2024 Research | SDG 14 – Life Below Water

Research Programs

Rearing Performance of Pangasius (Pangasius sp.) Fed Diet with Different Levels of Amaranthus spinosus Stalk Meal

Proponents: Isagani P. Angeles, Jr., Laila M. Gallego

Abstract

The study evaluated the rearing performance, percentage survival, and cost and return analysis of Pangasius sp. grow-out production fed diet with different levels of Amaranthus spinosus stalk meal (ASSM). Pangasius sp. were fed diet with ASSM25 (25% ASSM), ASSM75 (75% ASSM) and a diet without ASSM served as control (C). Results revealed that fish fed diet with ASSM25, C, and ASSM50 has no significant difference in the final weight (Wf), weight gain (WG), and specific growth rate (SGR). For FCR, ASSM25 is lower than that of ASSM75 but comparable to C and ASSM500. There was also no significant difference in the percentage survival (SUR) of Pangasius sp. after ten weeks of rearing. Overall, results suggested that supplementation of ASSM could be a potential feed ingredient for the diet of Pangasius sp. up to 50% of the inclusion level. This data promotes sustainable aquaculture practices and should be considered in pangasius rearing.

AI-BASED PH LEVEL DETECTOR AND NEUTRALIZER OF FISH PONDS

Proponents: Engr. Maribel S. Abalos 1 and Orfel L. Bejarin 2

Abstract

Because of its marketability and nutritional worth, tilapia is a popular and easily bred species, and the Philippines’ fisheries industry makes a substantial economic contribution. Nevertheless, a lot of fish business owners view aquaculture as a supplemental source of revenue, which leads to inconsistent feeding and insufficient water quality monitoring. Water’s pH, which should be neutral at 7.0, can change for a number of reasons, such as pollution and environmental variables, which can have a negative impact on fish productivity and health. Reduced yields can result from fish stress and injury caused by low pH levels. This study emphasizes how important it is to keep an eye on water quality, especially pH levels, in order to maximize the results of fish farming. Between 2019 and 2020, aquaculture production in Region 2 grew by 4.1%, however commercial fishing saw a decrease. Because they are straightforward, traditional monitoring techniques are still widely used; among fish producers, visual observation is the most popular method. This project created an Arduino-based pH level detector and neutralizer to overcome the difficulties in keeping an eye on the pH levels in fish ponds. This device provides real-time feedback for any necessary modifications while automating the measurement of water’s acidity and alkalinity. The results showed notable variations in acidity and demonstrated that the developed model successfully assesses pH values across a range of samples, including distilled water, tap water, soft drinks, and alcohol. The results highlight how crucial it is to combine contemporary technology with conventional methods in order to enhance aquaculture water quality monitoring and management and guarantee the best possible conditions for fish sustainability and health. In order to improve aquaculture practices in the Philippines and strike a balance between ecological stability and economic growth, this research promotes regular monitoring and resource provision.