akuatikisle

The role of aquaculture is vast in efforts to increase the quality and quantity of fishery products and to meet the nutritional food needs of the people of the Maros and South Sulawesi Regencies. Catfish is one of the fisheries commodities that has good prospects for development. This is supported by the characteristics of catfish, which have high nutritional content, fast growth, are easy to breed, and can be maintained in almost all aquaculture containers. This study examines the flow of catfish marketing and analyses the differences in catfish prices in the Marusu Village, Palantikan Village, Maros Baru District, and Maros Regency. The research method was interviews assisted with a questionnaire instrument. The analysis used in this study is descriptive qualitative analysis for marketing channels and farmer's share analysis to measure the efficiency of acceptance of marketing channels for seed and catfish cultivators. The marketing channel for catfish seeds in the Marusu environment consists of 2 channels. Channel 1 starts from cultivators, collectors within the Marusu environment, and outside collectors and ends with cultivators outside the Maros area (consumers), channel 2 starts from cultivators, collectors and cultivators outside the Maros Regency area (consumers). The catfish marketing channel also consists of 2 channels. Channel 1, namely, starts with cultivators, retailers and consumers. Channel 2 is the cultivator directly to the consumer. For catfish fingerlings, farmers in marketing channels 1 and 2 are 75%, respectively. In contrast, the farmer's share in marketing channels 1 and 2 for catfish is 66.67% and 100%.

The purpose of this study was to see the abundance and distribution of mullet during the day and night on the coast of Lampu Satu Beach and Payum Beach. This research was conducted in June-August 2020. Determination of the sampling points at the research location using purposive random sampling method. Data analysis used in this research is Relative Abundance (Kr) and Morisita Spread Index (Id). Catches found during the study were 268, with 3 species of mullet, namely Mugil cepalus, Mugil dussumieri and Rhinomugil corsula. During the day, the total number of catches is 148 while at night it gets as many as 120. The highest proportion value of relative abundance was obtained from the two stations, namely Mugil dussumieri species and the lowest was Rhinomugil corsula. The results of the calculation of the morisita distribution index during the day at both stations obtained a value of 1.008 (group). It is also found that at night the two stations get a value of 1.014, which means that at night it is a group category.

This study examines the traditional local wisdom of the fishing community, North Galesong. This study aims to describe the position of local wisdom in the midst of modernity. This study uses a case study qualitative approach. Data obtained from primary and secondary sources. The data collection technique is done by interview, observation and documentation. The results of this study indicate that the local wisdom of mutual cooperation in the withdrawal of fishing boats in North Galesong has faded since the entry of modernity contamination. The change in the towing of the ship is based on rational considerations related to the effectiveness of work and respect for other community activities. The towing of ships carried out in mutual cooperation is more costly and time consuming. Towing ships using modern tools such as excavators is more efficient.

Mangrove forest is one of the ecosystems in the coastal area that plays an important role as a habitat for iktiofauna, one of which is the gelodok fish community. The purpose of this study was to compare the community structure of mudskippers at Bahak Indah Coast, Tongas, Probolinggo with or without mangrove vegetation. The study was conducted in January–February 2022. The determination of the observation station was carried out purposively, which was determined based on the presence or absence of mangrove vegetation. Observation of the mudskipper community used a systematic sampling method with the help of transects and plots. The analyzed mudskipper community structure data included diversity index, uniformity index and dominance index. The results found 4 species from 2 genera of mudskipper namely Boleophthalmus pectinirostris, Boleophthalmus boddarti, Periophthalmus chrysospilos and Periophthalmodon schlosseri. Mudskipper diversity index at both stations was in the medium category, and was higher at the stations with mangrove vegetation. The uniformity index was included in the high category, and was higher at the stations with mangrove vegetation, and the dominance index was in the low category, and lower at the stations with mangrove vegetation. The results of this study indicate that the coastal waters area with mangrove vegetation contributes to the high diversity and uniformity of the mudskipper community compared to areas without mangrove vegetation.

Sei Carang waters are a mangrove ecosystem area with a fairly wide area coverage, Sei Carang waters have mangrove ecosystems. This study aims to determine the level of mangrove density and production of mangrove litter in Sei Carang. This research was conducted May-June 2022 located in Sei Carang. Observation locations were determined by survey methods and point selection using purposive sampling. Then observations using line transects using a plot measuring 10x10 m. There were 6 species found at the study site, namely: Rhizophora apiculata, Rhizophora mucronata, Bruguiera gymnorhiza, Bruguiera sexangula, Sonneratia alba, Xylocarpus granatum. The most common types were found at station 1 where there were 6 of them, and at station 3 there were only 4 types. With density levels ranging from 1633.33 ind/ha to 2300 ind/ha. And also the highest litter production value occurs at station 3 with an average value of 7.21 (gbk/m²) and the lowest occurs at station 2 with an average value of 2.27 (gbk/m²), and the parameters of the Sei Carang waters are still relatively low. good for the life of the mangrove ecosystem when compared to seawater Quality Standards Government Regulation of the Republic of Indonesia No. 22 of 2021 concerning the Implementation of Environmental Protection and Management, Attachment VII.

The waters of Senggarang Besar are located in Senggarang Village, Tanjungpinang Kota District. The waters of Senggarang Besar have a fairly large mangrove ecosystem plus many mangrove seedling planting activities in the coastal waters of Senggarang Besar. Mangrove ecosystems have a variety of natural resources that are abundant and diverse. Mangroves are the most potential ecosystems because mangroves support the diversity of flora and fauna in aquatic communities and play a significant role in human survival based on economic, community and environmental perspectives. This study aims to determine the density, canopy cover, and status of mangrove ecosystems in the waters of Senggarang Besar. This research was conducted in September-December 2022 located in the waters of Senggarang Besar Tanjungpinang City, Riau Islands Province. Determination of observation stations using direct survey method in the field with 3 station points with 6 plots at each station, based on the presence of mangrove ecosystems. Determination of the retrieval point using purposive sampling method. Mangarove ecosystem species found in the waters of Senggarang Besar Tanjungpinang City Riau Islands Province there are 4 species including: Rhizophora apiculata, Bruguiera gymnorhiza, Xylocarpus granatum, and Avicenia marina. With density and cover values at station 1, 3900 ind/ha and 81.00%, at station 2, 1433.33 ind/ha and 69.98%, and station 3, 1446.7 ind/ha and 69.08%. The level of damage to the mangrove ecosystem in the waters of Senggarang Besar Tanjungpinang City, Riau Islands Province at station 1 includes good, very dense criteria based on KepMen LH No. 201 of 2004. While at stations 2 and 3 the level of damage includes good, moderate criteria based on KepMen LH No. 201 Year 2004.

The waters of the Beladeng River Muara is one of the areas in the Dompak Tanjungpinang Sub-District which has quite large potential for mangrove ecosystems. To maintain the condition of the mangrove ecosystem, it is necessary to know the structure of the mangrove community itself. The purpose of this study was to determine the types of mangroves and the structure of the mangrove community which includes the level of species density, species frequency, species closure, importance value index and mangrove canopy cover in the waters of the Beladeng River estuary, Dompak Tanjungpinang Village. This research was conducted in April-December 2022 using the Purposive Sampling method with 3 stations. In observing the mangrove ecosystem using the Transect Line Plot method measuring 10x10 m². Based on the results of the study, there were 3 types of mangroves found, namely Rhizophora apiculata, Xylocarpus granatum, and Brugueira gymnorhiza. Meanwhile, the mangrove community structure obtained the highest density at station 3 with a value of 4733.34 ind/ha. At station 1, the types of Rhizophora apiculata and Xylocarpus granatum received the same frequency values, and the highest IVI was achieved by Xylocarpus granatum. At station 2 the highest species frequency values were found in 2 species, namely Xylocarpus granatum and Rhizophora apiculata, and the highest IVI was Rhizhopora apiculata. For station 3, the 3 types of mangroves got the same type frequency value, and the highest IVI was achieved by Rhizophora apiculata. Meanwhile, the highest percentage of mangrove canopy cover was found at station 1 with good and very dense categories.

Seagrass beds in the waters of Barrang Lompo Island and Kodingareng Lompo have their own characteristics, especially for the type of Thalassia hemprichii. The purpose of this study was to determine the morphometric characteristics of seagrass Thalassia hemprichii and the environmental conditions of the waters on Barrang Lompo Island and Kodingareng Lompo Island. This research was conducted in June-July 2022 in the waters of Barrang Lompo Island and Kodingareng Lompo Island. The research method used was purposive sampling. Morphometrics of seagrass Thalassia hemprichii on Barrang Lompo Island at station 1 average leaf length 10.88 cm, leaf width 1 cm, rhizome length 5 cm, root length 6.46 cm, number of roots 8. At station 2 leaf length measures 7.5 cm, leaf width 1 cm, rhizome length 7.84 cm, root length 6.64 cm and number of roots 5. Meanwhile on Kodingareng Lompo Island at station 1 the size of leaf length was 10.33 cm, leaf width 1 cm, rhizome length 4 cm , root length 4.33 cm and number of roots 5. At station 2 the size of leaf length was 9.63 cm, leaf width 1 cm, rhizome length 4.85 cm, root length 4 cm, number of roots 5. Morphometrics of seagrass Thalassia hemprichii on islands Barrang Lompo and Kodingareng Lompo islands did not show a significant difference. The environmental conditions of the waters on both islands are still in optimum conditions for seagrass growth for the parameters of current speed and brightness.

Macrozoobenthos are bottom animals that play an important role in the productivity of waters in seagrass beds. This study aims to determine the species composition, density of macrozoobenthos, community structure of macrozoobenthos and the relationship between seagrass density and density of macrozoobenthos. The research method used is purposive sampling method, this method is taken based on certain reasons and criteria. This research was conducted in June-July 2022 on Barrang Lompo Island. Sangkarrang District, Makassar City. There were 26 species found consisting of 4 classes namely Bivalvia, Gastropods, Chepalopods and Crustacea with a total of 283 ind and dominated by the Gastropod class, both from the number of species and individual density. Macrozoobenthos community structure on Barrang Lompo Island at station I and II with a moderate diversity index (H'), moderate uniformity index (E') and low dominance index (D). The types of seagrass found at stations I and II were Enhalus acoroides, Thalassia hemprichii, and Cymodocea rotundata. The regression results of the relationship between seagrass density and macrozoobenthos density on Barrang Lompo Island show a weak relationship, which means that seagrass density has no relationship with macrozoobenthos density but macrozoobenthos density is influenced by physical and chemical factors of the waters and the type of sandy substrate.

Mangrove ecosystems consist of tropical plants that have adapted to the salinity, tidal fluctuations, and loose soil condition. Identification of mangrove ecosystems can be carried out by direct survey methods or by utilizing remote sensing technology. This study aims to map the area, percent cover, and density of mangroves in Makassar City using Sentinel 2A Imagery. The method used is the NDVI transformation, followed by Unsupervised-ISODATA classification, ground check with the 10 x 10-meter plotting method, and hemispherical photography. The results showed that the existence of mangroves in Makassar City was still found in the Tallo and Biringkanaya districts, with 68.81 ha of mangrove ecosystem cover area in the range of 84.36 - 91.89% (dense category). Likewise, the vegetation index based on NDVI analysis ranged from 0.73 - 0.81 (dense category), and the species density was in the range of 2700 - 6400 trees/Ha (dense category). Sentinel-2A imagery transformed with NDVI can be used to track mangrove areas and their density. The wide distribution of mangrove ecosystems in Makassar is relatively small but has good conditions.

Fishing port has a strategic role to encourage the development of the fishing industry and generate a regional economy. In the spatial plan, a fishing port is one of the forms of spatial structures, and the zoning plan has a Fishing Port Zone for the working and operation of the fishing port area. The aim of this study is to determine the priority fishing ports in the South of Java Island which will be developed and accommodated in the zoning plan and spatial plan policies within the framework of regional development. The method used in this study is to perform weighting and scoring analysis on criteria and sub-criteria based on the physical aspects, disaster, accessibility, spatial planning and space utilization, fishery, and prospect estimation. The result of this study concludes that the priority fishing port locations that can be further developed, namely: PPN Prigi, PPS Cilacap, and PPN Palabuhan Ratu.

Sea urchins were ecologically and economically important biota, but scientific information on sea urchins is still very minimal and there is no ongoing monitoring. The purpose of this study was to determine the density, abundance, community structure, and distribution patterns of sea urchins in the intertidal zone of Karanrang Island, Pangkep Regency. The research in June-July 2022 was carried out at high and low tide using three transects measuring 1 x 1 m consisting of four plots measuring 50 x 50 cm.  Determination of stations based on information from local residents to get observation stations based on tidal conditions. The results showed that three species of sea urchins from two families were found, namely Diadema setosum, Echinothrix calamaris, and Tripneustes gratilla. The species of D. setosum was found to be very abundant (97.3-97.6%) and tended to be more abundant during high tide than during low tide. The index of diversity and uniformity of porcupine species is low (H' = 0.130-0.142 and E = 0.118-0.129). The species dominance index was in the range of 0.946-0.953 indicating high dominance of D. setosum. Spatially, D. setosum had a uniform distribution pattern, whereas E. calamaris and T. gratilla were distributed in clusters. Further spatial and temporal research is needed to comprehensively determinant the conditions of the sea urchin population on Karanrang Island, Pangkep Regency.

Miangas Island is one of the outer islands of Indonesia. Determining policies for optimal and sustainable spatial use of coastal areas on Miangas Island requires a deep understanding of the people who live there. Observation survey and interview methods were used to collect primary data. The analysis used is the Analytical Hierarchy Process (AHP) to formulate solutions to land use conflicts in coastal and marine areas. The results of the analysis of conflict resolution on the use of coastal space using AHP show that the criteria that have a large influence on the purpose of conflict resolution analysis are land availability and suitability, and the first priority for alternative spatial development for the coastal area of Talaud Islands Regency is the development of fishery areas.

Mangroves are coastal ecosystems that have many benefits, including the ecological benefits of being a source of nutrients for marine life (aquatic biota) and a source of food for land biota. This study aimed to determine the species composition and community structure of mangrove vegetation based on the substrate type and the relationship between mangrove density and substrate texture in Borimasunggu Village, Labakang District. This research was carried out from July to August 2021 in the Borimasunggu Village, Labakkang District, Pangkep Regency. The research method is purposive random sampling which is divided into 3 stages. At each station, 3 transects/plots are determined. The study results found 3 mangrove species in Borimasunggu Village, Labakang District, based on the type of substrate, namely Rhizophora stylosa, Avicennia alba, and Sonneratia alba species. Relative Frequency (RFi) in Borimasunggu Sub-District, Labakang District, was found for all species equally, namely 33.33, the highest relative cover (RCi) was the species Rhizophora stylosa, which was 39.25, and the lowest Relative Coverage (RCi) was the mangrove species Sonneratia alba, which was 26,15. While the highest Significance Value (INP) is the mangrove species Rhizophora stylosa, which equals 148.66%, and the lowest Important Value (INP) is the mangrove species Sonneratia alba, which is equal to 70.59%. The highest relative density (RDi) was found in the mangrove species Rhizophora stylosa, which was 74.07% with a clay substrate type, followed by Avicennia alba 14.81% and Sonneratia alba 11.11% with a dusty clay substrate types.

This study aimed to analyze changes in the coastline in the Northeast of Nunukan Island, North Kalimantan Province and to determine the area in the Northeast of Nunukan Island, North Kalimantan Province, which experienced changes in the coastline. This research was conducted in February - March 2022 on the Northeast Coast of Nunukan Island, North Kalimantan Province. The type of data collected is satellite imagery for the last 6 years, 2017-2022. Data were analyzed using GIS software with cropping, radiometric correction, geometric correction, image enhancement, shoreline digitization and overlay methods. The results showed that the rate of change of the eastern coastline of Nunukan Island in 2017 was 13,457.91 m long, 2018 was 14,266.82 m long, 2019 was 14,787.25 m long, 2020 was 14,762.21 m long, 2021 was 15,369.23 m long, and in 2022 it is 15,968.22 m. The area that has experienced a change in coastline on Nunukan Island, North Kalimantan Province, namely in 2017 covering an area of 21.70 ha, in 2018 covering an area of 22.27 ha, in 2019 covering an area of 23.34 ha, in 2020 covering an area of 23.74 ha, in 2021 covering an area of 24 .26 ha and in 2022 it will be 32.82 ha. This study concludes that the area of change in the coastline has changed significantly from 2017 to 2022.

Bonylip barb (Osteochilus vittatus) is one of Indonesia's local fish which is starting to bloom in cultivation. One of the important needs in the development of fish farming is feed, to increase feed efficiency by providing probiotics which play a role in increasing growth, survival rates, digestibility, feed efficiency, the immune system and the composition of beneficial bacteria in the digestive tract of fish. This study aims to compare the concentration of different probiotics in commercial feed on the growth and survival of barley nilem (Osteochilus vittatus). The research was conducted at Pandaan Aquaculture Installation (IPB), Pasuruan Regency, East Java. Experimental study using a completely randomized design (CRD) with four treatments and three replications. Statistical analysis to compare growth performance (length and weight) and survival of nilem fish used analysis of variance (ANOVA) test. The results showed that there were differences in the growth of weight, length, and survival of barley nilem (Osteochilus vittatus) on commercial feed with different concentrations of probiotics. Where there is a tendency that the higher the concentration of probiotics in commercial feed, the higher the growth in length and weight and survival of nilem fish (O. vittatus).