Journal of Marine and Coastal Science

Sensory Characteristics and Nutritional Value of Taiyaki with the Addition of Spirulina sp. Powder

Anisa Eka Nurinsani — 2023-09-27

Spirulina is known as a superfood because it is rich in nutrients, both macro and micro. Spirulina has high levels of protein, potassium and polyunsaturated fatty acids (PUFAs) which contain essential amino acids, phycocyanins, essential vitamins and antioxidants. The high nutritional content of Spirulina causes the higher utilization of Spirulina in food products. Taiyaki is a food product originating from Japan and also popular in Korea (bungeo-ppang). The research design consisted of four treatments and five replications. The treatment of adding Spirulina sp powder into the taiyaki filling as much as 1, 2, and 3% of the weight of the filling. The results of the Kruskal Wallis test showed that the addition of Spirulina sp powder had no effect on the parameters of appearance, aroma and texture, on the contrary it had a significant effect on the parameters of taste. The results of the Mann-Whitney follow-up test, the level of preference for taste parameters was not significantly different (p> 0.05) between P0 (without the addition of Spirulina sp powder) and the treatment with the addition of Spirulina sp powder 1% (P1), 2% (P2), and 3% (P3) of the filling weight. The addition of Spirulina sp. in taiyaki products can increase the nutritional value of taiyaki, especially the protein (3.61%) and fat (2.63%) components.

Identification of Types and Production Volume of Catched Fish at Pondokdadap Beach Fishing Port (PPP), Malang Regency

Muhammad Fikri Ariefandi — 2023-09-27

The fisheries sector is a sector with great potential for the Indonesian economy. East Java has a large fishing business, this is due to the spread of fish landing bases and playing an active role in promoting local fishery production, one of which is the Pondokdadap Coastal Fishing Port (PPP). The purpose of this study was to obtain information about the type and volume of fish caught landed at PPP Pondokdadap in May and June 2022. The method used by the author in conducting this research is through a qualitative descriptive approach. Based on the results of the research, during on May 2022 the production of fish caught landed at PPP Pondokdadap amounted to 1,813.2 tons. Whereas in June the catch amounted to 1,605.9 tons. There were 10 types of fish caught, dominated by tuna. There was a decrease in production volume of 207 tonnes or around 11%.

Exploring Mangrove Potential for Heavy Metal Phytoremediation Along Coastal Zones: A Study of Sempu Island Nature Reserve

Alfin Fatwa Mei Afifudin — 2023-09-27

Sempu Island Nature Reserve (CAPS) in East Java is one of the nature reserves in Indonesia. On this island, there are various native Indonesian vegetation, including mangroves. One of the biological functions of mangrove plants is as a shelter for marine species, wave breaker, and as a phytoremediator to prevent water pollution. This research is an exploratory study that aims to discover the diversity of mangrove species on Sempu Island and evaluate their potential as heavy metal phytoremediator using the literature review method. The exploration was conducted in July 2022 on three different locations on Sempu Island, which are Semut Bay, Ra'as Bay, and Freshwater area. In conclusion, eight species have been identified as true mangrove species in Sempu Island Nature Reserve, East Java. Such as Aegiceras corniculatum, Ceriops decandra, Exoecaria agallocha, Heritiera littoralis, Rhizophora apiculate, Rhizophora mucronata, Rhizophora stylosa, and Xylocarpus granatum, which originate from five families and six genera. Furthermore, Ceriops decandra has a conservation status of "Near Threatened." The study also revealed that the mangrove forest in Semut Bay offers better zonation compared to Ra'as Bay and Freshwater. Importantly, after conducting literature review, it shows that all mangrove species discovered have the potential to remediate waters polluted by heavy metals including Cu, Zn, Pb, Hg, Cd, Mn, Fe, and Cr.

Analysis of The Heavy Metal Content of Copper (Cu) in The Sediments and Leaves of The Avicennia marina Mangrove in The Wonorejo Mangrove Ecotourism Area, Surabaya

Chandra Bagas Swastika Bagas — 2023-09-27

Mangrove plants have the ability to accumulate heavy metals and help reduce the concentration level of pollutants in water. Sediment and leaves of Avicennia marina have the potential to be indicators of the heavy metal copper content in an area. The aim of this research is to determine the content of the heavy metal copper in soil sediments and leaves of the Avicennia marina mangrove in the Jagir River and Avur River in the Wonorejo Mangrove Ecotourism Area. The research method used is a descriptive method with a field survey. Sampling was calculated starting from the Jagir River flow in the Wonorejo Mangrove Ecotourism area (points A1, A2, A3) and the Avur River flow in the Wonorejo Mangrove Ecotourism area (points B1, B2, B3). Analysis of heavy metals in samples using Atomic Absorption Spectrophotometry (AAS). The test results showed that the highest content of the heavy metal copper (Cu) in the sediment and leaves of Avicennia marina Jagir River were 21.05 ppm and 16.10 ppm respectively. The highest content of the heavy metal copper (Cu) in the sediment and leaves of Avicennia marina in the Avur River in the Wonorejo Mangrove Ecotourism Area, Surabaya is 20.50 ppm and 17.10 ppm. The correlation coefficient for sediment and leaves of Avicennia marina in the Jagir River is 0.822 and in the Avur River is 0.829. The correlation between sediment and Avicennia marina leaves is positive with a very strong correlation.

Examination of Heavy Metals Lead (Pb) and Cadmium (Cd) in Fishery Products at the Quarantine Center, Quality Control and Safety of Fishery Products, Denpasar, Bali

Dwi Kurniawati — 2023-09-27

Fishery products in Indonesia serve as a vital source of nutrition for the local population and are significant export commodities. However, the presence of chemicals, particularly heavy metals such as lead (Pb) and cadmium (Cd), nearing safety thresholds, has led to export rejections. The aim of this research is to detect heavy metal contaminants in fishery products using Atomic Absorption Spectrophotometry (AAS). This research was conducted at the Fish Quarantine and Inspection Agency Denpasar, Bali. A total of 17 samples of fishery products intended for international export were analyzed. The results of the tests revealed that none of the samples exceeded the allowable threshold for heavy metal contamination.