eDNA Metabarcoding Reveals the Depth-Structured Variation of Coral Reef Fish DOI Creative Commons

Jinfa Zhao,

Lin Lin, Yong Liu

et al.

Fishes, Journal Year: 2025, Volume and Issue: 10(5), P. 209 - 209

Published: May 2, 2025

Global coral reef ecosystems face various levels of disturbance pressure. Understanding the depth-structured variation in fish communities can help us to better grasp and predict adaptive changes ecosystem under different stressors. This study applied eDNA metabarcoding technology analyze spatial distribution at depths (0 m, 5 10 15 20 30 40 50 60 m) within Xisha Islands China. The results indicated that detected a total 213 amplicon sequence variants (ASVs), including 33 species were not identified using traditional methods. Herbivorous generally dominated relative abundance across depths. Moreover, similarity among depth groups was largely absent, significant differences existed assemblages gradients, consistent with unique preferences microhabitats. Importantly, our findings revealed distinct functional fish. Large carnivorous initially increased then decreased along gradient from 0 turning point around while large herbivorous displayed opposite trend. Small small consistently declined same gradient. Additionally, Margalef index (D) Function richness (FRic) both downward trend increasing depth, Shannon–Wiener (H′), Pielou (J′), Quadratic entropy (RaoQ), Functional dispersion (FDis), evenness (FEve) decreased, peaking m. is an effective tool for evaluating biodiversity, community composition, distribution. It enhances understanding dynamics offers valuable insights conservation restoration efforts.

Language: Английский

Main typologies of marine fish communities DOI
Henrique N. Cabral

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 295 - 322

Published: Jan. 1, 2025

Language: Английский

Citations

0
eDNA Metabarcoding Reveals the Depth-Structured Variation of Coral Reef Fish DOI Creative Commons

Jinfa Zhao,

Lin Lin, Yong Liu

et al.

Fishes, Journal Year: 2025, Volume and Issue: 10(5), P. 209 - 209

Published: May 2, 2025

Global coral reef ecosystems face various levels of disturbance pressure. Understanding the depth-structured variation in fish communities can help us to better grasp and predict adaptive changes ecosystem under different stressors. This study applied eDNA metabarcoding technology analyze spatial distribution at depths (0 m, 5 10 15 20 30 40 50 60 m) within Xisha Islands China. The results indicated that detected a total 213 amplicon sequence variants (ASVs), including 33 species were not identified using traditional methods. Herbivorous generally dominated relative abundance across depths. Moreover, similarity among depth groups was largely absent, significant differences existed assemblages gradients, consistent with unique preferences microhabitats. Importantly, our findings revealed distinct functional fish. Large carnivorous initially increased then decreased along gradient from 0 turning point around while large herbivorous displayed opposite trend. Small small consistently declined same gradient. Additionally, Margalef index (D) Function richness (FRic) both downward trend increasing depth, Shannon–Wiener (H′), Pielou (J′), Quadratic entropy (RaoQ), Functional dispersion (FDis), evenness (FEve) decreased, peaking m. is an effective tool for evaluating biodiversity, community composition, distribution. It enhances understanding dynamics offers valuable insights conservation restoration efforts.

Language: Английский

Citations

0