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Palaemonetes paludosus, commonly known as ghost shrimp, glass shrimp, and eastern grass shrimp, [2] [3] is a species of freshwater shrimp from the southeastern United States. [4] They can be considered a keystone species based on the services they provide to their habitat. [2] They are also popular in the domestic aquarium business. [5]
Feeder shrimp, ghost shrimp, glass shrimp, grass shrimp, river shrimp or feeder prawns are generic names applied to inexpensive small, typically with a length of 1 to 3 cm (0.39 to 1.18 in), semi-transparent crustaceans commonly sold and fed as live prey to larger more aggressive fishes kept in aquariums.
Neotrypaea californiensis (formerly Callianassa californiensis), the Bay ghost shrimp, is a species of ghost shrimp that lives on the Pacific coast of North America. It is a pale animal which grows to a length of 11.5 cm (4.5 in). One claw is bigger than the other, especially in males, and the enlarged claw is thought to have a function in mating.
Lepidophthalmus turneranus (formerly Callianassa turnerana), the Cameroon ghost shrimp, is a species of "ghost shrimp" or "mud lobster" that lives off the coast of West Africa. It occasionally erupts into dense swarms, one of which resulted in the naming of the country Cameroon .
During surveys in 2016-2019 on Kunashir Island, 28 pairs of Blakiston's fish owls were registered. [38] In Russia, fish owls are killed by fur-trappers, drown in nets set for salmon, and are shot by hunters. [23] In Japan, death by hunting is unlikely, but fish owls have been hit by cars and killed by power lines. [33]
A freshwater aquatic food web. The blue arrows show a complete food chain (algae → daphnia → gizzard shad → largemouth bass → great blue heron). A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.
Palaemon is a genus of caridean shrimp in the family Palaemonidae. [2] Some species, including Palaemon macrodactylus and Palaemon orientis, can inhabit fish ponds where they compete with fish for food and can therefore be considered pests. [3]
This shrimp species is "an important part of the estuarine food web" in the greater San Francisco Bay. [3] It feeds on bivalves, amphipods and foraminiferins, and is prey for various fish, [3] including striped bass, white sturgeon, Pacific tomcod and shellfish such as Dungeness crab. [2]