Ali Mashar
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View article: Risk assessment of invasive species freshwater crayfish (Cherax quadricarinatus) in Lake Laut Tawar, Aceh
Risk assessment of invasive species freshwater crayfish (Cherax quadricarinatus) in Lake Laut Tawar, Aceh Open
This study aims to assess the distribution of Cherax quadricarinatus based on depth and evaluate its invasiveness using a risk assessment in Lake Laut Tawar, Central Aceh. The study was conducted at five stations representing various lake …
View article: IDENTIFICATION AND PREVALENCE OF ECTOPARASITES IN BLUE SWIMMING CRAB (Portunus pelagicus Linnaeus, 1758) ON THE NORTH COAST OF JAVA
IDENTIFICATION AND PREVALENCE OF ECTOPARASITES IN BLUE SWIMMING CRAB (Portunus pelagicus Linnaeus, 1758) ON THE NORTH COAST OF JAVA Open
Besides overfishing, other factors that influence the decline in blue swimming crab (Portunus pelagicus) production are diseases caused by parasites. Poor environmental conditions could trigger parasite infestation on their host. This stud…
View article: Abundance, diversity, and trophic state status of estuary based on Bacillariophyta using eDNA method in Jakarta Bay, Indonesia
Abundance, diversity, and trophic state status of estuary based on Bacillariophyta using eDNA method in Jakarta Bay, Indonesia Open
Bacillariophyta, also known as diatoms, are a group of microscopic algae found in marine aquatic environments. The presence of these diatoms is a bioindicator to determine the trophic state status of waters, including Jakarta Bay, which is…
View article: Reproductive characteristics of Keudawah (Rasbora arundinata (Lumbantobing, 2014)): Insights into a native species of Krueng Lanca River, Nagan Raya District, Aceh Province, Indonesia
Reproductive characteristics of Keudawah (Rasbora arundinata (Lumbantobing, 2014)): Insights into a native species of Krueng Lanca River, Nagan Raya District, Aceh Province, Indonesia Open
Abdan M, Sulistiono, Kamal MM, Mashar A, Butet NA. 2025. Reproductive characteristics of Keudawah (Rasbora arundinata, Lumbantobing 2014): Insights into a native species of Krueng Lanca River, Nagan Raya District, Aceh Province, Indonesia.…
View article: The pollution status of Banten Bay waters based on physical and chemical parameters using CCME index
The pollution status of Banten Bay waters based on physical and chemical parameters using CCME index Open
Banten Bay are located in northern part of Cilegon City, Banten Province. The water quality of Banten Bay is influenced by both environmental and anthropogenic factors, which if not properly managed can lead to pollution. This study aimed …
View article: Color diversity of land hermit crabs in Karang Hawu Beach, Pelabuhan Ratu Bay, West Java
Color diversity of land hermit crabs in Karang Hawu Beach, Pelabuhan Ratu Bay, West Java Open
Land hermit crabs ( Coenobita spp.) are infraorder anomuran crustaceans that have an important role in coastal ecosystems, especially as decomposers and environmental bioindicators. One of the interesting phenotypic characteristics of land…
View article: New distribution record of <i>Myomenippe hardwickii</i> (Gray, 1831) (Crustacea: Decapoda: Brachyura) in Java, Indonesia
New distribution record of <i>Myomenippe hardwickii</i> (Gray, 1831) (Crustacea: Decapoda: Brachyura) in Java, Indonesia Open
Indonesia is an archipelagic country with a very long coastline. The coastal area is home to many intertidal biota that have the ability to adapt to very rapid habitat changes. Cases of cryptic species are very common in crustaceans compar…
View article: Amphipod size variation and substrate color preferences in coastal habitats: An experimental study in Ujung Genteng, West Java
Amphipod size variation and substrate color preferences in coastal habitats: An experimental study in Ujung Genteng, West Java Open
Amphipods are key detritivores in coastal ecosystems, and their behaviour and habitat selection can offer insights into their survival strategies. This study aims to investigate the substrate colour preferences and size variation in Trasko…
View article: DISTRIBUTION OF Charybdis (Archias) padangensis Leene & Buitendijk, 1952 (CRUSTACEA: DECAPODA: BRACHYURA) IN THE WATERS OF SUMATRA AND JAVA
DISTRIBUTION OF Charybdis (Archias) padangensis Leene & Buitendijk, 1952 (CRUSTACEA: DECAPODA: BRACHYURA) IN THE WATERS OF SUMATRA AND JAVA Open
Until this decade, Charybdis (Archias) padangensis was only from Padang, West Sumatra. It was reported first and the only one in 1952. We obtained several crab samples based on the by-catch from daily fishermen in several locations. Based …
View article: Length-weight relationship and condition factor of sagor catfish (Hexanematichthys sagor Hamilton, 1822) in the coastal waters Muara Angke and surrounding area, Jakarta Bay
Length-weight relationship and condition factor of sagor catfish (Hexanematichthys sagor Hamilton, 1822) in the coastal waters Muara Angke and surrounding area, Jakarta Bay Open
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 mudd…
View article: Haplotype diversity of coastal horseshoe crab (Tachypleus gigas, Muller 1785) based on 16S rRNA gene markers as a basis for conservation
Haplotype diversity of coastal horseshoe crab (Tachypleus gigas, Muller 1785) based on 16S rRNA gene markers as a basis for conservation Open
Tachypleus gigas is one of horseshoe crab species found in Indonesia, but does not have sufficient molecular biology information available. This study aims to predict the populations health of T. gigas from the waters of Langkat, Semarang,…
View article: Genetic diversity of Spotted scat (Scatophagus argus) based on 16s rRNA gene markers in WPP 573 Western part as management basis
Genetic diversity of Spotted scat (Scatophagus argus) based on 16s rRNA gene markers in WPP 573 Western part as management basis Open
Spotted scat ( Scatophagus argus ) is one of the demersal fish that has important economic value, this fish is used as a consumption fish and ornamental fish. It is also an active migratory fish that allows genetic transfer from different …
View article: DNA Barcoding and Phylogenetic Analysis of Commercially Important Groupers (Serranidae) in Raja Ampat using gene marker Cytochrome c Oxidase I (COI)
DNA Barcoding and Phylogenetic Analysis of Commercially Important Groupers (Serranidae) in Raja Ampat using gene marker Cytochrome c Oxidase I (COI) Open
Groupers are one of the most important and commercial fishes; many of the species are classified as Life Reef Fish Trade (LRFT). The number of grouper species in these locations may be more diverse than at other sites. Identifying the spec…
View article: Distribution of moon crab Matuta victor (Fabricius, 1781) from the western and eastern of Java coastline and the characteristic of COI mitochondria among the locations
Distribution of moon crab Matuta victor (Fabricius, 1781) from the western and eastern of Java coastline and the characteristic of COI mitochondria among the locations Open
The high activity in coastal regions contributes to the abundance of coastal biota such as Matuta victor . This crab is a supporting organism in aquatic ecosystems, playing an important role in food webs. It provides ecosystem services tha…
View article: Lobster fisheries management strategy by the social-ecological system approach: The case of Gunungkidul Coastal Waters, Special Region of Yogyakarta Province
Lobster fisheries management strategy by the social-ecological system approach: The case of Gunungkidul Coastal Waters, Special Region of Yogyakarta Province Open
Small-scale fisheries, like spiny lobsters, are examples of open-access, common-pool resources that include intricate systems requiring effective management strategies. This research used Driver-Pressure-State-Impact-Response (DPSIR) model…
View article: Genetic variation of sand crab <i>Albunea symmysta</i> (Crustacea: Albuneidae) from Enggano Island and adjacent region
Genetic variation of sand crab <i>Albunea symmysta</i> (Crustacea: Albuneidae) from Enggano Island and adjacent region Open
The sand crab Albunea symmysta is widespread in the Pacific, including Indonesia. Its lifestyle of burying its body in the sand in the intertidal area near to the river estuaries means that this albuneid crab is rarely found and studied. T…
View article: Length-Weight Relationship and Condition Factors of Keudawah (<i>Rasbora</i> sp., Family: Danionidae) in the Krueng Lanca Flows of Nagan Raya Regency, Aceh, Indonesia
Length-Weight Relationship and Condition Factors of Keudawah (<i>Rasbora</i> sp., Family: Danionidae) in the Krueng Lanca Flows of Nagan Raya Regency, Aceh, Indonesia Open
Keudawah (Rasbora sp.) is a native species found in freshwater, especially Krueng Lanca of Aceh Province, Indonesia. Length-weight relationships (L-WR) and condition factor studies are significant in fisheries, as they offer invaluable ins…
View article: Genetic differentiation of <i>Hippa adactyla</i> based on CO1 gene sequence in Sundaland
Genetic differentiation of <i>Hippa adactyla</i> based on CO1 gene sequence in Sundaland Open
The Hippidae is a family of sand crabs that inhabit intertidal ecosystems, specifically in sandy areas scattered throughout the coast. Differences in habitat conditions cause variations in Hippidae members. Hippa adactyla is a member of th…
View article: Reproductive biology of endemic sailfin silversides fish Telmatherina antoniae Kottelat, 1991 in Matano Lake, South Sulawesi
Reproductive biology of endemic sailfin silversides fish Telmatherina antoniae Kottelat, 1991 in Matano Lake, South Sulawesi Open
Sailfin silversides ( Telmatherina antoniae ) is an endemic species from Matano Lake, South Sulawesi. This study aims to learn about sailfin silversides’ reproductive aspects including sex ratio, length at first maturity, gonad maturity st…
View article: Abnormal record of coastal horseshoe crab (Tachypleus gigas Müller, 1785) in Subang, West Java, Indonesia
Abnormal record of coastal horseshoe crab (Tachypleus gigas Müller, 1785) in Subang, West Java, Indonesia Open
The xiphosurids are a typical chelicerae group with massive morphological, anatomical, biochemical, and ecological documentation. Despite this study, information about extant horseshoe crab abnormalities is underexplored, especially in the…
View article: Design of Oil-Free Compressor in Compressed Air System PT Sanbe Farma Unit 1
Design of Oil-Free Compressor in Compressed Air System PT Sanbe Farma Unit 1 Open
This research is the development of a screw type compressor technology found in the utility system of PT. Sanbe Farma. This design aims to design a screw oil-free compressor focusing on solving problems that generally occur in a compressor…
View article: DNA BARCODING UNTUK VALIDASI SPESIES PAUS SPERMA (Physeter macrocephalus LINNAEUS, 1758) DARI PERAIRAN LAUT SAWU, NUSA TENGGARA TIMUR, INDONESIA
DNA BARCODING UNTUK VALIDASI SPESIES PAUS SPERMA (Physeter macrocephalus LINNAEUS, 1758) DARI PERAIRAN LAUT SAWU, NUSA TENGGARA TIMUR, INDONESIA Open
The sperm whale (Physeter macrocephalus) is a protected marine biota in Indonesia. Molecular identification of sperm whales from the Sawu Sea (East Nusa Tenggara, Indonesia) was carried out using the 16S rRNA gene. This study aims to valid…
View article: Selection of Proper Well Candidates for Well Intervention Job Using the AHP (Analytic Hierarchy Process) Method
Selection of Proper Well Candidates for Well Intervention Job Using the AHP (Analytic Hierarchy Process) Method Open
Oil and gas wells are essential assets for oil and gas companies.However, this oil and gas production will naturally decline, especially if it has passed the peak stages of production.In addition to natural factors from the condition of oi…
View article: Integration of tuna fishery data collection in the Southern Waters of Java (FMA-573)
Integration of tuna fishery data collection in the Southern Waters of Java (FMA-573) Open
Fishing operational data is the key to making fisheries management policies. Without this data, policymakers could only speculate on current field conditions; hence their decisions are not solutions to issues and problems in fisheries mana…
View article: FOOD PREFERENCES OF EARLY JUVENILE SCALLOPED SPINY LOBSTER IN EKAS BAY, LOMBOK, INDONESIA
FOOD PREFERENCES OF EARLY JUVENILE SCALLOPED SPINY LOBSTER IN EKAS BAY, LOMBOK, INDONESIA Open
Ekas Bay is the largest bay on the island of Lombok which is the location for catching and cultivating spiny lobsters. This research was conducted from May to July 2021 on the Scalloped spiny lobster (Panulirus homarus). This study aims to…
View article: Marine Suitability Assessment for Mariculture: Combining GIS and AHP Technique in Dampier Strait Conservation Area, West Papua Province, Indonesia
Marine Suitability Assessment for Mariculture: Combining GIS and AHP Technique in Dampier Strait Conservation Area, West Papua Province, Indonesia Open
Highlight Research Mariculture is one of the activities that can pressure the aquatic environment. Mariculture activities are carried out by considering the sustainability aspects of environmentally friendly implementation. The suitability…
View article: Increased Knowledge of Lighting Installation, Hazards, And Electricity Use in Students of Kartika XIX-2 Junior High School Bandung
Increased Knowledge of Lighting Installation, Hazards, And Electricity Use in Students of Kartika XIX-2 Junior High School Bandung Open
This community service proposed an introduction to electrical installation systems and electrical security systems for households in accordance with PUIL 2011 standards and international standards that could be applicable to students of Ka…
View article: Biological reproduction variables of scalloped spiny lobster (<i>Panulirus homarus</i> Linnaeus, 1758) in the west coast of Lampung province
Biological reproduction variables of scalloped spiny lobster (<i>Panulirus homarus</i> Linnaeus, 1758) in the west coast of Lampung province Open
The scalloped spiny lobster ( Panulirus homarus ) is one of the dominant lobster species caught by fishermen in the west coast of Lampung Province. The spiny lobster fishing seems to be high pressure due to the catch result having a reason…
View article: Gaining Aquaculture Blue Growth with Low Carbon Emission Shrimp Farming Technology
Gaining Aquaculture Blue Growth with Low Carbon Emission Shrimp Farming Technology Open
Carbon emissions and their relation to shrimp farming activities getting more attention by researchers and environmentalists. Emissions of carbon and other greenhouse gases are concluded as drivers of climate change due to global warming. …