Habitus Aquatica

Microbiological Testing for Bacteria Salmonella sp. on Tilapia (Oreochromis niloticus) Using ISO 6579-1:2017 Method at UPTD PPMHP Banten

Tia Yusmila — 2025-02-10

Fish is a food source that is available in large quantities in Indonesia. Indonesia's fisheries production is recorded as occupying the third largest position with total production of 6.43 million tons in the world (FAO 2022). Tilapia is a perishable food so it needs to be handled well so that the freshness of the fish is maintained. The quality of freshness can include appearance, taste, smell and texture which will be consciously or unconsciously assessed by buyers or users of the product. Apart from the freshness and high nutritional value of tilapia, there are aquatic pathogenic microorganisms that can cause disease in humans, for example nausea, diarrhea and stomachache. The presence of microbes in fish can affect quality, such as reducing the freshness of fishery product quality and consumer welfare. Pathogenic bacteria that are often found include Salmonella sp. UPTD PPMH Banten is the organizer of quality control and safety of certified fishery products as well as a quarantine center for microbiological testing of pathogenic bacteria in fishery products, one of which is Salmonella sp. The purpose of the test is to find out the correct testing procedures and according to the procedures, to find out the results of the analysis of Salmonella sp. contamination. on tilapia. Microbiological testing method for Salmonella sp. bacteria. carried out by referring to the standard procedure ISO 6579-1:2017. Results of microbiological testing for Salmonella sp. with the addition of ATCC: 14028 Salmonella Typhi culture in tilapia fish showed positive results for Salmonella sp..

River Water Quality Status Based on Variation in Family Biotic Index in Jilu River Malang City - East Java

Muchammad Faruq Vikriansyah — 2025-02-12

Biological indicators utilize animals as markers to assess water quality in specific water bodies. Among various bioindicators, benthos is widely used for evaluating river water quality due to its sensitivity to environmental changes and its tendency to remain in specific areas. This study aimed to determine the water quality status of the Jilu River. Sampling was conducted using a purposive sampling method, with macroinvertebrates collected using a grab sampler to extract sediment from the riverbed. The sediment was then sieved to isolate benthic organisms from five locations with varying characteristics: industrial area, rice fields, natural riparian zone, residential area, and educational tourism park. The Family Biotic Index (FBI) was used to analyze the benthic macroinvertebrates, identifying 11 families: Thiaridae, Tubificidae, Chironomidae, Viviparidae, Simuliidae, Philopotamidae, Baetidae, Heptageniidae, Gecarcinucoidea, Caenidae, and Coenagrionidae. The Thiaridae family dominated across all locations. Based on FBI analysis, water quality along the Jilu River ranged across three categories: good, moderate, and very poor. The findings highlight the need for effective management strategies to mitigate pollutant loads and preserve the river’s water quality.

The Community Perception of Waste Management on The Belawan Coast, North Sumatra

Febya Rizki Hasibuan — 2025-02-13

The abundant natural potential in the Belawan coastal area has great opportunities for the development of various activities. In addition, the Belawan coastal area is also vulnerable to high pollution, especially because of its role in supporting the regional economy through sectors such as tourism, fisheries, transportation, and industry. Effective waste management is a special concern of the government along with maximum efforts in developing economic potential. Waste has become a global problem, especially in Indonesia with its increasing population growth. This research aims to analyze strategies for controlling pollution from waste in the Belawan coastal area. The method used is a Likert Scale to evaluate the community's perception of the issue of waste problems. On the economic aspect, the community assessed that waste management has not had a significant impact, but on the social aspect, waste management was rated positively with the highest score reaching 68,80 which was obtained on waste management activities that increased fraternal ties. The problem of low sanitation awareness is the main obstacle that requires solutions based on community participation in waste management.