Results 31 to 40 of about 28,215 (245)

Histochemical Analysis of Glycoconjugates in the Mucous Cells in the Gill of Rainbow trout (Oncorhynchus mykiss,W., 1792)

Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2014
: In the present observation, histochemical methods were utilized to understand the structural organization and to categorize the diverse classes of glycoproteins eleborated by the epithelium in various regions of gills of a Rainbow trout, Oncorhynchus ...
Nurgül Şenol, Özlem Yeşil
doaj  

A Tool for Prioritizing Gravel Augmentation Reaches for Sediment Starved Rivers

River Research and Applications, EarlyView.
ABSTRACT Gravel augmentation is a widely used restoration technique used to improve habitat below dams, including salmonids spawning habitat. However, gravel augmentation can be cost‐prohibitive, and it is often unclear which stream segments have the highest potential to benefit spawning salmonids.
Patricia J. Wohner, Peter A. Samarin, James T. Peterson   +2 more
wiley   +1 more source

Applied introduction of ecosystem service modeling of marine aquaculture: Approach for estimation of production and net present value (NPV)

‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 2017
Marine and coastal ecosystems have many benefits and different services for humans that marine aquaculture is one of the most important of these services. Southern coast of Caspian Sea particularly Mazandaran coast have great potential for development of
E Haghshenas; M Gholamalifard email ; N Mahmoudi
doaj  

Cryopreservation Of Rainbow Trout (Oncorhynchus Mykiss) Semen [PDF]

Israeli Journal of Aquaculture - Bamidgeh, 2003
Rainbow trout semen was diluted in one of three extenders (1:3 v/v) containing egg yolk (7-10%) and 10% DMSO as cryoprotectants. The diluted semen was packaged in 0.5 ml straws and frozen in liquid nitrogen (LN2) vapor. For thawing, the straws were immersed in a water bath for 30 sec at 30°C. The best post-thaw motility and fertilization results, 56.67±
Selçuk Secer, Necmettin Tekin, Yusuf Bozkurt, Ergun Akcay   +3 more
openaire   +1 more source

Spatiotemporal Assessment of Groundwater Interactions With a Regulated River: A Case Study of the Nechako River, Canada

River Research and Applications, EarlyView.
ABSTRACT Regulated rivers represent complex hydrological systems where groundwater–surface water interactions are governed by natural conditions and human interventions. This study investigates the spatiotemporal dynamics of groundwater–surface water exchanges in the Nechako River, British Columbia (Canada), using numerical simulations.
Milad Fakhari, John Gray, Avery Dextrase, Andre St‐Hilaire, Richard Martel   +4 more
wiley   +1 more source

Using riverscape genetics to investigate the genetic response of two species and their life-history forms to dam removal

Frontiers in Ecology and Evolution, 2023
Barriers such as hydroelectric dams inhibit migratory pathways essential to many aquatic species, resulting in significant losses of species, their unique life-history forms, and genetic diversity.
Kimberly J. Ledger, Kimberly J. Ledger, Yingxin Su, Jong Yoon Jeon, Aimee H. Fullerton, David Kuligowski, Todd Bennett, Keith Denton, Michael McHenry, John H. McMillan, Joseph H. Anderson, Heidi Connor, Todd R. Seamons, George Pess, Krista M. Nichols, Garrett McKinney, Travis Seaborn, Travis Seaborn, Alexandra K. Fraik   +18 more
doaj   +1 more source

Exploring Interactive Effects of Arsenic and Selenium Exposure on Larval Zebrafish (Danio rerio)

Environmental Toxicology, EarlyView.
ABSTRACT Arsenic contamination in aquatic ecosystems is a major environmental concern. Selenium (Se) helps mitigate oxidative stress and hence could reduce the toxic effects of arsenic. However, Se can also be toxic at high concentrations. Given that these metalloids commonly co‐occur in the environment, there is a pressing need for further research ...
Owen Luo, Jinnath Rehana Ritu, Md Helal Uddin, Sravan Kumar Putnala, Mahesh Rachamalla, Som Niyogi, Douglas P. Chivers   +6 more
wiley   +1 more source

Rainbow trout (Oncorhynchus mykiss) threaten Andean amphibians

Neotropical Biodiversity, 2016
[EN] Amphibian populations are declining due to a myriad of abiotic and biotic factors, including invasive species and pathogens. In temperate freshwater ecosystems, for example, amphibian populations are threatened by the predation of introduced salmonids. Salmonids not only directly predate upon amphibian eggs and larvae but may also transport deadly
Martín-Torrijos, Laura, Sandoval-Sierra, José, Muñoz, Jesús, Diéguez-Uribeondo, Javier, Bosch, Jaime, Guayasamín, Juan   +5 more
openaire   +2 more sources

Abiotic variables drive different aspects of fish community trait variation and species richness across the continental United States

Journal of Animal Ecology, EarlyView.
Trait distributions provide insight into how niches overlap within a broader trait space. By integrating individual‐level trait observations from different communities, we can explore how facets of trait dimensionality vary across environmental conditions.
Alicia McGrew, Crysta Gantz, Brigid Wills, Benjamin Baiser, Sydne Record, Phoebe L. Zarnetske, Angela L. Strecker   +6 more
wiley   +1 more source

Comparative Analysis of Heat Exposure‐Induced Molecular Changes in Two Turtle Species with Contrasting Thermal Adaptations

Integrative Zoology, EarlyView.
Protein processing in the endoplasmic reticulum is highlighted in response to heat stress in Platysternon megacephalum. Under heat stress, the up‐regulation of genes such as CHOP in protein processing in the endoplasmic reticulum pathway, along with the suppression of energy and lipid metabolism and the up‐regulation of JARID2 expression, leads to ...
Jian Hong, Yangchun Gao, Jiaxuan Li, Yan Ge, Yufeng Wei, Youqiang Yin, Qianru Liang, Shiping Gong   +7 more
wiley   +1 more source