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Molluscs of the Pacific Ocean (1 C, 455 P) Sponges of the Pacific Ocean (9 P) * Fauna of Oceania (12 C, 2 P) A. Fauna of the Aleutian Islands (1 C, 11 P) C.
Chrysaora fuscescens, the Pacific sea nettle or West Coast sea nettle, is a widespread planktonic scyphozoan cnidarian—or medusa, "jellyfish" or "jelly"—that lives in the northeastern Pacific Ocean, in temperate to cooler waters off of British Columbia and the West Coast of the United States, ranging south to México.
[13] [14] The only known predator of the Pacific white-sided dolphin is the killer whale, [15] but at least one case of predation by the great white shark has been recorded. [16] The total population may be as many as 1 million. [6] However, the tendency of Pacific white-sided dolphins to approach boats complicates precise estimates via sampling.
Point Defiance Zoo & Aquarium (PDZA) is the only combined zoo and aquarium in the Pacific Northwest, located in Tacoma, Washington, US, owned by Metro Parks Tacoma.Situated on 29 acres (12 ha) in Tacoma's Point Defiance Park, the zoo and aquarium are home to over 9,000 specimens representing 367 animal species.
Pacific electric ray females are larger than their male counterparts, measuring 164 cm (65 in) in width (their pectoral disc) and a total of 137 cm (54 in) in length. Male Pacific electric rays are 92 cm (36 in) in width and 110 cm (43 in) in length. [15] Both sex's pectoral fin disc width is roughly 1.2 greater than their length. [13]
The aquarium features a collection of over 11,000 animals, representing over 500 different species, in exhibits ranging in size and capacity from about 5,000 to 350,000 gallons. [3] The Pacific Ocean is the focus of three major permanent galleries, Southern California and Baja, the Northern Pacific, and the Tropical Pacific. [2]
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The Pacific black duck has declined sharply in numbers in New Zealand and several Australian islands due to competition from and hybridisation with the introduced mallard. [15] Rhymer et al. (1994) say their data "points to the eventual loss of identity of the grey duck as a separate species in New Zealand, and the subsequent dominance of a ...