bluuebunny/crossref_metadata_2025_split huggingface dataset:
Feasibility study of seaweed farming Kappaphycus alvarezii in Sub-District North Pulau Laut and Sub-District East Pulau Laut Kota baru Regency, South Borneo, Indonesia
Authors: Tuwo A , RizkaAuliana  , Samawi M F , Aprianto R , Tresnati J 
Published: September 2020

Abstract

Kappaphycus alvrezii has the potential to be developed due to the increasing demand for local and international markets. To support the development of Kappaphycus alvrezii cultivation, a new feasible cultivation area is needed. This study aims to analyze the feasibility of Kappaphycus alvarezii farming in North Pulau Laut District and Pulau Laut Timur District, Kotabaru Regency, South Kalimantan. The analytical method used was a spatial analysis of physical and chemical parameters and strategic environmental conditions analysis. The total area of land suitable for seaweed cultivation in Pulau Laut Utara and Kecamatan Pulau Laut Timur was around 11,499 ha for the feasible category, with the waters carrying capacity of was 9,498 ha for 18,996 units of seaweed cultivation; with this carrying capacity, it can produce 79,783 to 96,880 tons year−1 for four times the harvest season or 99,729 to 121,100 tons year−1 for 5 times the harvest season. Three main strategies that need to be implemented to achieve the estimated production were improving quantity and quality of seaweed production, utilization of all suitable land for seaweed cultivation basing on the waters carrying capacity, and research development to improve the seaweed quality and products by involving universities, government, and private companies/institutions.
Development of integrated seaweed culture and capture fisheries in Indonesia
Authors: Najamuddin  , Hajar M A I , Rustam  , Palo M , Asni A 
Published: September 2020

Abstract
Seaweed development has had positive impacts on surrounding environments and fisheries resources, even using traditional technologies. The integration of aquaculture and capture fisheries will have a multiplier effect on fish farmer income as well as supporting the development of the aquaculture sector. This research aimed to optimize the utilization of fisheries resources around seaweed culture areas. Two case studies were conducted at Libukang Island, Jeneponto District, South Sulawesi, and at Sarudu village, North Mamuju District, West Sulawesi. Resource use in seaweed culture areas was optimized through the design, construction, and implementation of improved fishing gears: gill nets, bamboo traps, and fyke nets. The study results show that integrating seaweed culture and capture fisheries using these gears can increase fishermen’s incomes. The level of additional income depends on fishing intensity. In addition, seaweed culture productivity should be improved through integration with fish cage culture. The cultured fish expel waste to the environment (feed, feces, and urine) that can provide nutrients to the seaweed. The sustainability of fishing depends so much on the sustainability of seaweed culture were used as a fish aggregating device.
The impact of organic waste contamination on the macrozoobenthos community and its potential as a bioindicator in Labuange Bay waters, Barru Regency, South Sulawesi Province
Authors: Paena Mudian , Syamsuddin Rajuddin , Rani Chair , Tandipayuk Haryati 
Published: September 2020

Abstract
Superintensive shrimp farming (Litopeneus vannamei) has been developed since 2012 in Barru district, South Sulawesi. Organic waste from uneaten shrimp feed has been discarded into Labuange waters during superintensive farming development. Accumulated organic waste in the sediment of Labuange sediment has an impact on the presence of macrozoobenthos. The study aims to analyze the structure of the macrozoobenthos community and its potential as a bioindicator of organic waste pollution in Labuange waters, Barru Regency, South Sulawesi. The study was conducted using a survey method. A sampling of Labuange sediment for macrozoobenthos analysis was carried out at six stations with six replications, respectively. The type of identified macrozoobenthos was then analyzed by CCA (Canonical Correlation Analysis) using PAST (Paleontological Statistics) software to calculate the strength of the relationship between the characteristics of the sediment and the macrozoobenthos indicator. Species and abundance of macrozoobenthos were analyzed using analysis of variance (ANOVA) to find out the differences of species and abundance of macrozoobenthos in each station. The results showed differences in macrozoobenthos abundance in each station, and found ten types of macrozoobenthos which had potential as an organic waste bioindicator, whose presence was directly related to the characteristics of sediments, in the form of organic carbon, organic matter, phosphate, pHf, redox potential and N-total namely Nassarius absconditus, Tenagodus sp., Nassarius sp., Tellina radiata, Tellina sp., Pinna sp., Vexillum sp., Arenicola sp., Cerithium sp., and Cerithium salebrosum. Based on the macrozoobenthos diversity index, heavy pollution was occurred at stations 1, 3, 4, 5, and 6, while station 2 was in moderate pollution.
Potency of mangrove Rhizophora mucronata as bactericide for vibrio causing tiger shrimp disease
Authors: Nurhidayah  , Muliani  , Atmomarsono Muharijadi 
Published: September 2020

Abstract
Tiger shrimp diseases have been occurred in Indonesian brackishwater ponds for two decades and considered as one of the factors causing mass mortality of the cultured shrimp and making big loss for the farmers. Vibrio harveyi is considered as the main causative agent of this disease. The natural substance is proposed to kill or inhibit the growth of pathogenic vibrios. In order to know the potency of mangrove Rhizophora mucronata as a bactericide for V. harveyi, research had been conducted at the Research Institute for Coastal Aquaculture (BPPBAP) from February to May 2013. This research consists of several steps, i.e. 1) collection of plant; 2) drying of the plant; 3) making powder of plant; 4) extraction of plant/herb; 5) qualitative bioassay; and 6) quantitative bioassay. The results showed that qualitatively all part of the R. mucronata collected from Bone regency had activity against V. harveyi, but the leaf part of this mangrove collected from Maros regency did not have this activity, and neither the leaf or bark part of this mangrove collected from Pangkep regency. The values of Minimum Inhibition Concentration (MIC) on V. harveyi were ranged between 1-10.000 mg/L depending on which part of the plant and the origin of the mangrove. The root part of the plant had higher activity against V. harveyi than other parts of the plant. Rhizophora mucronata collected from Bone regency had the highest activity against V. harveyi than that collected from Maros and Pangkep regencies.
Microplastic assessment in Seagrass ecosystem at Kodingareng Lompo Island of Makassar City
Authors: Tahir A , Soeprapto D A , Sari K , Wicaksono E A , Werorilangi S 
Published: September 2020

Abstract
Microplastic pollution is so widespread and rising a great concern all over the globe. The seagrass ecosystem is commonly known to play significant roles in biodiversity support. The occurrence of microplastics (MPs) in sediments, surface water, fish, and benthos collected from the seagrass ecosystem at Kodingareng Lompo island of Makassar City were observed. From 29 sediment samples collected the range of MPs abundance was 2.96-28.3 item.kg−1 dried sediment. Meanwhile, MPs abundance in surface water was 0.023 item.m−3, exceptionally lower compared to the sediment value. Of 4 fish species observed, Siganus canaliculatus was the species with the highest number of ingested MPs. On the other hand, sea urchin Tripneustes gratilla ingested more MPs compared to other benthos species. There was no consistent MPs abundance in sediments found at present studies. Similarly, there were no statistically significant differences seen on MPs abundance within all components examined using non-parametric Kruskal-Wallis analysis. However, the presence of MPs in all components observed has clearly shown a wide dispersion of MPs contamination in the marine food web, as seagrass is a well-known productive ecosystem with high marine biodiversity assemblage in the tropical region.
Heavy metals (Pb, Cd, Cu and Cr) accumulation on different shell size of Polymesoda sp from Estuary Waters of Parepare Bay
Authors: Samawi M F , Gosalam S , Werorilangi S , Hatta M , Isyanita  , Saputra A 
Published: September 2020

Abstract
This study revealed the differences in the concentration of heavy metals Pb, Cd Cu, and Cr accumulated in a different-sized group of Polymesoda sp shells originating from the waters of Parepare City. Shellfish were divided into three size groups, namely Small (23-41 mm); medium (42-59 mm), and large (59-77 mm). Heavy metal concentrations in shell, water and sediment samples were analyzed using atomic absorption spectrophotometers (AAS). The results showed that the concentration of heavy metals in waters and sediments had the same pattern, Cu> Pb> Cd> Cr. Heavy metals, Pb and Cu, had the highest accumulation in the large-sized shells, while Cd was in the medium-sized shells. Cr, however, showed the lowest accumulation in all size groups. This situation shows that Polymesoda sp shells originating from the waters of Parepare Bay are still suitable for consumption.
Aquatic invasive species distribution within Wallace region: a preliminary review
Authors: Yanuarita D , Inaku D F , Nurdin N , Rahim S W , Kudsiah H , Parawansa B S , Rukminasari N , Irmawati  , Moka W 
Published: September 2020

Abstract
The introduction of many aquatic species into new habitats have been recorded to be invasive and later threatened the native species present in that habitat. The unique biogeography of the Wallace region, particularly Sulawesi Island characterized by having high endemic fauna. Several lakes in Sulawesi have experienced the population reduction of endemic species due to introduced species that become invasive. This paper intended to review the aquatic invasive species and their distribution in the Wallace region. The literature review revealed the number of invasive species introduced in the Wallace region varies from 1 species to 12 species, the highest found in Lake Tondano. This preliminary review record that Malili lakes are most researched, both for endemic species and invasive species, based on the number of publications found through an internet search, with publications on endemic species, are more than invasive species. Among 13 lakes in Sulawesi, 4 lakes, namely Lake Moat, Sidendreng, Wawanloa, and Masapi, have no record on aquatic invasive species. A similar situation also happens in Maluku. The information on the mode and reason for fish introduction into Appo Swamp in West Sulawesi and watershed in Manggarai Regency, East Nusa Tenggara, is still lacking. All in all, the conclusive cause and effect of introduced species that become invasive on the endemic species in the region is need to be prove or unproven based on scientific data. At this time, the literature review has not been able to find documentation on marine invasive species in the Wallace region. As for invasive species management, prevention is better than eradication.
Quality indicators of metals pollution in the coastal sediments in Sangihe Islands Regency, North Sulawesi Province, Indonesia
Authors: Asaf R , Athirah A , Tarunamulia  , Paena M , Mustafa A 
Published: September 2020

Abstract
Metal pollution in coastal areas is one of the focused environmental concerns. Sediment quality in the coastal zone reflects the long-term environmental status because it keeps a record of the development in the area. Quality indicators for metals in surface sediments were evaluated at 18 points of sediment sampling sites of these three bays using the Enrichment factor (EF) and the geo accumulation index (Igeo). Research locations in the coastal areas of Sangihe Island, Talengan Bay, Manalu, and Dagho Bay have values below the metal concentration at the background value. The Igeo category at the three research sites can generally be divided into two criteria, namely: Background concentration and unpolluted. For the types of Cr and Mg metals that are categorized as experiencing enrichment Minimum enrichment (Less), with an EF value <2, Moderate enrichment (Moderate), with a value of 2≤EF <5, and Enough enrichment (significant), with a value of 5≤EF <20. Whereas Co metal experiences enrichment of Very High enrichment (Very High), with a value of 20≤ EF < 40, and Extremely High (extremely high), with an EF value of ≥40, but still has an igeo value <1 which indicates that the metal Co is still in the category of no pollution.
Physicochemical characteristics of pempek premix flour made from mackerel fish (Scomberomorus commersoni) surimi powder
Authors: Rombe G S , Tahir M M , Tawali A B 
Published: September 2020

Abstract
Pempek is known as one of the signature dishes from Palembang, South Sumatera, that is made of a mixture of fish and tapioca flour. Pempek is made through a long process such that the production time-consuming. Pempek premix flour (PPF) is made from a mixture of surimi powder, tapioca starch, and wheat flour, which can be used to make pempek instantly. This study aimed to determine the profile of PPF products based on physicochemical characteristics. This research was divided into two stages. The first stage was the process of making surimi powder from mackerel fish. The second stage was the process of making PPF and physicochemical analysis. The physicochemical characterization of PPF was conducted to obtain information on proximate content, yield, color (L*, +a, +b values), whiteness, gel strength, water absorption capacity (WAC), and microscopic structure. The result showed that PPF contained 12.18% of moisture, 18.3% of protein, 65.55% of carbohydrate, 2.27% of fat, and 1.69% of ash. The results of physical characterization showed that PPF has 97.8 lightness value (L), white color (a=2.7 and b=14.1), 85.8% whiteness value, 885.8 g.cm gel strength, and 1.25 ml/g WAC. Microstructure results showed that the PPF had a solid texture appearance with different particle sizes.
Use of powder-formed probiotics in extensive tiger shrimp culture
Authors: Atmomarsono M , Nurbaya  , Nurhidayah  , Susianingsih E 
Published: September 2020

Abstract
To know the effectivity of powder-formed probiotics compared to the liquid-formed probiotics t-test experiment was carried out in the Marana Experimental Pond Installation of the Research Institute for Coastal Aquaculture and Fisheries Extension, Maros. Ten 250-m2 concrete-wall ponds with 80 cm water depth and aerated with supercharge blower were stocked with 8 pcs of tiger shrimp post larvae/m2. Treatments tested here were A) The liquid-formed of alternate use of Bacillus subtilis BM12, B. licheniformes BM58, and Brevibacillus laterosporus BT951 and B) The powder-formed of alternate use of Bacillus subtilis BM12, B. licheniformes BM58, and Brevibacillus laterosporus BT951. There were five replications in each treatment. After 67 days of culture showed that the use of powder-formed probiotics tended to be better than the use of the liquid ones, even though not significantly different (P>0.05). The average production and survival rate of powder-formed probiotics were 430.4 + 37.6 kg/ha and 72.1 + 9.8%, while those of the liquid-formed probiotics were 385.6 + 73.6 kg/ha and 66.6 + 10.8%. Both forms of probiotics could effectively maintain water quality parameters like total organic matter, NH3-N, NO2-N, and TBV/TPC ratio.
The effects of seaweed, Sargassum sp. meal dosages in the artificial diet on growth, feed intake, feed efficiency, protein efficiency ratio, and nutritional body composition of Rabbitfish, Siganus guttatus
Authors: Usman  , Saade E , Sulaeman HA , Jannah N M , Kamaruddin  
Published: September 2020

Abstract

Sargassum sp. meal is a plant ingredient that has not been used properly, and its potential has not fully realized as an herbivorous fish diet. This experiment aims to determine the potential use of sargassum meal in the grow-out of the rabbitfish diet. Rabbitfish (initial weight of 51.76 ± 0.11 g ind−1) those were cultivated in fifteen floating net cages sized 1×1×1.5 m3 at 20 fish cage−1 stocking density lasted for 90 days. This experiment was designed as Completely Randomized Design with five treatments of sargassum meal dosages in diets, which were 0.0, 7.5, 15.0, 22.5, and 30.0%, with three replications each. The results showed that no significant effect (P>0.05) of different sargassum meal dosages on the specific growth rate and survival rate of rabbitfish. However, feed intake increased with increasing sargassum meal, where the highest was obtained at 22.5% (275.6±9.2 g fish−1) and 30.0% (270.8±8.4 g fish−1) dosages which were significantly higher (P<0.05) than the other dosages. At the same time, sargassum meal dosages were significantly different (P<0.05) on feed efficiency and protein efficiency ratio, where they both seem to decrease with the increase of sargassum meal. The highest feed efficiency was obtained at the dosage of 0.0% (68.6±3.6%) that had no significant effect (P>0.05) with 7.5% (63.7±2.2%) and for protein efficiency ratio was obtained at 0.0% (2.29±0.12) that had no significant effect (P>0.05) with 7.5% (2.20±0.08) and 15.0% (2.12±0.05) dosages. The use of sargassum meal as much as 30.0% caused a lower crude lipid and higher crude protein contents in the nutritional body composition of rabbitfish, and was significantly different (P<0.05) compared to 0.0% dosage. Based on the growth rate of fish, the optimum dosage of sargassum meal in rabbitfish grow-out diet was estimated at 19.46%, but only 7.5% of sargassum meal could be used in the diet based on feed efficiency.
The effect of various processed seaweed, Kappaphycus alvarezii products as gel diet thickener on the utilization of nutrition in Rabbitfish, Siganus guttatus cultivation in the floating net cage
Authors: Saade E , Fadhilah S H , Kalsum U , Usman N G 
Published: September 2020

AbstractSeaweed,K. alvareziias a gel diet thickener. The quality of the thickener is determined by the processing method. The purpose of this study was to determine the type of processed seaweed,K. alvareziiproduct, which is the best thickener in the gel diet based on fish body nutrient contents, protein efficiency ratio (PER), and protein retention (PR). Experimental fishes used were rabbitfish with an average weight of 55.23±4.46 g/individual, which was cultivated in a small cage (hapa) measuring 100 x 70 x 100 cm and placed in floating net cages (FNC). An experimental diet is a gel diet. The frequency of feeding is done twice a day, 7:00 in the morning, and 16:00 in the afternoon by satiation. The experimental design used was a completely randomized design (CRD) with 4 treatments and 5 replications. The treatment in this study was a gel diet containing some processed seaweed products such as dried seaweed flour (treatment A), fermented seaweed flour (treatment B), carrageenan flour (treatment C), and seaweed soft (treatment D). Analysis of variance (ANOVA) was carried out, and the W Tukey test was continued for the treatment that had a significant effect on determining the effect of various processed seaweed products on the measured parameters. The results showed that processed seaweed products in the gel diet significantly affected changes in fish protein, lipid and carbohydrate contents, protein efficiency ratio, and protein retention in rabbitfish. The best nutritional content of fish, PER, and PR is found in treatment B (fermented seaweed flour). Based on the results of this study, it was concluded that the nutritional body content of fish, REP, and RP was best obtained in rabbitfish, which consumed a gel diet containing fermented seaweed.
A study on a potential bioactive compound in green seaweed Chaetomorpha antennina Kützing (1847) extract as antioxidant from the Gosong Telaga Coast, Aceh Singkil
Authors: Gazali Mohamad , Nurjanah  , Zamani Neviaty P. , Zuriat  , Arif Nasution Muhammad 
Published: September 2020

Abstract
Seaweed has considered as herbal medicine and food sources utilized by the coastal community to overcome their health problem. Aceh Singkil is one of the regency in Aceh Province that this surrounding area always be affected by oceanography phenomena such as tidal, wind, season, climate change and others. Aceh Singkil coastal area have high marine biodiversity especially seaweed. Seaweed are commonly categorized into three main classes, including Rhodophyta, Chlorophyta, and Pheophyta. Chaetomorpha antennina is one of the green seaweed that widely distributed on the Aceh coastal area. The objective of this study was to identify the potential active compound of C. antennina toward antioxidant activity. The sample of C. antennina was collected from around Gosong Telaga coastal zone. The research phase including rendement, extraction, phytochemical screening, and antioxidant activity. The data depicted the content of rendement in ethanol extract as much as 1.98%, ethyl acetate extract was 0.66%, and n-hexane extract was 1.08%. It is indicated that the ethanol extract has high rendement content than other extracts. Subsequently, green seaweed C. antennina was detected phenol, flavonoid, and steroid compounds. The cupric reducing antioxidant capacity method were obtained the ethanol extract was 44.7 umol trolox/g, ethyl acetate was 13.84 umol trolox/g, and n-hexane extract was 29.02 mmol trolox/g. Moreover, antoxidant activity with FRAP method yielded the ethanol extract value 576.50 umol trolox/g, the value of ethyl acetate as much as 500.50 umol trolox/g, and n-hexane extract value 200.50 mmol trolox/g. Based on two antioxidant activity that used in this study depicted the ethanolic crude extract have the strongest antioxidant activity than other extracts. This finding gives fruitful report for developing the marine natural product from green seaweed.