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Article
Molecular Localization of Health-Promoting Peptides Derived from Fish Protein Hydrolyzates on Fish Muscle Proteins
The four previously reported health-promoting dipeptides, valine-tyrosine, lysine-tryptophan, methionine-phenylalanine, and arginine-isoleucine, found in the fish muscle hydrolyzates, were mainly located in th...
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Article
Open AccessMetagenomic analysis of the microbial communities and associated network of nitrogen metabolism genes in the Ryukyu limestone aquifer
While microbial biogeochemical activities such as those involving denitrification and sulfate reduction have been considered to play important roles in material cycling in various aquatic ecosystems, our curre...
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Article
Open AccessPilot study of a comprehensive resource estimation method from environmental DNA using universal D-loop amplification primers
Many studies have investigated the ability of environmental DNA (eDNA) to identify the species. However, when individual species are to be identified, accurate estimation of their abundance using traditional e...
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Article
Cloning of glutamine synthetase gene from abdominal muscle of kuruma shrimp Marsupenaeus japonicus and its expression profile
Several shrimps can survive in a wide range of salinity by changing the concentration of free amino acids to regulate osmotic pressure. In particular, glutamine and alanine increase and decrease significantly ...
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Article
Age-Associated Different Transcriptome Profiling in Zebrafish and Rats: an Insight into the Diversity of Vertebrate Aging
Most mammals, including humans, show obvious aging phenotypes, for example, loss of tissue plasticity and sarcopenia. In this regard, fish can be attractive models to study senescence because of their unique a...
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Article
Mg-rich calcite-producing marine bacterium Pseudovibrio sp. isolated from an ascidian in coral reefs at Okinawa, Japan
Since the beginning of the last century, bacteria, including cyanobacteria, have been known to be involved in the extracellular formation and precipitation of CaCO3. It is also known that some marine bacteria for...
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Article
Visualisation of Phosphate in Subcalicoblastic Extracellular Calcifying Medium and on a Skeleton of Coral by Using a Novel Probe, Fluorescein-4-Isothiocyanate-Labelled Alendronic Acid
The overload of nutrients of anthropogenic origin, including phosphate, onto coastal waters has been reported to have detrimental effects on corals. However, to the best of our knowledge, the phosphate concent...
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Article
Regulation of the Expression of the Myosin Heavy Chain (MYH) Gene myh14 in Zebrafish Development
The human sarcomeric myosin heavy chain gene MYH14 contains an intronic microRNA, miR-499. Our previous studies demonstrated divergent genomic organization and expression patterns of myh14/miR-499 among teleosts;...
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Article
Diversity and functions of bacterial communities in water and sediment from the watershed of the Tama River flowing a highly urbanized area
Bacterial communities are important factors governing changes in river ecology. We evaluated the diversity of bacterial communities in sediment and size-fractionated water samples collected from the Tama River...
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Article
Open AccessSeasonal and annual changes in the microbial communities of Ofunato Bay, Japan, based on metagenomics
Five years of datasets from 2015 to 2019 of whole genome shotgun sequencing for cells trapped on 0.2-µm filters of seawater collected monthly from Ofunato Bay, an enclosed bay in Japan, were analysed, which in...
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Article
Open AccessDevelopment of a time-series shotgun metagenomics database for monitoring microbial communities at the Pacific coast of Japan
Although numerous metagenome, amplicon sequencing-based studies have been conducted to date to characterize marine microbial communities, relatively few have employed full metagenome shotgun sequencing to obta...
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Article
Changes in metabolite concentrations in the abdominal muscle of the kuruma shrimp Marsupenaeus japonicus in response to different salinities
Invertebrates change the metabolite concentrations in their bodies to adapt to environmental salinity. The kuruma shrimp Marsupenaeus japonicus is one such invertebrate. It lives in coastal areas and is also know...
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Article
Open AccessEstimation of tuna population by the improved analytical pipeline of unique molecular identifier-assisted HaCeD-Seq (haplotype count from eDNA)
Many studies have investigated the ability to identify species from environmental DNA (eDNA). However, even when individual species are identified, the accurate estimation of their abundances by traditional eD...
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Article
Tissue distribution of tetrodotoxin and its analogs in Lagocephalus pufferfish collected in Vietnam
Pufferfish belonging to Lagocephalus are composed of several species, some of which have been recognized to be non-toxic. Although fish belonging to this genus inhabit a wide variety of seawaters from temperate t...
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Article
Determination of thermal tolerance in rainbow trout Oncorhynchus mykiss based on effective time, and its reproducibility for a large number of fish
Thermally selected male rainbow trout selectively bred at high temperatures were crossed with females of the Nikko strain with normal thermal tolerance. The F2 pedigrees, comprising 1641 individuals, were divi...
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Article
In memoriam Prof. Taneko Suzuki (1926–2020)
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Article
Suitability of Japanese codling as a raw material for surimi-based products revealed by primary sequence analysis of myosin heavy chain and thermal gel properties
Complementary DNA encoding a part of myosin heavy chain was cloned from fast skeletal muscle of Japanese codling Physiculus japonicus. Japanese codling, a frequent catch off the Pacific coast of northeastern Japa...
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Article
Trivalent Iron Is Responsible for the Yellow Color Development in the Nacre of Akoya Pearl Oyster Shells
The gold and cream colors of cultured Akoya pearls, as well as natural yellow nacre of pearl oyster shells, are thought to arise from intrinsic yellow pigments. While the isolation of the yellow pigments has b...
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Article
HaCeD-Seq: a Novel Method for Reliable and Easy Estimation About the Fish Population Using Haplotype Count from eDNA
It is common to count the numbers of specified fish in the field after speciation of captured fish according to their morphology and to subject these counts to appropriate statistical analyses. In recent years...
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Article
Evaluation of the thermal tolerances of different strains of rainbow trout Oncorhynchus mykiss by measuring the effective time required for loss of equilibrium at an approximate upper lethal temperature
The thermal tolerance phenotypes of different strains of rainbow trout Oncorhynchus mykiss was investigated in this study. The time at which a fish, acclimated to 17 °C, was no longer able to maintain its equilib...
