Early life is believed to be a critical stage for determining survivorship in all fish. Many studies have suggested that environmental conditions in the ocean determine the fry-to-adult survival rate of Pacific salmon but few investigations have been conducted on the importance of the brief freshwater period during the seaward migration on overall survivorship. Here, we found that most of the v...

Early life is believed to be a critical stage for determining survivorship in all fish. Many studies have suggested that environmental conditions in the ocean determine the fry-to-adult survival rate of Pacific salmon but few investigations have been conducted on the importance of the brief freshwater period during the seaward migration on overall survivorship. Here, we found that most of the v...

This study aims at modelling the daily concentrations of nonylphenolic compounds such as 4-nonylphenol (4-NP), nonylphenol monoethoxylate (NP1EO) and nonylphenoxy acetic acid (NP1EC) within the Seine River downstream of Paris City for over a year, firstly in the present state (year 2010) and for years 2050 and 2100 in order to assess the consequences of global change on the fate of nonylphenoli...

Early life is believed to be a critical stage for determining survivorship in all fish. Many studies have suggested that environmental conditions in the ocean determine the fry-to-adult survival rate of Pacific salmon but few investigations have been conducted on the importance of the brief freshwater period during the seaward migration on overall survivorship. Here, we found that most of the v...

The removal of two large dams on the Elwha River was completed in 2014 with a goal restoring anadromous salmonid populations. Using observations from ongoing field studies, we compiled timeline migratory fish passage upstream each dam. We also used spatially continuous snorkeling surveys consecutive years before (2007, 2008) and after (2018, 2019) dam during summer baseflow to assess changes di...

Using molecular techniques, a longitudinal study was conducted with the aims at identifying the seasonal difference of Cryptosporidium contamination in surface water as well as analyzing the potential sources based on species information. One hundred forty-four water samples were collected, 72 samples from the Chao Phraya River, Thailand, collected in the summer, rainy and cool seasons and 72 s...

Abstract Hydrographic surveys have revealed that the Yellow River plume propagates in direction opposite to of a Kelvin wave (upstream) under low river discharge condition, but turns downstream as increases. A numerical model reproduced upstream extension condition and transition high confirmed summer wind is not necessary for plume. With discharge, also indicated dependence on tidal range: ext...