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We analyzed the infestation of the attached copepod species Lepeophtheirus sp on a wild population of Sciades herzbergii. The infestation and occurrence of attached copepods were related to body size, maturity and sex of host and the presence of damages or lesion on fish skin were described. In 61 fish specimens (37 males and 24 females), total of...
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Citations
... With the development of mariculture, the importance of parasitic Copepoda as pathogenic factors is becoming more and more apparent (Johnson et al., 2004;Todd, 2007;Nagasawa, 2015). Among all orders and suborders of Copepoda, Siphonostomatoida, Monstrilloida, and Poecilostomatoida are exclusively parasites (Fogel et al., 2017;Suárez-Morales, 2018), and only some species of the orders Calanoida, Cyclopoida, and Harpacticoida are parasites (Ho, 2001;Boxshall et al., 2016;Huys, 2016). According to the study of Kabata (1988), parasitic Copepoda belong to the class of Siphonostomatoida (75%), about 20% belong to the Poecilostomatoida, and only about 5% belong to the Cyclopoida. ...
Copepoda are one of the most significant animal groups present in aquatic ecosystems. Ecologists, evolutionary biologists, and biotechnologists continue to test new methods to study the application of Copepoda as model organisms in various fields of pure and applied science, from evolution and ecology to aquaculture as live feed, as biological control of mosquito larvae, as biological indicators of water and sediment quality, in environmental monitoring and as a source of protein in the food industry. This paper reviews the current progress and trends within copepod research from a number of different perspectives. We emphasize the importance of Copepoda and the necessity of strengthening research on various topics related to copepod biology, some of which are of great significance to local sustainable development.
... Some copepods are free-living and some are associated with a wide range of animals (Walter and Boxshall 2019). The orders Siphonostomatoida and Monstrilloida are exclusively parasites (Fogel et al. 2017;Suárez-Morales 2018), and only some species of the orders Calanoida, Cyclopoida, Canuelloida, and Harpacticoida are parasites or associated with a wide variety of organisms (Boxshall et al. 2016;Ho 2001;Huys 2016). The orders Platycopioida, Misophrioida, Mormonilloida, and Gelyelloida are completely free-living (Varela and Lalana 2015). ...
Copepods are important ecologically and represent a large amount of aquatic biomass in both freshwater and marine systems. Despite this, the taxonomy of copepods and other meiofauna is not well understood, hampered by tiny sizes, cryptic taxa, intraspecific polymorphisms and total specimen destruction where DNA methods are employed. In this article we highlight these issues and propose a more up-to-date approach for dealing with them. Namely, we recommend non-destructive DNA extraction methods, coupled with high-throughput sequencing (HTS). Whilst DNA yields may be low, they should still be sufficient for HTS library preparation and DNA sequencing. At the same time morphological specimens can be preserved and the crucial link between morphology and DNA sequence is maintained. This is critical for an integrative taxonomy and a fuller understanding of biodiversity patterns as well as evolutionary processes in meiofauna.
... In general, the prevalence will be lowest in wild stock. This result is comparatively lower than the earlier report in sticklebacks (Jones and Prosperi-Porta, 2011) and Sciades herzbergii (Fogel et al. 2017). ...
Diverse fish parasites were reported from marine ecosystem. Among them parasitic copepods are more dominant, widely distributed and frequently described from tropical regions. There are limited records on marine parasites in India. Presence of sea lice, Lepeophtheirus crassus at Gulf of Mannar, south east coast of India is reported for the first time. Morphological analysis revealed that females are with distinct brood pouch and slightly larger than males. As a therapeutic measure the infested fishes were treated with freshwater and formalin and formalin found to be effective. Abstract Diverse fish parasites were reported from marine ecosystem. Among them parasitic copepods are more dominant, widely distributed and frequently described from tropical regions. There are limited records on marine parasites in India. Presence of sea lice, Lepeophtheirus crassus at Gulf of Mannar, south east coast of India is reported for the first time. Morphological analysis revealed that females are with distinct brood pouch and slightly larger than males. As a therapeutic measure the infested fishes were treated with freshwater and formalin and formalin found to be effective.
