Results 71 to 80 of about 16,128 (317)

Dam Submergence Flows: An Environmental Flow Prescription Designed to Aid Migratory Fish Passage

River Research and Applications, EarlyView.
ABSTRACT As part of a holistic ecosystem‐focused set of unified flow prescriptions, natural spring flood events were enhanced with releases from an upstream reservoir on the Cape Fear River in North Carolina (USA) to submerge a series of low‐use, low‐head lock‐and‐dam structures for anadromous fish to move upstream.
Aaron J. Bunch, Troy M. Farmer, Kyle Rachels, Ashley E. Hatchell, Jeremy McCargo, Fred S. Scharf, Julie E. DeMeester   +6 more
wiley   +1 more source

Reviewing the Potential for Behavioral Guidance to Improve Downstream Passage of Out‐Migrating Anguillid Eels

River Research and Applications, EarlyView.
ABSTRACT Hydroelectric dams and their turbine infrastructure threaten out‐migrating anguillid eels en route to marine spawning grounds. For decades, invested parties have attempted to guide eels away from turbines and toward safe passage routes. A subset of this work (hereafter behavioral guidance) has involved exploiting sensory biology (e.g., sight ...
M. E. Cole MacLeod, Thomas C. Pratt, Chris K. Elvidge, Paul S. Kemp, Steven J. Cooke   +4 more
wiley   +1 more source

The Record of the Last Sturgeons Caught in the Po River (North Italy) Tells a Cautionary Tale of Reasons of Their Silent Disappearance

River Research and Applications, EarlyView.
ABSTRACT Three sturgeon species—the common European (A. sturio), beluga (H. huso), and Adriatic sturgeon (A. naccarii)—coexisted in the Po River Basin until the mid‐1970s, representing centuries of bio‐cultural heritage for northern Italy's riverine communities.
Samuele Pagani, Giuseppe Castaldelli, Leonardo Congiu, Paolo Bronzi, Remigio Rossi, Mattia Lanzoni   +5 more
wiley   +1 more source

Marine recreational fisheries statistics survey for northern and central California, Quarterly Report no. 2, October to December, 1979 [PDF]

, 1987
Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in October to December 1979, is presented in a data report format.
Karpov, Konstantin A., Kwiecien, Gerald S., Mello, John J.   +2 more
core  

A Mark‐Recapture Estimate of the Number of American Eels Arriving at the Lowermost Barrier on the Wolastoq|Saint John River, Canada

River Research and Applications, EarlyView.
ABSTRACT The upstream migration of juvenile American eels (Anguilla rostrata) is frequently obstructed by dams and other in‐stream barriers, leading to habitat loss and fragmentation, factors that are believed to contribute to the species' population decline.
Felix Eissenhauer, Tommi Linnansaari, Thomas C. Pratt, R. Allen Curry, Philip M. Harrison   +4 more
wiley   +1 more source

Effect of probiotic “Subalin” on the productive parameters of age-0+ sturgeon hybrid (Acipenseridae) — bester under conditions of thermal load

Ribogospodarsʹka Nauka Ukraïni
Purpose. To determine the effect of adding the probiotic “Subalin” to the diet under conditions of elevated water temperature on productive parameters of age-0+ bester. Methodology.
Yu. Onyshchuk, O. Tretiak, O. Kolos
doaj   +1 more source

FinTech services from BigTech companies

Systems Research and Behavioral Science, EarlyView.
Abstract The so‐called BigTech companies Amazon, Alphabet, Apple and Meta and are constantly attempting to grow into new business areas. Due to their expertise in data analysis, they have managed to quickly establish themselves in many industries as digital ecosystems and, as part of this strategy, are also expanding their footprint in financial ...
Thomas Puschmann, Engjull Halimi
wiley   +1 more source

TO THE TOPIC ON THE CONTRIBUTION OF INTERNATIONAL ORGANIZATIONS TO THE PRESERVATION OF THE BIO-RESOURCES STOCKS OF THE CASPIAN SEA

Юг России: экология, развитие, 2017
Aim. The purpose of the work was to assess the activity of international organizations and determine theirs contribution to the preservation and rational use of water biological resources of the Caspian Sea and their inhabitant in the period after 1991 ...
R. T. Asanov, E. A. Barskova, V. N. Pal'tsev, S. V. Shipulin   +3 more
doaj   +1 more source

Integrated Use of Oxidative Stress and Histological Biomarkers of T. tinca as Indicators of 17‐Alpha‐Ethynylestradiol Exposure

Environmental Toxicology, EarlyView.
ABSTRACT The potential adverse effects of 17‐alpha‐ethynylestradiol (50, 100, and 500 μg EE2/kg b.w., for 30 days) on tench (Tinca tinca) were evaluated by integrating biomarkers including physiological (hepato‐somatic index, spleen‐somatic index, and hematocrit), oxidative stress (catalase, glutathione peroxidase, and glutathione reductase activities;
Ana L. Oropesa, Alfonso Ramos, Cesar Fallola, Luis J. Gomez   +3 more
wiley   +1 more source

Effect of the complex of probiotic microorganisms of the genus Bacillus on the growth, histological structure of intestines and the resistance of sturgeon hybrid juveniles

Ribogospodarsʹka Nauka Ukraïni
Purpose. The purpose of this work is to evaluate the effect of a complex of probiotic microorganisms from the genus Bacillus, namely Bacillus subtilis, B. pumilus, B. licheniformis and B.
Yu. Zabytivskyi, Ya. Tuchapskyi, O. Dobryanska, I. Boretska, O. Vishchur   +4 more
doaj   +1 more source