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Remote-control underwater "spy cameras" disguised as sea creatures – including dolphins, ray, sea turtle, tuna, squid, nautilus and pufferfish – allowed the film-makers to get close-up footage of natural dolphin behaviour. Bottlenose dolphins, spinner dolphins, humpback dolphins and killer whales were filmed for the series. [5]
Close up Spadefish at Wakatobi National Park, Maya bay,2016. Ephippidae spadefishes have deep, oval-shaped, laterally compressed bodies with a short head and small terminal mouth. There are bands of brush like teeth on the jaws but there are no teeth on the roof of the mouth. The preoperculum has a finely serrated margin.
Using this information, schooling fish can adjust their distance from adjacent fish if they come too close or stray too far. [73] The visual system in fish is augmented by other sensing systems with comparable or complementary functions. Some fish are blind, and must rely entirely on alternate sensing systems. [74]
The eyes of Winteria telescopa differ slightly from those of other opisthoproctids by their more forward-pointing gaze.. Barreleyes, also known as spook fish (a name also applied to several species of chimaera), are small deep-sea argentiniform fish comprising the family Opisthoproctidae found in tropical-to-temperate waters of the Atlantic, Pacific, and Indian Oceans.
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Their distinctive first dorsal fins take the form of a modified oval, sucker-like organ with slat-like structures that open and close to create suction and take a firm hold against the skin of larger marine animals. [5] The disk is made up of stout, flexible membranes that can be raised and lowered to generate suction. [6]
Garfish are pelagic fish which live close to the water surface. They eat small fish and have a migratory pattern similar to that of the mackerel, arriving a short time before the latter to spawn. Their association with mackerel has led to some older common names such as "mackerel guide" and "mackerel guardian".
Coastal fish are found in the waters above the continental shelves that extend from the continental shorelines, and around the coral reefs that surround volcanic islands. . The total world shoreline extends for 356,000 km (221,000 mi) [3] and the continental shelves occupy a total area of 24.3 million km 2 (9 376 million sq mi)