Local reflects global: Life-stage dependent changes in the phenology of coastal habitat use by North Sea herring DOI Creative Commons
Mark Rademaker, Myron A. Peck, Anieke van Leeuwen

et al.

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2023, Volume and Issue: unknown

Published: Nov. 23, 2023

Abstract Climate warming is affecting the suitability and utilisation of coastal habitats by marine fishes around world. Phenological changes are an important indicator population responses to climate-induced but remain difficult detect in fish populations. The design large-scale monitoring surveys does not allow fine-grained temporal inference responses, while ecologically economically species groups such as small pelagic particularly sensitive resolution. Here, we use longest, highest-resolution time series composition abundance northern Europe possible phenological shifts North Sea herring. We a clear forward shift phenology nearshore habitat juvenile This can best be explained water temperatures Sea. find that reducing resolution our data reflect typical larger makes it drastically reduces effect sizes environmental covariates seawater temperature. Our study therefore shows how local, long-term, high-resolution catches essential understand general climate define ecological indicators system-level changes.

Language: Английский

The biological soundscape of temperate reefs in the Wadden sea DOI Creative Commons
Maryann S. Watson, Annebelle C. M. Kok, Ilse van Opzeeland

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 17, 2025

Monitoring coastal marine habitats presents many challenges. Often, using multiple approaches to capture different aspects of ecosystems can strengthen the information gained regarding habitat status. The use passive acoustics document, describe, and monitor through soundscapes one such complementary technique. Marine have not yet been described for Wadden Sea; an ecosystem where reef experienced major changes over time due various human-mediated impacts. Recordings at a subtidal shellfish neighbouring sandflat six 2-week periods 14 month period in 2021 2022 provide first catalogue biotic acoustic signatures this ecosystem. Furthermore, recordings from two natural sites were compared recently deployed artificial sites, showing similar patterns greater diversity reefs nearby sandflats. These results demonstrate that fine-scale differences exist across within small geographic scales. This study provides foundations further quantitative research PAM soundscape dynamics Sea understanding role sound changing ecosystems.

Language: Английский

Citations

0
Small pelagic fish: new frontiers in ecological research DOI Creative Commons
Myron A. Peck, Ignacio A. Catalán, Susana Garrido

et al.

Marine Ecology Progress Series, Journal Year: 2024, Volume and Issue: 741, P. 1 - 6

Published: July 1, 2024

Populations of small pelagic fish (SPF), such as sardines, anchovies and herrings, support some the largest marine fisheries globally are critical for trophic transfer in large ecosystems food security, particularly low- to medium-income countries. Marked changes population size, shifts distribution on multiple time scales, impacts their populations from other pressures (e.g. overfishing, climate change) pose challenges sustainably manage these resources avoid serious socioeconomic ecological collapses. The ecology management SPF was discussed an international symposium Lisbon, Portugal, attracting participants 38 countries 6 continents. This Theme Section includes 18 research contributions examining different regions alongside 3 global analyses. These studies, including a wide range topics parasitology, behavior trophodynamics growth spawning, provide important new knowledge that will improve science-based advice tools needed sustainable, ecosystem-based resources. milestone working group sowed seeds continued, coordinated efforts role complex socio-ecological systems.

Language: Английский

Citations

3
Local reflects global: Life stage‐dependent changes in the phenology of coastal habitat use by North Sea herring DOI Creative Commons
Mark Rademaker, Myron A. Peck, Anieke van Leeuwen

et al.

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(4)

Published: April 1, 2024

Abstract Climate warming is affecting the suitability and utilization of coastal habitats by marine fishes around world. Phenological changes are an important indicator population responses to climate‐induced but remain difficult detect in fish populations. The design large‐scale monitoring surveys does not allow fine‐grained temporal inference responses, while ecologically economically species groups such as small pelagic particularly sensitive resolution. Here, we use longest, highest resolution time series composition abundance northern Europe possible phenological shifts North Sea herring. We a clear forward shift phenology nearshore habitat juvenile This might be linked water temperatures Sea. next assessed robustness effects found with respect design. find that reducing our data reflect typical larger makes it drastically reduces effect sizes environmental covariates seawater temperature. Our study therefore shows how local, long‐term, high‐resolution catches essential understand general climate define ecological indicators system‐level changes.

Language: Английский

Citations

2
Autonomous Data Sampling for High-Resolution Spatiotemporal Fish Biomass Estimates DOI
Astrid A. Carlsen, Michele Casini, Francesco Masnadi

et al.

Published: Jan. 1, 2024

Many key ecological dynamics such as biomass distributions are only detectable on a fine spatiotemporal scale. Autonomous data collection with Unmanned Surface Vehicles (USV) creates new possibilities to sample aquatic high resolution over large areas by being cost efficient. However, the extent of spatial coverage and final sampling remain uncertain due novelty technology. Further, there is no established method for analysing fine-scale autocorrelated without aggregation, compromising sought resolution. We here used USV an echosounder, conductivity-temperature sensor flourometer collect from April-July 2019-2023 in 60x80km area central Baltic Sea. The covered total distance 8000 nmi, 42-81 days per year, average speed 0.5m/s. combined hydroacoustic publically available hydrographic variables Copernicus Marine Service Information (CMSI) describe seasonal distribution small pelagic fish community. Key oceanographic collected were correlated CMSI estimates at daily/monthly resolution, respectively, test suitability scale (Temperature 0.99/0.97; Salinity -0.77/-0.26; Chlorophyll-a 0.12/0.28). investigated two approaches Species Distribution Models (SDMs): generalized additive models (GAM) versus linear mixed effect (GLMM). GLMMs explained observed better than GAMs (R2 0.31 0.20, respectively). addition environmental increased explanatory capability GAM GLMM 25% ~3%, respectively. Due we found significant amounts autocorrelation (R: 0.30-0.05) across more 50 lags observation. that diel patterns detection strongly affected abundance vertically migrating species hiding 'acoustic dead zone' near seabed. Such could be estimated corrected predictions high-resolution data, complicating trade-off between SDMs. compared sizes/directions identical SDMs 2x2km/month aggregated (i.e non-autocorrelated) observations non-aggregated (i.e. autocorrelated) observations, relatively little difference estimates. For first time, predicted community essential breeding top predators, opening up applications studies locally globally.

Language: Английский

Citations

1
Small pelagic fish in the shallow Wadden Sea show opportunistic feeding with a strong benthic link DOI Creative Commons
Margot A.M. Maathuis, Ingrid Tulp, Sophie Valk

et al.

ICES Journal of Marine Science, Journal Year: 2024, Volume and Issue: 81(8), P. 1521 - 1535

Published: July 26, 2024

Abstract Small pelagic fish (SPF) are crucial in marine food webs, transferring energy from plankton to higher trophic levels. This study focuses on herring (Clupea harengus) and sprat (Sprattus sprattus), addressing knowledge gaps their feeding ecology a nursery area, the Dutch Wadden Sea. We conducted year-long, monthly survey, used DNA metabarcoding analyse zooplankton samples stomach contents of two size classes sprat. Intra-, interspecific, seasonal variations condition, fullness, diet composition, along with selective feeding, were studied. Our showed that condition composition sprat, density, exhibited clear pattern. Juvenile displayed opportunistic behaviour, rather than showing distinct prey selection. Besides copepods, we regularly observed (larvae of) benthic invertebrates diet. emphasizes role SPF as transfer agents, not solely between levels, but also habitats. Furthermore, post-larvae part larger (10–15 cm). Because its unprecedented temporal taxonomical detail, this advances understanding dynamics dominant components at base Sea web.

Language: Английский

Citations

1
Research and Monitoring plan Fish Migration River (FMR) DOI Creative Commons
H.V. Winter, A.B. Griffioen,

L. Perk

et al.

Published: Jan. 1, 2024

Nederlandse samenvatting'coupure' through the dyke with a parallel vertical slot fish passage, 4) natural inland part, 5) more meandering technical part separation walls and 6) an inlet sluice complex (four gates, slots) at IJsselmeer-side.Devices for continuously monitoring abiotic dynamics, e.g.water levels, flow salinity, infrastructure later deployment of equipment, e.g.different types nets, telemetry antennae receivers, will be built in during construction. Research questions related to functioning effectiveness FMRThis study explores various aspects migration relation FMR Afsluitdijk barrier.It discusses processes influencing movement towards barrier, emphasizing significance understanding attraction mechanisms patterns.Environmental biological cues Wageningen Marine report C020/24 | 7 81 such as salinity gradients, tidal currents, odors play crucial roles attracting barrier.Within FMR, factors like windows, environmental variables, potential disruptions affect behavior passage efficiency.The creates new habitat currents behavior.However, impact potentially disruptive noise artificial light on efficiency requires further investigation.Additionally, effects populations, including population size, energy budget, selection pressures, other bottlenecks life cycle, should examined.It also considers unintended routes (e.g.flushing out sea), climate change effects, need adaptive management strategies optimize amidst changing conditions extreme conditions.The research program concerning is structured around five main topics: functioning, success, optimization habitat, larger scale effect communities, food webs: Q1: Abiotic Functioning FMR: During design phase, was assessed using hydrodynamic modeling.The goal create optimal while preventing sediment washout maintaining appropriate water levels gradients.However, uncertainties remain regarding model accuracy, optimizations, gate operation regimes, freshwater discharge from Lake IJsselmeer.Q2: Passage Success: Efficient Kornwerderzand crucial.The aims determine overall efficiency, within FMR.A detailed involves tagging studying their identify routes. Q3: Optimization FMR:If considered too low, can necessary.This identifying resolving stepwise approach.Factors behavior, hydrodynamics, structures, losses physiological are considered.The ultimate use insights adjust schemes growing provided by performed. Q4: Habitat:In addition facilitating serve temporary migratory predators.Research focus acclimatization saltwater freshwater, estuarine species, foraging opportunities, predation risks, interactions marine mammals birds.Understanding FMR's role evaluating its effectiveness. Q5: Effect population, community, web:The webs considering structure, spatial scales use, bottlenecks, human-impacted factors, trends abundance, web relations.However, addressing these comprehensive investment due complexity dynamics which outside direct this plan.Overall, gain data knowledge migration, restore ecological connectivity, promote sustainable populations ecosystem health region.By gaps, broader context, seeks develop effective FMR. General approach phasing activitiesThe plan into four phases:1) construction phase (pre-phase): 2024-2025.Preparatory activities include permit applications design.Monitoring devices specific tested, initial collection begins.2) Adjustment I: end 2025-2026.The begins operation, focusing under regular weather conditions.Biotic measurements netting programs provide preliminary efficiency.3) II: 2027.Further exceptional meteorological conditions.Extended bottleneck analyses conducted.

Language: Английский

Citations

0
Acoustic observations of walleye pollock (Gadus chalcogrammus) migration across the US-Russia boundary in the northwest Bering Sea DOI Creative Commons
Robert M. Levine, Alex De Robertis, Christopher Bassett

et al.

ICES Journal of Marine Science, Journal Year: 2024, Volume and Issue: 81(6), P. 1111 - 1125

Published: June 19, 2024

Abstract The degree to which walleye pollock (Gadus chalcogrammus, hereafter pollock) move between the US and Russian zones of Bering Sea is a key source uncertainty for fisheries management. To study transboundary migrations across US–Russia maritime boundary explore how climate variability might influence these migrations, four seafloor-mounted echosounder moorings were deployed from July 2019 August 2020 in northwestern Sea. observations indicated that substantial amount moves Russia seasonally, with period southeast movement into as winter sea ice forms northwest early summer waters warm. Over deployment period, 2.3-times more backscatter moved zone fall than exited subsequent spring summer. We hypothesize difference net regions was driven by moving farther during historically warm conditions at start reduced return migration following when temperatures relatively cooler. This supports hypothesis temperature affects distribution, continued warming will lead larger proportion stock waters.

Language: Английский

Citations

0
Het functioneren van het Eems estuarium voor vis: literatuurstudie en meerjarig onderzoeksplan DOI
Ingrid Tulp, A.B. Griffioen, H.V. Winter

et al.

Published: Jan. 1, 2024

Input workshop voor breed gedragen onderzoeksplan

Citations

0
Community structure and diversity changes for fish in a temperate tidal lagoon, as a response to changes in water temperature and depth DOI Creative Commons
Victor Odongo Otieno, Harald Asmus, Maarten Boersma

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 9, 2024

Abstract Coastal marine ecosystems are characterized by high productivity and biodiversity supporting coastal fisheries for centuries. These have undergone changes over the last few decades, experiencing shifts in seasonal patterns due to climate change. As a case study responses of cold temperate change, fish diversity Sylt-Rømø Bight (SRB), northern Wadden Sea; 54°58’40”N, 8°29’45”E, were analyzed using data from monthly monitoring 2007 2019. Results showed that correlated water temperature. The spatial distribution intertidal areas feeding refuge was depth. Rank abundance curves (RACs) species dominated community this changed per season habitat type. General Additive Models (GAMs) higher richness (S) at 5°C 15°C, which transition phases winter/spring summer/autumn, respectively. Evenness (J) Shannon-Wiener Index (H) decreased with increasing temperatures benthic pelagic habitats while dominance (D) increased. Generalized linear mixed-effects models (GLMMs) S J increased depth habitats. Similar observed nearshore contrary deep tidal channels. There no significant effects on H. reveal sensitivity oceanographic processes use Thus, significance shallow needs implementation conservation management measures.

Language: Английский

Citations

0
Autonomous data sampling for high-resolution spatiotemporal fish biomass estimates DOI Creative Commons
Astrid A. Carlsen, Michele Casini, Francesco Masnadi

et al.

Ecological Informatics, Journal Year: 2024, Volume and Issue: unknown, P. 102852 - 102852

Published: Oct. 1, 2024

Language: Английский

Citations

0