River sharks (genus Glyphis)
River sharks are true freshwater sharks, unlike bull sharks which are euryhaline; the two may be confused in freshwater settings.
Foto deGerald Schömbs
Guía de especie
Qué saber sobre bull sharks
Una guía de campo clara centrada en hábitat, identificación, comportamiento y conservación sin enterrar lo útil.
The bull shark (Carcharhinus leucas) is a requiem shark commonly found worldwide in warm, shallow waters along coasts, in estuaries and in rivers. It is euryhaline and can thrive in both salt and fresh water, and individuals have been recorded traveling far upriver — for example, up the Mississippi River as far as Alton, Illinois, about 1,100 kilometres from the ocean. Bull sharks are known for their aggressive nature; larger individuals are responsible for a large part of nearshore shark attacks and may account for many attacks involving unidentified species. Unlike river sharks of the genus Glyphis, bull sharks are not true freshwater sharks despite their ability to survive in freshwater habitats. Bull sharks are listed as vulnerable on the IUCN Red List. Ongoing shark-culling efforts near beaches to protect beachgoers are among the causes contributing to continuing population declines. The species also appears on the 2000 colones banknote from Costa Rica.
Bull shark populations are continuing to decrease; ongoing shark-culling efforts near beaches to protect beachgoers are cited as one cause.
Euryhaline species that commonly occurs in warm, shallow coastal, estuarine and lower river reaches and can travel far upriver from the ocean.
Identificación
Cómo identificar bull sharks
Los rasgos visuales que los buceadores pueden usar bajo el agua y las especies con las que más se confunde.
Especies similares comunes
Distribución y movimiento
Cómo se mueven bull sharks por el mundo
La distribución amplia, el movimiento estacional o la migración que determinan dónde encuentran los buceadores esta especie.
Euryhaline species that commonly occurs in warm, shallow coastal, estuarine and lower river reaches and can travel far upriver from the ocean.
Conservación
Qué ocurre con Bull Sharks
Estado, presiones y protección con base en fuentes citadas, no en relleno.
Bull shark populations are continuing to decrease; ongoing shark-culling efforts near beaches to protect beachgoers are cited as one cause.
Amenazas principales
Shark culling near beaches
Ongoing shark-culling efforts intended to protect beachgoers have contributed to population decreases.
Encuentros responsables
Cómo bucear con bull sharks
Guía de conservación para buceadores que quieren el encuentro sin añadir presión.
Give bull shark space, avoid blocking the animal's path, and follow local site and operator rules for wildlife interactions with sharks.
Notas de campo
Detalles interesantes que conviene saber
Contexto útil de la especie que hace el encuentro más significativo bajo el agua.
Notas de campo
Euryhaline
Bull sharks can thrive in both salt and fresh water.
Long river movements
They have been recorded traveling up the Mississippi River to Alton, Illinois, about 1,100 kilometres from the ocean.
Cultural appearance
The bull shark appears on the 2000 colones banknote from Costa Rica.
Common names
Also known as the Zambezi shark (informally 'zambi') in Africa and the Lake Nicaragua shark in Nicaragua.
Preguntas frecuentes
Preguntas frecuentes
Respuestas claras de planificación y conservación escritas para visibilidad en buscadores y recuperación por IA.
Fuentes de investigación
Fuentes de información sobre Bull Shark
Referencias principales y fiables detrás de las afirmaciones de campo y conservación de esta página.
Fuentes 4Actualizado
Bull Shark (Carcharhinus leucas) | U.S. Fish & Wildlife Service · Reference · U.S. Fish & Wildlife Service
Primary wildlife guide source.
Florida Museum · Reference · Florida Museum
Supporting wildlife source.
NOAA Fisheries · Reference · NOAA Fisheries
Supporting wildlife source.
Bull shark · Encyclopedia · Wikipedia
Supporting wildlife source.
Especies relacionadas
Más en Sharks
Guías de especies relacionadas dentro de la misma familia de encuentro.