Sharks
Lemon Shark
Negaprion brevirostris · Cartilaginous fish, family Carcharhinidae
Lemon sharks bring character to the sand flats of the Bahamas: big, blunt-faced animals in olive-gold livery, trailing remoras like streamers, mouths fixed in an underbite that ruins their menace at close range. They are among the best-studied sharks on Earth thanks to decades of work in Bimini's mangroves, which revealed social networks, nursery fidelity, and females returning to their own birth lagoons to pup. At Tiger Beach they play second lead to the tigers, arriving first, staying latest, and stacking on the bottom beneath the boat like parked aircraft.
Di mana dan kapan melihatnya
"Resident" berarti sebagian besar penyelaman di destinasi tersebut akan menjumpai mereka; "seasonal" berarti kehadirannya dapat diandalkan pada bulan-bulan yang tercantum; selain itu adalah bonus, bukan rencana.
| Destinasi | Keandalan | Bulan | Catatan |
|---|---|---|---|
| Tiger Beach & Grand BahamaThe Bahamas | Resident: seen on most dives | Nov–Apr | |
| Florida KeysUnited States | Occasional | Sepanjang tahun | |
| Nassau & New ProvidenceThe Bahamas | Occasional | Sepanjang tahun |
Bulan terbaik, sekilas pandang
| Bulan | Destinasi yang dapat diandalkan |
|---|---|
| January | Tiger Beach & Grand Bahama · Florida Keys · Nassau & New Providence |
| February | Tiger Beach & Grand Bahama · Florida Keys · Nassau & New Providence |
| March | Tiger Beach & Grand Bahama · Florida Keys · Nassau & New Providence |
| April | Tiger Beach & Grand Bahama · Florida Keys · Nassau & New Providence |
| May | Florida Keys · Nassau & New Providence |
| June | Florida Keys · Nassau & New Providence |
| July | Florida Keys · Nassau & New Providence |
| August | Florida Keys · Nassau & New Providence |
| September | Florida Keys · Nassau & New Providence |
| October | Florida Keys · Nassau & New Providence |
| November | Tiger Beach & Grand Bahama · Florida Keys · Nassau & New Providence |
| December | Tiger Beach & Grand Bahama · Florida Keys · Nassau & New Providence |
Memahaminya
Habitat: Shallow sand flats, mangrove nurseries, and reef edges; adults commute between lagoons and deeper ledges
Sebaran: Western Atlantic from the Carolinas and Bahamas to Brazil, with a separate population off West Africa; the closely related sicklefin lemon shark fills the same niche in the Indo-Pacific
Perilaku: A yellow-bronze, twin-dorsaled shark that works low over the bottom, often escorted by remoras. Famously social for a shark: juveniles form groups in mangrove nurseries with measurable personalities, and adults gather seasonally at fixed winter sites. At Tiger Beach they cruise under the boat and rest on sand in numbers.
Diet: Bony fish and rays taken over sand, plus crustaceans; hunts most actively at dawn and dusk
Ukuran: biasanya sekitar 2.5 m; terdokumentasi hingga 3.4 m (total length).
Cara berperilaku di sekitarnya
Standard baited-dive discipline: stay settled in the sand line, hands in, let sharks pass overhead without reaching up, and avoid crowding animals resting on the bottom.
Konservasi
Vulnerable: coastal development is squeezing the mangrove nurseries the species depends on, and it is fished through much of its Atlantic range outside sanctuary nations.
Situs-situs terdata yang dikenal dengan hal itu
Lokasi yang disorot dipetakan untuk spesies ini oleh editor kami; angka-angkanya adalah catatan kemunculan GBIF yang dicatat dalam radius sekitar 5 km dari suatu lokasi sejak 1990.
Tonton
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