Zobrazeno 1 - 10
of 174
pro vyhledávání: '"Dezhang Chu"'
Autor:
Lars Nonboe Andersen, Dezhang Chu, Nils Olav Handegard, Harald Heimvoll, Rolf Korneliussen, Gavin J. Macaulay, Egil Ona, Ruben Patel, Geir Pedersen
Publikováno v:
Methods in Ecology and Evolution, Vol 15, Iss 2, Pp 317-328 (2024)
Abstract The use of quantitative broadband echosounders for biological studies and surveys can offer considerable advantages over narrowband echosounders. These include improved spectral‐based target identification and significantly increased abili
Externí odkaz:
https://doaj.org/article/7e7951ef7a9648f0b84bf8651e8615cc
Autor:
Derek G. Bolser, Aaron M. Berger, Dezhang Chu, Steve de Blois, John Pohl, Rebecca E. Thomas, John Wallace, Jim Hastie, Julia Clemons, Lorenzo Ciannelli
Publikováno v:
Frontiers in Marine Science, Vol 10 (2023)
Generating biomass-at-age indices for fisheries stock assessments with acoustic data collected by uncrewed surface vessels (USVs) has been hampered by the need to resolve acoustic backscatter with contemporaneous biological (e.g., age) composition da
Externí odkaz:
https://doaj.org/article/fad4a2cf5f2943319a46842bce0beca8
Publikováno v:
Journal of Marine Science and Engineering, Vol 11, Iss 3, p 473 (2023)
The Kirchhoff-Ray-Mode (KRM) model has been used in fishery acoustics for more than two decades to predict backscatter by individuals or aggregations of swimbladdered fish. Backscatter contributions from a fluid-like fish body and gas-filled swimblad
Externí odkaz:
https://doaj.org/article/5fe9ea2d5df046acb4d816fe59507849
Autor:
Charles H. Greene, Erin L. Meyer-Gutbrod, Louise P. McGarry, Lawrence C. Hufnagle Jr, Dezhang Chu, Sam McClatchie, Asa Packer, Jae-Byung Jung, Timothy Acker, Huck Dorn, Chris Pelkie
Publikováno v:
Oceanography, Vol 27, Iss 4, Pp 168-174 (2014)
Possessing the world's largest Exclusive Economic Zone (EEZ), the United States enjoys the benefits of a multi-billion dollar commercial fishing industry. Along with these benefits comes the enormous task of assessing the status of the nation's comme
Externí odkaz:
https://doaj.org/article/bd89fba47e424b9b8765d806099c7f2d
Autor:
Elizabeth M Phillips, Dezhang Chu, Stéphane Gauthier, Sandra L Parker-Stetter, Andrew O Shelton, Rebecca E Thomas
Publikováno v:
ICES Journal of Marine Science. 79:1312-1326
Euphausiids, or krill, are important energy links between primary producers and higher trophic levels in the California Current Ecosystem (CCE), but a thorough understanding of their variability at the coast-wide scale is limited. Using fisheries aco
Autor:
Andrew Olaf Shelton, Ana Ramón-Laca, Abigail Wells, Julia Clemons, Dezhang Chu, Blake E. Feist, Ryan P. Kelly, Sandra L. Parker-Stetter, Rebecca Thomas, Krista M. Nichols, Linda Park
Publikováno v:
Proceedings. Biological sciences. 289(1971)
All species inevitably leave genetic traces in their environments, and the resulting environmental DNA (eDNA) reflects the species present in a given habitat. It remains unclear whether eDNA signals can provide quantitative metrics of abundance on wh
Publikováno v:
The Journal of the Acoustical Society of America. 148:100-107
Accurate estimates of acoustic absorption in seawater are crucial to the acoustic estimation of aquatic biomass. Estimates of acoustic absorption were obtained via a “pulse-echo” method, implemented using commonly available scientific echosounder
Publikováno v:
The Science of the total environment. 794
Cyanobacterial harmful algal blooms (HABs) are increasing in a growing number of aquatic ecosystems around the world due to eutrophication and climatic change over the past few decades. Quantitative monitoring of HABs remains a challenge because thei
Publikováno v:
The Journal of the Acoustical Society of America. 151:3398-3398
Autor:
Sandra Parker-Stetter, Dezhang Chu, Chelsea Stanley, Julia E.R. Getsiv-Clemons, Rebecca E. Thomas, Stéphane Gauthier, Lawrence C. Hufnagle
Publikováno v:
OCEANS 2019 MTS/IEEE SEATTLE.
Five Unmanned Surface Vehicles (USVs) were deployed off the west coasts of the U.S. and Canada in summer 2018 as a first step toward evaluating the effectiveness and efficacy of USVs as survey/research platforms. The Saildrone USVs (Saildrone, Inc.)