Zobrazeno 1 - 10
of 1 607
pro vyhledávání: '"Hydroacoustics"'
Publikováno v:
Frontiers in Marine Science, Vol 11 (2024)
Vegetated coastal marine ecosystems are projected to expand northwards in the Arctic due to climate change, but the mechanisms for this expansion are complex and nuanced. Macroalgal biomass in the littoral areas of Svalbard has been increasing, but d
Externí odkaz:
https://doaj.org/article/afe846b5e77442b8814bff6eeec3ff94
Publikováno v:
Frontiers in Marine Science, Vol 10 (2024)
Scientific monitoring is a fundamental basis of scientific advice. Among others, monitoring aims at contributing towards understanding the influence of anthropogenic use (e.g. fisheries), the health of a stock and individuum and effectiveness of mana
Externí odkaz:
https://doaj.org/article/86ba95862f714431be036232c30cb45f
Autor:
Andrej Hutorowicz
Publikováno v:
Water, Vol 16, Iss 10, p 1368 (2024)
Assessments of changes in the ecological state of aquatic ecosystems are always burdened with uncertainty, which results from environmental reasons and poor repeatability of measurement results of elements enabling the assessment. This study determin
Externí odkaz:
https://doaj.org/article/bd7af23d6c304f858fc96e7ed034e6c5
Autor:
Ömer Kemal Kınacı, Cihad Delen
Publikováno v:
Journal of Eta Maritime Science, Vol 11, Iss 2, Pp 110-118 (2023)
As sound is a propagating pressure wave, it is important to obtain the hydrodynamic pressure oscillations in the fluid to calculate propeller noise. Numerical hydroacoustic simulations generally assume incompressible flow. Time delays in sound propag
Externí odkaz:
https://doaj.org/article/407975a986cd49a395f2f8a738a39860
Autor:
A.S. Zapevalov
Publikováno v:
Physical Oceanography, Vol 30, Iss 2, Pp 160-170 (2023)
Purpose. The study is aimed at analyzing the impact of the effects of the sea waves’ nonlinearity manifested in the skewness of sea surface elevations and in arising of a group structure, upon the generation of infrasound radiation by the sea surfa
Externí odkaz:
https://doaj.org/article/dde0a00f102d475faeccdeb14aca6ee6
Autor:
Andrzej Hutorowicz
Publikováno v:
Water, Vol 16, Iss 2, p 282 (2024)
The idea of the article was to verify the thesis that acoustic studies of ichthyofauna in lakes provide sufficient information to determine the necessity (or lack thereof) of carrying out a full procedure for assessing the ecological status based on
Externí odkaz:
https://doaj.org/article/446cbfe223b3436f95a2231e650fe40a
Autor:
Giacomo Montereale Gavazzi, Silvia Paoletti, Pavlina Podholova, Danae-Athena Kapasakali, Francis Kerckhof
Publikováno v:
Frontiers in Environmental Science, Vol 11 (2023)
Stony reefs are ecologically important, providing irreplaceable ecosystem services. These fragile environments are recognised as conservation priorities by all relevant global and European policies. Bottom-contacting fisheries are an important source
Externí odkaz:
https://doaj.org/article/5942a350eae645b58e576a98c112816e
Autor:
Milan Říha, Marie Prchalová, Marek Brabec, Vladislav Draštík, Milan Muška, Michal Tušer, Daniel Bartoň, Petr Blabolil, Martin Čech, Jaroslava Frouzová, Michaela Holubová, Tomáš Jůza, Karlos R. Moraes, Ruben Rabaneda-Bueno, Zuzana Sajdlová, Allan T. Souza, Marek Šmejkal, Mojmír Vašek, Lukáš Vejřík, Ivana Vejříková, Jiří Peterka, Jan Kubečka
Publikováno v:
Ecological Indicators, Vol 153, Iss , Pp 110425- (2023)
Fish are an important component of aquatic ecosystems, thus representative and reliable assessments of their population variables are essential for a variety of ecological applications, management and conservation. Determining Fish Density per actual
Externí odkaz:
https://doaj.org/article/f3c3d41d944f4ba9bd1fe9ad804859f2
Publikováno v:
Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, Vol 56, Iss 4, Pp 5-18 (2022)
The article presents the results of marine geophysical research of the ancient port area of Chersonesos located in the area of Karantinnaya Bay, which is now about 2–4 m below sea level. Set of methods along with archeological and hydroacoustic typ
Externí odkaz:
https://doaj.org/article/97fb0ec852e14d2b919d452ec26e1494