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INDONESIA
Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan
Published by Universitas Lampung
ISSN : 2301816X     EISSN : 25797638     DOI : -
Core Subject : Education,
Other
Arjuna Subject : -
Articles 4 Documents
 1 
Search results for , issue "Vol 12, No 3 (2024): July 2024" : 4 Documents clear
STUDY OF WATER QUALITY AND POLLUTION LEVEL AT KETAPANG BEACH, PESAWARAN REGENCY, LAMPUNG Delis, Putu Cinthia; Yuliana, Darma; Kartini, Nidya
AQUASAINS Vol 12, No 3 (2024): July 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i3.p1563-1574

Abstract

Ketapang Beach, situated in Pesawaran Regency, Lampung, is a well-known tourist spot frequented by many visitors. The beach features a pier and a boat lane used for transporting tourists to nearby islands. Additionally, the surrounding area is home to residential communities and small-scale fish farming. Despite this activity, a comprehensive analysis of the beach’s water conditions had not been conducted previously, and there is limited information available on its water quality and pollution levels. Given the extensive human activity, it is crucial to monitor the water quality regularly, as these activities can significantly impact the ecosystem. This study collected data on several physical, chemical, and biological water parameters, such as temperature, total suspended solids (TSS), pH, salinity, dissolved oxygen, biochemical oxygen demand (BOD5), ammonia, nitrite, orthophosphate, lead (Pb), and total coliform bacteria. These parameters were measured to evaluate the water quality using the Pollution Index (IP), with reference to the seawater quality standards for marine tourism and aquatic life. The findings revealed that several parameters—such as salinity, dissolved oxygen, BOD5, ammonia, orthophosphate, and lead (Pb)—exceeded the recommended thresholds. Based on the Pollution Index assessment, the waters at Ketapang Beach were classified as moderately polluted.Keywords: Ammonia, pollution index, purposive sampling, water pollution.
STUDY ON MATERNAL TESTOSTERONE HORMONE IN FEMALE BROODSTOCKS AND EGG OF CATFISH (Clarias gariepinus) Rahmadiah, Triayu; Junior, Muhammad Zairin; Alimuddin, Alimuddin; Diatin, Iis
AQUASAINS Vol 12, No 3 (2024): July 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i3.p1520-1527

Abstract

This study aimed to track maternal testosterone hormone in catfish (Clarias gariepinus) eggs as an endogenous factor causing cannibalism. The fish used were female catfish broodstocks that had never been spawned before, with an average weight of 450.0±62.00 g and a total length of 35.4±3.53 cm. The male broodstock had an average weight of 810.0±85.00 g and a total length of 46.1±5.83 cm. The broodstock were maintained separately by sex in 3×1×1 m3 hapa nets, with a stocking density of two females and one male (2:1 ratio). The study employed a completely randomized design (CRD) with treatments consisting of females injected with propylene glycol (0 µg/L body weight) (A), females injected with the hormone 17α-MT (1 µg/L body weight) (B), and females injected with the hormone 17α-MT (2 µg/L body weight) (C), each treatment replicated three times. For the observation of hormone derivatives, egg samples were collected during the pre-spawning (day 90) and post-spawning (day 91) periods. The results indicated that the testosterone levels in the catfish eggs were higher during the pre-spawning period (A: 0.6±0.03 ng/mL; B: 0.7±0.07 ng/mL; C: 1.2±0.01 ng/mL) compared to the post-spawning period (A: 0.3±0.03 ng/mL; B: 0.1±0.00 ng/mL; C: not detected). This finding suggests that, even without the injection of the 17α-MT hormone, testosterone is present in catfish eggs, albeit in small amounts.Keywords: Aggressiveness, cannibalism, inherited hormones.
SPATIAL AND TEMPORAL PATTERNS OF FISHING USING PAYANG NETS IN STARING BAY, SOUTH KONAWE DISTRICT Safitri, Dita; Tadjuddah, Muslim; Mustafa, Ahmad; Alimina, Naslina; Arami, Hasnia
AQUASAINS Vol 12, No 3 (2024): July 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i3.p1528-1537

Abstract

Staring Bay is a semi-open bay that has a relatively large potential for fishery resources, so it is widely used by fishermen in South Konawe Regency to carry out capture fisheries activities. One of the fishing gear operated by fishermen is payang fishing gear. This fishing gear is operated to catch small pelagic fish. The purpose of this study was to determine the spatial and temporal patterns of fishing with Payang fishing gear in the waters of Staring Bay, South Konawe Regency. The research was conducted from December to January 2022 in the waters of Staring Bay, South Konawe Regency. The analytical method consists of catch composition analysis, CPUE analysis, correlation and determination analysis. Based on the research results, it was found that the fish catch was directly proportional to the distance from the fishing area. The distance of the fishing area that is far from land is 5.50 miles with a catch of 450.00 kg/trip, while the distance of the fishing area that is close to land is 3.35 miles with a catch of 82.50 kg/trip. Apart from that, fishing time also influences catch results, where the highest catch occurs in January reaching 211.91 kg/trip and the lowest catch occurs in December reaching 12.66 kg/trip.Keywords: Payang catch, spatial and temporal patterns, Staring Bay
CONCENTRATION OF BENZALKONIUM CHLORIDE IN DONAN RIVER CONTAMINATED WITH DOMESTIC WASTE Ayu, Nurina; Rahayu, Nur Laila; Setyastuti, Aryanti Indah
AQUASAINS Vol 12, No 3 (2024): July 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i3.p1538-1546

Abstract

The distribution of benzalkonium chloride (BAC) in inland waters has not been widely studied, despite its known dangerous effects on organisms. This study was conducted to determine the concentration of BAC in the Donan River, Cilacap, which receives significant input from domestic waste, particularly from the food industry. The study employed a quantitative descriptive method to analyze the presence of BAC in the river, with sampling stations selected using the purposive sampling method to ensure comprehensive coverage. Samples were collected from five different stations along the Donan River, revealing BAC concentrations at station 1 ranging from 0.128 to 0.140 µg/l, station 2 from 0.213 to 0.237 µg/l, station 3 from 0.163 to 0.190 µg/l, station 4 from 0.176 to 0.210 µg/l, and station 5 from 0.240 to 0.247 µg/l. These findings indicate that the concentration of BAC in the Donan River is comparable to levels found in other rivers worldwide, where the presence of BAC has been documented. The study highlights the need for regular monitoring of BAC levels in inland waters, given its potential ecological impacts. The elevated levels of BAC, especially in areas receiving substantial domestic waste, suggest that the discharge from the food industry and other domestic sources significantly contributes to the contamination.  Keywords: domestic waste, ecology, micro pollutants, toxicology, water pollution.

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