bluuebunny/crossref_metadata_2025_split huggingface dataset:
The community structure of giant clam in the waters of Morella village, Leihitu region, Central Mollucas Regency
Authors: Mamesah J A B , Uneputty P A , Rima Z A 
Published: June 2021

Abstract
Kima (giant clams) are molluscs that inhabit the ocean floor on the reef and sand substrate. There are 7 species found in the waters of Indonesia namely Tridacna maxima, T. squamosa, T. gigas, T crocea, T derasa, Hippoppus hippoppus and H. porcelanus. Kima are included among the protected biota, both nationally and internationally. This research was conducted on the waters of Morella Village, Leihitu Region, Central Mollucas Regency. The study sites are divided into two stations: Station 1 is the waters of Mahiwa Bay and Station 2 is the waters of Tihlepuai Bay. Station 2 is a Kima farm established in December 2016 by the Minister of Marine Affairs and Fisheries. Samples were collected by using the belt transect method. The results obtained are as follows. In Station 1, the 2 species found are T. maxima and T. squamosa, while the 4 species found in Station 2 are T. maxima, T. squamosa, T crocea and H. hippoppus. The highest value, abundance, density, and frequency of occurrence were represented by T. squamosa. The diversity and homogeneity indexes in the waters of Morella village were in the high and medium levels, respectively. The result of this research will add data contribution in determining strategies for kima conservation in Mollucas.
The potential used of Amphipod-Crustacea as live food for blue swimmer crab, Portunus pelagicus crablet
Authors: Herlinah  , Sulaeman  , Gunarto  
Published: June 2021

Abstract
The mortality rate at crablet stage of blue swimmer crab, Portunus pelagicus during weaning is still high. Insufficient in food availability can be a trigger to high cannibalism. On the other hands, the used of artificial feed often causes a decrease in water quality. Information on the use of live feed during the crablet weaning is not yet available. This study aims to look at the opportunity to use Amphipod-crustacea, Grandidierella megnae (Giles, 1888) as a live food at crablet-4 (C4) stage of swimmer crabs. The consumption rate of C4 against amphipod was tested at various density levels using glass containers with 1L volume. Each container was filled with 0.5 L of sterilized sea water with 30 ppt salinity and included one crab of C4. Five levels of amphipod density applied were 5, 10, 15, 20, and 25 ind.L−1 with 10 replications each. The amount of amphipod consumed by a crablet during 10 hours of exposure is recorded and presented in tabular and graphical form. The results showed that the consumption rate of C4 against amphipod increases significantly (P<0.05) as the density of amphipod increase and reach the maximum value at 10 ind.crab−1. Based on the consumption rate of C4 against amphipod, can be concluded that the G. megnae (Giles, 1888) is suitable as a live food during weaning of swimming crab. However, more detail about the effect of amphipod on growth rate of swimming crab is still need more detail study.
High density aquaculture of white shrimp (Litopenaeus vannamei) in controlled tank
Authors: Suwoyo H S , Hendrajat E A 
Published: June 2021

Abstract
The study was aimed to evaluate the growth, survival rate and production of white shrimp (L. vannamei) culture under different stocking density in controlled tank. This research was conducted at Experimental Pond Installation. Research Institute for Coastal Aquaculture and Fisheries Extension in Maros Regency, South Sulawesi. Indonesia. Juveniles of white shrimp size in weight 0.14 g/ind were cultured for 70 days in three different stocking densities: 100, 200 and 300 ind/m3 in a total of nine fibre tanks sized of 2 m3. The study used Completely Randomized Design (CRD). with three replications for each treatment. The parameters observed were growth rate, survival rate, production, feed conversion ratio of white shrimp and water quality condition. The results showed that the different stocking density had a significant effect (P <0.05) on growth, survival rate and production of white shrimp. The final weight and absolute weight of vaname shrimp decreased as density increased to 300 ind/ m3. The final weight of vaname shrimp in treatments A. B and C were 13.70 g/ind, 12.27 g/ind and 10.90 g/ind respectively. Survival rate and production of white shrimp in this study ranged from 80-95% and 1.24-2.42 kg/m3 respectively. Water quality measured during the experiment was suitable for the growth of white shrimp.
Effect of different doses of 17α-methyl testosterone (17-α MT) hormone on male broodstock of tiger shrimp Penaeus monodon sperm quality
Authors: Mulyaningrum S R H , Parenrengi A , Lante S , Tenriulo A , Daud R , Usman  
Published: June 2021

Abstract
This study aimed to determine the optimum dose of 17α-MT hormone to improve male shrimp P. monodon sperm quality. Male tiger shrimp P. monodon originated from pond with an average weight (57.56 ± 12.79) g were transferred to hatchery and acclimated for 1 week prior treatments. Shrimps were set up in controlled tanks in 5 shrimps/tank density. Treatments were 17α-MT hormone induction in different doses, i.e. A = control (ablation); B = 200 ng/100 g of broodstock body weight (BW); C = 300 ng/100 g BW; and D = 400 ng/100 g BW. The 17-α MT hormone was given using injection method every 7 days in 3 times frequency. Research was completely randomized designed with 4 treatments and 2 replications. Observed variables were: the amount of shrimps which carried spermatophores, weight of spermatophores, quantity of spermatozoa, spermatophores histology and water quality. Data of the amount of shrimps which carried spermatophores, weight of spermatophores and the quantity of spermatozoa were analyzed using analysis of variance (ANOVA), while data of spermatophores histology and water quality were analyzed descriptively. The amount of shrimps which carried spermatophores and weight of spermatophores were not significantly different (P>0.05), but spermatozoa quantity was significantly different (P<0.05). The highest spermatozoa quantity was obtained at 300 ng/100 g BW dose in fourth gonad maturity stage. The 17α-MT in 300 ng/100 g BW was the optimum dose for P. monodon sperm quality improvement and it could be applied to replace ablation method.
Identify and characterize the SNP markers for traceability of scallop spiny lobster Panulirus homarus (Decapoda, Palinuridae) in Vietnam
Authors: Nhon N N T , Sang T Q , Chau N M , Binh D T 
Published: June 2021

AbstractLobster is an aquatic species of ecological and economic importance. In Vietnam, ornate spiny lobster (Panulirus ornatus) and scallop spiny lobster (P. hormatus) are among the main species of aquaculture in Vietnam. Demand for lobster products domestically and internationally is increasing, as in the US, Japan and China markets. Today, consumers are more aware of product brands, food safety and hygiene, so product traceability is essential to protect consumers and businesses. The DNA markers are widely used for commercially traded seafood traceability. Among that, Single Nucleotide Polymorphisms (SNPs) have been shown to be robust markers, and offer high reliability. EzRAD sequencing is applied to detect potential SNPs that are characteristic forP. homaruspopulations in Vietnam and Sri Lanka. Through 211 valid SNPs, we detected and 12 SNPSoccurring in Vietnam population, and designed 8 primer pairs to amplified 80-130 bp SNPs products. PCR optimization allows us to select 2 SNPs serving the traceability of VietnameseP. homarus. Further need to more population sampling, and whole genome sequencing in order to develop SNPs panel to seeking the origin of lobster seafood products.
The role of seagrass ecosystem in small islands as a blue carbon in climate change mitigation in Indonesia (case study: Lembeh Island, Bitung Regency)
Authors: Rustam A , Suryono D D , Daulat A , Sudirman N 
Published: June 2021

Abstract
Climate change phenomenon has occurred equally and globally all over the world during the last century, including Indonesia, which known as an archipelagic country with more than 17.000 islands, where most of the island considered as small islands. Lembeh Island known by its high biodiversity in marine resources, especially coral reef which associated with other coastal ecosystems such as mangrove and seagrasses and create a healthy environment. Seagrasses as a blue carbon ecosystem can be functioned as a carbon absorber from the atmosphere and storage in the sediment, and supported the climate change mitigation act in Indonesia. Based on field observation, Lembeh Island region has seven species from possible twelve seagrass species found in Indonesia. Enhalus acoroides and Thalassia Hemprichii dominated the seagrass existence in Lembeh Island with certain characteristics live in a sandy substrate, muddy area or coral reefs. Seagrass in Lembeh Island has potency on biomass carbon as much as 0.96 ± 1.327 MgCha−1 (mostly autochthonous), which lower than the potency of carbon stored in sediment reached more than 40 MgCha−1 (mostly allochthonous). Seagrass ecosystem play an important role in climate change mitigation act and should be supported, developed and collaborated with other coastal ecosystems sucha as coral reefs and mangroves.
Prediction of sediment quality based on the concentration of heavy metals Cu, Zn, and Ni in Jakarta Bay using the index analysis approach
Authors: Edward  , Triandiza T , Rugebregt M J , Opier R D A 
Published: June 2021

Abstract
The purpose of this study was to predict the concentration of heavy metals Cu, Zn, and Ni in sediments and to predict the sediment quality based on an index analysis approach (contamination factors, geo accumulation index, pollution load index, ecological risk index, and potential ecological risks index). The sediment sample taken by using a sediment grab in Jakarta Bay. Heavy metal content measured by using Atomic Absorption Spectrophotometer (AAS). The results showed that the Cu range from 14.79 to 55.36 µg.g−1 with an average of 33.178 µg.g−1, Zn range from 82.05 to 441.91 µg.g−1 with an average of 197.484 µg.g−1 and Ni range from 16.47 to 22.09 µg.g−1 with an average of 19.328 µg.g−1. The mean levels of Zn and Cu were still lower than the threshold value of sediment quality, i.e., 108 µg.g−1 for Cu, 271 µg.g−1 for Zn, while for Ni is higher, ie, 16 µg.g−1. The results of the index analysis showed that the average value of contamination factor (CF) of Cu, Zn, and Ni were 1.614, 2.018, Ni -0.138 respectively (1 < CF < 3, moderate contamination), the average of geo accumulation index values of Cu, Zn, and Ni were -0.136, -1.010, -0.138 ((Igeo < 0, unpolluted) respectively. The average Pollution Load Index value (PLI) is 1.637 (PLI > 1); based on the PLI index, sediments are categorized as polluted by Cu, Zn, and Ni. Based on ecological risk index (Er) and potential ecological risk index (RI), sediment includes low risk ecology (Er < 40) and low potential risk ecology (RI<150).
The performance of coral nursery with rope tree techniques in the moderate sea current environment: Morotai pilot project
Authors: Mukharror D A , Fadli R , Ghiffari F 
Published: June 2021

AbstractAcknowledged as the famous destination for shark diving tourism, Morotai waters poses increasing coral reef degradation risk in recent years. Coral restoration program is needed to battle the decreasing coral cover in this waters. Instead of garnering the fragment directly from healthy coral reef habitat, which is potentially damaging the healthy coral reef, a coral nursery can be proposed as an alternative method to maintain the pristine environment of coral reef habitat in Morotai waters with future coral restoration programs. Coral rope tree nursery has proven to be effective at achieving growth speed compared to other coral nursery methods as well as high performance to withstand moderate current risk. Performance of a pilot project of coral tree rope nursery in Morotai waters has been studied for more than five months and it shows as promising method for future massive nursery.
Modeling of tide in the Java sea coastal area between Jakarta and Cirebon, Indonesia: bathymetric data source and sensitivity tests due to bottom roughness and boundary condition
Authors: Nuraghnia A , Windupranata W , Hakim A R , Nusantara C A D S , Poerbandono  
Published: June 2021

Abstract
With the on-going construction of deep water port in Patimban area, a more dense marine traffic is expected to occur in the coastal belt between the ports of Jakarta and Cirebon. Precise prediction of tide is inevitably becoming more important in order to maintain safe navigation. The purpose of this work is carrying out a dedicated tidal simulation for the area in question. The presented result contains primarily the selection of bathymetric data for the development of computational domain and sensitivity tests due to bottom roughness and the quantity of elevation points along the model’s open boundaries. For the purpose of constructing computational domain, we assess the suitability of global and national bathymetry data. Data from two water level stations in Sunda Kelapa and Cirebon ports are used to verify the model output, for example surface elevation due to tide. The simulation of tide is carried out using two-dimensional horizontal numerical model facilitated by Delft3D software. Sensitivity tests considering two bottom roughness values and three scenarios of boundary conditions are carried out. It is found that the short-term tidal simulation indicates reasonable agreement against tidal data from Sunda Kelapa and Cirebon stations. It seems that bottom roughness does not provide significant control to the resulting magnitude. We have learned that an optimum number of tidal elevation points along the boundary condition must be set. Despite of the demands in improving the tidal phase, our present results indicate promising milestones toward a precise tidal simulation for the domain in question.
The COVID-19 pandemic and the impact on the absence of diver-shark interaction on blacktip reef shark’s agonistic behavior: Morotai case
Authors: Mukharror D A , Fadli R , Ghiffari F 
Published: June 2021

AbstractPrior to COVID-19 pandemic, Morotai waters was well known as one of the favorite destination for shark watching tourism in Indonesia. Similar to other animal sighting tourism in Indonesia, shark diving has been hit hard by the pandemic of COVID-19 and has been banned since April 2020. However, the absence of tourist or diver on the shark dive site brings opportunity to investigate the impact of prolonged absence of diver-shark interaction on the blacktip reef shark’s agonistic behavior. The researches on blacktip reef shark’s agonistic behavior were conducted using diver operated video technique in monthly basis from May to October 2020. These data were compared with the previous diver-shark interaction videos from January 2013 to February 2020. Comparison of both pre-COVID-19 pandemic and during COVID-19 pandemic found that the blacktip reef shark’s agonistic behavior toward diver were not affected significantly by the absence of diver.
Usage of land and coastal waters of the outermost small islands for marine tourism in Indonesia
Authors: Nur S S , Saleng A , Maskun  
Published: June 2021

Abstract
Investment in maritime tourism business opens opportunities for the outermost small islands to be explored in appropriate ways. To control the usage of the land, itmust be regulated by various regulations such as the requirements for business licenses, location and management permits, as well as the provision of right to build for use of land and coastal waters, which is important in marine tourism activities. One of the outermost small islands is Kepa Island in Alor District, East Nusa Tenggara, which is controlled by NuhaKepa Kai Limited Liability Company. The focus of this study is to emphasize the status of the land rights of the Kepa Island community, the legality of the control and usage of land and coastal waters for water tourism business by foreigners, and the role of the local government in granting permission and supervision to the foreigners. The research collected primary data through observation and interviews and secondary data through literature studies. The data then analyzed descriptively. The results of the study are the status of community land rights in the Kepa island involves individual land rights certificates; PT NuhaKepa Kai already has location and management permits but has not yet obtained right to build for land; and the issuance of permits and supervision by the local government are still inadequate and have not been coordinated with the relevant agencies.
The concept of an archipelagic Province in Indonesia
Authors: Djunarsjah E , Putra A P 
Published: June 2021

Abstract
Indonesia is an archipelagic state consisting of 17,504 islands connected by the sea. Two-thirds of Indonesia’s area consists of the sea which has natural resource potential that has not been optimally utilized due to the government’s orientation which still prioritizes development on the land. Based on the mandate of Law Number 23 of 2014 concerning Regional Government and Law Number 1 of 2014 concerning the Zoning Plan for Coastal Areas and Small Islands (RZWP3K), that the boundaries of provincial authority in marine areas are as far as 12 nautical miles from the coastline. Several provinces in Indonesia have archipelagic characteristics, which have a sea area larger than the land. The management in RZWP3K only regulates the area of the sea area based on the provisions as far as 12 miles from the coastline, while the provincial sea area characterized by islands is not yet fully covered by the area of the RZWP3K. Provincial sea regulation cannot be equated with a province without archipelagic characteristics. Therefore, the management of archipelagic province needs to be reviewed using the concept of an archipelago based on the United Nations Convention Law of The Sea III. By implementing the concept of an archipelagic state for Provinces with archipelagic characteristics and following existing laws and regulations, there will be a development of a marine management concept for the archipelagic province. The results of this study are in the form of a provincial marine management concept that can optimize the management of natural resources contained in it.
Coral reef condition at north coastal of Haruku Island Maluku Tengah
Authors: Limmon G V , Manuputty G D 
Published: June 2021

Abstract
This research was conducted in the waters on the north coastal of Haruku Island, in 2018, to analyze the condition of coral reefs in the area. The application of the manta-tow method was used as an initial survey of coral reef ecosystems at three research stations (Pelau, Waimital, and Hulaliu), and then the Point Intercept Transect (PIT) method approach was used to analyze the life form of benthic growth at each location at a depth of 3 and 10 meters. Analysis of the percentage of existing life forms was performed to determine the level of damage to coral reefs. The results showed that the percentage of hard coral cover at a depth of 3 meters for the three locations of Pelau, Waimital, and Hulaliu was 16.33%, 14.67%, and 65.3%, respectively. Meanwhile, the depth of 10 meters is 40.67%, 35%, and 66.67%. The condition of coral reefs at Pelau and Waimital stations at a depth of 3 meters is classified as poor, and at a depth of 10 meters is classified as moderate. Meanwhile, at Hulaliu Station, the condition of coral reefs at both depths was classified as good.
Perspectives on ageing: a qualitative study of the expectations, priorities, needs and values of older people from two Canadian provinces
Authors: Savage Rachel D , Hardacre Kate , Bashi Aya Mahder , Bronskill Susan E , Faulkner Colin , Grieve Jim , Gruneir Andrea , McCarthy Lisa M , Chamberlain Stephanie A , Lam Kenneth , Stall Nathan M , Zhu Lynn , Rochon Paula A 
Published: June 2021

Abstract

Background
Understanding the needs and values of older people is vital to build responsive policies, services and research agendas in this time of demographic transition. Older peoples’ expectations and priorities for ageing, as well as their beliefs regarding challenges facing ageing societies, are multi-faceted and require regular updates as populations’ age.

Objective
To develop an understanding of self-perceptions of ageing and societal ageing among Canadian retirees of the education sector to define a meaningful health research agenda.

Methods
We conducted four qualitative focus groups among 27 members of a Canadian retired educators’ organisation. Data were analysed using an inductive thematic approach.

Results
We identified four overarching themes: (1) vulnerability to health challenges despite a healthier generation, (2) maintaining health and social connection for optimal ageing, (3) strengthening person-centred healthcare for ageing societies and (4) mobilising a critical mass to enact change. Participants’ preconceptions of ageing differed from their personal experiences. They prioritised maintaining health and social connections and felt that current healthcare practices disempowered them to manage and optimise their health. Although the sheer size of their demographic instilled optimism of their potential to garner positive change, participants felt they lacked mechanisms to contribute to developing solutions to address this transition.

Conclusion
Our findings suggest a need for health research that improves perceptions of ageing and supports health system transformations to deliver person-centred care. Opportunities exist to harness their activism to engage older people as partners in shaping solution-oriented research that can support planning for an ageing society.
E-Pedigrees: a large-scale automatic family pedigree prediction application
Authors: Huang Xiayuan , Tatonetti Nicholas , LaRow Katie , Delgoffee Brooke , Mayer John , Page David , Hebbring Scott J 
Published: June 2021

Abstract

Motivation
The use and functionality of Electronic Health Records (EHR) have increased rapidly in the past few decades. EHRs are becoming an important depository of patient health information and can capture family data. Pedigree analysis is a longstanding and powerful approach that can gain insight into the underlying genetic and environmental factors in human health, but traditional approaches to identifying and recruiting families are low-throughput and labor-intensive. Therefore, high-throughput methods to automatically construct family pedigrees are needed.

Results
We developed a stand-alone application: Electronic Pedigrees, or E-Pedigrees, which combines two validated family prediction algorithms into a single software package for high throughput pedigrees construction. The convenient platform considers patients’ basic demographic information and/or emergency contact data to infer high-accuracy parent–child relationship. Importantly, E-Pedigrees allows users to layer in additional pedigree data when available and provides options for applying different logical rules to improve accuracy of inferred family relationships. This software is fast and easy to use, is compatible with different EHR data sources, and its output is a standard PED file appropriate for multiple downstream analyses.

Availability and implementation
The Python 3.3+ version E-Pedigrees application is freely available on: https://github.com/xiayuan-huang/E-pedigrees.