Results 111 to 120 of about 7,291 (302)

Solving the Capacitated Arc Routing Problem Using Logic‐Based Benders Decomposition

Networks, EarlyView.
ABSTRACT In this paper, we present a new exact algorithm for solving the capacitated arc routing problem using logic‐based benders decomposition. The master problem is formulated based on variables that measure the number of deadheadings of each edge. These variables have been converted into binary form, which enables the use of both new and stronger ...
Alexander Ingemann Lindhardt, Sanne Wøhlk, Michael M. Sørensen   +2 more
wiley   +1 more source

A framework for investigating fish population density responses to habitat fragmentation

Oikos, EarlyView.
Globally, fish populations that rely on rivers are being fragmented by in‐stream barriers, but it is unclear how pervasive any negative population responses to fragmentation are. We developed a modeling framework for estimating density responses of fishes upstream and downstream of in‐stream barriers and applied it to learn how low‐head dams have ...
Sean A. Lewandoski, Gale Bravener, Nathan Coombs, Robert McLaughlin   +3 more
wiley   +1 more source

Declines in the diversity of fish represented in British domestic recipes over the past 100 years

People and Nature, EarlyView.
Abstract Fish and shellfish are nutritionally important foods, yet consumption in many high‐income countries remains low and concentrated on a narrow set of environmentally costly species. In the United Kingdom, fish consumption is dominated by a small group of fish, the ‘Big Five’, which is often treated as an inevitable outcome of supply, convenience
Ruth H. Thurstan
wiley   +1 more source

THE GROWTH AND CONDITION OF COMMON CARPS (Cyprinus carpio) INTRODUCED INTO CROATIAN VRANSKO JEZERO [PDF]

Croatian Journal of Fisheries, 1995
In the late forties the freshwater Mediterranean Vransko lake was stocked with common carps (97,5% mirror ones of farm origin and 2,5% scaled ones of river origin).
Tomislav Treer, Ivica Aničić, Roman Safner   +2 more
doaj  

The practice and effectiveness of ecological operation experiment on spawning of the four major Chinese carps by Three Gorges Reservoir

MATEC Web of Conferences, 2018
Eco-operation experiment by the Three Gorges Reservoir was carried out ten times to facilitate spawning of the four major Chinese carps in the lower reaches of Yangtze River, from 2011 to 2017. To get knowledge of fish spawning response to man-made flood
Xu Wei, Chen Xiaojuan, Tao Jiangping, Jun Cao   +3 more
doaj   +1 more source

A Functional Flows Framework for the Terminal Great Salt Lake Basin: Can We Have Our Lake and Drink It Too?

River Research and Applications, EarlyView.
ABSTRACT Terminal basins provide unique aquatic environments that are often highly sensitive to streamflow contributions, making them a focal point for environmental water management. However, the water needs for terminal lake, wetland, and river ecosystems, and how they relate, remain a fundamental knowledge gap that constrains our ability to ...
Belize Lane, Melissa Stamp, Sarah E. Null, Paul Thompson, Jeffrey Ostermiller, Farah Nusrat, Noelle Patterson, Maddie Witte, Bethany Neilson, Michelle Baker   +9 more
wiley   +1 more source

Analysis of productive and biological parameters of age-1+ carp crossbreed obtained by synthetic selection method in the Polissya zone of Ukraine

Ribogospodarsʹka Nauka Ukraïni
Purpose. To provide a comprehensive productive and biological characteristic and conduct a comparative analysis of the main productive parameters between purebred age-1+ Lyubin scaly carps and crossbreeds, which were obtained from crossing the offspring ...
H. Kurinenko, U. Kuts, М. Ostapchuk, S. Yurchak   +3 more
doaj   +1 more source

Carpe Diubiquitin [PDF]

Angewandte Chemie International Edition, 2010
Langdon J, Martin, Ronald T, Raines
openaire   +2 more sources

Fish Migration Through Ship Locks at the Danube River, Austria

River Research and Applications, EarlyView.
ABSTRACT Longitudinal connectivity in the Austrian section of the Danube has improved over the last three decades thanks to the progressive installation of fish passage facilities at hydropower plants. However, navigation locks which are present at all barrages remain poorly quantified with respect to their role in fish migration.
Walter Reckendorfer, Barbara Grüner, Renate Degen, Regina Petz‐Glechner, Ursula Scheiblechner, Michael Schabuss   +5 more
wiley   +1 more source

How Tough a Passage? Nonnative Fish Entrainment Survivability at a Major Dam in the Western USA

River Research and Applications, EarlyView.
ABSTRACT The Colorado River downstream of Glen Canyon Dam (GCD) in the southwest USA demonstrates anthropogenic modification including altered flow and temperature regimes and established nonnative species in upstream reservoirs. Water overallocation and megadrought are contributing to new potential invasion pathways for nonnative fishes through dam ...
Barrett Friesen, Casey A. Pennock, Phaedra Budy   +2 more
wiley   +1 more source