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A school of large pelagic predator fish (bluefin trevally) sizing up a school of small pelagic prey fish . Pelagic fish live in the pelagic zone of ocean or lake waters—being neither close to the bottom nor near the shore—in contrast with demersal fish that live on or near the bottom, and reef fish that are associated with coral reefs. [1]
They can be contrasted with pelagic fish, which live and feed away from the bottom in the open water column. Demersal fish fillets contain little fish oil (one to four per cent), whereas pelagic fish can contain up to 30 per cent. [not verified in body]
The canary rockfish (Sebastes pinniger), also known as the orange rockfish, is a species of marine ray-finned fish belonging to the subfamily Sebastinae, the rockfishes, part of the family Scorpaenidae. It is native to the waters of the Pacific Ocean off western North America.
Altogether, the pelagic zone occupies 1,330 million km 3 (320 million mi 3) with a mean depth of 3.68 km (2.29 mi) and maximum depth of 11 km (6.8 mi). [2] [3] [4] Pelagic life decreases as depth increases. The pelagic zone contrasts with the benthic and demersal zones at the bottom of the sea. The benthic zone is the ecological region at the ...
Rockfish is a common term for several species of fish, referring to their tendency to hide among rocks. The name rockfish is used for many kinds of fish used for food. [ 1 ] This common name belongs to several groups that are not closely related, and can be arbitrary.
A slot limit is a tool used by fisheries managers to regulate the size of fish that can legally be harvested from particular bodies of water. Usually set by state fish and game departments, the protected slot limit prohibits the harvest of fish where the lengths, measured from the snout to the end of the tail, fall within the protected interval. [1]
The tiger rockfish is a large, heavy bodied species of rockfish [4] with a large mouth. [5] There are 13 robust spines and between 13 and 15 soft rays in the dorsal fin while the anal fin contains 3 spines and 6 or 7 soft rays. There are robust spines on the head and these are the nasal, preocular, supraocular, postocular, tympanic, coronal ...
A long pelagic larval phase can help a species to break its parasite cycles. Pelagic larvae avoid benthic predators. Dispersing as pelagic larvae can be risky. For example, while larvae do avoid benthic predators, they are still exposed to pelagic predators in the water column.