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Effects of protection on large-bodied reef fishes in the western Indian Ocean.
Conserv Biol
January 2025
UMR ENTROPIE (IRD, UR, CNRS, IFREMER, UNC), CS 41096, La Reunion, France.
Predatory and large-bodied coral reef fishes have fundamental roles in the functioning and biodiversity of coral reef ecosystems, but their populations are declining, largely due to overexploitation in fisheries. These fishes include sharks, groupers, Humphead wrasse (Cheilinus undulatus), and Green Humphead parrotfish (Bolbometopon muricatum). In the western Indian Ocean, this situation is exacerbated by limited population data on these fishes, including from conventional visual census methods, which limit the surface area surveyed.
View Article and Find Full Text PDFDiscovery of a potential open ocean nursery for the endangered shortfin mako shark in a global fishing hotspot.
Sci Rep
January 2025
Centro de Investigação em Biodiversidade e Recursos Genéticos, CIBIO-InBIO, Universidade do Porto, Campus Agrário de Vairão, r/ Padre Armando Quintas, Vairão, 4485-661, Portugal.
Populations of large pelagic sharks are declining worldwide due to overfishing. Determining the overlap between shark populations and fishing activities is important to inform conservation measures. However, for many threatened sharks the whereabouts of particularly vulnerable life-history stages - such as pregnant females and juveniles - are poorly known.
View Article and Find Full Text PDFComparing quantity of marine debris to California horn shark sightings and egg appearances in Redondo Beach, California, USA.
Mar Pollut Bull
January 2025
California State University, Los Angeles, 5151 State University Drive ST 305, Los Angeles, CA 90032, USA. Electronic address:
Marine debris such as plastic, metal, and rubber, is a significant source of anthropogenic waste pollution in oceanic waters. Debris continues to be found along Southern California's coastlines and poses serious risks to biodiversity and ecosystem health through entrapment, ingestion, and entanglement. One particular species that drops eggs in the South Bay, particularly in the Palos Verdes peninsula, is the California horn shark (Heterodontus francisci).
View Article and Find Full Text PDFSurvey data on public awareness on the value of marine biodiversity conservation in the Strait of Sicily (Central Mediterranean Sea).
Data Brief
December 2024
Institute for Marine Biological Resources and Biotechnology (IRBIM), National Research Council (CNR), Via L. Vaccara 61, 91026, Mazara del Vallo, Italy.
The Strait of Sicily (SoS) is a region of key ecological importance because of its peculiar oceanographic conditions, high biodiversity, and critical role as a transition area between the western and eastern basins of the Mediterranean Sea. The SoS was designated as an Ecologically or Biologically Significant Area (EBSA) by the Contracting Parties of the Convention on Biological Diversity in 2014 [1] and acknowledged as an Important Shark and Ray Area (ISRA) in 2023 [2]. Ongoing research and conservation efforts are essential to protect this vital marine corridor from increasing anthropogenic pressures.
View Article and Find Full Text PDFMitochondrial Genome and Phylogenetic Analysis of the Narrownose Smooth-Hound Shark Springer, 1939.
Animals (Basel)
November 2024
Instituto de Biotecnologia/Programa de Pós-Graduação em Biotecnologia (PPGBIO), Universidade de Caxias do Sul (UCS), Caxias do Sul 95070-560, RS, Brazil.
Southern Brazil is home to a large biodiversity of elasmobranchs from the Brazilian coast. Several genera and species of small sharks of the Triakidae family live in this marine environment. Studies on these shark species are scarce, with few genetic data and little information on animal population structures.
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