BRUVS reveal locally extinct shark and the way for shark monitoring in Brazilian oceanic islands.

J Fish Biol

Universidade Federal do Pará (UFPA), Núcleo de Ecologia Aquática e Pesca da Amazônia, Aquatic Ecology Group's Lab, Belém, Brazil.

Published: February 2020


Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

Here we present records of sharks obtained using baited remote underwater stereo-video systems (stereo-BRUVS) at two Brazilian oceanic islands. Fourteen of the 60 deployments recorded 19 sharks in Trindade Island. In Saint Peter and Saint Paul Archipelago (SPSPA), two pelagic and two demersal deployments recorded two and one shark, respectively, including the locally extinct Galapagos shark Carcharhinus galapagensis. Stereo-BRUVS should be considered as adjuncts to other non-invasive methods to monitor shark populations.

Download full-text PDF

Source
http://dx.doi.org/10.1111/jfb.14228DOI Listing

Publication Analysis

Top Keywords

locally extinct
8
brazilian oceanic
8
oceanic islands
8
deployments recorded
8
shark
5
bruvs reveal
4
reveal locally
4
extinct shark
4
shark shark
4
shark monitoring
4

Similar Publications

Decreasing funding for nonhuman animal research decreases the opportunity for students and researchers to explore the behavior of many species in many contexts. In the long run, this will reduce variability within the experimental analysis of behavior around what species are being researched and what questions are being asked. New technologies, however, offer students and researchers the opportunity to observe the behavior of organisms in everyday environments in cost-effective ways.

View Article and Find Full Text PDF

Bidens macroptera symbolizes the change of a season, marking the transition from the rainy season to autumn, heralding the new year for Ethiopians. Despite a general understanding of its geographic regions, significant gaps remain in identifying the habitat distribution and key predictor variables of Bidens macroptera through species distribution modeling (SDM) in the context of climate change. We developed an ensemble species distribution model using 2 statistical and 3 machine learning algorithms.

View Article and Find Full Text PDF

Recent extinctions of plant and animal genera are rare, localized, and decelerated.

PLoS Biol

September 2025

Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, Massachusetts, United States of America.

An important aspect of the current extinction crisis is the loss of distinct clades (e.g., genera).

View Article and Find Full Text PDF

Giving their all for their offspring: physiological trade-offs in an Andean-Patagonian viviparous lizard in response to global warming.

Biol Open

September 2025

Laboratorio de Ecofisología e Historia de vida de Reptiles, Instituto de Investigaciones en Biodiversidad y Medio Ambiente (INIBIOMA), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Centro Regional Universitario Bariloche, Universidad Nacional del Comahue, 8400 San Carlos

Global warming threatens biodiversity, particularly affecting ectothermic animals, which must seek refuge to avoid overheating when ambient temperatures exceed their critical thresholds. Extended shelter use limits the time for essential activities such as foraging, social interactions, and reproduction, potentially reducing survival and increasing local extinction risk. Viviparous Liolaemids inhabiting cold-temperate Andean regions are considered vulnerable to rising temperatures and are predicted to experience local extinctions this century.

View Article and Find Full Text PDF

Local Adaptation Drives Leaf Thermoregulation in Tropical Rainforest Trees.

Glob Chang Biol

September 2025

College of Science and Engineering and Centre for Tropical Environmental and Sustainability Science, James Cook University, Cairns, Queensland, Australia.

Tropical forests play a critical role in biodiversity, carbon sequestration, and climate regulation, but are increasingly affected by heatwaves and droughts. Vulnerability to warming may vary within and between species because of phenotypic divergence. Leaf trait variation can affect leaf operating temperatures-a phenomenon termed 'limited homeothermy' when it helps avoid heat damage in warmer conditions.

View Article and Find Full Text PDF