bluuebunny/crossref_metadata_2025_split huggingface dataset:
An algorithm for solving a 1D seismic data inversion problem on quantum or digital annealers in the presence of a priori information on layer parameters specified by arbitrary functions
Authors: Maletin Nickolay V , Eremenko Anastasiia M , Minaev Dmitry V 
Published: November 2024

Abstract
This work demonstrates the fundamental possibility of solving quite large-scale problems of seismic data inversion on modern hybrid (quantum-classical) and quantum-inspired annealers using the example of a one-dimensional problem for a horizontally layered model of the medium in the acoustic approximation. The optimization problem for the residual function of observed and model data is decomposed into three problems: the optimization problem for a simpler function of the same dimension, the problem of finding the minimum of a one-dimensional function, and the problem of calculating the terms of a simple recurrent series. Then, the optimization problem for a simpler function is transformed into a quadratic unconstrained binary optimization problem of such a dimension that its solution can be calculated on modern annealers.
Length-weight relationship and condition factor of sagor catfish (Hexanematichthys sagor Hamilton, 1822) in the coastal waters Muara Angke and surrounding area, Jakarta Bay
Authors: Sinaga J , Sulistiono  , Mashar A 
Published: November 2024

Abstract
Sagor catfish is a demersal species with significant potential due to its large size and economic value. It is primarily found in the waters off Muara Angke coastal waters and the surrounding area of Jakarta Bay. Sagor catfish inhabit muddy seas, coastal areas, and estuaries, often located downstream of rivers up to the high tide mark. This research aims to examine the relationship between length and weight and describe the condition factors of sagor catfish in coastal waters and the surrounding area of Jakarta Bay. Fish sampling was conducted once a month from October 2023 to March 2024. A total of 229 fish were caught using gillnets with mesh sizes of 3 inches. The total length and weight of the sample fish ranged from 167 to 540 mm and 43.2 to 2000 g respectively. The fish length-weight relationships are as follows: W = 5 x 10-6L3.1085 (males) and W = 2 x 10−6 L 3.2456 (females). Fish condition factors ranged from 0.9318-1.2176 (male) and 0.8659-1.2330 (female). These results show that the fish growth pattern is positive allometric and the condition of the fish varied higher value.
Growth type of Diadema setosum on two different ecosystems in Spermonde Archipelago, Indonesia
Authors: Moka W , Omar S B A , Effendy M I , Parawansa B S , Suwarni  
Published: November 2024

Abstract
This study aims to analyze the test size and growth type of sea urchins (Diadema setosum) on the islands of Kodingareng Lompo and Kodingareng Keke, Makassar City, South Sulawesi Province. This research was conducted for two months, from August to September 2022 on Kodingareng Lompo and Kodingareng Keke Islands, Makassar City, South Sulawesi Province. Kodingareng Lompo represent the seagrass bed ecosystem and Kodingareng Keke represent the coral reef ecosystem. The number of sea urchins caught during the study was 633 individuals in seagrass bed in Kodingareng Lompo and 731 individuals in reef flat in Kodingareng Keke Island. Sample measurement of sea urchins was carried out in situ on the island. Data analysis to determine the size distribution was carried out using a quantitative descriptive approach, including body diameter measurements. The results shows that the test diameter vary from 12,39 - 48,94 mm. The growth pattern of D.setosum sea urchins based on sampling time and station on Kodingareng Keke and Kodingareng Lompo Islands is negative allometric, namely the increase in shell diameter is faster than the increase in weight.
Normative review on mitigation and adaptation on climate change related disaster: case study of sea level rise in Lae-Lae Island
Authors: Maskun  , Achmad  , Naswar  , Mukarramah Nurul Habaib Al , Paliling Valeria Erika Sari , Angi Josse Charmario Wara , Putri Nagida Amalia , Amir Mohammad Akhsan Adhyatma , Assidiq Hasbi 
Published: November 2024

Abstract
The sea level rise that occurs rapidly on the shores of Lae-Lae Island, South Sulawesi, is reported to be increasing. A study from National Oceanic and Atmospheric Administration estimated that in the next 80 years, the global sea level will be to 8-9 times more than what it is today. National law regarding the management of coastal areas and small islands may exist, but it has not yet been translated into a regional government regulation regarding the current situation. This study aims to address two questions: How does international laws address sea level rise? How does national law regulate mitigation and adaptation on sea level rise that occurred in Lae-Lae Island, South Sulawesi? This study utilizes normative legal analysis by reviewing relevant climate change mitigation and adaptation international and national legal instruments through a statutory approach. This research reveals that regional level regulation is mitigating and adapting to sea level rise as a climate change related disaster in Lae-Lae Island. Therefore, it is recommended that the government prioritize the legislation process using top-down and bottom-up schemes to fix the ineffectiveness that contributes to disaster risk reduction.
Variation of Azolla (Azolla pinnata) fermentation for maggot cultivation as a feed preparation for climbing perch (Anabas testudineus Bloch)
Authors: Siswanto  , Hanafie Agussyarif , Murjani Akhmad , Redha El , Rukmini  , Fitriani Aida , Syifa Nor 
Published: November 2024

Abstract
Maggot is a good natural food for /ish because it has a high protein content, namely in the range of 30-45%. Azolla pinnata is rich in protein, essential amino acids, vitamins, and minerals and is often used as animal feed. The aim of this study was to analyze variations in fermented Azolla pinnata media for maggot cultivation as a feed preparation for climbing perch (Anabas testudineus Bloch). This research used a Completely Randomized Design (CRD) with four treatments and three replications: Treatment O (Azolla 0%, tofu dregs 80%, and bran 20%), Treatment A (Azolla 10%, tofu dregs 70%, and bran 20%), Treatment B (Azolla 20%, tofu dregs 60%, and bran 20%), and Treatment C (Azolla 30%, tofu dregs 50%, and bran 20%). The results of this study showed that the best biomass was in treatment A, with an average relative weight of 421.33%; the best population growth was in treatment B, with a population of 1,980 individuals; the best relative length was in treatment O, with an average of 255.33%; and weight growth was the best climbing perch in treatment A, with a weight gain of 1.3 g. The use of Azolla pinnata combined with tofu dregs and bran resulted in the highest relative weight growth and maggot population compared to media without using Azolla pinnata.
Post-moratorium Tiger Prawn (Penaeus monodon) Double Rig Trawl catch in the Arafura Sea
Authors: Mustasim  , Lelono Tri Djoko , Setyohadi Daduk , Susilo Edi 
Published: November 2024

Abstract
In 2021, trawling operations in the Arafura Sea were permitted to resume after a moratorium of several years. Therefore, this research aimed to provide up-to-date information to support sustainable tiger prawn management. Data were collected through field surveys and fishing trips aboard a double rig bottom trawler over a one-year fishing cycle (12 months) from February 2023 to January 2024. The monthly tiger prawn catch volume and size composition were recorded and analysed descriptively. The average daily catch was highest in November (803 kg/day) and lowest in May and June (86 kg/day and 64 kg/day, respectively). Tiger prawn weight range was 15-107 g. The most frequently caught size classes were large T-18 (mean 83.3 g/prawn, total volume 13,380 kg) and small T-100 (mean 15 g/prawn, total volume 861 kg). The predominant processed (headless) prawn size classes were L (1,488 kg) and S (614 kg). From December to January, the percentage of small prawns (T-60 to T-100, S and SS classes) increased significantly; therefore, a closed fishing season covering these months is recommended.
Nutrient content of various water-based alternative protein sources as candidates for raw material feed in aquaculture
Authors: Saputra Suryadi , Antoro Suci , Dhoe Silfester Basi , Rajamuddin Muh. Alias L. , Setiawati Mia , Suprayudi Muhammad Agus 
Published: November 2024

Abstract
In aquaculture, fish meal is the primary feed ingredient. The rapid expansion of the aquaculture industry drives up the demand for fish meal, leading to a rise in its price, which in turn escalates aquaculture’s operational costs. The purpose of this research is to evaluate water-based alternative protein sources as candidates for raw material feed in aquaculture. Microalga (Tetraselmis chuii, Spirulina platensis, and Chaetoceros calcitrans), biofloc, and klekap were evaluated using proximate analysis, amino acid analysis, and fatty acid analysis. The close study showed that the microalgae T. chuii meal (TcM), S. platensis meal (SpM), and biofloc meal (BFM) all had more than 20% protein and the same amount of amino acids as fish meal and soybean meal. BFM and C. calcitrans meal (CcM) contain essential fatty acids required by both freshwater (linoleic fatty acid) and marine fish (EPA and DHA). Meanwhile, TcM, which was the only raw material, contained linolenic acid but no DHA, whereas SpM and klekap meal (KM) contained only linoleic fatty acids.
Evaluation of blood glucose concentration, hepatosomatic index, and liver histology of golden rabbitfish Siganus guttatus at different levels of fermented Gracilaria verrucosa dietary
Authors: Mulyaningrum Sri Redjeki Hesti , Haryati  , Aslamyah Siti , Laining Asda , Suwoyo Hidayat Suryanto 
Published: November 2024

Abstract
The study aimed to evaluate the effect of fermented Gracilaria verrucosa dietary on blood glucose level, hepatosomatic index, and liver histology of golden rabbitfish Siganus guttatus. The inclusion level of fermented G. verrucosa on rabbitfish diet was investigated namely: 0% (G0), 20% (G20), 25% (G25), and 30% (G30). The feeding experiment was conducted in eight weeks with three replicates for each treatment. Juvenile golden rabbitfish were stocking in a fiber tank with 15 fish/100 L density. The concentration of blood glucose, hepatosomatic index, and liver histology of golden rabbitfish was investigated. The hepatosomatic index data was analysed statistically using analysis of variance (ANOVA), and the blood glucose concentration and liver histology data were analysed descriptively. Fermented G. verrucosa resulted an increasing of blood glucose levels of rabbitfish. The blood glucose levels in control increased within 6 hours after feeding, reaching an average of 48±15 mg/dL, G20 showed an increasing of blood glucose level within 3 hours after feeding (71±6.56 mg/dL), meanwhile G25 and G30 exhibited an increasing in blood glucose levels within 6 hours after feeding, measuring 68.67±34.08 mg/dL and 48.33±17.39 mg/dL, respectively. The varying level of G. verrucosa inclusion did not have a significant impact on the hepatosomatic index (P>0.05), which ranged from 0.99% to 1.13% among all treatments. The liver histology analysis revealed there was no serious problem on liver tissue. The present study demonstrates that fermented G. verrucosa can be effectively used as an energy source without causing any adverse effects on rabbitfish’s liver.
Effect of yellow and blue light on the size of target fish caught by fixed lift net in Pangkep Regency, Indonesia
Authors: Tawil M F , Kurnia M , Jaya I , Amir M I , Adam  
Published: November 2024

Abstract
Fishermen have begun to adapt fixed lift nets by using different coloured lights to attract fish. This study examined the effect of light colour on catch, in particular the size structure of the main target commodity, sardines (Sardinella sp). The study was conducted in Pangkep Regency, South Sulawesi, Indonesia from August to November 2021 using an experimental fishing method. The paired-samples T-Test (2-tailed, 95% confidence level) was applied to determine the effect of lamp light colour on fish size. A total of 1,440 sardines caught during 32 fishing trips were measured (fork length, FL) and weight. Total catch volume was greater using yellow light than blue light. The mean TL of sardines caught was significantly (p = 0.000 < 0.05) larger using yellow light (10.48 cm) than blue light (8.70 cm). We conclude that the colour of the lights used to attract fish can significantly affect the size of sardines caught by fixed lift nets.
Antibacterial activity of Kefa forest honey against Vibrio alginolyticus and Aeromonas hydrophila and study of its physical and chemical characteristics
Authors: Salosso Yuliana , Sunadji  , Liufeto Franchy Christian , Fransira Immaria , Djonu Asriati 
Published: November 2024

Abstract
This study aims to examine the antibacterial activity of Kefa forest honey challenged on Aeromonas hydrophila and Vibrio alginolyticus, two pathogenic bacteria that plague fish farmers. The study on the antibacterial activity of the honey used the disc method with dilution. A spectrophotometer was used to test the total sugar content, gravimetric method to determine the water content and pH meter to measure pH. Furthermore, proximate analysis and Vitamin C followed the AOAC method, namely Kjedahl method for protein, fat soxhlet method, ash and water gravimetric method, vitamin C by titrimetric method with Iodine and antioxidant measurement using DPPH method. The results showed that Kefa forest honey has antibacterial activity against A hydrophila and V. alginolyticus bacteria at concentration from 25-75%. The antibacterial activity of honey concentrations of 50% and 75% was not significantly different so that to streamline the use of honey as an antibacterial in fish farming, 50% concentration of Kefa forest honey could used. Honey at 50% concentration contains 36% sugar, 52.92% water, pH 3.92, Aw 0.903 which allows honey to still have antibacterial activity and honey also has potential as an antioxidant because of its vitamin C and antioxidant content. Honey is full of nutrients because it is high in carbohydrates and water as well as low in protein and fat. In addition, honey also contains amino acids and the highest amino acid content of honey is L-Threonine, followed by L-Proline.
The ENSO-IOD effects on Yellowfin tuna (Thunnus albacares) in Eastern Indian Ocean - Off Coast Java
Authors: Istnaeni Z D , Hidayat R , Zainuddin M , Gaol J L , Fitrianah D 
Published: November 2024

Abstract
The eastern Indian Ocean (EIO) is influenced by two climate phenomena, the Indian Ocean Dipole (IOD) and the El-Niño Southern Oscillation (ENSO), which affect the presence and abundance of yellowfin tuna (Thunnus albacares). Monthly satellite data from the Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua L3 of sea surface temperature (SST) and sea surface chlorophyll-a (SSC), along with the yellowfin longline catch data, were used to investigate the oceanographic conditions and their impact on yellowfin tuna catch in the EIO, performed by Generalized Additive Model (GAM). Furthermore, the Dipole Model Index (DMI) and oceanic niño index (ONI) were used to measure the IOD and ENSO indications. The results showed that SST + SSC had the best performance with an AIC of 1095.513, with SST becoming the most influential factor with a p-value of 0.0473. Yellowfin tuna were mainly caught in the SST range of 28-28.5°C and SSC of 0.05-0.10 ml/m3. From 2009 to 2010, moderate El Niño, moderate El Nina, and weak positive IOD occurred in the study area, and the yellowfin hook rates declined when the IOD was positive with El Niño.
Concentration of mercury (Hg), lead (Pb) and copper (Cu) detected in Tallo River sediment
Authors: Lalombo Yulia Indasari , Yaqin Khusnul 
Published: November 2024

Abstract
This study aimed to determine the concentrations of metals in the sediment hotspots of the Tallo River in the Manggala Subdistrict of Makassar, South Sulawesi. Metals such as mercury (Hg), lead (Pb), and copper (Cu) were selected for analysis because they have the potential to act as sources of metal pollutants in the Tallo River. Sediment sampling was conducted at three stations, with three replicates at each station. The three stations, were determined based on the presence of polluted water. Subsequently, the samples were analyzed in accordance with the APHA 23rd Edition (2017) method 3112; 3111B standard. The results demonstrated notable variations in the metal concentrations among the sampling sites. The average Hg concentration at all stations was relatively low, with an average of <0.0001 mg/kg. The highest mean concentration of Pb (p<0.05) was found at station 2, which was an area polluted by residential waste, with a value of 34.38±0.55 mg/kg. The highest mean concentration of Cu (p>0.05) was 35.82±12.11 mg/kg, with this value being observed in all stations. The concentrations of Hg, Pb, and Cu did not exceed the threshold levels permitted by the quality guidelines of the Australian and New Zealand Environment and Conservation Council and the Agriculture and Resource Management Council of Australia and New Zealand (ANZECC and ARMCANZ) in 2000 and most recently the United States Environmental Protection Agency (USEPA) in 2004.
Normative legal analysis on the consequence of oil spill on aquatic pollution: Case study of Bintan oil spill
Authors: Maskun  , Achmad  , Naswar  , Paliling Valeria Erika Sari , Amir Mohammad Akhsan Adhyatma , Angi Josse Charmario Wara , Putri Nagida Amalia , Mukarramah Nurul Habaib Al , Assidiq Hasbi 
Published: November 2024

Abstract
The oil spill in Bintan, Indonesia has become one of many oil spill cases leading to aquatic pollution in over 10 years. However, the existing law has not yet been able to address this issue. This research attempts to address two questions; How does international and Indonesian law regulate marine pollution? How does the current regulation apply to the oil spill that occurred in Bintan, Indonesia? This research utilizes normative legal analysis conducted through reviewing international and national legal instruments concerning climate change and health through a statutory approach. This research shows that the current regulation concerning marine pollution is not yet effective to prevent, monitor and mitigate marine pollution issues which led to the occurrence of oil spill in Bintan Island, Indonesia.
Bioaccumulation of heavy metals in Bungo Fish (Glossogobius giuris Hamilton, 1822) in Lake Tempe, South Sulawesi, Indonesia
Authors: Kantun W , Fatma  , Moka W , l Rapi N , Awaluddin  
Published: November 2024

Abstract
Heavy metals are a well-known indicator of water pollutants that can adversely impact on living organism. The aims of this study to probe the bioaccumulation of mercury and cadmium in Bungo fish that live in Lake Tempe. The study used purposive sampling, that is collecting the fish from Lake Tempe situated in Wajo, Sidrap and Soppeng. Three-month research, starting from June to August 2021. Samples were tested in detection work by Atomic Absorption Spectrophotometry (AAS). The bioaccumulation of heavy metals in Bungo fish varied according to the sampling locations. The average bioaccumulation of mercury in Wajo, Soppeng and Sidrap was 0.066 ± 0.005 mg/kg; 0.048 ±0.006 mg/kg; and 0.059 ± 0.002 mg/kg, respectively. The average bioaccumulation of cadmium in Wajo, Soppeng and Sidrap was 0.016 ± 0.001 mg/kg; 0.030 ± 0.009 mg/kg; and 0.025 ± 0.005 mg/kg, respectively. Accordingly, Wajo had the highest degree of mercury bioaccumulation, while Soppeng had the highest degree of cadmium bioaccumulation. In other words, Wajo was the most mercury-polluted area, and Soppeng was the most cadmium-polluted area for Bungo fish. However, the concentration of these substances in both areas remained below the maximum limits for water pollution.
Preliminary study of marine environmental parameters in the southeastern coastal area of Bali, Indonesia
Authors: Widyananto Prastyo Abi , Badriana Mochamad R , Oktaviani Diyah F , Radjawane Ivonne M 
Published: November 2024

Abstract
Southern part of Bali island is famous for its fascinating area, so many marine tourism activities and coastal settlements exist in this area. Therefore, a preliminary monitoring may be beneficial to see the current sea condition around this area. Three places are considered, namely Nusa Dua (ND), Sanur (SN), and Nusa Lembongan (NL). Field activity consists of measuring ocean parameters and collecting water samples which was carried out on 30 September-4 October 2022. Ocean parameters investigated such as temperature, salinity, pH, turbidity, DO, and heavy metal (Cd, Cu, Ni, Pb, Hg). Additional data of physical oceanography from secondary data or references also w taken into account. The measurement data compared to see its conformity with the national standard of seawater for marine tourism. Based on the result, most of the parameters are within the threshold and still considered as good condition.
Introduction
Authors: Chong Nicholas 
Published: November 2024

AbstractThough Beethoven was nominally a Catholic, most commentators have claimed that his true beliefs were characterized by the “enlightened” rejection of traditional Christian dogma—an assumption that has also been tied to the critical marginalization of his sacred compositions other than the Missa solemnis. Attempts to separate Beethoven from Catholicism have tended, however, to rely on an overly simplistic understanding of the Enlightenment as intrinsically opposed to Christianity, especially the Catholic Church. Such an understanding overlooks the importance of a movement known as the German Catholic Enlightenment, which aimed to reconcile Catholicism with self-consciously enlightened ideas. Beethoven’s attitude to religion was heavily influenced by this movement, though in some respects he also seemed open to more “conservative” varieties of Catholicism. To reconsider the received wisdom concerning Beethoven’s religious beliefs builds on previous efforts to challenge the long-standing but still-influential myth of Beethoven as secular liberal Enlightenment hero.
Beethoven and Johann Michael Sailer
Authors: Chong Nicholas 
Published: November 2024

AbstractThis chapter investigates Beethoven’s connection to the Bavarian Catholic theologian Johann Michael Sailer, one of the most prominent figures in the German Catholic lands during the composer’s lifetime. Beethoven is recorded as having expressed admiration for Sailer and also made unsuccessful plans for his nephew Karl to study with the theologian. In addition, he owned three books by Sailer—Goldkörner der Weisheit und Tugend, Friedrich Christians Vermächtniß, and Kleine Bibel für Kranke und Sterbende und ihre Freunde—along with Sailer’s translation of Thomas à Kempis’s medieval devotional text The Imitation of Christ. The chapter explains how these texts reflect Sailer’s theological outlook, which can be considered a centrist blend of progressive elements from the Catholic Enlightenment with more conservative elements from the Catholic Restoration. Sailer’s moderation in this regard resonates with evidence of Beethoven’s own views discussed in previous chapters and very likely explains why Beethoven found him an attractive figure.