Jurnal Ilmiah Samudra Akuatika

The Influence of Various Substrates on the Survival of Freshwater Lobster (cherax quadricarinatus) in the Open Transport System

Muhammad Nur — 2023-12-10

Lobster is one of the leading commodities in Indonesia, with export destinations to Japan, Hong Kong, the USA, and several other countries. In export activities, high mortality is caused by stress during transportation, causing farmers to suffer losses. This research can be an alternative solution to reduce the mortality rate in the transportation of crayfish, which is carried out using a variety of different substrates as transport media. This study aims to determine the effect of using different substrates as filler media for the transport container on the survival of crayfish, which were transported for 6 hours using different substrates, namely paper, raffia rope, coconut fiber, and cotton. The research method used was a completely randomized design. (RAL). The results of this study showed that the transportation of crayfish with different substrates showed survival results on 93% paper substrate, 90% raffia rope, 96% coconut fiber, and 100% cotton. After 10 days of maintenance, the survival of crayfish decreased because the crayfish experienced stress during the transportation test. This was due to a lack of oxygen and moisture in the substrate used during transportation. The highest post-maintenance survival occurred at P4 of 76% and P3 of 75%, while at P1 it was 57% and at P2 it was 67%.

Application of Fermented Starfruit (Asam Sunti) as an Antimicrobial in Keumamah Loin

Aida Aida — 2023-12-10

The purpose of this study was to determine the effect of sunti acid on the ALT and mold as an antimicrobial in keumamah loin. The research is experimental and uses a completely randomized design (CRD) with 4 treatments and 3 replications. Treatment 1 was soaking in sunti acid suspension as much as 10% (F1), as much as 20% (F2), as much as 30% (F3), and without immersion (F0). The parameters observed were ALT and mold. The results of these two studies were analyzed using one way analysis of variance (ANOVA) and continued with Duncan's test. The results showed that the highest ALT was in F0 (7.51x105CFU/mL) and the lowest was in sample F3 (6.36x105CFU/mL), then the highest mold value was in sample F0 (7.68x105CFU/mL), and the lowest was in F3 (6.46x105CFU/mL). The difference in the concentration of sunti acid suspension had a significant effect on the ALT and mold on keumamah loin at the 95% confidence interval

The Addition of Lamtoro Leaf Fermented (Leucaena leucocephala) in Artificial Feed Against the Growth of Milkfish (Chanos chanos)

Fendi Saputra Harefa — 2023-12-10

Milkfish is a leading commodity for Indonesian mariculture which is quite promising, so milkfish productivity must be increased. The problematic factor in cultivating milkfish is feed. Lamtoro leaves (Leucaena leucocephala) are a potential biological resource and have high protein content as a raw material for making feed. However, lamtoro has a high fiber content which can be reduced by fermenting using bio intan tani and attractants to cover the aroma of lamtoro which fish do not like. This research aims to test the effect of adding fermented lamtoro leaves to artificial feed on the growth of milkfish. The research was carried out on March 22 - April 22 2022 at Kembang Tani Farm Lancang Barat, North Aceh, Aceh. The research used a non-factorial Completely Randomized Design (CRD) consisting of 4 treatments and 3 replications, Treatments A, B, C and D with concentrations of 0%, 15%, 20% and 25% respectively. Based on the F test analysis (ANOVA), the results gave a significant effect on feed response, weight gain, length increase, aroma with a Sig value < 0.05 and gave results that had no real effect on survival rate and feed conversion value with a Sig value > 0. 05.

Utilization of Brown Seaweed as a Functional Dietary Salt and Source of Antioxidant Activity: A Review

Aisyah Astriani — 2023-12-10

Seaweed contains minerals and active compounds that have potential antioxidant, antihypertensive and other health benefits. As a result of this potential, seaweed is now widely used in the fields of medicine, cosmetics, fertilizer, bioenergy and food. In the food industry, seaweed can be used as raw material for making salt with low sodium and high potassium content so that it is beneficial for human health. This literature review presents several discussions and relevant literature sources regarding the manufacturing process and components contained in seaweed salt, such as heavy metal content, mineral composition, Na:K, NaCl ratio, and antioxidant activity. This literature study uses an exploratory descriptive approach by collecting information from a lot of previous research literature, in the form of national and international journals as well as online databases such as Researchgate, Directory of Open Access Journals and Google Scholar.

Implementasi Konsep Blue Economy di Indonesia sebagai Upaya Mewujudkan Sutainable Development Goals (SDgs) 14: Life Below Water

Aprilia — 2023-12-10

in the marine living sector, specifically in the capture and aquaculture sector, Indonesia is still experiencing difficulties in meeting sustainability standards. The sustainability value of Indonesian fisheries in the Ocean Health Index (OHI) is ranked 175th out of 220 countries in the food provision indicator which calculates food security from maritime resources with the ability to balance ecology and exploitation. The decline in ecological balance, such as the carrying capacity of the sea, is caused by conservation that is less oriented towards sustainable management. This research aims to describe the application of the blue economy concept in Indonesia in an effort to realize Sustainable Development Goals (SDGs) 14: life below water. The method used in this research is the literature study research method using descriptive analysis techniques. One of the uses of marine resources in Indonesia is in the fisheries and mining sectors. Capture fisheries production in Indonesia has increased every year, based on data from the Ministry of Maritime Affairs and Fisheries in 2019, the total production of captured fish in 2017 was 6,424,114 tonnes, in 2018 it was 6,701,834 tonnes, and in 2019 it was 7,164,302 tonnes. Meanwhile, the energy and mineral resources sectors still make a major contribution to national development. The oil and gas subsector has made the largest contribution to the energy and mineral resources sector over the last three years, with an average contribution of 30% to GDP. Through the blue economy concept, it is a concept that ensures the preservation of marine resources and the coastal environment and encourages the use of resources to improve the economy in the marine and fisheries industrial sector. The strategy for implementing the blue economy concept is certainly relevant to the Sustainable Development Goals (SDGs) point 14, namely life below water or marine ecosystems.