Ecological studies on parasitic copepods infecting fish fins, with special references to the life cycle and infection-site specificity
Parasitology is the science that deals with one of the several different kinds ofsymbiotic relationships including the parasitism (Bush et al. 2001). Organisminvolves in parasitism are called parasite and the host (Rohde, 1993). Bush et al.(2001) picked the definition of parasites according to the O...
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| Format: | Thesis Book |
| Language: | English |
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| Summary: | Parasitology is the science that deals with one of the several different kinds ofsymbiotic relationships including the parasitism (Bush et al. 2001). Organisminvolves in parasitism are called parasite and the host (Rohde, 1993). Bush et al.(2001) picked the definition of parasites according to the Oxford English Dictionaryas the organism, which lives in or upon another organism and draw it nutrient directlyfrom it. While, host is an organism that harbors a parasite, or a mutual or commensalsymbiont, typically providing nourishment and shelter (Rohde, 1993). To defineparasitism, one has to emphasize the damage parasites inflicted on hosts, themetabolic dependence of parasites on hosts, and ecological interactions betweenpopulations of these two species of living organisms (Bush et al. 2001).Ecology has been defined as the study of interactions between organisms andtheir environments and among the organisms inhabiting these environments (Sobecka,2012). This is a complex field of study, which is why it should be investigated onvarious levels. In the ecology of parasites, the niche which is the entirety of theparasite-host relationship and fragmentation, is of fundamental importance (Combes,1995).Parasite lives at the expense of the host, but it is also dependent on its host inmany other aspects. Parasite may impose many impacts to the host. the nutritional,habitat, and dispersal exploitation of a parasite may lower the fitness of the host. Theyalso have the ability to modify host behavior that may lead to their castration (Levri,1998). Based on the way of invasion to a host, parasite can be classified into severalcategories. Endoparasite is the parasite confined within the body of the host whileectoparasite is typically restricted to the exterior part of the host's body (Sobecka,2012). Mesoparasites are the in between group, with some part of the parasite buriedinto the host tissue, and some part is exposed to the outdoor world (Kearn, 2010). Allparasitic nematodes and the majority of flatworms are endoparasites, while themajority of arthropods are ectoparasites. |
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| Physical Description: | 127 leaves; 30 cm. |
| Bibliography: | Includes bibliographical references (leaves 116-125) |