Silent uncrewed surface vehicles reveal the diurnal vertical distribution of lesser sandeel DOI Creative Commons

Sakura Komiyama,

Arne Johannes Holmin, Geir Pedersen

et al.

ICES Journal of Marine Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 6, 2024

Abstract Lesser sandeel (Ammodytes marinus) exhibits a peculiar diel vertical migration (DVM) during the feeding season, burying into seabed at night and emerging daytime to form schools that feed on zooplankton. Large may consist of pelagic component searching for prey bottom connected by collective bridge-like formations. However, temporal variation in schools’ distribution is poorly understood. In this study, 38 200 kHz acoustic data recorded with Saildrones were used examine schooling dynamics their main season May–June. A total 1497 identified linear discriminant analysis displayed two distinct components throughout season: one zone near seabed. The was distributed deepest noon had similar pattern zooplankton DVM, suggesting followed prey. Their diurnal ascension greater both distance hours May than June, decline motivation towards end season. These findings made possible long-term monitoring silent Saildrones, which did not seem affect natural behaviour schools.

Language: Английский

Impacts of different types of data integration on the predictions of spatio-temporal models: A fishery application and simulation experiment DOI
Arnaud Grüss, Richard L. O’Driscoll, James T. Thorson

et al.

Fisheries Research, Journal Year: 2025, Volume and Issue: 284, P. 107321 - 107321

Published: March 11, 2025

Language: Английский

Citations

0

Synthesizing the spatial functionality of contemporary stock assessment software to identify future needs for next generation assessment platforms DOI
Aaron M. Berger, Caren Barceló, Daniel R. Goethel

et al.

Fisheries Research, Journal Year: 2024, Volume and Issue: 275, P. 107008 - 107008

Published: April 16, 2024

Language: Английский

Citations

3

Fisheries independent surveys in a new era of offshore wind energy development DOI Creative Commons
Andy Lipsky, Ângela Silva,

Fiona Gilmour

et al.

ICES Journal of Marine Science, Journal Year: 2024, Volume and Issue: unknown

Published: May 10, 2024

Abstract Fisheries independent surveys require rethinking because of increasing spatial restrictions and interactions with offshore wind energy development (OWD). Fisheries, protected species, environmental data collections have been conducted by scientific institutions to meet societal demands for food security, conservation, other marine uses. These provide information on key resource measures, essential fisheries, ecosystem management. With the increase in pace magnitude OWD's industrialization waters, disruptions these long-term time series can be expected. will impact ability support current future management goals objectives. This paper presents an expert survey perceptions OWD common designs methodologies Europe U.S., along a selected sample 75 fisheries U.S. providing initial assessment description potential impacts from OWD. About 72% sampled record operational, planned or Four case studies demonstrate efforts address within European regions that operational where has just begun. Finally, we make recommendations research important continue meaningful scientific-based advice.

Language: Английский

Citations

3

Uncrewed surface vehicles (USVs) as platforms for fisheries and plankton acoustics DOI Creative Commons
Nils Olav Handegard, Alex De Robertis, Arne Johannes Holmin

et al.

ICES Journal of Marine Science, Journal Year: 2024, Volume and Issue: 81(9), P. 1712 - 1723

Published: Aug. 30, 2024

Abstract Uncrewed surface vehicles (USVs) equipped with echosounders have the potential to replace or enhance acoustic observations from conventional research vessels (RVs), increase spatial and temporal coverage, reduce cost carbon emission. We discuss objectives, system requirements, infrastructure, regulations for using USVs conduct ecological experiments, acoustic-trawl surveys, long-term monitoring. present four example applications of lengths <8 m, highlight some advantages disadvantages relative RV-based data acquisitions. Sail-driven operate continuously months are more mature than motorized USVs, but they slower. To maintain pace an RV, multiple sail-powered sample in coordination. In comparison, can travel as fast RVs therefore may facilitate a combined survey, interleaving USV RV transects, biological sampling. Important considerations all include platform design, noise transducer motion mitigation, communications operations onboard processing, sampling approach, legal requirements. This technology is evolving applied disciplines, further development institutional commitment needed allow become ubiquitous useful components worldwide network autonomous ocean observation platforms.

Language: Английский

Citations

2

Silent uncrewed surface vehicles reveal the diurnal vertical distribution of lesser sandeel DOI Creative Commons

Sakura Komiyama,

Arne Johannes Holmin, Geir Pedersen

et al.

ICES Journal of Marine Science, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 6, 2024

Abstract Lesser sandeel (Ammodytes marinus) exhibits a peculiar diel vertical migration (DVM) during the feeding season, burying into seabed at night and emerging daytime to form schools that feed on zooplankton. Large may consist of pelagic component searching for prey bottom connected by collective bridge-like formations. However, temporal variation in schools’ distribution is poorly understood. In this study, 38 200 kHz acoustic data recorded with Saildrones were used examine schooling dynamics their main season May–June. A total 1497 identified linear discriminant analysis displayed two distinct components throughout season: one zone near seabed. The was distributed deepest noon had similar pattern zooplankton DVM, suggesting followed prey. Their diurnal ascension greater both distance hours May than June, decline motivation towards end season. These findings made possible long-term monitoring silent Saildrones, which did not seem affect natural behaviour schools.

Language: Английский

Citations

1