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Upogebia pugettensis is currently facing a serious threat from the non-native isopod parasite Orthione griffenis (Markham, 2004). Female Upogebia pugettensis are infested with the parasite more than their male counterparts (80% compared to 57%). Female Orthione griffenis attach themselves to the gill of the shrimp. They then consume the blood ...
Orthione griffenis is an Epicaridean isopoda parasite that is found on the gill chamber of Upogebia mud shrimp. [3] Female O. griffenis are quite different from their male counterpart. Females have an oblong body, that is typically 6-24mm long with a width of half the length.
Necrotising hepatopancreatitis (NHP), is also known as Texas necrotizing hepatopancreatitis (TNHP), Texas pond mortality syndrome (TPMS) and Peru necrotizing hepatopancreatitis (PNHP), [1] is a lethal epizootic disease of farmed shrimp. It is not very well researched yet, but generally assumed to be caused by a bacterial infection.
The shrimp-farming industry has developed several broodstocks of both P. stylirostris and P. vannamei that are resistant against IHHN infection. [1] The disease is caused by a single-stranded DNA virus of the species Decapod pestylhamaparvovirus 1, earlier known as IHHN virus, the smallest of the known penaeid shrimp viruses (22 nm). [2]
The term mud shrimp is used for a number of different mud-dwelling crustaceans: The former infraorder Thalassinidea, which included genera such as Callianassa, Pestarella and Upogebia. Infraorder Axiidea, comprising part of the former infraorder Thalassinidea; Infraorder Gebiidea, comprising part of the former infraorder Thalassinidea
Like humans and other animals, fish suffer from diseases and parasites. Fish defences against disease are specific and non-specific. Fish defences against disease are specific and non-specific. Non-specific defences include skin and scales, as well as the mucus layer secreted by the epidermis that traps microorganisms and inhibits their growth.
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 ...
They are colloquially known as mud shrimp, ghost shrimp, or burrowing shrimp; [3] however, these decapods are only distantly related to true shrimp. Axiidea and Gebiidea are divergent infraorders of the former infraorder Thalassinidea. These infraorders have converged ecologically and morphologically as burrowing forms. [3]