Results 111 to 120 of about 293 (144)

Ultrastructure of Micropylar Cells in the Ovarian Follicles of the Pond Smelt, Hypomesus transpacificus nipponensis

Ultrastructure of Micropylar Cells in the Ovarian Follicles of the Pond Smelt, Hypomesus transpacificus nipponensis
openaire  

Some of the next articles are maybe not open access.

Related searches:

Physiological effects of salinity on Delta Smelt, Hypomesus transpacificus

Fish Physiology and Biochemistry, 2015
Abiotic factors like salinity are relevant to survival of pelagic fishes of the San Francisco Bay Estuary. We tested the effects of 4 parts per thousand (ppt) salinity increases on Delta Smelt (DS) in a laboratory experiment simulating salinity increases that might occur around the low-salinity zone (LSZ) (
Brittany D, Kammerer, Tien-Chieh, Hung, Randall D, Baxter, Swee J, Teh   +3 more
openaire   +2 more sources

Sublethal responses to ammonia exposure in the endangered delta smelt; Hypomesus transpacificus (Fam. Osmeridae)

Aquatic Toxicology, 2011
The delta smelt (Hypomesus transpacificus) is an endangered pelagic fish species endemic to the Sacramento-San Joaquin Estuary in Northern California, which acts as an indicator of ecosystem health in its habitat range. Interrogative tools are required to successfully monitor effects of contaminants upon the delta smelt, and to research potential ...
Richard E Connon, Linda A Deanovic
exaly   +3 more sources

TaqMan assays for the genetic identification of delta smelt (Hypomesus transpacificus) and wakasagi smelt (Hypomesus nipponensis)

Molecular Ecology Resources, 2011
AbstractWe have developed species‐specific TaqMan assays for two California fish species, the threatened delta smelt (Hypomesus transpacificus) and the introduced wakasagi smelt (Hypomesus nipponensis). The assays are capable of correctly identifying each species with 100% accuracy, with no cross‐species amplification.
Melinda R, Baerwald, Gregg, Schumer, Brian M, Schreier, Bernie, May   +3 more
openaire   +2 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.
Tien-Chieh Hung, Hung Tien-Chieh
exaly   +2 more sources

Assessing oocyte development and maturation in the threatened Delta Smelt, Hypomesus transpacificus

Environmental Biology of Fishes, 2016
Delta Smelt is a pelagic annual fish species endemic to the San Francisco Estuary, which is protected under U.S. Federal and California State Endangered Acts. In this study we established criteria for scoring Delta Smelt maturity based on the histological features in ovary, as well as measurements of the female sex hormone 17β-estradiol (E2) from liver
Tomofumi Kurobe, Micheal O. Park, Alireza Javidmehr, Foo-Ching Teh, Shawn C. Acuña, Cynthia J. Corbin, Alan J. Conley, William A. Bennett, Swee J. Teh   +8 more
openaire   +1 more source

Comparative environmental tolerances of threatened delta smelt ( Hypomesus transpacificus ) and introduced wakasagi ( H. nipponensis ) in an altered California estuary

Oecologia, 2000
In California's Sacramento-San Joaquin estuary, environmental protection and habitat restoration efforts directed at a threatened native osmerid, the delta smelt (Hypomesus transpacificus), are complicated by the presence of a morphologically similar non-native congener, the wakasagi (H. nipponensis), transported to the estuary from upstream reservoirs.
C Swanson, Joseph J Cech
exaly   +3 more sources

Urban and agricultural pesticide inputs to a critical habitat for the threatened delta smelt (Hypomesus transpacificus)

Environmental Toxicology and Chemistry, 2014
Abstract   The Cache Slough complex is an area of tidal sloughs in the Sacramento–San Joaquin River Delta of California (USA), and is surrounding by irrigated agricultural lands. Among the species of concern in the area is the delta smelt (Hypomesus transpacificus), a federally listed threatened ...
Donald P, Weston, Aundrea M, Asbell, Sarah A, Lesmeister, Swee J, Teh, Michael J, Lydy   +4 more
openaire   +2 more sources

Sub-lethal effects of herbicides penoxsulam, imazamox, fluridone and glyphosate on Delta Smelt (Hypomesus transpacificus)

Aquatic Toxicology, 2018
Concerns regarding non-target toxicity of new herbicides used to control invasive aquatic weeds in the San Francisco Estuary led us to compare sub-lethal toxicity of four herbicides (penoxsulam, imazamox, fluridone, and glyphosate) on an endangered fish species Delta Smelt (Hypomesus transpacificus). We measured 17β-estradiol (E2) and glutathione (GSH)
Jiali, Jin, Tomofumi, Kurobe, Wilson F, Ramírez-Duarte, Melissa B, Bolotaolo, Chelsea H, Lam, Pramod K, Pandey, Tien-Chieh, Hung, Marie E, Stillway, Leanna, Zweig, Jeffrey, Caudill, Li, Lin, Swee J, Teh   +11 more
openaire   +2 more sources

A Covered Cod-End and Tow-Path Evaluation of Midwater Trawl Gear Efficiency for Catching Delta Smelt (Hypomesus transpacificus) [PDF]

San Francisco Estuary and Watershed Science, 2017
https://doi.org/10.15447/sfews.2017v15iss4art3For nearly 50 years, the California Department of Fish and Wildlife has used a midwater trawl to intensively monitor fish populations in the San Francisco Estuary during the fall, sampling over 100 locations each month.
Lara Mitchell, Ken B Newman, Randall Baxter   +2 more
exaly   +5 more sources