Reef Fish
Pinnate Batfish
Platax pinnatus · Bony fish — family Ephippidae (batfishes and spadefishes)
The pinnate batfish spends its celebrity early. Juveniles are jet black rimmed in vivid orange, ribbon-thin and taller than long, undulating through the shadows of ledges and silty margins in what is widely interpreted as mimicry of a toxic flatworm; they rank among the most photographed fish in the muck world. Adults trade the costume for silver — a tall, composed schooling batfish of lagoon edges and drop-offs, curious enough to escort divers along a wall. The two stages differ so completely that early naturalists could have described them as separate fish. Finding a juvenile is guide work: they hold tight to dark cover in shallow, protected water and seldom stay long at one site. Bring patience, favor ambient light, and keep the animal between you and its bolt-hole, never cut off from it.
Dónde y cuándo ver uno
"Residente" significa que la mayoría de las inmersiones en ese destino tienen encuentros con ellos; "estacional" significa que su presencia es fiable en los meses indicados; cualquier otra cosa es un extra, no algo con lo que contar.
| Destino | Fiabilidad | Meses | Notas |
|---|---|---|---|
| Raja AmpatIndonesia | Resident — seen on most dives | Todo el año | |
| Bali & Nusa PenidaIndonesia | Occasional | Todo el año | |
| Lembeh StraitIndonesia | Occasional | Todo el año | |
| Banda Sea & AmbonIndonesia | Occasional | Todo el año | |
| Dumaguete, Dauin & Apo IslandPhilippines | Occasional | Todo el año |
El mejor mes, de un vistazo
Comprendiéndolos
Hábitat: Juveniles hug dark cover in sheltered, often silty shallows — ledges, mangrove edges, wreck shadows; adults school along lagoon and outer-reef drop-offs.
Rango: Western Pacific from the Ryukyu Islands through the Philippines and Indonesia to northern Australia and Melanesia.
Comportamiento: Juveniles undulate ribbon-like through shadows in apparent flatworm mimicry; adults are calm, tall-bodied schoolers that sometimes escort divers along a wall for minutes.
Dieta: Algae, small invertebrates, and jellies; adults graze as well as pick.
Tamaño: normalmente alrededor de 0.3 m; documentado hasta 0.45 m (total length; juveniles are taller than long, adults disc-shaped).
Cómo comportarse cerca de uno
Shoot juveniles with patience and minimal light — the orange rim overexposes easily — and let the fish keep its shadowed cover rather than herding it into the open.
Conservación
Not a major fishery species; juveniles are collected for aquaria despite poor survival, and mangrove loss removes nursery habitat.
Puntos conocidos por avistamientos
Ver
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