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61,005 resultsShowing papers similar to Population differentiation of the endangered salt-marsh snail Ellobium chinense in Japan (Gastropoda: Ellobiidae)
ClearPopulation genetics and pedigree geography of Trionychia japonica in the four mountains of Henan Province and the Taihang Mountains
Researchers investigated the population genetics and phylogeography of the Japanese planarian in mountain systems of Henan Province and the Taihang Mountains, using DNA analysis to inform conservation strategies for this freshwater species threatened by habitat loss and climate change.
Analysis of Geographical Genetic Differences of Arkshell Populations in Korea
Researchers used genetic analysis to compare two populations of arkshells from different coastal locations in South Korea. The genetic differences found between the two populations have implications for fisheries management and aquaculture stock selection.
Field study of the microplastic pollution in sea snails (Ellobium chinense) from mangrove forest and their relationships with microplastics in water/sediment located on the north of Beibu Gulf
Scientists measured microplastics in tissues of sea snails (Ellobium chinense) collected from mangrove forests in the Beibu Gulf, finding contamination in soft tissues but not shells, with fiber type and color patterns matching those in local water and sediment samples.
Morphological and molecular characteristics of Donax incarnatus (Bivalvia: Donacidae) from Badur Beach, Madura Island, Indonesia based on the COX1 gene
This study described the morphological and genetic characteristics of the clam Donax incarnatus from Madura Island, Indonesia using the COX1 gene. The research contributes to biodiversity documentation of marine bivalves that may be affected by microplastic pollution in Indonesian waters.
The native mussel Mytilus chilensis genome reveals adaptative molecular signatures facing the marine environment
Researchers sequenced and analyzed the genome of the native Chilean blue mussel Mytilus chilensis, identifying adaptive molecular signatures that reflect the species' responses to diverse marine environmental conditions, with implications for understanding resilience in an aquaculture species reliant on wild seed collection.
Population genetics of Todarodes pacificus (Cephalopoda: Ommastrephidae) in the northwest Pacific Ocean via GBS sequencing
Researchers analyzed population genetics of the common squid Todarodes pacificus across three locations in the northwest Pacific Ocean using genotyping-by-sequencing (GBS) to obtain 43,529 SNPs. Results revealed low genetic diversity and weak genetic differentiation among populations, attributed to high gene flow and demographic history over the past two million years, with implications for conservation management of this commercially important species.
Checklist of Mangrove Snails (Mollusca: Gastropoda) in the Coastal of Sungai Nyirih Village West Kalimantan
Researchers conducted a checklist survey of mangrove gastropod species in Sungai Nyirih Village, West Kalimantan, documenting the diversity of snail biota that serve as food sources for local communities and as bioindicators of coastal water quality.
Bivalves Diversity and Abundance in the Coastal Waters: An Environmental Pollution Monitoring Measure
Researchers assessed bivalve species diversity, abundance, and water physicochemical factors at three sites in Banyuurip Village, Indonesia, using the assemblage as a bioindicator of water quality impacts from industrial and household waste pollution.
Genetic Structure and Historical Dynamics of the Economic Species Phascolosoma esculenta in Southeastern China
Scientists studied the genetics of Phascolosoma esculenta, a type of marine worm that's considered a seafood delicacy in China. They found that these worm populations are becoming inbred and their numbers have been declining for about 300 years, which could hurt the long-term sustainability of this food source. This research helps guide efforts to protect and farm these worms responsibly so they remain available as a healthy seafood option.
Molecular Diet Analysis of Asian Clam for Estuarine Biodiversity Monitoring: A Case Study of Nakdong River Estuary
Researchers used environmental DNA extracted from the gut contents of Asian clams to identify biodiversity in the Nakdong River Estuary. Filter-feeding organisms like clams accumulate microplastics alongside food particles, making them useful both as biodiversity monitors and as indicators of microplastic contamination levels.
Population Genomics of Commercial Fish Sebastes schlegelii of the Bohai and Yellow Seas (China) Using a Large SNP Panel from GBS
This paper is not about microplastics; it is a population genetics study of the black rockfish (Sebastes schlegelii) in Chinese coastal waters, using genomic sequencing to examine genetic diversity and connectivity between fish populations.
Mangrove mud clam as an effective sentinel species for monitoring changes in coastal microplastic pollution
Researchers collected mangrove mud clams from 18 stations along China's Leizhou Peninsula to evaluate their effectiveness as sentinel organisms for monitoring coastal microplastic pollution. They found that microplastic contamination in the clams correlated with local pollution levels, making them useful biological indicators. The study suggests that this widely distributed species could serve as a standardized tool for tracking changes in coastal microplastic contamination over time.
Rediscovering Kemp’s Ridley Sea Turtle (Lepidochelys kempii): Molecular Analysis and Threats
Researchers used molecular analysis to characterize the genetic diversity and population structure of Kemp's ridley sea turtles, one of the world's most endangered sea turtle species. Sea turtles face multiple threats, including ingestion of marine plastic debris and microplastics, which can cause starvation and internal injury.
Molecular Diet Analysis of Asian Clams for Supplementary Biodiversity Monitoring: A Case Study of Nakdong River Estuary
Researchers extracted environmental DNA from the gut contents of Asian clams at three sites in South Korea's Nakdong River Estuary to identify the biodiversity those filter-feeders were exposed to. The technique detected 23 taxa including fish, copepods, and algae, and identified species missed by conventional field surveys.
Mollusks Diversity in the Protected Coastline of Berbak-sembilang National Park Indonesia
Researchers assessed mollusk diversity and its correlation with water quality parameters in the protected coastline of Berbak-Sembilang National Park, Indonesia, using sampling, diversity analysis, and principal component correlation methods. The study aimed to document potential declines in mollusk diversity driven by water quality fluctuations that could threaten benthic ecosystem food webs.
Restriction Site-Associated DNA Sequencing Reveals Local Adaptation Despite High Levels of Gene Flow in Sardinella lemuru (Bleeker, 1853) Along the Northern Coast of Mindanao, Philippines
This genetics study assessed population structure and local adaptation in Bali sardinella fish along the northern coast of Mindanao in the Philippines. The findings are relevant to fisheries management and marine biology rather than plastic pollution.
Species diversity of seagrass-associated bivalves as an ecological parameter to support seagrass conservation along with the Coastal Waters of South Lombok, Indonesia
Researchers studied the diversity of bivalve species associated with seagrass beds along the coast of South Lombok, Indonesia, finding that healthier seagrass beds supported greater bivalve diversity. Seagrass ecosystems are important for filtering microplastics from coastal waters, though this paper focuses on biodiversity rather than pollution. The findings support the conservation of coastal seagrass habitats.
Contribution of environmental factors to genetic variation in the Pacific white-sided dolphin
This study examined major environmental factors including water pollution driving genetic variation in Pacific white-sided dolphin (Lagenorhynchus obliquidens) populations in Japanese waters. The research aimed to identify how anthropogenic pollution and other environmental drivers create or maintain genetic differentiation among populations in different areas.
Microplastics in commercial bivalves from China
Researchers analyzed microplastics in commercially sold bivalves from China, finding contamination across multiple species and geographic origins, with implications for human dietary microplastic exposure through shellfish consumption.
Microplastic in clams: An extensive spatial assessment in south Brazil
Researchers assessed microplastic contamination in clams collected from extensive coastal regions of southern Brazil. They found microplastics in the soft tissues of clams across all sampling sites, with contamination levels influenced by proximity to urban areas, rivers, and local water flow patterns. The study highlights that even organisms in less urbanized coastal areas are accumulating microplastics, raising concerns about widespread contamination in shellfish habitats.
Invertebrate population genetics across Earth's largest habitat: The deep‐sea floor
This review synthesised 77 population genetic studies covering 115 deep-sea invertebrate species, finding genetic diversity comparable to shallow-water taxa and revealing that populations at similar depths are often better connected than those separated by depth gradients.
Molecular Identification and Phylogenetic Analysis of Hydra vulgaris from Greater Zab River, Iraq
Researchers performed molecular identification of Hydra vulgaris collected from the Greater Zab River in Iraq using the mitochondrial COI gene, generating the first GenBank-registered sequence (OP521891.1) for this species from the country. Phylogenetic analysis revealed minimal genetic divergence from globally reported sequences, confirming species identity and providing baseline genomic data for the region.
Escherichia coli Phylogenetic and Antimicrobial Pattern as an Indicator of Anthropogenic Impact on Threatened Freshwater Mussels
Researchers analyzed E. coli isolated from freshwater mussels (Margaritifera margaritifera and Potomida littoralis) in two Portuguese rivers with different levels of anthropogenic contamination, finding greater antibiotic resistance and more diverse phylogenetic profiles at the more contaminated site. The results suggest E. coli from freshwater mussels can serve as an indicator of antimicrobial resistance pressure from human activities.
Behavioural and physiological responses to salinization and air exposure during the ontogeny of a freshwater South American snail
Researchers examined salinity tolerance and behavioral responses of the vulnerable freshwater snail Chilina dombeiana during different life stages, finding that early developmental stages were most sensitive to salinization stress.