Results 41 to 50 of about 430 (170)

Diversity Under Pressure: Long‐Term Genetic Decline in California's Central Valley Chinook Salmon ESA Listed Runs

Ecology and Evolution, Volume 16, Issue 8, August 2026.
Chinook salmon in the Central Valley of California have notable intraspecific diversity because it is the only place where four distinct migration timings (Winter, Spring, Fall, Late‐fall) co‐occur. The Winter run is listed as Endangered and the Spring run is listed as Threatened under the Endangered Species Act. To quantify temporal changes in genetic
E. E. Collins, T. Q. Thompson, P. Goertler, M. R. Baerwald, M. H. Meek   +4 more
wiley   +1 more source

Increasing artificial light at night enhances salmonid predator foraging efficiency in an urbanized lake

Limnology and Oceanography, Volume 71, Issue 8, August 2026.
Abstract Artificial light at night (ALAN) poses a threat to ecosystems globally. It includes both direct and indirect light, or skyglow, which occurs when ALAN scatters in the atmosphere, extending beyond its original source. We analyzed ALAN trends in Lake Washington, WA, from 2014 to 2023 using Visible Infrared Imaging Radiometer Suite (VIIRS ...
Jennifer A. Schulien, Tessa Code
wiley   +1 more source

The Meso- and Bathypelagic Fishes in a Large Submarine Canyon: Assemblage Structure of the Principal Species in the Gully Marine Protected Area

Frontiers in Marine Science, 2020
Midwater trawl surveys were conducted during 2007–10 at meso- and bathypelagic depths in and near The Gully, a large submarine canyon off Nova Scotia that is also a Marine Protected Area.
Trevor John Kenchington, Daphne E. Themelis, Shannon Colleen DeVaney, Ellen Lorraine Kenchington   +3 more
doaj   +1 more source

Exploration of the “larval pool”: development and ground-truthing of a larval transport model off leeward Hawai‘i [PDF]

PeerJ, 2016
Most adult reef fish show site fidelity thus dispersal is limited to the mobile larval stage of the fish, and effective management of such species requires an understanding of the patterns of larval dispersal.
Johanna L.K. Wren, Donald R. Kobayashi
doaj   +2 more sources

Biodiversity of North Sea Pelagic Cephalopod Early Life Phases

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 7, July 2026.
ABSTRACT Cephalopods are increasing in biomass and abundance in the North Sea. In addition to their amplified importance for the ecosystem, they have also become a relevant resource for fisheries and landings are rising. Besides a growing knowledge about cephalopod biology, many gaps exist about the early life phases (ELP) of cephalopods. For the first
Verena Vollmer, Bianca T. C. Bobowski, Bastian Huwer, Hannah Holah, Hermann Neumann, Magnus Reeve, Maria Ovegård, Malin Werner, Anders Wernbo, Karolina Wikström, Daniel Oesterwind   +10 more
wiley   +1 more source

A study of approach to assessing a functional relationship between solidity ratios for the rope/net part of midwater trawl

Известия ТИНРО, 2020
In this paper we have analyzed an approach to assessing the relationship between some characteristics of the net panels forming the rope/net cone of a fishing trawl.
L. M. Simkin
doaj   +1 more source

Integrating Water Column and Sediment eDNA Metabarcoding Reveals Seasonal Turnover and Habitat‐Specific Differentiation of Fish Communities in a Subtropical Coastal Bay

Ecology and Evolution, Volume 16, Issue 7, July 2026.
This study contributes foundational data for advancing eDNA‐based biomonitoring in subtropical marine ecosystems and supports the development of more targeted conservation and adaptive management strategies amid increasing anthropogenic pressures.
Shannan Xu, Yayuan Xiao, Min Li, Jiangtao Fan, Zuozhi Chen   +4 more
wiley   +1 more source

Modeling of the Midwater Trawl Dynamical Behavior Based on R Language [PDF]

Proceedings of the 2015 International Conference on Mechatronics, Electronic, Industrial and Control Engineering, 2015
The midwater trawl is used widely in many oceanic fisheries. In this study, the midwater trawl dynamical behavior was simulated and modeled with the mathematical mechanic equations based on R language platform. A lump-mass and spring method was used to build the physical model.
Yingqi Zhou, Liming Song, Xinjun Chen, Min Zhang, Xinfeng Zhang, Xiaorong Zou, Yuwei Li   +6 more
openaire   +1 more source

Worldwide Invasions of Centrarchidae: The Dark Side of the Sunfish Family

Fish and Fisheries, Volume 27, Issue 4, Page 781-812, July 2026.
ABSTRACT Freshwater fish invasions are major drivers of global ecological change, disrupting native biodiversity and ecosystem functions. However, many invasive fish hold significant socioeconomic value, resulting in conflict over their management. Centrarchidae, which are globally distributed and are important for sportfishing and aquaculture, are now
Neil Angelo Abreo, Jonathan Tibo, António Barbosa Nogueira, Athanasios Nikolaou, Cüneyt Kaya, Ali Serhan Tarkan, Irmak Kurtul, Stelios Katsanevakis, Ronaldo Sousa, Teun Everts, Emili García‐Berthou, John S. Hargrove, Ana Clara Sampaio Franco, Jelger Erik Herder, Julian D. Olden, Darragh J. Woodford, Antonín Kouba, J. Rob Britton, Ismael Soto, Phillip J. Haubrock   +19 more
wiley   +1 more source

Shape and Hydrodynamic Characteristics of Canvas Kite for Midwater Trawl.

NIPPON SUISAN GAKKAISHI, 1999
キャンバスカイトの流体特性を明らかにするために, 形状の異なる5種類のキャンバスカイトの模型を用いて, 0.2から0.5までの4段階の異なるキャンバーと迎角30°から130°の範囲で水槽実験を行った。実験で得られた揚力と抗力から求めた最大揚力係数と最大揚抗比は, I型の反り比0.2と迎角度50°で, それぞれ1.37と2.00であった。また, 簡単な構造の拡網装置としてキャンバスカイトを用いるには, I型が最適形状であるといえた。
Ishizaki, Munechika, Fuwa, Shigeru
openaire   +2 more sources