Cephalopods
Broadclub Cuttlefish
Sepia latimanus · Cephalopod mollusk — family Sepiidae; the largest cuttlefish on tropical Indo-Pacific reefs
The broadclub cuttlefish is the big, watchable cuttlefish of tropical reefs — second in size only to Australia's giant — and the one most likely to meet a diver's gaze with its strange W-shaped pupil and simply hold position, hovering on the ripple of its fin skirt. Its party piece is the passing cloud: bands of dark color strobing forward across face and arms while it stalks a crab, apparently dazzling the prey into stillness before the twin feeding tentacles fire. Individuals often tolerate long, close observation, cycling camouflage and curiosity in equal measure. In breeding aggregations males guard females and flash zebra patterns at rivals, sometimes courting on one body half while warning on the other. Eggs go deep into branching coral like clusters of white grapes. Approach slowly; ink means the show is over.
इसे कहाँ और कब देखें
"निवासी" का अर्थ है कि उस गंतव्य पर अधिकांश डाइव्स में उनसे मुलाकात होती है; "मौसमी" का अर्थ है कि वे सूचीबद्ध महीनों में विश्वसनीय रूप से मौजूद रहते हैं; इसके अलावा जो भी मिले वह बोनस है, योजना नहीं।
| गंतव्य | विश्वसनीयता | माह | नोट्स |
|---|---|---|---|
| Sipadan & MabulMalaysia | Resident — seen on most dives | साल भर | |
| Raja AmpatIndonesia | Resident — seen on most dives | साल भर | |
| PalauPalau | Resident — seen on most dives | साल भर | |
| Cairns & the Ribbon ReefsAustralia | Resident — seen on most dives | साल भर | |
| Similan Islands & Richelieu RockThailand | Resident — seen on most dives | साल भर | |
| MoalboalPhilippines | Resident — seen on most dives | साल भर |
एक नज़र में सर्वश्रेष्ठ महीना
इन्हें समझना
आवास: Coral reefs and adjacent seagrass and rubble, hovering near branching coral where it hunts and breeds.
रेंज: Indo-Pacific from the Andaman Sea through the Coral Triangle to northern Australia, Micronesia, and southern Japan.
व्यवहार: Famous for the passing-cloud display — bands of dark color strobing forward over the face and arms to mesmerize prey; breeding males guard females and flash zebra patterns at rivals, sometimes displaying differently on each body half.
आहार: Crabs, shrimp, and fishes struck with twin feeding tentacles after a slow stalk.
आकार: आमतौर पर लगभग 0.3 m; दर्ज अधिकतम गहराई 0.5 m (mantle length; heavyweights reach roughly 10 kg).
इसके आसपास कैसे व्यवहार करें
Move gently and stay to one side; a relaxed animal will hold position and cycle displays for minutes, while a startled one inks and the audience is over. Leave egg clusters in branching coral untouched.
संरक्षण
Formally Data Deficient; taken in reef fisheries across parts of the range, and breeding-season animals are conspicuously easy targets.
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