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The Pacific geoduck (/ ˈ ɡ uː i ˌ d ʌ k / GOO-ee-duk; Panopea generosa) is a species of very large saltwater clam in the family Hiatellidae. [1] [2] The common name is derived from the Lushootseed name, gʷidəq. The geoduck is native to the coastal waters of the eastern North Pacific Ocean from Alaska to Baja California. [2]
Geoduck aquaculture or geoduck farming is the practice of cultivating geoducks (specifically the Pacific geoduck, Panopea generosa) for human consumption. The geoduck is a large edible saltwater clam , a marine bivalve mollusk , that is native to the Pacific Northwest .
The 25.5-acre site would be larger than other geoduck farms in the county. The known impacts of this size of geoduck farm in the south Puget Sound are limited. Environmental Impact Statement
English: Female Daphnia longispina with a clutch of asexual (parthenogenetic) eggs. The animal is about 2.2 mm long. Picture from wild caught female from rock pol in south-Western Finland. Picture by Dieter Ebert.
Panopea zelandica, commonly known as the deepwater clam or New Zealand geoduck, is a large species of marine bivalve mollusc in the Panopea (geoduck) genus of the family Hiatellidae. [1] It is also sometimes called a king clam , or a gaper – in reference to the shell not being closed at either end.
Vent sexing in Wenchang, Hainan, China (2014). Vent sexing, also known simply as venting, involves squeezing the feces out of the chick, which opens up the chick's anal vent (called a cloaca) slightly, allowing the chicken sexer to see if the chick has a small "bump", which would indicate that the chick is a male.
When mating, the female seahorse deposits up to 1,500 (average of 100 to 1,000) eggs in the male's pouch, located on the ventral abdomen at the base of the tail. Male juveniles develop pouches when they are 5–7 months old. The male carries the eggs for 9 to 45 days until the seahorses emerge fully developed, but very small.
A female produces an ovum with a full set (two sets of genes) provided solely by the mother. Thus, a male is not needed to provide sperm to fertilize the egg. This form of asexual reproduction is thought in some cases to be a serious threat to biodiversity for the subsequent lack of gene variation and potentially decreased fitness of the offspring.