André S. Afonso
YOU?
Author Swipe
View article: Shark hotspot: Drivers for distribution and conservation in a tropical oceanic archipelago of the Atlantic Ocean
Shark hotspot: Drivers for distribution and conservation in a tropical oceanic archipelago of the Atlantic Ocean Open
View article: OBSERVATIONS ON SMALL-SCALE MOVEMENTS AND HABITAT USE OF LUTZ’S STINGRAY (Hypanus berthalutzae) OFF RECIFE, WITH METHOD TAIL TAG ATTACHMENT
OBSERVATIONS ON SMALL-SCALE MOVEMENTS AND HABITAT USE OF LUTZ’S STINGRAY (Hypanus berthalutzae) OFF RECIFE, WITH METHOD TAIL TAG ATTACHMENT Open
Acoustic telemetry is a commonly used method to collect presence and small-scale movement data from various aquatic organisms. Studies that aspire to identify the movement and habitat use of Lutz's stingray, Hypanus berthalutzae, are scarc…
View article: Global tracking of marine megafauna space use reveals how to achieve conservation targets
Global tracking of marine megafauna space use reveals how to achieve conservation targets Open
The recent Kunming-Montreal Global Biodiversity Framework (GBF) sets ambitious goals but no clear pathway for how zero loss of important biodiversity areas and halting human-induced extinction of threatened species will be achieved. We ass…
View article: Age and growth of the tiger shark, Galeocerdo cuvier (Péron & Lesueur, 1822) from the equatorial South Atlantic Ocean
Age and growth of the tiger shark, Galeocerdo cuvier (Péron & Lesueur, 1822) from the equatorial South Atlantic Ocean Open
Age and growth in the tiger shark, Galeocerdo cuvier , were estimated from vertebral analysis of specimens collected in Brazil. A total of 221 sharks (82 to 426.3 cm total length - L T ) were measured, and among these sharks, vertebrae wer…
View article: Humans influence shark behavior: Evidence from the COVID-19 lockdown
Humans influence shark behavior: Evidence from the COVID-19 lockdown Open
Achieving the UN SD Goals requires the conservation of keystone marine species. As top predators, many sharks play a crucial role in balancing marine ecosystems; yet, they have been experiencing severe population declines. Overfishing is i…
View article: Corrigendum to “The fate of plastic-wearing sharks: Entanglement of an iconic top predator in marine debris”
Corrigendum to “The fate of plastic-wearing sharks: Entanglement of an iconic top predator in marine debris” Open
View article: Interactive Machine Learning Solutions for Acoustic Monitoring of Animal Wildlife in Biosphere Reserves
Interactive Machine Learning Solutions for Acoustic Monitoring of Animal Wildlife in Biosphere Reserves Open
Biodiversity loss is taking place at accelerated rates globally, and a business-as-usual trajectory will lead to missing internationally established conservation goals. Biosphere reserves are sites designed to be of global significance in …
View article: The fate of plastic-wearing sharks: Entanglement of an iconic top predator in marine debris
The fate of plastic-wearing sharks: Entanglement of an iconic top predator in marine debris Open
Plastic waste is currently a major threat to marine ecosystems, and the ever-growing production of plastic materials suggests that this scenario will not change soon. Understanding cryptic effects of plastic debris on keystone marine speci…
View article: Female wound records suggest mating periods for the Caribbean reef shark at an insular marine protected area from the Equatorial Atlantic Ocean
Female wound records suggest mating periods for the Caribbean reef shark at an insular marine protected area from the Equatorial Atlantic Ocean Open
Despite being one of the most abundant, economically significant, reef‐associated shark species, little is known about the reproductive aspects of the Caribbean reef shark ( Carcharhinus perezi ). In the present study the authors report th…
View article: Diving into the vertical dimension of elasmobranch movement ecology
Diving into the vertical dimension of elasmobranch movement ecology Open
Knowledge of the three-dimensional movement patterns of elasmobranchs is vital to understand their ecological roles and exposure to anthropogenic pressures. To date, comparative studies among species at global scales have mostly focused on…
View article: Trophic-Mediated Pelagic Habitat Structuring and Partitioning by Sympatric Elasmobranchs
Trophic-Mediated Pelagic Habitat Structuring and Partitioning by Sympatric Elasmobranchs Open
Pelagic elasmobranchs are key elements of oceanic ecosystems and must be preserved if marine trophic networks are to be kept in balance. Yet, they face intense fishing pressure that has been threatening their populations worldwide. Ensurin…
View article: Diving into the vertical dimension of elasmobranch movement ecology
Diving into the vertical dimension of elasmobranch movement ecology Open
Knowledge of the three-dimensional movement patterns of elasmobranchs is vital to understanding their ecological roles and exposure to anthropogenic pressures. To date, comparative studies among species at global scales have mostly focused…
View article: Diving into the vertical dimension of elasmobranch movement ecology
Diving into the vertical dimension of elasmobranch movement ecology Open
Knowledge of the three-dimensional movement patterns of elasmobranchs is vital to understanding their ecological roles and exposure to anthropogenic pressures. To date, comparative studies among species at global scales have mostly focused…
View article: Reply to: Caution over the use of ecological big data for conservation
Reply to: Caution over the use of ecological big data for conservation Open
View article: Reply to: Shark mortality cannot be assessed by fishery overlap alone
Reply to: Shark mortality cannot be assessed by fishery overlap alone Open
View article: Does Lack of Knowledge Lead to Misperceptions? Disentangling the Factors Modulating Public Knowledge About and Perceptions Toward Sharks
Does Lack of Knowledge Lead to Misperceptions? Disentangling the Factors Modulating Public Knowledge About and Perceptions Toward Sharks Open
Identifying sources of variability in public perceptions and attitudes toward sharks can assist managers and conservationists with developing effective strategies to raise awareness and support for the conservation of threatened shark spec…
View article: Survivorship of species caught in a longline tuna fishery in the western equatorial Atlantic Ocean
Survivorship of species caught in a longline tuna fishery in the western equatorial Atlantic Ocean Open
Longlines bearing “hook timers” (HTs) and alternating circle (15/0 and 17/0) and “J” (10/0) hooks were employed off the coast of Brazil to measure differences in fishing mortality associated with hook type and on-ho…
View article: Global spatial risk assessment of sharks under the footprint of fisheries
Global spatial risk assessment of sharks under the footprint of fisheries Open
View article: Spatial ecology and conservation of the tiger shark, Galeocerdo cuvier, in the equatorial Atlantic Ocean
Spatial ecology and conservation of the tiger shark, Galeocerdo cuvier, in the equatorial Atlantic Ocean Open
Event Abstract Back to Event Spatial ecology and conservation of the tiger shark, Galeocerdo cuvier, in the equatorial Atlantic Ocean André S. Afonso1*, Fábio H. Hazin1 and Leonardo B. Veras2 1 Federal Rural University of Pernambuco, Depar…
View article: Bioecology and movements of bull sharks, Carcharhinus leucas , caught in a long-term longline survey off northeastern Brazil
Bioecology and movements of bull sharks, Carcharhinus leucas , caught in a long-term longline survey off northeastern Brazil Open
A robust understanding of habitat usage by coastal shark species, and how it overlaps with human presence in densely-populated regions is needed to inform the development of efficient conservation strategies for these important top predato…
View article: Tiger sharks can connect equatorial habitats and fisheries across the Atlantic Ocean basin
Tiger sharks can connect equatorial habitats and fisheries across the Atlantic Ocean basin Open
Increasing our knowledge about the spatial ecology of apex predators and their interactions with diverse habitats and fisheries is necessary for understanding the trophic mechanisms that underlie several aspects of marine ecosystem dynamic…
View article: Detecting Multispecific Patterns in the Catch Composition of a Fisheries-Independent Longline Survey
Detecting Multispecific Patterns in the Catch Composition of a Fisheries-Independent Longline Survey Open
Understanding the main factors that regulate species composition in fisheries is of utmost importance for developing efficient management strategies, particularly under the scope of ecosystem-based conservation approaches. This study used …
View article: Evasive mating behaviour by female nurse sharks, Ginglymostoma cirratum (Bonnaterre, 1788), in an equatorial insular breeding ground
Evasive mating behaviour by female nurse sharks, Ginglymostoma cirratum (Bonnaterre, 1788), in an equatorial insular breeding ground Open
Mating events and aggregations of vulnerable nurse sharks Ginglymostoma cirratum were recorded in the insular protected area of Fernando de Noronha (FEN), Brazil, between April and August 2015. Female sharks were observed clustering in gro…
View article: Polimelia Em Sapo-Boi (Rhinella paracnemis) : Relato De Caso
Polimelia Em Sapo-Boi (Rhinella paracnemis) : Relato De Caso Open
The frogs belong to the class of amphibians are important elements in the control of
\ninsects and other vertebrates acting as prey or predator. Due to various environmental
\nchanges, many man-made, there was an increase in critical defec…
View article: Vertical Movement Patterns and Ontogenetic Niche Expansion in the Tiger Shark, Galeocerdo cuvier
Vertical Movement Patterns and Ontogenetic Niche Expansion in the Tiger Shark, Galeocerdo cuvier Open
Sharks are top predators in many marine ecosystems and can impact community dynamics, yet many shark populations are undergoing severe declines primarily due to overfishing. Obtaining species-specific knowledge on shark spatial ecology is …