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Bullenhai
Carcharhinus leucas
Tropische und subtropische Küstengewässer, Flussmündungen, Flüsse und Süßwasserseen. Verträgt sehr geringe Salzgehalte.
Kräftiger, kompakter Körper mit kurzem, stumpfem Maul. Grauer Rücken, weißer Bauch. Große, weit vorn stehende erste Rückenflosse.
Identification
Bull sharks are distinguished by their stocky, heavy-set build, blunt rounded snout, and small eyes. The body is grey to brownish-grey on top and white beneath. Adults reach 3.4 meters and 300 kg.
Distribution & Habitat
Bull sharks are the only large shark species routinely found in fresh water. They have been recorded over 3,000 km up the Amazon and over 1,100 km up the Mississippi. This euryhaline ability is physiological — their kidneys recycle urea to maintain osmotic balance. In marine environments they are coastal, preferring murky, shallow water near river mouths.
Behavior
Bulls are opportunistic apex predators that eat almost anything: fish, rays, turtles, other sharks, dolphins, and occasionally land animals that wander into rivers. Their aggressive disposition and tolerance for brackish and fresh water mean they are responsible for a disproportionate number of shark-human encounters.
Where to See Them
Playa del Carmen (Mexico) hosts a famous bull shark aggregation from November to March, where females gather in shallow water. Beqa Lagoon in Fiji and Protea Banks in South Africa also offer regular encounters. Bull shark dives are typically baited — consider whether this is ethically acceptable to you before booking.
Tropische und subtropische Küsten weltweit. Dringt in den Amazonas, den Sambesi und den Mississippi vor. Bekannt aus Playa del Carmen (Mexiko).
Aggressiv und territorial. Eine der wenigen Haiarten, die in Süßwasserflüsse eindringt. Verantwortlich für viele Angriffe auf Menschen in seichtem Wasser.
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