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Muftiadi, M. Rizza
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science

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Karakteristik Morfologi Dan Sebaran Lamun Halophila spinulosa (R.Br.) Aschers. Di Kepulauan Bangka Belitung, Indonesia Okto Supratman; Adi, Wahyu; Muftiadi, M. Rizza; Henri, Henri; Pamungkas, Aditya; Supratman, Okto
Journal of Tropical Marine Science Vol 6 No 2 (2023): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v6i2.4598

Abstract

Halophila spinulosa (R. Br.) Aschers is a type of seagrass found in Indonesia with limited distribution. One of the areas where Halophila spinulosa is found in the Bangka Belitung Islands. Although found in the Bangka Belitung Islands, information on this type of seagrass is very limited. The objectives of the study were to identify morphological characters, identify types of seagrass associated with Halophila spinulosa and present a distribution map of Halophila spinulosa in the Bangka Belitung Islands. The research method for seagrass morphological characters is based on field data in the form of photographs, then compared with identification sources from books and research journals. The seagrass distribution map was determined based on a literature search from 2015 to 2022 and then a map was made using Arcmap 10.8 software. The results of the research on the morphological characters of Halophila spinulosa species can be seen from the shape of the roots, rhizomes, leaves, flowers and fruit. This type of root form is unbranched root (simple root) and each node on the rhizome has one root. Compound leaves are elliptical in shape. These leaves are paired, in opposite positions, located in one plane, arranged obliquely around the stem and have serrated leaf tips. The distribution of Halophila spinulosa seagrass in the Bangka Belitung Islands is spread in the areas of Central Bangka Regency, South Bangka Regency and Belitung Regency. Halophila spinulosa species are often found mixed (associated) with seagrass species Halodule uninervis and Oceana serrulata.
The Abundance and Distribution Patterns of Asiatic Hard Clam (Meretrix meretrix) in The Pukan Beach Coastal Area, Bangka Regency Saputri, Nova; Adibrata, Sudirman; Muftiadi, M. Rizza; Arizona, M. Oka; Bywater, Aaron; Yilmaz, Muhammed Furkan
Coastal and Marine Journal Vol. 1 No. 2 (2023)
Publisher : Yayasan Serumpun Karang Konservasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61548/cmj.v1i2.11

Abstract

The dynamics and diversity of bivalve resources can be influenced by various human activities at the beach. At Pukan Beach, Activities such as harvesting Asiatic Hard Clam (Meretrix meretrix), local community tin mining, shrimp pond farming, and inputs of organic materials from surrounding rivers and freshwater sources can affect the presence of Asiatic Hard Clam in its habitat. This research aims to analyze the abundance and distribution patterns Asiatic Hard Clam and the environmental factors influencing them. Data collection was conducted from February to April 2023 at Pukan Beach, Bangka Regency, using a systematic method and 2 x 2m2 quadrats consisting of 4 stations with a total of 48 sampling plots. The observed environmental parameters included water temperature, salinity, water pH, substrate, dissolved oxygen (DO), calculation of total organic matter (BOT), and soil pH, which were then analyzed using principal component analysis (PCA).The research findings showed that the lowest abundance values were found at Station 4, while the highest were at Station 3. The average clam abundance at Pukan Beach ranged from 0.03 to 0.22 ind.m-2, indicating a minimum or low abundance level, with an average value of Ip was 0.05, suggesting a clustered distribution pattern. Based on the principal component analysis (PCA), the environmental parameters that most influenced clam abundance were BOD and DO, and the most suitable habitat preference for the clams was identified at Station 4.It is recommended that clam harvesting be based on the size of the shell's length and width, specifically during the adult or mature stage when individuals are larger than 3.10 – 4.00 cm. Smaller clams should be returned to their natural habitat to allow for growth and reproduction.
The Abundance Megabentos in Coral Reef Ecosystems in the Waters of Gelasa Island, Central Bangka Regency. Okto Supratman; Adriyansyah, Nico; Supratman, Okto; Muftiadi, M. Rizza; Abdullah, Maizah Mohd
Coastal and Marine Journal Vol. 1 No. 2 (2023)
Publisher : Yayasan Serumpun Karang Konservasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61548/cmj.v1i2.15

Abstract

Megabenthos is a group of fauna that inhabits the benthic zone, which is the bottom or substrate of aquatic environments (both infauna and epifauna), with a body size exceeding 10 mm (1 cm). This study aims to analyze the abundance of megabenthos in the coral reef ecosystem, examine the relationship between megabenthos abundance and the physical and chemical parameters of the aquatic environment in the coral reef ecosystem, and analyze the relationship between megabenthos abundance and coral life forms in the waters of Gelasa Island. This research was conducted in September 2022 in the waters of Gelasa Island. Megabenthos data were collected using the Bentos Belt Transect (BBT) method, while coral data were collected using the Underwater Photo Transect (UPT) method. The study identified 10 species of megabenthos in the coral reef ecosystem of Gelasa Island. The species found at the research site include Diadema setosum, Diadema antillarium, Echinothrix calamaris, Drupella cornus, Drupella rugosa, Trochus conus, Tectus pyramis, Tridacna squamosa, Tridacna crocea, and Acanthaster planci. The percentage of live coral cover at the research site ranged from 26.60% to 71.00%. Megabenthos abundance was analyzed using Principal Component Analysis (PCA) to examine the relationship between megabenthos and the physical and chemical parameters of the aquatic environment and the relationship between megabenthos and coral life forms.
Analysis of Coral Reef Conditions in the Waters of Panjang Island, Central Bangka Regency Evitulistiono, Rizki; Kurniawan; Muftiadi, M. Rizza; Alghamdi, Munirah Aziz Abdulaziz
Coastal and Marine Journal Vol. 1 No. 2 (2023)
Publisher : Yayasan Serumpun Karang Konservasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61548/cmj.v1i2.18

Abstract

  Coral reefs are organisms that live at the bottom of the water and take the form of sturdy limestone formations capable of withstanding the force of ocean waves. Ecologically, coral reefs serve as habitats where various animal and plant organisms seek food and shelter. This research aims to analyze the coral reef ecosystem conditions in the waters of Panjang Island and provide recommendations for sustainable management of marine biodiversity in the waters of Panjang Island, Central Bangka Regency. The Underwater Photo Transect (UPT) method involves underwater photography using a digital or regular digital camera equipped with a waterproof housing to withstand seawater exposure. The research results indicate that the percentage of live coral cover in the waters of Panjang Island ranges from 70.07% to 14.07%, categorizing it as fair to poor according to the Minister of Environment Decree No. 4 of 2001 on the Standard for Coral Reef Damage. Fourteen coral growth forms were identified in the waters of Panjang Island, belonging to 17 coral genera. Recommendations for managing marine resources on Panjang Island include sustainable tourism development. Environmentally based tourism development can serve as a solution for sustainably utilizing coral reefs and promoting improving coastal and fisheries management based on Marine Conservation Areas.
The Reef Fish Community Structure in Penyusuk Waters, Bangka Regency, Indonesia (Case Study of Artificial Reef in PT. Artha Cipta Langgeng) Hafizah, Adisti; Adibrata, Sudirman; Muftiadi, M. Rizza; Balisco, Rodulf Anthony T.
Coastal and Marine Journal Vol. 1 No. 2 (2023)
Publisher : Yayasan Serumpun Karang Konservasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61548/cmj.v1i2.19

Abstract

Reef fishes are important components of a healthy coral ecosystem. However, when coral reefs are degraded, reef fishes also lose their habitat resulting in a decline in reef fish production and sustainable livelihood for the communities depending on it. In this study, we determined the status of reef fish communities in an artificial reef at PT Artha Cipta Langgeng in the Penyusuk waters of Bangka Regency, Indonesia. Data on reef fish communities were collected using the underwater visual census (UVC) method, including in situ and ex-situ environmental parameters. A total of 2,987 individuals belonging to 12 reef fish species and five families were recorded across three stations. The abundance of reef fish ranges from 45 to 60 ind/m², categorized as highly abundant. Diversity, evenness, and dominance indices were calculated at  1.18-1.49, 0.56-0.65, and 0.26 -0.36, respectively which are categorized as low to moderate. The environmental parameters in the artificial reef are still within the standard limit for a reef ecosystem. The study emphasizes the importance of artificial reefs as an alternative to a degraded coral reef ecosystem in supporting the thriving existence of reef fishes in the Penyusuk waters.
The Macrozoobenthos Community Structure on Artificial Reef at Penyusuk Marine, Bangka Regency Okto Supratman; Aldia, Dia; Supratman, Okto; Muftiadi, M. Rizza
Coastal and Marine Journal Vol. 2 No. 1 (2024)
Publisher : Yayasan Serumpun Karang Konservasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61548/cmj.v2i1.13

Abstract

Makrozoobenthos are all types of sedentary organisms or move freely whose habitat’s in the bottom substrate of waters with a body size of more than equal to 0.5 mm. Benthos have a very important role in waters where macrozoobenthos communities must remain balanced so that aquatic ecosystems are balanced. This study aims to determine the type of macrozoobenthos, the abundance of macrozoobenthos and the structure of macrozoobenthos communities on artificial reefs in Penyusuk Marine, Bangka Regency which was sunk by PT. Arta Cipta Langgeng. Data collection will be carried out in May 2023 at an artificial reef in Penyusuk Marine, Bangka Regency. The determination of the research location point was carried out by purposive sampling and macrozoobenthos data collection using road sampling techniques and free hand picking methods. Measurement of environmental parameters was carried out in situ and ex situ as well as data analysis using Principal Component Analysis (PCA). The results of the study found 32 types of macrozoobenthos with a total of 2,745 individuals found at the three observation stations. The abundance obtained ranged from 46,04 ind/m2 – 49,01 ind/m2. The diversity value ranges from 0,60 – 0,87 so that was categorized as low, the uniformity value ranges from 0,19 – 0,27 as low was categorized and the dominance value ranges from 0,72 – 0,82 was high categorized.
The Density of Megabentos in Coral Reef Ecosystems in The Waters of Pongok Island, South Bangka District Ayu, Citra; Adibrata, Sudirman; Muftiadi, M. Rizza
Coastal and Marine Journal Vol. 2 No. 1 (2024)
Publisher : Yayasan Serumpun Karang Konservasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61548/cmj.v2i1.22

Abstract

Biota plays a role in reef coral is megabenthos . Megabenthos is a large benthic biota more of 1cm and has Power adaptation to condition environment . Benthic biota usually found at the bottom waters like ecosystem reef coral and fields seagrass . Waters Island Pongok own diversity biological abundant sea _ so that made source search society in general working as a fisherman with method netting, fishing and doing arrest with another way . Apart from that, some fisherman Still use tool catch those who don't friendly environment like use bomb and shoot For catching fish. Megabenthos data collection use method Benthos Belt Transect and reef data collection coral use method Underwater Photo Transect . Research results in Water Island Pongok 12 species were found of the 6 families found in the waters Island Pongok . Density value megabenthos found _ range between 0.007-1.257 ( ind /m²) which is dominated by species Diadem setosum with average value _ amounted to 0.688 ( ind /m²), whereas density Lowest is in the species Drupella cornus , Linckia multifora and Trochus niloticus with the average value density 0.002 ( ind /m²). Percentage cover reef coral live on the Island Pongok ranges between 28.67%-63.87% in Medium to Good category . Analysis results Principal Component Analysis (PCA) was obtained results density highest that is Correlated diadema _ with temperature with mark the correlation is 1,000 and temperature namely 0.825, next clams correlated with pH and value the correlation is 0.465 and pH 0.982. From these two biota categorized as correlated perfect with physical and chemical parameters waters. Connection density megabenthos with form growth reef coral density megabenthos highest at the location study is species Diadem sp . which is correlated tall with Dead Coral Algae (DCA) with mark  the correlation is 0.998. Density megabenthos Lowest is Correlated Drupella _  tall with Dead Coral Algae (DCA) with mark the correlation is 0.998, and Linckia multifora correlated  tall with Coral Foliose (CF) with mark the correlation is 0.925.
The Coral Reef Health Disturbance in The Waters of Pongok Island, South Bangka District Firmansyah, Muhammad; Adibrata, Sudirman; Muftiadi, M. Rizza; Perangin-angin, Robet
Coastal and Marine Journal Vol. 2 No. 1 (2024)
Publisher : Yayasan Serumpun Karang Konservasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61548/cmj.v2i1.24

Abstract

This research aims to analyze coral reef cover and analyze coral reef health problems. This research was conducted in October 2023 in the waters of Pongok Island. Coral reef cover data collection using the method of Underwater Photo Transect (UPT) and data collection on the distribution of coral health disorders was taken using the belt transect method (belt transect). The results of the research showed that the percentage of coral reef cover in Pongok Island waters ranged from 28.67% - 63.87% which was categorized as Medium to Good. Coral reef health problems found at the research location in Pongok Island waters are Bleaching (B), Sedimentation damage (SD), Pigmentation response (PR), growth anomalies (GA), and crown of thorns starfish (CoTS). Sedimentation damage is the highest prevalence in the research location with 3.42%, then pigmentation response (PR) with a total of 0.48%, Crown of thorns starfish (CoTS) 0,05%, Bleaching (B) 0,04%, and Growth anomalies (GA) with an amount of 0.01%.
The Study of Coral Recruitment on Artificial Reefs in The Coastal Waters of Penyusuk, Bangka District Okto Supratman; Maulana, Eka; Supratman, Okto; Muftiadi, M. Rizza
Coastal and Marine Journal Vol. 2 No. 1 (2024)
Publisher : Yayasan Serumpun Karang Konservasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61548/cmj.v2i1.25

Abstract

Artificial coral reefs are one of the efforts to rehabilitate resources and serve as a nursery area, providing a permanent new habitat for sessile biota and maintaining the balance of the food chain cycle. This study aims to identify the types of coral attached to artificial reefs and analyze the coral density value on artificial reefs in the waters of Penyusuk Belinyu, Bangka District. Data collection was conducted by counting the number of individuals of coral genera and their sizes visible through the visual census method. The corals found consist of 3 families and 3 genera of coral: the Subergorgiidae family with the Subergorgia genus, the Carijoidae family with the Carijoa genus, and the Faviidae family with the Favia genus, with a total of 136 individuals found in three observation stations. The coral density values ​​for the 3 stations range between; Subergorgia (0.104-0.677 ind/m2), Carijoa (0.677-1.563 ind/m2), and Favia (0.781-1.146 ind/m2). Environmental parameters affecting coral larval settlement include water flow rate, Total Suspended Solids (TSS), temperature, salinity, brightness, and pH.
Struktur Komunitas Dan Status Konservasi Ikan Hasil Tangkapan Dengan Alat Tangkap Sero DiDesa Tanjung Binga Kabupaten Belitung Lonameta, Lonameta; Gustomi, Andi; Muftiadi, M. Rizza; Meta, lona
Journal of Tropical Marine Science Vol 8 No 2 (2025): Journal of Tropical Marine Science
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jour.trop.mar.sci.v18i2.6944

Abstract

Penelitian ini bertujuan untuk mengetahui komposisi jenis, keanekaragaman, keseragaman, dominansi dan status konservasi pada Sero. Penelitian ini dilaksanakan pada bulan Januari 2024 di Pantai Secupak Desa Tanjung Binga. Hasil penelitian ditemukan yaitu 2.257 individu terdapat 53 spesies ikan dan 37 famili. Komposisi jenis per stasiun tertinggi di stasiun 1 nilainya 8,73% yaitu Selar crumenophthalmus, Sardinella albella, dan Apogonichthyoides melas. Stasiun 2 nilainya 10,87% yaitu Selar crumenophthalmus dan stasiun 3 nilainya 19,41% yaitu Siganus canaliculatus. Hasil penelitian komposisi jenis secara keseluruhan tertinggi yaitu Siganus canaliculatus nilainya 13,07% dan 295 individu. Komposisi jenis terendah nilainya 0,27% dan 6 individu, yaitu Echeneis naucrates dan Carangoides malabaricus. Keanekaragaman jenis ikan kategori Sedang, keseragaman kategori Rendah dan dominansi kategori Rendah. Status konservasi ikan yaitu kategori IUCN Redlist seluruh status berisiko rendah, kekurangan data dan Tidak dievaluasi. CITES seluruh ikan status Tidak Dievaluasi dan Permen KP No 1 Tahun 2021 seluruh jenis ikan status Tidak dievaluasi.
Co-Authors Abdullah, Maizah Mohd Adibrata, Sudirman Adriyansyah, Nico Aldia, Dia Alghamdi, Munirah Aziz Abdulaziz Andi Gustomi Arizona, M. Oka Balisco, Rodulf Anthony T. Bywater, Aaron Citra Ayu, Citra Evitulistiono, Rizki Ferizal, Jemi FERIZAL1, JEMI Hafizah, Adisti Henri Henri, Henri Hidayat, Syahrin Imron Hidayatullah, Muhammad Fajar Kurniawan Lonameta, Lonameta Maulana, Eka Maulana, Ervan Meta, lona Muhammad Firmansyah, Muhammad Okto Supratman Pamungkas, Aditya Perangin-angin, Robet Saputri, Nova Wahyu Adi Yilmaz, Muhammed Furkan