BACKGROUND AND OBJECTIVES: Choosing a location for mariculture is very important because it affects water quality, while problems that affect cultivation and the environment can be avoided by choosing the right location. The objective of this study is to develop a methodological strategy for integrating and analyzing spatial data, which will facilitate the identification of optimal locations for mariculture. In this context, the ecosystem approach to mariculture is analyzed with an emphasis on evaluating water quality conditions and determining primary productivity values.METHODS: Water quality parameter data was analyzed using principal component analysis, values, and distribution of primary productivity using the kriging interpolation method using geographic information system. Spatial analysis employing Geographic Information System applications is used to evaluate the appropriateness of locations for mariculture.FINDINGS: The distribution pattern of primary productivity is strongly influenced by the distribution of phytoplankton and the highest concentration values are located in coastal waters and small islands. The analysis identified three primary components that account for 79.64 percent of the results. The most influential factors include suspended particulate matters, nitrate, temperature, salinity, ammonia, current, and water transparency. According to the study results, the principal component values indicate that the most affected regions by pollutant pressure are agricultural lands that drain into rivers and watersheds, along with coastal residential neighborhoods.CONCLUSION: The status of water quality is the main limiting factor in determining the location of mariculture, therefore it is necessary to relocate existing mariculture, improve agricultural cultivation techniques, and/or regulate the use of pesticides that not carried out during the rainy season. These findings may assist the appropriate authorities in the selection and oversight of mariculture sites. The innovative aspect of this study lies in its focus on adaptive management of sustainable marine cultivation, designed to align with regional conditions and promote ecological health alongside the socio-economic prosperity of local communities.

Intensive technology Pacific white shrimp (Litopenaeus vannamei) culture has been applied in Bulukumba Regency, South Sulawesi Province, but information on the performance of Pacific white shrimp culture and the land characteristics or environment of the pond has not yet been obtained. The research purposes are to find out the performance and the land characteristics or environment of Pacific white shrimp culture intensive technology to serve as a basis for determining the culture development. Five transects perpendicular to the shoreline and three transects parallel to the coastline, or 15 water sample stations, were identified in the field. Other data was obtained from the extraction of Sentinel-2 and SPOT (Satellite pour l’Observation de la Terre) satellite imagery 7. The size of intensive technology Pacific white shrimp culture ponds in Bulukumba Regency ranges from 1600 to 5000 m2 which is stocked with fry with a stocking density of 100–300 ind./m2 which can produce 12.0–50.0 tons/ha/cycle after rearing for 100–142 days of culture with a food conversion ratio of 1.2:1–2.0:1. The land characteristics of intensive technology Pacific white shrimp culture ponds in Bulukumba Regency are characterized by elevation from 10.0 to 20.0 m above sea level, wavy topography, tidal range between 1.35 and 1.70 m, dominated by Latosol or Cambisol and Alfisol or Mediterranean soil great groups, the quality of the source water can generally support Pacific white shrimp culture, and the annual rainfall is from 1341 to 1763 mm and it is not built on former mangrove land. It is recommended that existing Pacific white shrimp culture ponds increase the capacity and capability of their wastewater treatment plant ponds and implement better water management and feed management so that the quality of wastewater from intensive technology Pacific white shrimp culture ponds can also be better so that productivity can be increased and sustainable.

The Fasin rainbow fish, scientifically named Melanotaenia fasinensis, is highly prized by aquarium enthusiasts for its vibrant colors and adaptability to artificial aquatic environments. This species is endemic to the karst landscape of the Bird's Head region in Papua, Indonesia, and belongs to the family Melanotaeniidae. Discovered relatively recently in 2010, this species was designated as endangered by the International Union for Conservation of Nature (IUCN) in 2021. However, there is currently insufficient data regarding its phylogenetic position. To address this gap, our study employed next-generation sequencing (NGS) to analyze the entire mitochondrial genome of M. fasinensis. The mitochondrial genome comprises 13 protein-coding genes, 22 transfer RNA genes, and two ribosomal RNA genes, with a total length of 16,731 base pairs. The base composition of the mitogenome revealed percentages of 27.76% adenine (A), 27.34% thymine (T), 16.15% guanine (G), and 28.75% cytosine (C) residues. Our phylogenetic analysis based on sequence data indicated that all species of the Melanotaeniidae family clustered together on the same branch. Furthermore, the intergeneric and interspecific taxonomic positions were explicit and clear. Phylogenetically, Melanotaeniidae were more closely related to the family Isonidae than to the family Atherinomorus. The phylogenetic position of M. fasinensis was relatively basal within the genus Melanotaenia. This study provides valuable molecular insights for further exploration of the phylogeography and evolutionary history of M. fasinensis and other members of the genus Melanotaenia.

This study primarily focuses on pollutant of Global trends in the Marine Ecosystems around the Spermonde Archipelagos. Contaminants known as Global Trenches Pollutants (GTP) are absent from healthy marine environments. When using marine resources for marine tourism, accuracy and prudence are required to avoid future ecological dangers that have a cascading effect on human health as well as aquatic ecosystems. The study identifies exposure to GTP: microplastics (MP), polyaromatic hydrocarbons (PAHs), heavy metal (HM), pesticide residue (PR), and medical waste (MW) in marine ecosystems the Marine Tourism Area (MTA) area and Barrang Caddi Island (BCI) waters. A combination of qualitative and quantitative analysis methods was used with a combination of analytical instruments and mathematical formulas. The search results show the average total abundance of MP in seawater and fish samples (5.47 units/m3) and (7.03 units/m3) as well as in sediment and sponge samples (8.18 units/m3) and (8.32 units/m3). Based on an analysis of the polymer structure, it was identified that the dominant group is MP, from polyethylene (PE), polypropylene (PP), and polystyrene (PS), followed by polyamidenylon (PA) and polycarbonate (PC). Several PAHs pollutants were identified in the samples. In particular, Naphthalene (NL) types were the most common in all samples, followed by pyrene (PN) and azulene (AZ). BCI sea waters are suspected to be exposed to MW and PR. Pb+2 and Cu+2 pollutants around BCI were successfully calculated, showing average concentrations in seawater of 0.164 mg/L and 0.294 mg/L, respectively, while in fish, concentrations were 1.8110 µg/g and 2,452 µg/g, respectively. Based on these findings, the BCI area is not recommended as a marine tourism destination. BCI is maintained as a marine tourism area, it is feared that its ecosystem will enter an ecological hazard state, which will have a chain effect, not only on the aquatic ecosystem around the BCI but also on the sponge populations and fish, leaving them unfit for consumption and subsequently causing health problems for the community.

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The Pacific white or vaname shrimp (Litopenaeus vannamei) can now be cultivated using superintensive technology with stocking densities of 300–1200 shrimp/m3 and yields up to 100 tons/ha. However, this technology can produce nutrient-rich waste containing 20–30

Abstract The widespread degradation of mangroves has been attributed to their conversion into other land uses and purposes, most notably their destruction to construct extensive brackishwater aquaculture ponds. This study investigated the relationship between environmental factors and management alternatives for an integrated mangrove-aquaculture system in Derawan Island District, Berau Regency, East Kalimantan Province, Indonesia. The study collected a total of 56 soil and water samples from around 50 ha to assess environmental limiting factors for the integrated mangrove-brackishwater aquaculture management. The measured soil quality variables included pHF, pHFOX, SPOS, FeS2, organic matter, nitrogen-total Fe, and Al. Water quality variables included salinity, temperature, pH, dissolved oxygen, NH3–ammonia, NO3–nitrate, NO2–nitrite, PO4-phosphate, Fe, and total organic matter. The study employed a hydrological restoration approach to suggest a mangrove-friendly aquaculture pond design and layout. The study generally showed that Acid Sulfate Soils (ASS) significantly restricted the existing mixed-mangrove aquaculture pond management by negatively impacting water quality. This study highlights that, given the characteristics of ASS-affected aquaculture ponds, reducing pond size for shrimp culture (mangrove-to-pond ratio of 80% and 20%) will simplify managing ASS environmental limiting factors through cost-effective remediation technique and a Balanced Fertilization Strategy (BFS). The reduced shrimp pond size will also provide direct opportunities for mangrove restoration and allow effective hydrological restoration. The economic benefit of the proposed pond design and management model focuses on diversifying production units which include shrimp aquaculture ponds, milkfish or tilapia culture in the peripheral canals of the mangrove compartment, juvenile shrimp production, and periodic harvest from the primary pond canal. The study findings are particularly applicable to ponds that have already been built in ASS to improve productivity in addition to supporting the mangrove rehabilitation program. Converting mangrove and ASS-affected land is not advisable for constructing new aquaculture ponds.

The integration of mangrove management with aquaculture, termed the silvofishery pond system, has been implemented in Berau Regency, East Kalimantan Province, Indonesia. A detailed survey was conducted to assess the features of mangrove terrain surrounding silvofishery ponds, aiming to enhance the productive and sustainable management of these mangrove areas in Berau Regency. This survey focused on various land characteristics such as topography, tidal patterns, water quality, soil properties, climate, and the state of mangrove vegetation. The health of mangrove vegetation was assessed by calculating the Important Value Index (IVI) across different growth stages: trees, saplings, and seedlings. The findings reveal that the mangrove adjacent to the silvofishery ponds in Berau Regency are home to 14 species from 13 genera and 10 families. Rhizophora mucronata displayed the highest IVI scores across all growth stages: 75.17% for trees, 93.14% for saplings, and 66.98% for seedlings, the latter shared with Rhizophora apiculata. Soil quality emerged as a critical limiting factor for land use in silvofishery ponds, particularly due to high potential acidity (low pH) and low nitrogen (N) content. To enhance soil quality, it is recommended that soil management practices such as remediation (via drying, submerging, flushing, or liming) and N supplementation through fertilization be employed. Furthermore, given the sparse mangrove vegetation density at the tree level (1,012 trees/ha), efforts to promote natural mangrove regeneration and prevent deforestation and degradation are advised. Considering the unique characteristics of the mangroves, the implementation of the komplangan model—a silvofishery approach that segregates mangroves restoration pond from grow-out ponds—is recommended to boost productivity and ensure sustainability in the coastal region of Berau

Whiteleg shrimp (Litopenaeus vannamei) culture with more advanced technology has been developed in the coastal regions of Southeast Asia, including Indonesia, to catch up with the increasing worldwide demand for shrimp. If left unchecked, the effluent from this high-density shrimp farming could have irreversible impacts on the receiving environment and the shrimp industry. This study was carried out to determine changes in water quality status before and post-development of the intensive whiteleg shrimp industry in the coastal area of Je’neponto, a regency located in the south of South Sulawesi Province, Indonesia. The water quality parameters were measured in situ and ex situ before the farming cycle started and after harvesting. Temperature, salinity, pH, dissolved oxygen, nitrate, nitrite, ammonia, and phosphate were measured using standardised methods. The data were statistically analysed using Kruskal–Wallis, Mann–Whitney, and principal component analysis. Water quality status was determined using the storage and retrieval approach. The potential for waste from the intensive whiteleg shrimp ponds was estimated at 7,408 kg of total nitrogen (TN) per cycle and 1,748 kg of total phosphorus (TP) per cycle. The study also found that the wastewater treatment plant pond was only about 1.45% of the total pond volume and is classified as a low-capacity wastewater treatment plant for intensive whiteleg shrimp farming. The water quality was classified in the class B category (good or slightly polluted) prior to the operation of the shrimp farm to class C (moderate or moderately polluted) afterwards.

High-tech whiteleg shrimp ponds (Litopenaeus vannamei) (intensive and superintensive) are rapidly developing. The rapid development is due to the increasing demand for world shrimp, the mastered cultivation technology, and the vast potential of land in Indonesia. The Indonesian government has even made various regulations to support increased sustainable shrimp production. However, the regulation is still sectoral and cannot be implemented by all stakeholders and investors in aquaculture. In addition, investors have not practiced several stages of activities to ensure environmental safety and the success of shrimp farming. As a result, production targets have not been achieved, and the threat of high potential waste is wasted on the aquatic environment. Therefore, a role model is needed to govern high-tech whiteleg shrimp pond development to ensure all shrimp production improvement system instruments can run well. Based on this, research has been conducted to create a role model for developing high-tech whiteleg shrimp ponds (Litopenaeus vannamei). The research used survey methods and group discussion forums (FGDs). The results showed that there are four main components that must exist and synergize in the role model of governance for the development of high-tech whiteleg shrimp ponds: land carrying capacity, cultivation facilities, pond management, and government regulations.

BACKGROUND AND OBJECTIVES: The quality and production volume of the cultivation of tiger prawn Penaeus monodon have decreased considerably in the last two decades. However, intensification and extensification efforts, including the application of cultivation technology through pond land recovery, have not produced expected results. Visible symptoms suggest potential issues with the cultivation water possibly originating from exposure to heavy metal pollutants. Therefore, this study aimed to remove heavy metal pollutants by using sponge symbiont bacteria bioremediators to increase the survival rate and quality of tiger prawn production. The achievements of this research are expected to contribute to the scientific development of environmental microbiology, bioremediation, and aquaculture pollution control. METHODS: The study utilized Bacillus pumilus and Pseudomonas stutzeri bacteria. The water used for tiger prawn post-larvae cultivation was treated with these bioremediator bacteria. The water had copper and lead ion concentrations that were 20 times greater than the maximum threshold value. The physical and chemical characteristics and parameters, such as dissolved organic matter, nitrite, nitrate, and ammonia contents, of the cultivation water were monitored over a 30-day period. The specific growth rate in terms of weight and body length and the survival rate of the tiger shrimps were measured to evaluate the effect of the bioremediation process on the prawns. The concentrations of copper and lead ions in the cultivation water and within the body of the tiger shrimps were analyzed. The health of the tiger prawns was evaluated by observing signs of tissue damage. FINDINGS: Among all the treatments, Treatment I with copper ion exposure had the highest average specific growth rate of the tiger prawns in terms of weight and body length, followed by Treatment II with lead ion exposure and Treatment III with a combination of both pollutants (the lowest). The intersection of copper and lead ion concentrations in the tiger prawns and cultivation media occurred in the cultivation period of 15-20 days. The use of Bacillus pumilus and Pseudomonas stutzeri bacteria as bioremediators effectively remediated the copper and lead pollutants at an average of 99.34 percent and 97.18 percent of the initial concentration, respectively. Despite the bioremediation efforts, the tiger shrimps exhibited symptoms of tissue damage in the head, tail, and shell. These symptoms included necrosis, myopathy, and infiltration, which are indicative of decreased cell function due to the presence of toxic agents. CONCLUSION: Bioremediation with Bacillus pumilus and Pseudomonas stutzeri bacteria helped reduce the accumulation of heavy metal pollutants. However, negative effects on the health and growth of tiger prawns were still observed when the prawns were exposed to copper and lead ion concentrations below

Tracing and characterizing marine natural materials with special medicinal abilities is important to obtain new materials to enrich the diversity of drugs to treat particular diseases. The identification of the chemical components of sponges is interesting, considering the uniqueness and several other abilities possessed by sponges that are thought to have medicinal potential. Searching for chemical components in sponge extracts is suspected to contain secondary metabolic substances with medicinal potential. The study aimed to identify the chemical components of sponge extract with potential medicinal value based on differences in solvents. The first extract on the sponge Clathria (Thalysias) reinwardti Sp.1 (CTR) by maceration method using semi-polar solvents (methanol). The second extraction uses a separating funnel with two types of non-polar solvents (diethyl-ether and n-hexane). The chemical components of the three extracts were analyzed using a gas chromatography-mass spectrophotometer instrument. The identified chemical components of sponge extract generally belong to the class of free fatty acids and cholesterol. Investigation of identified compounds with medicinal value chemical components, for example, Cholestan-3.alpha.-ol, Ergosta-5, Hexadecanoic acid, 1-(2,6-Dichlorophenyl)-2-indolinone and Pyridine-3-carboxamide. Searching for chemical components with medicinal potential from sponge extracts is novelty research based on differences in solvents, a new method. Complementing the data from this research, it is necessary to carry out further and specific searches related to chemical components with medicinal properties, which can be carried out by chromatographic fractionation and testing the activity of the extract against bacteria. pathogens and parasitic fungi.

This study was carried out with the aim to identify the characteristics and determine the direct or indirect effect of soil and water quality on the agar content of seaweed Gracilaria verrucosa in acid sulfate soil (ASS) -affected brackishwater ponds in South Sulawesi Province, Indonesia. The study was conducted in ponds of North Luwu and Sinjai Regencies. The soil quality is defined as the independent or exogenous variable; the water quality as an intermediate, dependent, or endogenous variable; as well as the agar content of seaweed as a dependent or endogenous variable. The influence of environmental factors was identified through path analysis applications. In general, the water quality can support the culture of seaweed in ponds. The results of the research showed that of the 17 soil quality variables analyzed, 2 variables were found, namely Fe content and pH KCl which influenced the agar content of seaweed. Another result was that of the 9 water quality variables, and 2 variables were also found, namely salinity and NO 3 - content which influenced the agar content of seaweed. Soil Fe can reduce the agar content while soil pH KCl , salinity, and water NO 3 - content can increase the agar content of seaweed in ASS ponds in South Sulawesi.

This study explores the factors influencing shrimp farmers’ adoption of Good Aquaculture Practices (GAPs) in traditionally managed aquaculture ponds cluster in Pinrang Regency, South Sulawesi Province, Indonesia. The factors influencing shrimp farmers’ decision to apply GAPs to traditional ponds in Pinrang Regency were analyzed using the Theory of Planned Behavior (TPB) with structural equation modeling (SEM). The analysis results showed that shrimp farmers’ willingness to adopt GAPs was strongly influenced by their attitude that GAPs can increase their production or income, improve a positive reputation in society, and contribute to improving the aquaculture environment. Meanwhile, the main impetus for adopting GAPs came from exporters or local entrepreneurs and directives and assistance from the relevant government, universities, and academics. The shrimp farmers believe that to maximize the level of application and the adoption of GAPs, improving pond engineering and managing environmental limiting factors are of high priority. The decline in aquaculture pond water quality is closely related to the condition of ponds with problems exchanging water, particularly disposing of aquaculture waste after the operation.

The Government of the Indonesian Republic has targeted an increase in the value of shrimp exports and production until 250% by 2024. Thus, a special strategy is needed to develop whiteleg shrimp (Litopenaeus vannamei) culture that can increase production but does not negatively impact the aquatic environment. For this reason, research was carried out to obtain a strategy for developing sustainable intensive/super-intensive technology of whiteleg shrimp culture in South Sulawesi Province, Indonesia. The activity was conducted in South Sulawesi Province from March to July 2021. The data were collected from questionnaires submitted to respondents or actors, namely whiteleg shrimp brackishwater pond managers and other stakeholders and structured observations on whiteleg shrimp ponds. The validity of the questionnaire was tested using Corrected Item-Total Correlation method and the reliability was tested using Cronbach’s alpha method. Another primary data source was obtained through Focus Group Discussion. Data analysis was undertaken using the Analytical Hierarchy Process method. The research results show that, of the 18 intensive/super-intensive technology of whiteleg shrimp farming businesses operating in Bulukumba, Je’neponto, and Takalar Regencies, only one whitleg shrimp farming business applies super-intensive technology. The main problems in intensive/super-intensive whiteleg shrimp culture are disease attacks, namely acute hepatopancreatic necrosis disease or early mortality syndrome and white feces disease and the inconsistent quality of seed. Among the four criteria studied, it was found that environmental factor criteria are the most influential in developing intensive/super-intensive technology of whiteleg shrimp culture. Among the seven alternative strategies, the order of priority of the alternative strategies is environmental protection of culture, management of culture areas, modern technological innovation, environmentally friendly culture technology, easy access to business and capital, improvement of human resources, and availability of pond facilities.

Toxic materials in waste generally contain several components of the global trending pollutant category, especially PAHs and heavy metals. Bioremediation technology for waste management that utilizes microorganisms (bacteria) has not been fully capable of breaking down these toxic materials into simple and environmentally friendly chemical products. This review paper examines the potential application of a consortium of marine sponge symbionts with high performance and efficiency in removing PAHs and heavy metal contaminants. The method was carried out through a review of several related research articles by the author and published by other researchers. The results of the study conclude that the development of global trending pollutant (GTP) bioremediation technology could be carried out to increase the efficiency of remediation. Several types of marine sponge symbiont bacteria, hydrocarbonoclastic (R-1), metalloclastic (R-2), and metallo-hydro-carbonoclastic (R-3), have the potential to be applied to improve waste removal performance. A consortium of crystalline bacterial preparations is required to mobilize into GTP-exposed sites rapidly. Bacterial symbionts of marine sponges can be traced mainly to sea sponges, whose body surface is covered with mucus.

With superintensive technology, Vannamei shrimp ( Litopenaeus vannamei ) farming can increase shrimp production. Shrimp production in superintensive ponds can reach 50 tons per hectare, equivalent to 60 years of production in traditional technology. However, high stocking density with feeding can result in the waste of organic matter into the environment at the time of water change. Sustainable intensive ponds can stand to achieve qualification since their development exists based on water carrying capacity. This study aims to analyze the status of water quality and determine the carrying capacity of waters for developing intensive ponds of vannamei shrimp in Gantarang and Bontobahari Districts, Bulukumba Regency. The results showed a change in water quality status based on distance from the beach and the season. In Gantarang District, intensive pond development can still be carried out based on the oxygen and nitrogen carrying capacity of waters of 56 ha and 110 ha, respectively, while in Bontobahari District, there are 55 ha and 109 ha, respectively.

Heavy metals, mercury, and nickel are toxic contaminants, forming positive ions when concentrated and dissolved, and can accumulate in a specific object, including water. The activity and performance of bacterial bioremediation against toxic heavy metals vary due to bacterial characteristics and internal contaminant factors. This research aims to analyze the activity, performance, and efficiency of bioremediation of nickel and mercury pollutants using marine sponge symbiont bacteria. The bioremediation analysis procedure, suspension of bacteria Alcaligenes faecalis strain Cu4-1 (AF), and Acinetobacter calcoaceticus strain PHCDB14 (AC) interacted with heavy metal pollutants as contaminants for 15 days. Bioremediation performance and efficiency were measured using AAS. The analysis parameters consisted of the performance, efficiency, and mechanism of bacterial bioremediation against nickel and mercury pollutants. The research results show that the bioremediation performance of AF and AC bacteria can carry out the bioremediation function against Ni+2 and Hg+2 contaminants. The bioremediation performance of AF bacteria against Ni+2 pollutant is, on average 167.64±0.9 mg/L, equivalent to 66.85% bioremediation efficiency, and against Hg+2 an average 171.55±0.7 equivalent to the efficiency of 65.47%. The performance of bioremediation of AC bacteria on Ni+2 pollutant was 168.92±0.7 or efficiency reached 66.97%, and 145.87±0.8 for Hg+2, equivalent to 58.35% efficiency. The bioremediation performance of AF ˂ AC bacteria against Ni+2 pollutants, but against Hg+2 pollutants, the bioremediation performance of AF ˃ AC bacteria. The symbiotic bacteria of marine sponges are thought to have bioremediation performance against toxic metal pollutants are bacteria isolated from sponges whose body surface is covered with mucus substances.

PAHs contaminants have toxic, carcinogenic, and even mutagenic properties. Screening bacteria from different sources capable of carrying out the biodegradation of PAHs is important for mapping and mobilization purposes and applying them to polluted hydrocarbon environments. The study aimed to compare the biodegradation power of two types of bacteria isolated from different sources against PAHs. The method applied is the interaction between bacterial suspen-sion and pyrene contaminated waste for 30 days. Biodegradation products in organic compounds were analyzed using GC/MS and FTIR. The analysis results found several indications of the performance of bacterial biodegradation, namely: the aggressiveness of biodegradation of Bl bacteria against pyrene was relatively more dominant than Sb bacteria. The percentage of to-tal bacterial biodegradation for product type Sb was (39.00 %), and that of the product of bacteri-al degradation type Bl (was 38.29 %). The biodegradation products of the test bacteria (Bl and Sb) were relatively similar to pyrene, in the form of alcohol and carboxylic acid organic com-pounds. It was concluded that there was no significant difference in biodegradation per-formance between Bl and Sb bacteria on for pyrene. Both types of bacterial isolates from differ-ent sources can carry out the function of biodegradation of pyrene.

High-quality marine ecosystems are free from global trending pollutants’ (GTP) contaminants. Accuracy and caution are needed during the exploitation of marine resources during marine tourism to prevent future ecological hazards that cause chain effects on aquatic ecosystems and humans. This article identifies exposure to GTP: microplastic (MP); polycyclic aromatic hydrocarbons (PAH); pesticide residue (PR); heavy metal (HM); and medical waste (MW), in marine ecosystems in the marine tourism area (MTA) area and Barrang Caddi Island (BCI) waters. A combination of qualitative and quantitative analysis methods were used with analytical instruments and mathematical formulas. The search results show the average total abundance of MPs in seawater (5.47 units/m3) and fish samples (7.03 units/m3), as well as in the sediment and sponge samples (8.18 units/m3) and (8.32 units/m3). Based on an analysis of the polymer structure, it was identified that the dominant light group was MPs: polyethylene (PE); polypropylene (PP); polystyrene (PS); followed by polyamide-nylon (PA); and polycarbonate (PC). Several PAH pollutants were identified in the samples. In particular, naphthalene (NL) types were the most common pollutants in all of the samples, followed by pyrene (PN), and azulene (AZ). Pb+2 and Cu+2 pollutants around BCI were successfully calculated, showing average concentrations in seawater of 0.164 ± 0.0002 mg/L and 0.293 ± 0.0007 mg/L, respectively, while in fish, the concentrations were 1.811 ± 0.0002 µg/g and 4.372 ± 0.0003 µg/g, respectively. Based on these findings, the BCI area is not recommended as a marine tourism destination.