Results 21 to 30 of about 8,766 (205)

Lessons from a Rubik's Cube to solve the biodiversity crisis. [PDF]

open access: yesConserv Biol
Abstract Global biodiversity is facing unprecedented pressures, calling into question the effectiveness of existing governance systems aimed at halting extinctions. Renewed hope arose with the recent Conference of the Parties (COP) to the Convention on Biological Diversity (COP15 December 2022) and the Convention on International Trade in Endangered ...
Sequeira AMM, Techera EJE.
europepmc   +2 more sources

Una visión crítica de las revistas depredadoras y fraudulentas: hay que distinguir entre tiburones y peces pequeños

open access: yesPalabra Clave (La Plata), 2023
El presente ensayo discute la cuestión de las políticas editoriales científicas y distingue tres tipos de revistas: las editoriales grandes o gigantes comerciales que representan a los tiburones o depredadores de la ciencia y sus operadores o ...
Carlos KusanoBucalen Ferrari
semanticscholar   +1 more source

Análisis morfológico de troncos y aletas de cinco especies comerciales de tiburones desembarcados en el litoral peruano

open access: yesRevista de biologia marina y oceanografia, 2022
La identificación rápida de troncos y aletas que llegan a puertos pesqueros, constituye uno de los retos para la conservación de los elasmobranquios.
Mónica Vitor-Caceres   +2 more
semanticscholar   +1 more source

Evaluation of staining techniques for the observation of growth bands in tropical elasmobranch vertebrae

open access: yesScientia Marina, 2020
The aim of this study was to assess the suitability of different vertebrae staining techniques for the visualization and counting of growth bands in tropical species of batoids (Narcine leoparda, Urotrygon aspidura, Hypanus longus, Potamotrygon ...
José G. Pérez-Rojas   +4 more
doaj   +1 more source

Comunidades de parásitos de dos tiburones, Etmopterus granulosus (Squaliformes) y Schroederichthys bivius (Carcharhiniformes), del sur de Chile

open access: yesAnales del Instituto de la Patagonia, 2021
En la presente investigación se analizó la comunidad de parásitos de dos especies de tiburones del sur de Chile debido al escaso conocimiento de la relación entre parásitos y tiburones de la zona.
Muñoz Gabriela   +2 more
semanticscholar   +1 more source

Errata a Fauna de tiburones y rayas de la Formación Tirabuzón (Plioceno) en el Cañón El Álamo, sierras de La Reforma – El Aguajito, Baja California Sur, México [Rev. Mex. Cienc. Geol., 37-1 (2020), 40-63]

open access: yesRevista Mexicana de Ciencias Geológicas, 2021
En el artículo indicado arriba se omitieron de modo no intencionado las Tablas 1 y 2. Estas tablas se reproducen continuación y han sido anexadas al artículo original. Los editores lamentan la omisión.
R. M. Lira-Beltrán   +6 more
semanticscholar   +1 more source

Evaluando los niveles tróficos de dos tiburones oceánicos del Océano Pacífico suroriental [PDF]

open access: yes, 2016
Indexación: Web of ScienceStable isotope analyses for shortfin mako (Isurus oxyrinchus) and blue sharks (Prionace glauca) were conducted to assess their trophic position in two periods of time (before 1980 and after 2000) in the Southeastern Pacific ...
Barria, P   +4 more
core   +1 more source

At-vessel fishing mortality for six species of sharks caught in the northwest Atlantic and Gulf of Mexico [PDF]

open access: yes, 2007
From 1994-2005 the Commercial Shark Fishery Observer Program (CSFOP) placed fishery observers aboard US bottom longline vessels engaged in directed fishing for sharks in the region from New Jersey to Louisiana, USA.
Burgess, George H., Morgan, Alexia
core   +2 more sources

An illicit artisanal fishery for North Pacific white sharks indicates frequent occurrence and high mortality in the Gulf of California

open access: yesConservation Letters, Volume 14, Issue 4, July/August 2021., 2021
Abstract Large sharks shape ecosystems across their geographic ranges and have become a top research and conservation priority. Eastern North Pacific (ENP) white shark (Carcharodon carcharias) aggregations off the United States and Mexico are well described, but their population status is currently uncertain.
Daniel J. Madigan   +3 more
wiley   +1 more source

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