENCY, KEPULAUAN RIAU PROVINCE Hadiyatma, Patwa; Efriyeldi, Efriyeldi; Thamrin, Thamrin
Asian Journal of Aquatic Sciences Vol. 6 No. 2 (2023): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Mangrove is a type of vegetation that grows on muddy soil in tidal areas, around the river estuary, and in tropical coastal areas. To support the success of mangrove forest management, it is important to pay attention to the factors that affect the growth of mangroves. This research was conducted in October – December 2021. The purpose of the study was to determine the type, density value, frequency, and cover of mangrove vegetation and its importance value index in Pongkar Village, Karimun Regency, Kepulauan Riau Province, using survey methods and sampling and measuring environmental quality parameters waters in the field. Based on the result of the research, the types of mangrove vegetation found consisted of 6 species, namely Avicennia alba, Avicennia marina, Rhizophora apiculata, Rhizophora mucronata, Sonneratia alba, and Lumnitzera littorea. The highest density of mangrove vegetation in the Pongkar Village area is near the Military District Command (Station II) housing with a total density of 1822.22 ind/ha. The highest relative frequency value of mangroves is found in the Pelambung area of ​​A.alba species with a value of 40%. The highest relative dominance value of mangroves was found at station II of S.alba species with a value of 63.12%. Meanwhile, the highest important value index was found at station II for S.alba species with a value of 152.01% and the lowest important value index was L.littorea which was found at station I with a value of 12.69%.
Co-Authors . Zulfan A.A. Ketut Agung Cahyawan W AA Sudharmawan, AA Achmad Noerkhaerin Putra Adiyatma, Patwa Adni, Nailul Adriana, Alysa Adriani Susanty Afrizal Tanjung Agustiarmi, Winda Agustin, R. Sandra Albert Albert Ali Fikri Hasibuan Alit Hindri Yani Alpian Ambiyar, Ambiyar Anak Agung Istri Sri Wiadnyani Ananda, Nahdya Nasri Andi Taufiq Umar Andikha, Muhammad Imam Anori, Sartika Apdillah, Doni Aprinata, Rio Aras Mulyadi Ariusni Ariusni Ariza Julia Paulina Artha, Dwirani Puspa Asrizal Ayunda, Fadhilah Putri Belilasari, Belilasari Bilhuda, Ulwatul Bintal Amin Can, Hafez Adefl Cantika, Aisyah Chandra, Randy Brilliant Clara, Dina Harven Darmi, Darmi Darwin Yunus Delsina Faiza Delvi, Kasma Muria Deni Efizon Desi Yoswati, Desi Dessy Yoswaty Devia Febrina Dewita Dewita Dirmaningsih, Septi Djohan, Deva Dodi Irwan Siregar Driani, Gema Illahi Efriyeldi, Efriyeldi Eko Wahyu Nugrahadi Elizal, Elizal Fadli, Mohamad Faiza, Deslina Fakri, Rangga Zaumil Farma, Elmi Aulia Fatmawati, Riska Febrianda, Farid Feliatra, Feli Ferdiansyah, Andika Fitri, Nurlaila Fitri, Nurlaili Fitria Arifin, Elfira Fitriana, Riza Gafnie, Ghassani Razan Ginting, Twinta Dellanov Hadiyatma, Patwa Hamidi, Wilzam Harahap, Fitri Annisa Harahap, Irawan Hasanah, Afifah Nur Helda Helda Hidayat, Aga Azmi Husnawati Husnawati Ida Ayu Putu Sri Widnyani Ifdil Ifdil IKA PUSPA SATRIANNY Ince Raden Irvina Nurachmi irwan chairudin, irwan Irwan Effendi Irwan Limbong Izrawati, Izrawati Jamaludin . Joko Samiaji Julisa, Ulfania Julisa, Ulfilia Kuandi Chandra Kurniawan, Rika La Rianda Lieng, Lieng Lovanda, Andi Luthfiani, Firda M. Delpopi Maemunah Manik, Pilipus Fiter Matondang, Ridwan Rafsyanjani Meiriza, Mica Siar Meridona, Meridona Mirad, Awis Mohd. Hatta, Mohd. Mubarak Mubarak Muchlis Muchlis Muhammad Edisar Muhammad Natsir Kholis Muhammad Rusdi MUHAMMAD YUSUF Muhson, Nanang Munajat Munajat, Munajat Murad, Auda Nabila Tasrif NANDA PRATAMA Naserd, Yolanda Febriani Nasib Ngazizah, Yeti Nur Nisa, Rahmiyatin Nofi Yendri Sudiar Nofrizal Nofrizal Nuraini Nuraini Nuri Aslami Nursamsi, Nursamsi Nursamsi, Nursamsi Nursyirwani, Nursyirwani Oktamelani, Aulia Oktapani, Silm Pakhrur Razi Pambudi, Bagas Ariya Paniska, Almaarif Panjaitan, Erwin Setiawan Pasha, Muhammad Fermi Prasadja Ricardianto, Prasadja Prasiska, Yulia Pratama, Bima Pratama, Farrel Primadi Candra Susanto Putri, Yolandha RAHAYU, IFNALIA Rahma Lisya, Sri Rahman, Ana Septia Rahmiati Rahmiati Ramadhan Lubis, Rafi Ramses Firdaus, Ramses Ratih Amelia, Ratih Rayhan Anugerah Hadikusuma Rery Novio Ridwan Manda Putra Rifardi Rizki, Nida Robin Robin, Robin Rohim, Mustofa Romie Jhonnerie Rosmayani, Rosmayani Saidun Hutasuhut Sandi, Widya Ari Sari, Fifian Permata Sari, Seftika Sari, Yollit Permata Satriany, Ika Puspa Satyawira, Immanuel Grahan Deyon Sawitri, Nadia Shintya, Ellysa Siahaan, Vani Oktavia Sibarani, Choms Gary Ganda Tua Sidauruk, Shanty W Silaban, Santi Maria Simatupang, Wakhinuddin Siringo-ringo, Irpan suriadi Siringoringo, Frido S. Siti Aisyah Siti Fatimah Sitohang, Margaretha Sitohang, Margaretha Sri Ulina Siwi, Menik Kurnia Sofya, Rani Sofyan Husein Siregar Subarkah, Irham Sudjianto Sudjianto, Sudjianto Suharianto , Joko Suheri, Wira Noviana Sukendi Sukendi Sumarno . Suryadi, Gusnan Susanto, Riki Suyanto Suyanto Syafruddin Nasution Syahrul Syahrul Syaiful . Syoffnelli, Syoffnelli Syoffnelli, Syoffnelli Tamba, Iventura Tawa, Hasbi Tri Kurniawati, Tri Triani, Mike Tua Sibarani, Choms Gary Ganda ULWAN, NASEH Utama Ritonga, Fajar Utari, Vannesa Vivin Seygita, Vivin Wafa, Khairuw Wahyu, Rifkhan Wahyudi, Rido Wardana, Rangga Wily Julitawaty, Wily Yasin, Robiha Yeni, Isra Yohandri Bow Yosefa, Bella Yosi Pahala, Yosi Yuliana Yuliana Yusni Ikhwan Siregar Zhonada, Anggun Zulfikar, Andi Zulkifli Zulkifli