The potential impacts of exploitation on the ecological roles of fish species targeted by fisheries: A multifunctional perspective DOI Creative Commons
Eudriano F. S. Costa, Gui M. Menezes, Ana Colaço

et al.

PLoS ONE, Journal Year: 2024, Volume and Issue: 19(10), P. e0308602 - e0308602

Published: Oct. 29, 2024

Examining ecosystem functioning through the lens of trait diversity serves as a valuable proxy. It offers crucial insights into how exploitation affects specific ecological roles played by fisheries targeted species. The present study investigates potential impacts on fish species an examination diversity. focuses landed local and coastal fleets in Azores archipelago over past four decades. Fourteen functional traits were merged to data assemblages both fishing from 1980 2020. These corresponded fundamental functions: habitat use, locomotion, feeding life history. Variability metrics (i.e., richness- FRic, evenness- FEve, divergence-FDiv, dispersion- FDis) among fleets, functions across decades was assessed using null models. results revealed similar between with overall remaining relatively stable time. However, fishery activities wide range traits. Additionally, seasonal availability increased catches certain can significantly alter their associated functions. findings highlight importance addressing roles, which is for long-term sustainability.

Language: Английский

Fisheries bycatch threatens sessile communities of the Great Amazon Reef System DOI

Adilson Sousa da Silva,

Alexandre Pires Marceniuk, GEORGE GARCIA SANTOS

et al.

Estuarine Coastal and Shelf Science, Journal Year: 2025, Volume and Issue: unknown, P. 109256 - 109256

Published: March 1, 2025

Language: Английский

Citations

0
The effectiveness of marine protected areas on the spatio-temporal patterns of reef fish in the Southwest Atlantic DOI Creative Commons
Amanda Aparecida Carminatto, Paulo Emílio Costa Santos, Rodrigo de Oliveira Campos

et al.

Royal Society Open Science, Journal Year: 2025, Volume and Issue: 12(4)

Published: April 1, 2025

This study explored spatio-temporal patterns influencing reef fish richness and abundance in two coastal islands within marine protected areas (MPAs) southeastern Brazil. Data were collected using a remotely operated vehicle (ROV) during the 2022 seasonal cycle, with samples taken day night. A total of 16 661 individuals from 81 species was recorded. The results showed that higher day, winter high temperatures. At night, autumn, behavioural changes observed schooling species. Seasonal variations, including temperature oceanographic characteristics area, influenced composition, favouring tropical subtropical Depth affected differently: deeper waters at Anchieta Island State Park, while shallower Mar Virado greater due to habitat complexity. Diurnal variation significant Island, probably increased nocturnal predation. For fishing-targeted species, effects on composition abundance, highlighting importance areas. offers key insights into dynamics, emphasizing role variables shaping communities supporting conservation strategies MPAs.

Language: Английский

Citations

0
High dominance renders reef fish trophic interactions vulnerable to human pressures in oceanic islands DOI Creative Commons

Iris Barroso,

Mar Mourín,

Sandra Navarro‐Mayoral

et al.

Estuarine Coastal and Shelf Science, Journal Year: 2025, Volume and Issue: unknown, P. 109305 - 109305

Published: April 1, 2025

Language: Английский

Citations

0
Fisherwomen’s activities are as complex, salient, and profitable as those performed by fishermen: A study from vulnerable traditional fishery communities DOI
José Amorim Reis‐Filho, Letícia Maria Cavole, Vítor Renck

et al.

Fisheries Research, Journal Year: 2025, Volume and Issue: 286, P. 107380 - 107380

Published: May 3, 2025

Language: Английский

Citations

0
Rhodolith Beds in Brazil—A Natural Heritage in Need of Conservation DOI
Nadine Schubert, Rafael A. Magris,

Flávio Augusto de Souza Berchez

et al.

Diversity and Distributions, Journal Year: 2024, Volume and Issue: 31(1)

Published: Dec. 26, 2024

ABSTRACT Aim Brazil harbours the largest known extent of rhodolith beds (RBs) in world, a habitat whose ecological and economic importance have been widely overlooked. This creates dire situation that is likely to worsen with rapidly expanding human activities, considering less than 5% Brazil's ocean area fully protected. We assessed Brazilian RBs for supporting biodiversity, at country‐wide level, identified multi‐criteria hotspots that, face lack protection presence anthropogenic threats, could safeguard conservation seascapes across Southwestern Atlantic waters. Location Ocean. Methods performed systematic review studies on retrieve information regarding their spatial distribution associated biodiversity. Multi‐criteria were based areas where high species diversity co‐occurs endemic, threatened commercially important species. Furthermore, we how well are covered by marine protected (MPAs), as overlap multiple threats. Results Existing records indicate > 1000 different species, mostly fish algae, including significant numbers Most either unprotected or only partially protected, majority biodiversity our analysis. Among main potential threats RBs, bottom trawling ranks highest, while expansion seabed mining oil gas activities may sharply increase risk cumulative impacts near future. Main Conclusions Our large‐scale quantitative assessment confirms role hotspots. be leveraged help meet twin goals RB conservation, through establishment highly‐protected MPAs hotspot areas, sustainable use an ecosystem‐based approach accounts vulnerabilities

Language: Английский

Citations

2
Coping with collapse: Functional robustness of coral‐reef fish network to simulated cascade extinction DOI
André Luís Luza, Mariana G. Bender, Carlos E. L. Ferreira

et al.

Global Change Biology, Journal Year: 2024, Volume and Issue: 30(9)

Published: Sept. 1, 2024

Human activities and climate change have accelerated species losses degradation of ecosystems to unprecedented levels. Both theoretical empirical evidence suggest that extinction cascades contribute substantially global loss. The effects can ripple across levels ecological organization, causing not only the secondary loss taxonomic diversity but also functional erosion. Here, we take a step forward in coextinction analysis by estimating robustness reef fish communities We built tripartite network with nodes links based on model output predicting occupancy (113 species) as function coral turf algae cover Southwestern Atlantic reefs. This comprised species, coral-associated (site directly related cover), co-occurring (occupancy indirectly cover). used attack-tolerance curves estimated (R) quantify cascading along three scenarios loss: degree centrality (removing first corals more fish), bleaching vulnerability post-bleaching mortality (most vulnerable removed first), random removal. Degree produced greatest (lowest R) comparison other scenarios. In this scenario, while was robust direct (R = 0.85), 0.54). showed low indirect extinctions 0.31 R 0.57, respectively). Projections 100% caused reduction 69% regional trait space area. reefs went beyond coral-fish relationships. Ever-growing human impacts cause detrimental consequences for assemblages benefit from corals.

Language: Английский

Citations

1
Climate Change and Local Impacts Threaten Brazilian Coral Reefs DOI
Marcelo de Oliveira Soares, Eliana Dias Matos, Beatriz Diniz

et al.

Brazilian marine biodiversity, Journal Year: 2024, Volume and Issue: unknown, P. 249 - 279

Published: Jan. 1, 2024

Language: Английский

Citations

1
An Analysis of the Predatory Fishing Conflict During the Piracema Period Through the Graph Model DOI
Raí dos Santos Mota, Maísa Mendonça Silva, Leandro Chaves Rêgo

et al.

Lecture notes in business information processing, Journal Year: 2024, Volume and Issue: unknown, P. 3 - 14

Published: Jan. 1, 2024

Language: Английский

Citations

0
Navigating blue justice: Policy gaps and conflicts in coastal development from small-scale fisher perspectives DOI
José Amorim Reis‐Filho, Vanessa Hatje, Francisco Barros

et al.

One Earth, Journal Year: 2024, Volume and Issue: 7(10), P. 1786 - 1802

Published: Aug. 12, 2024

Language: Английский

Citations

0
When the Light Goes Out: Distribution and Sleeping Habitat Use of Parrotfishes at Night DOI Creative Commons
Marcos B. Lucena, Thiago Costa Mendes, César A. M. M. Cordeiro

et al.

Fishes, Journal Year: 2024, Volume and Issue: 9(10), P. 370 - 370

Published: Sept. 24, 2024

Understanding the diurnal and nocturnal activity of organisms is a key topic in behavioral ecology, with implications for population structure management strategies. In reef systems, parrotfishes play crucial roles as nominal herbivores, but overfishing has led to collapses detrimental effects on functions. Parrotfish are good models study diel rhythms, they often easily observed while sleeping at night. We assessed distribution, substrate selectivity areas during night subtropical rocky Southwestern Atlantic. performed replicated visual censuses (50 × 2 m) different depths estimate parrotfish abundance, quantifying structural complexity sites. Among seven recorded species, we focused four most abundant determine their habitat selectivity. Active telemetry was used two species define site hotspots. All exhibited preference sediment substrate, avoiding zoanthids. Species distribution influenced by depth, Scarus zelindae predominantly high-complexity intermediate Sparisoma tuiupiranga rock–sand interface deeper depths. Tagged axillare frondosum similar terms size geographical locations; showing high fidelity, returned same sites over consecutive nights. These results represent first assessment use This information guiding actions, particularly planning no-take zones fishing control recovery.

Language: Английский

Citations

0