Results 11 to 20 of about 363 (130)

Parámetros hemocitarios y química de la hemolinfa en reproductores de la concha prieta Anadara tuberculosa (Arcoida: Arcidae)

open access: yesRevista Peruana de Biología, 2022
Con motivo de conocer el estado de salud de poblaciones silvestres de la concha prieta Anadara tuberculosa se estudiaron los parámetros hemocitarios (viabilidad, conteo total y diferencial, estabilidad lisosomal, fragilidad osmótica) y la química ...
Karen Espinoza   +2 more
doaj   +1 more source

RENDIMIENTO REPRODUCTIVO Y CALIDAD ESPERMÁTICA EN LANGOSTINOS BLANCOS DEL SUR SILVESTRES Y CRIADOS EN ESTANQUES Litopenaeus schmitti MACHOS ADULTOS DURANTE CONTINUO ACTIVIDAD REPRODUCTIVA

open access: yesRevista de Investigaciones Marinas, 2023
El camarón blanco Litopenaeus schmitti criado en ciclo cerrado era comúnmente usado para la producción de nauplios en Cuba. En el presente estudio fue comparado el desempeño reproductivo y la calidad espermática entre machos de cultivo y silvestres a lo
Lourdes Pérez-Jar   +3 more
doaj  

ESTADO Y ALTERACIONES DEL APARATO REPRODUCTOR DE VACAS SACRIFICADAS EN EL RASTRO DE UMÁN, YUCATÁN

open access: yesEcosistemas y Recursos Agropecuarios, 2014
Los objetivos de este estudio fueron determinar el estado reproductivo de 196 vacas sacrificadas en un rastro, describir las características de las vacas gestantes y estimar la frecuencia de alteraciones del tracto reproductor bovino.
JA Erales-Villamil   +3 more
doaj   +1 more source

Variaciones estacionales en el desempeño reproductivo y larvario de la concha nácar Pteria sterna asociadas con condiciones ambientales anómalas

open access: yesCiencias Marinas, 2023
Se estudió el desempeño reproductivo y larvario de Pteria sterna en relación a factores ambientales anómalos, hipotetizando que la transición entre los eventos de La Niña y El Niño 2008-2009 afectó los periodos “normales” para recolectar reproductores ...
Eliana Gómez-Robles   +3 more
doaj   +1 more source

Aclimatación en cautiverio del sargo Archosargus probatocephalus (Perciformes: Sparidae)

open access: yesEcosistemas y Recursos Agropecuarios, 2018
RESUMEN El sargo (Archosargus probatocephalus) es considerada especie prioritaria para el desarrollo de la maricultura en el sureste mexicano. El objetivo del estudio fue reproducir en cautiverio dos lotes de sargos, uno en cautiverio por 12 meses y ...
María de la Luz Merino Contreras
doaj   +1 more source

Genomics‐informed management of ex situ populations

open access: yesConservation Biology, EarlyView.
Abstract The European Association of Zoos and Aquariums (EAZA) manages insurance populations for hundreds of species through its EAZA ex situ programs (EEPs). EEPs help safeguard against extinction in the wild and provide source populations for genetic rescue programs.
Cock van Oosterhout   +8 more
wiley   +1 more source

Overlap of nonbreeding wandering albatrosses with fisheries and implications for colony‐specific population trajectories at South Georgia

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
Abstract Bycatch in fisheries is one of the most serious threats to pelagic seabirds, causing major population declines. Mitigation measures can reduce bycatch substantially, but many fisheries fail to apply best practices, and seabird mortality remains high.
V. Warwick‐Evans   +2 more
wiley   +1 more source

Assessing differences among elasmobranch nurseries to aid conservation based on a genomics framework

open access: yesConservation Biology, Volume 40, Issue 4, August 2026.
Abstract Elasmobranch nurseries often differ in environmental conditions, demographics, and use patterns. These differences affect the distribution of genetic variation among nurseries. However, conservation and management strategies often fail to account for such differences because they are difficult to characterize.
Dominic G. Swift   +8 more
wiley   +1 more source

Coping with change: Interactive effects of anthropogenic change influence the breeding success and survival of a desert‐dwelling cooperative breeder

open access: yesFunctional Ecology, Volume 40, Issue 7, Page 2038-2052, July 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Habitat modification and climate change are major threats to biodiversity. Using 38 years of data (1985–2023), we examined their combined influence on a desert‐dwelling cooperative breeder's reproductive success and projected the likely magnitude of future effects of ...
Alejandro Alaman   +4 more
wiley   +1 more source

Effects of landscape context on avian specialist response to increased surface temperature in protected areas

open access: yesConservation Biology, Volume 40, Issue 3, June 2026.
Abstract Human development is a driver of global change and a major threat to biodiversity. Protected areas maintain and support biodiversity, but outside stressors, such as climate change and land use change, can negatively influence natural resources within protected areas.
Leah J. Rudge   +2 more
wiley   +1 more source

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