Impact of environmental conditions on fish early-life stages, an individual-based model approach

Ecological Modelling, Journal Year: 2025, Volume and Issue: 501, P. 111023 - 111023

Published: Jan. 24, 2025

Language: Английский

---

A risk-based approach to the analysis of potential climate change effects on fish communities associated to Posidonia oceanica in the Mediterranean.

Marine Environmental Research, Journal Year: 2024, Volume and Issue: 199, P. 106618 - 106618

Published: June 21, 2024

The Mediterranean is recognized as a climate change hotspot, with ongoing warming anticipated to impact its habitats and their associated fish fauna. Among these habitats, the seagrass Posidonia oceanica stands out foundational species, critical for stability of coastal communities. However, our understanding consequences on P. fauna date remains limited in part due lack long-term data. This study aimed highlight potential risks species Posidonia, integrating data species' thermal envelopes habitat depth preferences into risk index. Specifically, 9 including three pipefish several wrasse genus Symphodus, emerged being at higher from climatic change. A historical time series Palma Bay (Balearic Islands, Spain), spanning 45 years providing clear evidence warming, was employed evaluate trends abundance occurrence relation relative score. While certain high-risk like Symphodus cinereus Diplodus annularis showed an increase over time, others, such Syngnathus acus, typhle Nerophis maculatus experienced declines. absence observed declines some could be attributed factors, acclimation, adaptation, or unmet response thresholds. this does not rule future changes species. Factors increased nutrient influx growing human populations fishing regulations may also have contributed trends. These findings underscore intricate interplay environmental anthropogenic factors accentuate pressing need sustained, acquisition fathom implications highly important marine ecosystem.

Language: Английский

---

Early-life dispersal traits of coastal fishes: an extensive database combining observations and growth models

Earth system science data, Journal Year: 2024, Volume and Issue: 16(8), P. 3851 - 3871

Published: Aug. 28, 2024

Abstract. Early-life stages play a key role in the dynamics of bipartite life cycle marine fish populations. Difficult to monitor, observations these are often scattered space and time. While Mediterranean coastlines have been surveyed, no effort has made assemble historical observations. Here we build an exhaustive compilation dispersal traits for coastal species, considering situ growth models (Di Stefano et al., 2023; https://doi.org/10.17882/91148). Our database contains over 110 000 entries collected from 1993 2021 various subregions. All harmonized provide information on dates geolocations both spawning settlement, along with pelagic larval durations. When applicable, missing data associated confidence intervals reconstructed dynamic energy budget theory. Statistical analyses allow traits’ variability be revisited sampling biases revealed across taxa, time, hence providing recommendations future studies sampling. Comparison observed modelled provides suggestions improve feed into models. Overall, this extensive is crucial step investigate how populations respond global changes environmental gradients.

Language: Английский

---

Geographic variation in vulnerability to warming temperatures in an intertidal barnacle species

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: March 29, 2024

Abstract Vulnerability to warming temperatures under climate change arises when there is a gap between local and physiology. Intertidal species are unique because they face two distinct thermal environments, it unclear which the bigger driver of physiology vulnerability. Here we compare environments three populations intertidal barnacle Balanus glandula , spanning 1460 km its geographic range. We measured energy consumption in laboratory across 5-hour emersion subsequent 6-hour immersion at 7 different (10-38°C). compared these results one year temperature data from each location. Our suggest that experienced during population’s than those immersion. also estimated vulnerability future ways: as total annual demand number days above peak. These produced conflicting results. The central population spent most over peak, but northernmost had greatest costs year. higher energetic may be explained part by strong latitudinal gradient primary productivity selecting for latitude populations. Thus, accurate predictions B. ’s response will require knowledge both food availability.

Language: Английский

---

Realised Thermal Niches in Marine Ectotherms Are Shaped by Ontogeny and Trophic Interactions

Ecology Letters, Journal Year: 2024, Volume and Issue: 27(11)

Published: Nov. 1, 2024

ABSTRACT Understanding the response of marine organisms to temperature is crucial for predicting climate change impacts. Fundamental physiological thermal performance curves (TPCs), determined under controlled conditions, are commonly used project future species spatial distributions or performances. Yet, real‐world performances may deviate due extrinsic factors covarying with (food, oxygen, etc.). Using a bioenergetic ecosystem model, we evaluate differences between fundamental and realised TPCs fish contrasted ecology preferences. Food limitation primary cause differences, decreasing throughout ontogeny across trophic levels spatio‐temporal variability low‐trophic level prey availability temperature. Deoxygenation has moderate impact, despite increasing during ontogeny. This highlights lower sensitivity early life stages hypoxia, which mechanistically explained by mass‐specific ingestion at older stages. emergence niches offers insights better determine population's persistence warming.

Language: Английский

---

A Risk-Based Approach to the Analysis of Potential Climate Change Effects on Fish Communities Associated to Posidonia Oceanica in the Mediterranean

Published: Jan. 1, 2024

Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI

Language: Английский

---