WebApr 6, 2009 · The efficiency of assimilation of carbon and nitrogen by Littorina saxatilis, as calculated from the carbon and nitrogen content of food and faeces, showed that the … WebJun 1, 1993 · This study considers the impact of digenean parasites, especially Cryptocotyle lingua (Creplin) on the survival, reproduction, growth rate and foot colour of Littorina littorea (Forbes and Hanley). An 18 month field experiment demonstrated decreased survivorship of infected snails. A laboratory experiment showed a drastic …
Effects of host habitat quality on the viability of Cryptocotyle …
WebSummary. The cercaria of Cryptocotyle lingua responds to the onset of mechanical vibrations and to a decrease in light intensity by an increase in activity. The cercaria … WebThe cercaria of Cryptocotyle lingua possesses a pair of pigmented rhabdomeric photoreceptors situated antero-dorsally, and a median unpigmented rhabdomeric photoreceptor lying slightly ventral to the middle region of the body immediately anterior to the transverse commissure. Each pigmented photoreceptor consists of two asymmetrical … fenner brockway house
Sektion, Parasitology and Aquatic Pathobiology - Publikationer ...
WebFeb 22, 2007 · A detailed examination of the abundant flatfish species Platichthys flesus, the flounder, in the tidal Thames has revealed the presence of four digenean metacercarial parasites, Cryptocotyle concava (Creplin, 1825), Timoniella imbutiforme (Molin, 1859), T. praeterita (Looss, 1901) and Labratrema minimus (Stossich, 1887). Flounders were … WebCryptocotyle belongs to this superfamily and induces black spot disease on fish. Human can potentially be infected by consumption of parasitized fish. However, so far, its impact on human health is still unknown and few publications exist dealing with its recovery, identification and distribution among commercially important fish. WebAdult Cryptocotyle lata sp. nov. worms were obtained from experimental studies. In the Russian southern Far East, the life cycle of this parasite is carried out using freshwater snails (Boreoelona ussuriensis), freshwater fish, and birds as the first intermediate, second intermediate, and definitive hosts, respectively. fenner brockway wikipedia