Results 1 to 10 of about 2,123,474 (189)

Joint temporal trends in river thermal and hydrological conditions can threaten the downstream migration of the critically endangered European eel. [PDF]

open access: yesSci Rep, 2021
Climate change is modifying the hydrological and thermal regimes of rivers worldwide, threatening the triggering of organisms’ key life-cycle processes.
Arevalo E   +6 more
europepmc   +2 more sources

Upstream and downstream migration speed of Prochilodus costatus (Characiformes: Prochilodontidae) in upper São Francisco basin, Brazil

open access: yesNeotropical Ichthyology, 2019
Details of migration dynamics of Neotropical fishes are poorly understood. This study aimed to examine upstream (spawning) and downstream (post-spawning) migration speeds, of curimatá-pioa (Prochilodus costatus) in the São Francisco River basin ...
João de Magalhães Lopes   +3 more
doaj   +2 more sources

VAB-8/KIF26, LIN-17/Frizzled, and EFN-4/Ephrin control distinct stages of posterior neuroblast migration downstream of the MAB-5/Hox transcription factor in Caenorhabditis elegans. [PDF]

open access: yesPLoS Genetics
Hox transcription factors are involved in neuronal and neural crest development and differentiation, including migration, but the genetic programs employed by Hox genes to regulate terminal differentiation remain to be defined. In C.
Vedant D Jain, Erik A Lundquist
doaj   +2 more sources

Toddler signaling regulates mesodermal cell migration downstream of Nodal signaling

open access: yeseLife, 2017
Toddler/Apela/Elabela is a conserved secreted peptide that regulates mesendoderm development during zebrafish gastrulation. Two non-exclusive models have been proposed to explain Toddler function.
Megan L Norris   +7 more
doaj   +2 more sources

Investigation of turbulent flows using spillway models aiming to aid downstream migration of fish

open access: yesRivers Research and Applications: an international journal devoted to river research and management, 2023
Dams and other flow control structures constitute obstacles to upstream and downstream aquatic habitats, reducing life‐cycle success and even eliminating diadromous and potamodromous fish species from river basins.
A. Shirinzad   +4 more
semanticscholar   +1 more source

A Physical and Behavioral Barrier for Enhancing Fish Downstream Migration at Hydropower Dams: The Flexible FishProtector

open access: yesWater, 2022
Fish protection at hydropower plants is important for the sustainability of hosting ecosystems and the acceptance of hydropower. On their way downstream, fish are exposed to hydropower plants and various related negative effects, ranging from a delay in ...
Ruben Tutzer   +8 more
semanticscholar   +1 more source

Validation of a Swimming Direction Model for the Downstream Migration of Atlantic Salmon Smolts

open access: yesWater, 2021
Fish swimming performance is strongly influenced by flow hydrodynamics, but little is known about the relation between fine-scale fish movements and hydrodynamics based on in-situ investigations.
M. Szabo-Meszaros   +10 more
semanticscholar   +1 more source

Chum salmon Oncorhynchus keta (Walbaum) on the continental coast of the Okhotsk Sea. Communication 2. The juveniles

open access: yesИзвестия ТИНРО, 2023
Long-term data on downstream migration, qualitative and quantitative characteristics and feeding of juvenile chum salmon are generalized for the continental coast of the Okhotsk Sea.
S. L. Marchenko
doaj   +1 more source

Temporary turbine and reservoir level management to improve downstream migration of juvenile salmon through a hydropower complex

open access: yesKnowledge and Management of Aquatic Ecosystems, 2021
Developing management rules to improve downstream migration of salmon smolts in large hydropower plants is essential to limit mortality and migration delay.
Tétard Stéphane   +4 more
doaj   +1 more source

ESTIMATION OF ABUNDANCE FOR THE MIGRATING JUVENILE PINK SALMON IN THE RIVERS OF SAKHALIN AND ITURUP ISLANDS IN 2019

open access: yesИзвестия ТИНРО, 2020
Number of the pink salmon fry migrating downstream from their spawning grounds in the control rivers in 2019 is assessed as 17546.2 . 103 and 14795.7 . 103 ind. for the Dagi and Bolshoi Khuzi Rivers (northeastern Sakhalin), as 89.1 . 103 and 2636.1 . 103
A. M. Kaev   +3 more
doaj   +1 more source

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