Trends in Early Larval Traits of a Global Invader at Home Across a Latitudinal Gradient: The European Shore Crab Carcinus maenas DOI Creative Commons
Jan Phillipp Geißel, Noé Espinosa, Luis Giménez

et al.

Journal of Biogeography, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

ABSTRACT Aim This study sets out to understand the variability in larval traits of dispersive life stages a famous invader, European shore crab Carcinus maenas , its native distribution range. Location North East Atlantic coast from Norwegian Arctic southern limit C. Southern Spain. Taxon (Crustacea, Decapoda). Methods We quantified latitudinal patterns body mass, elemental composition (C and N content), thermal tolerance first stage. collected crabs four populations spanning 25° latitude (Vigo Northern Spain; Bergen, Trondheim, Bodø Norway) reanalysed published unpublished data mass additional Germany, Wales, France, Furthermore, we used two laboratory experiments test limits stage Vigo populations. In experiment, reared larvae hatching Zoea II at seven temperatures (9°C–27°C) LT 50 6°C. second exposed freshly hatched acutely increasing or decreasing (up 40°C down 3°C). Results Across entire range, found substantial increase dry carbon nitrogen content with latitude. exhibited higher survival 9°C than population. 6°C increased South North. All showed high range 12°C–24°C but low 27°C. Main Conclusions Larval by using is not clearly related acute experiments, indicating that each method assesses different aspects tolerance. Tolerance temperature correlated positively temperature, suggesting variation among females responses reflects general physiological quality rather trade‐offs. provide evidence for potentially adaptive variations across gradient .

Language: Английский

Cold Spells, Fresh Waves, and the Biogeochemical Response in the North Atlantic Cold Anomaly Region DOI Creative Commons
Fatma Jebri, Zoe Jacobs, Meric Srokosz

et al.

Journal of Geophysical Research Oceans, Journal Year: 2025, Volume and Issue: 130(4)

Published: April 1, 2025

Abstract Regional effects of marine cold spells (MCS, periods anomalous cooling), their impact on ecosystem biogeochemistry, and link to salinity extremes remain underexplored. A case in point is North Atlantic's Cold Anomaly (CA) region (known as the “cold blob”), which hits record low temperatures during 2014–16 while most global ocean warmed. Using up 42 years observations, we characterize CA a manifestation both MCS Fresh Waves (FW, extremes) analyze surface biogeochemical response. We observe quasiperiodic pattern from 1980s FW (at least) 1990s early 2020s with alternations cool freshwater warm saline conditions. Since 1990s, appears be potentially undergoing compound events that are more frequent prolonged but less intense than other Atlantic areas. The 2014‐16 was among widespread associated deeper mixed layer distinct signature, including elevated nutrients oxygen, an overall increased chlorophyll‐a intensified acidification. These results suggest could mitigate certain climate change through cooling enhanced productivity, exacerbating others such compare those Pacific's blob, identifying contrasting behaviors physical processes impacts discussing common atmospheric driver. Our findings emphasize need further study ecological responses Atlantic.

Language: Английский

Citations

0
Eddy-induced modulation of marine heatwaves and cold spells in a tropical region: a case study in the natuna sea area DOI
Gandhi Napitupulu

Ocean Dynamics, Journal Year: 2025, Volume and Issue: 75(3)

Published: March 1, 2025

Language: Английский

Citations

0
Trends in Early Larval Traits of a Global Invader at Home Across a Latitudinal Gradient: The European Shore Crab Carcinus maenas DOI Creative Commons
Jan Phillipp Geißel, Noé Espinosa, Luis Giménez

et al.

Journal of Biogeography, Journal Year: 2025, Volume and Issue: unknown

Published: April 18, 2025

ABSTRACT Aim This study sets out to understand the variability in larval traits of dispersive life stages a famous invader, European shore crab Carcinus maenas , its native distribution range. Location North East Atlantic coast from Norwegian Arctic southern limit C. Southern Spain. Taxon (Crustacea, Decapoda). Methods We quantified latitudinal patterns body mass, elemental composition (C and N content), thermal tolerance first stage. collected crabs four populations spanning 25° latitude (Vigo Northern Spain; Bergen, Trondheim, Bodø Norway) reanalysed published unpublished data mass additional Germany, Wales, France, Furthermore, we used two laboratory experiments test limits stage Vigo populations. In experiment, reared larvae hatching Zoea II at seven temperatures (9°C–27°C) LT 50 6°C. second exposed freshly hatched acutely increasing or decreasing (up 40°C down 3°C). Results Across entire range, found substantial increase dry carbon nitrogen content with latitude. exhibited higher survival 9°C than population. 6°C increased South North. All showed high range 12°C–24°C but low 27°C. Main Conclusions Larval by using is not clearly related acute experiments, indicating that each method assesses different aspects tolerance. Tolerance temperature correlated positively temperature, suggesting variation among females responses reflects general physiological quality rather trade‐offs. provide evidence for potentially adaptive variations across gradient .

Language: Английский

Citations

0