Webgill, in biology, type of respiratory organ found in many aquatic animals, including a number of worms, nearly all mollusks and crustaceans, some insect larvae, all fishes, and a few … WebApr 14, 2024 · 1 Introduction. The gillnet and trap are commonly practiced fishing gears along the East Sea fisheries of Koera, where gillnets mainly catch snow crab (Chionoecetes opilio), blackfin flounder (Glyptocephalus stelleri), herring (Clupea pallasii), and blackfish (Arctoscopus japonicus), whereas trap fishing mainly catch octopus (Enteroctopus …

Does octopus have gills? - Answers

Weboctopus, plural octopuses or octopi, in general, any eight-armed cephalopod (octopod) mollusk of the order Octopoda. The true octopuses are members of the genus Octopus, … WebHow many arms do octopus have? eight arms. 7. ... The large gills filter food from the water and direct it to the labial palps, which surround the mouth. Food is sorted and passed into the mouth. Bivalves have the ability to select food … high road benfleet essex

How many hearts does an octopus have? - BBC …

WebOct 11, 2024 · They use gills to breathe and are invertebrates (lack backbones). Many cephalopods grow fast and die young, the average lifespan of most is just one to three … WebOctopuses have three hearts in their mantles. The two branchial hearts are next to the gills and the central heart is between and behind them. They are oval, blue, and about an inch big. Octopuses have three hearts to compensate for their … WebJul 21, 2024 · One heart circulates blood around its body, and the other two hearts pump blood through its gills to oxygenate its blood. The mimic octopus has a lifespan of about 9 months. It is active during the day. Mimic Octopus Behaviour Mimicry and Impersonation The mimic octopus is a master of disguise. high road benoni