Search
Search Results
-
Will Planktothrix spp. become dominant again in Lake Kasumigaura? Analysis of phytoplankton community dynamics
Because Lake Kasumigaura is a water supply for nearby residents, blooms of Planktothrix spp. have been a concern, and the causes of the blooms have...
-
Synchronous decline of native bitterling population detected from 9 years of survey in rivers and agricultural ditches around Lake Kasumigaura, Japan
To assess the population dynamics, abundance of bitterling species and two non-bitterling cyprinid species were investigated in Lake Kasumigaura,...
-
Limiting nutrient and its use efficiency of phytoplankton in a shallow eutrophic lake, Lake Kasumigaura
In the management of lakes for a healthy environment, it is crucial to assess the limiting nutrient(s) and understand its use efficiency of the...
-
Vertical mixing and oxygen flux caused by daily sea breezes in a shallow stratified lake
Vertical transport caused by mixing is essential for understanding physical processes in lakes. However, mixing processes in shallow lakes are not...
-
Stratification and mixing processes associated with hypoxia in a shallow lake (Lake Kasumigaura, Japan)
Physical processes associated with hypoxia events in a shallow lake, Lake Kasumigaura, Japan, are investigated with long-term mooring observations at...
-
Spawning habitat characteristics of pond smelt Hypomesus nipponensis in small inlet rivers to Lake Yogo, central Japan
For stock enhancement of the pond smelt Hypomesus nipponensis in Japan, eyed eggs have been transplanted into numerous lakes, ponds, and reservoirs...
-
Seasonal variability in the isotopic niche of the invasive channel catfish Ictalurus punctatus in Japan
The global threat posed by non-native species to biodiversity and freshwater ecosystems necessitates understanding their ecological impacts. The...
-
Exploring the use of fish as indicators of eicosapentaenoic and docosahexaenoic supply in lake ecosystems
An adequate supply of food sources with high levels (i.e., weight proportion of total fatty acids) and contents (i.e., absolute amount per mass) of...
-
Temperature, nutrients and planktivorous fish predation interact to drive crustacean zooplankton in a large plateau lake, southwest China
Introduction of planktivorous fish or eutrophication can alter lake food webs, especially the zooplankton communities are susceptible to changes in...
-
Horizontal variability and regulation of bacterial production in Lake Biwa, Japan
To clarify horizontal variability and regulation of bacterial production (BP), we investigated BP and environmental variables along three east–west...
-
The first record of spawning-season homing of gin-buna crucian carp Carassius sp. to a lakeside biotope connected to Lake Biwa confirmed via acoustic telemetry and egg surveys
Gin-buna crucian carp Carassius sp. is a widely distributed cyprinid fish inhabiting lakes and rivers throughout Japan. The species is categorized on...
-
The determining factor of radiocesium contamination levels in smallmouth bass Micropterus dolomieu in Lake Hayama after the Fukushima fallout
We examined the radiocesium concentration, age, standard length, and stomach contents of smallmouth bass Micropterus dolomieu collected from Lake...
-
Absorption properties of dissolved organic matter in East Asian temperate lakes
There are few comparative studies of chromophoric dissolved organic matter (CDOM) in humid temperate lakes. In this study, we examined the...
-
Analysis of the complete mitogenome of Daphnia galeata from the Han River, South Korea: structure comparison and control region evolution
Daphnia galeata is an important plankton in aquatic ecosystems. As a widely distributed species, D. galeata has been found throughout the Holarctic...
-
Evaluation of Contamination Status and Health Risk Assessment of Essential and Toxic Metals in Cyprinus carpio from Mangla Lake, Pakistan
Although fish as a diet has many health benefits, metal accumulation in fish has been an increasing public health concerns across the world. The Cyprin...
-
-
Nocturnal activity and feeding of juvenile channel catfish, Ictalurus punctatus, around offshore breakwaters in Lake Kasumigaura, Japan
Diel changes in occurrence and feeding habits of juvenile channel catfish ( Ictalurus punctatus ) were examined in offshore breakwater areas in Lake...
-
Biodiversity of Lake Biwa
The biota of Lake Biwa has been studied since the beginning of the eighteenth century. In mid-Edo era, the Wakan Sansai Zue (illustrated...
-
Ecological Changes in the Lake Biwa Environment
The ecosystem of Lake Biwa has been greatly affected by various kinds of human activities. The water level has been decreasing in the long run since...
-
Diet of Ictalurus punctatus (Actinopterygii, Ictaluridae) in a mountain reservoir surrounded by forest land in Japan
Channel catfish, Ictalurus punctatus (Rafinesque, 1818), is non-native to Japan and has been invading Japanese rivers and lakes after its...
