Results 31 to 40 of about 853 (176)

Comparative and Functional Analysis of Exosomal microRNAs During Semelparous Reproduction in Ayu Fish (<i>Plecoglossus altivelis</i>). [PDF]

J Extracell Biol
ABSTRACT As a life history strategy, some semelparous organisms, such as the ayu fish (Plecoglossus altivelis), reproduce only once in their lifetime and then die. They invest heavily in their single reproductive event, producing many offspring. However, the regulatory mechanisms that trigger mortality after reproduction are not well understood ...
Pan Y, Meng L, Yoshida K, Qiu L, Ito T, Yonezawa R, Yoshitake K, Saito S, Bailey-Kobayashi N, Yoshida T, Kinoshita S, Asakawa S.   +11 more
europepmc   +2 more sources

Does tidal marsh restoration lead to the recovery of trophic pathways that support estuarine fishes? [PDF]

Ecol Appl
Abstract Evaluation of tidal marsh restoration success is typically based on the recovery of habitat size and target species. However, food‐web structure may provide valuable insight into ecosystem functioning trajectories. Here, we studied restored tidal marshes of different ages (new, young, old; spanning 1–150 years) in comparison with nearby ...
Pagliaro MD, De La Cruz SEW, Woo I, Sousa J, Rich N, Grimaldo L, Colombano D, Ruhí A.   +7 more
europepmc   +2 more sources

Vital dye immersion evaluations with juvenile delta smelt

Aquaculture, Fish and Fisheries, 2023
Immersion‐based vital dyes were tested as a marking method for use in larval smelt mark–recapture studies. We assessed five fluorescent dyes as a mark for juvenile osmerids: 4‐Di‐1‐ASP, BODIPY FL C12, BODIPY 505/515, Nile red, and calcein.
Virginia Afentoulis, Andrew Kalmbach, Tien‐Chieh Hung, Md. Moshiur Rahman, Luke Ellison, Javier Miranda   +5 more
doaj   +1 more source

Salinity Changes the Dynamics of Pyrethroid Toxicity in Terms of Behavioral Effects on Newly Hatched Delta Smelt Larvae

Toxics, 2021
Salinity can interact with organic compounds and modulate their toxicity. Studies have shown that the fraction of pyrethroid insecticides in the aqueous phase increases with increasing salinity, potentially increasing the risk of exposure for aquatic ...
Amelie Segarra, Florian Mauduit, Nermeen R. Amer, Felix Biefel, Michelle L. Hladik, Richard E. Connon, Susanne M. Brander   +6 more
doaj   +1 more source

Insights from a year of field deployments inform the conservation of an endangered estuarine fish. [PDF]

Conserv Physiol
Freshwater fishes are increasingly facing extinction. Some species will require conservation intervention such as habitat restoration and/or population supplementation through mass-release of hatchery fish.
Davis BE, Hammock BG, Kwan N, Pien C, Bell H, Hartman R, Baerwald MR, Schreier B, Gille D, Acuña S, Teh S, Hung TC, Ellison L, Cocherell DE, Fangue NA.   +14 more
europepmc   +3 more sources

Highly and Lowly Domesticated Endangered Fish From a Conservation Hatchery Diverge in Their Thermal Physiology, Transcriptome, and Methylome [PDF]

Evol Appl
ABSTRACT Conservation hatcheries aim to produce fish for supplementation of wild populations, but hatchery environments may drive phenotypic divergence from wild fish. These diverged traits may have reduced fitness in the wild, which could compromise wild population sustainability and evolutionary potential, such as in response to climate change. Delta
Griffiths J, Finger A, Baerwald M, Rahman M, Hung T, Fangue N, Whitehead A.   +6 more
europepmc   +2 more sources

A Qualitative Comparison of Spawning Behavior Between Cultured and Wild Delta Smelt (Hypomesus transpacificus)

San Francisco Estuary and Watershed Science, 2023
For many imperiled species, comparisons between wild and cultured populations are invaluable for informing conservation measures, though opportunities to do so may be rare. In this study, we asked whether spawning between and among wild and cultured Delta Smelt varies in terms of behavior or resulting egg fertilization success.
Tsai, Yi-Jiun Jean, Chase, Samantha N., Carson, Evan W., Zweig, Leanna, Hung, Tien-Chieh   +4 more
openaire   +3 more sources

Spawning Microhabitat Selection in Wild-Caught Delta Smelt Hypomesus transpacificus under Laboratory Conditions [PDF]

Estuaries and Coasts, 2019
AbstractVery little is understood about the spawning habitat of endangered delta smeltHypomesus transpacificus, which hinders ongoing recovery efforts such as wetland habitat restoration and spawning habitat augmentation. To address this, the spawning response of wild-caughtH.
Joan C. Lindberg, Yi-Jiun J. Tsai, Brittany D. Kammerer, Bradd Baskerville-Bridges, Tien-Chieh Hung   +4 more
openaire   +1 more source

Predicting population-level impacts of projected climate heating on a temperate freshwater fish. [PDF]

J Fish Biol
Abstract Climate heating has the potential to drive changes in ecosystems at multiple levels of biological organization. Temperature directly affects the inherent physiology of plants and animals, resulting in changes in rates of photosynthesis and respiration, and trophic interactions.
Mintram KS, Brown AR, Maynard SK, Thorbek P, Tyler CR.   +4 more
europepmc   +2 more sources

Delta Smelt stress responses during fish salvage at the John E. Skinner Delta Fish Protective Facility, California

California Fish and Wildlife Journal, 2023
The John E. Skinner Delta Fish Protective Facility (Skinner Fish Facility) diverts entrained fish from the State Water Project’s pumping facilities in the southern Sacramento-San Joaquin Delta (the Delta) and transports them via tanker trucks away from ...
Virginia Afentoulis, Andrew Rockriver, Samreen Siddiqui, Lauren Damon   +3 more
doaj   +1 more source