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Chionoecetes opilio, a species of snow crab, also known as opilio crab or opies, is a predominantly epifaunal crustacean native to shelf depths in the northwest Atlantic Ocean and north Pacific Ocean. It is a well-known commercial species of Chionoecetes, often caught with traps or by trawling.
The generic name Chionoecetes means snow (χιών, chion) inhabitant (οἰκητης, oiketes); [3] opilio means shepherd, and C. opilio is the primary species referred to as snow crab. Marketing strategies, however, employ snow crab for any species in the genus Chionoecetes. The name "snow crab" refers to their being commonly found in cold ...
Chionoecetes opilio is a stenothermic organism, and temperature significantly affects its biology throughout its life history, from embryo to adult. Small changes in temperature (< 2 °C) can increase the duration of egg incubation for C. opilio by a full year. [1]
Chionoecetes bairdi is a species of snow crab, alternatively known as bairdi crab and tanner crab. C. bairdi is closely related to Chionoecetes opilio, and it can be difficult to distinguish C. opilio from C. bairdi. Both species are found in the Bering Sea and are sold commercially under the name "snow crab."
Dungeness crab ready to eat at Fisherman's Wharf, San Francisco. The Dungeness crab is considered a delicacy in the United States and Canada. [13] [14] Long before the area was settled by Europeans, Indigenous peoples throughout the crustacean's range had the crab as a traditional part of their diet and harvested them every year at low tide. [15]
Male Tasmanian giant crabs reach more than twice the size of females, [7] which do not exceed 7 kg (15 lb). [6] Males have one normal-sized and one oversized claw (which can be longer than the carapace width [5]), while both claws are normal-sized in females. [6] This crab is mainly whitish-yellow below and red above; the tips of the claws are ...
The pelagic food web, showing the central involvement of marine microorganisms in how the ocean imports nutrients from and then exports them back to the atmosphere and ocean floor. A marine food web is a food web of marine life. At the base of the ocean food web are single-celled algae and other plant-like organisms known as phytoplankton.
Hematodinium Scientific classification Domain: Eukaryota (unranked): SAR (unranked): Alveolata Phylum: Dinoflagellata Class: Syndiniophyceae Order: Syndiniales Family: Syndiniaceae Genus: Hematodinium Chatton & Poisson, 1930 Species Hematodinium perezi Hematodinium is a genus of dinoflagellates. Species in this genus, such as Hematodinium perezi, the type species, are internal parasites of the ...