PulseExploreJournal ClubDebatesTrendingResearchersJournals
Instagram
HomeExploreJournal ClubTrending
Synapse
⌘+K
Synapse
February 26, 2026Environmental Pollution0 citationsOpen Access

Stage-dependent trace metal bioaccumulation in Scomber colias across the ontogenetic transition

View Full Paper
ELEnrique Lozano-BilbaoJLJosé M. LorenzoJGJosé A. González

Key Points

  • The aim is to quantify trace metal bioaccumulation in Scomber colias during habitat transitions from pelagic to benthic stages.
  • Classified 201 individuals as young (<28 cm TL) or mature (≥28 cm TL)
  • Applied segmented regressions and multivariate analyses
  • Utilized a Potential Ecological Risk Index to assess metal concentration risks
  • Monitored muscle concentrations of aluminium, cadmium, copper, iron, lead, and zinc
  • Mature adults had significantly higher concentrations of Cd, Pb, Fe, and Zn compared to young adults
  • Metal concentrations increased with the size of the fish, indicating a correlation between growth and bioaccumulation
  • Breakpoints identified between size 22.4 cm and 35.6 cm TL suggest a tipping point around 28 cm TL for habitat transition
  • Segmented models demonstrated a strong non-linear relationship (R2 > 0.94) between size and metal concentrations

Abstract

Habitat transitions linked to ontogeny can markedly alter contaminant exposure in marine fishes, yet their effects on trace-metal bioaccumulation remain poorly quantified. This study examines how the shift from pelagic to benthic habitats shapes muscle concentrations of aluminium (Al), cadmium (Cd), copper (Cu), iron (Fe), lead (Pb) and zinc (Zn) in the Atlantic chub mackerel Scomber colias, a key commercial species in the NE Atlantic. A total of 201 individuals from artisanal fisheries in the Canary Islands were classified as young ( 0.94) • Metal ratios (Cu/Zn, Cd/Pb) indicate stage-specific exposure.

Ask AI
Helpful
Bookmark
Share
View Full Paper

Cite This Study

Lozano-Bilbao et al. (2026) studied this question.

synapsesocial.com/papers/699fe37b95ddcd3a253e7591https://doi.org/10.1016/j.envpol.2026.127880
Ask AI
Helpful
Bookmark
Share
View Full Paper

Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Heavy metal (As, Cd, Hg, Pb, Cu, Zn, Se) concentrations in muscle and bone of four commercial fish caught in the central Adriatic Sea, Italy2013 · 109 citations
  2. 2Spatial patterns in reproductive traits of the temperate parrotfish Sparisoma cretense2007 · 35 citations
  3. 3Changes in the abundance and spatial distribution of the Atlantic chub mackerel (Scomber colias) in the pelagic ecosystem and fisheries off Portugal2013 · 52 citations
  4. 4Length–weight relationship, age, growth and mortality of Atlantic chub mackerel Scomber colias in the Adriatic Sea2012 · 12 citations
  5. 5Ectoparasites as developmental stressors: Effects on somatic and physiological development2017 · 12 citations