An analysis of swimming performance in the Norway lobster, Nephrops norvegicus L. infected by a parasitic dinoflagellate of the genus Hematodinium

Alterations in the biochemistry and ultrastructure of the deep abdominal flexor muscle of the Norway lobster Nephrops norvegicus during infection by a parasitic dinoflagellate of the genus Hematodinium

“…In this study, the main reduction in DAF glycogen was seen at Stage 2 of Hematodinium infection, and Stentiford et al (2000) reported that the main reduction in swimming performance also occurred at Stage 2. The progressive reduction in carbohydrate reserves during Hematodinium infection may thus be the major factor in the reduced swimming performance.…”

Alterations in the biochemistry and ultrastructure of the deep abdominal flexor muscle of the Norway lobster Nephrops norvegicus during infection by a parasitic dinoflagellate of the genus Hematodinium

“…In this study, the main reduction in DAF glycogen was seen at Stage 2 of Hematodinium infection, and Stentiford et al (2000) reported that the main reduction in swimming performance also occurred at Stage 2. The progressive reduction in carbohydrate reserves during Hematodinium infection may thus be the major factor in the reduced swimming performance.…”

Assessing the Effects of Trematode Infection on Invasive Green Crabs in Eastern North America

“…We also anecdotally noted enhanced lethargy in infected versus control crabs in the 120-h (high) infection treatment just after the induction experiment; however, these lethargic behaviors seemed to disappear over time, and by four weeks, heavily infected crabs qualitatively behaved similarly to control crabs. Slower righting response times due to environmental conditions like temperature, hypoxia, and chemical toxins have been observed in several species of crabs (e.g., [ 82 – 84 ]), and in Norway lobsters, infection by a parasitic dinoflagellate resulted in lower swimming capacity in infected versus uninfected individuals [ 85 ]. Overall, slower response times and increased lethargy could be detrimental to afflicted individuals that are less able to flee from predators, thereby increasing their predation risk [ 74 , 86 ].…”

Ecological Meltdown in the Firth of Clyde, Scotland: Two Centuries of Change in a Coastal Marine Ecosystem

“…This parasite renders the prawns valueless. The parasite impairs swimming ability of Nephrops and infected prawns spend more time out of their burrows [94]. In the past, parasitized prawns would have been picked off by predators, but in the reduced predation environment of the present day Firth of Clyde, levels of parasitism have increased.…”

Alterations in the biochemistry and ultrastructure of the deep abdominal flexor muscle of the Norway lobster Nephrops norvegicus during infection by a parasitic dinoflagellate of the genus Hematodinium

“…In this study, the main reduction in DAF glycogen was seen at Stage 2 of Hematodinium infection, and Stentiford et al (2000) reported that the main reduction in swimming performance also occurred at Stage 2. The progressive reduction in carbohydrate reserves during Hematodinium infection may thus be the major factor in the reduced swimming performance.…”

Assessing the Effects of Trematode Infection on Invasive Green Crabs in Eastern North America

“…We also anecdotally noted enhanced lethargy in infected versus control crabs in the 120-h (high) infection treatment just after the induction experiment; however, these lethargic behaviors seemed to disappear over time, and by four weeks, heavily infected crabs qualitatively behaved similarly to control crabs. Slower righting response times due to environmental conditions like temperature, hypoxia, and chemical toxins have been observed in several species of crabs (e.g., [ 82 – 84 ]), and in Norway lobsters, infection by a parasitic dinoflagellate resulted in lower swimming capacity in infected versus uninfected individuals [ 85 ]. Overall, slower response times and increased lethargy could be detrimental to afflicted individuals that are less able to flee from predators, thereby increasing their predation risk [ 74 , 86 ].…”

Ecological Meltdown in the Firth of Clyde, Scotland: Two Centuries of Change in a Coastal Marine Ecosystem

“…This parasite renders the prawns valueless. The parasite impairs swimming ability of Nephrops and infected prawns spend more time out of their burrows [94]. In the past, parasitized prawns would have been picked off by predators, but in the reduced predation environment of the present day Firth of Clyde, levels of parasitism have increased.…”

Alterations in the biochemistry and ultrastructure of the deep abdominal flexor muscle of the Norway lobster Nephrops norvegicus during infection by a parasitic dinoflagellate of the genus Hematodinium

“…In this study, the main reduction in DAF glycogen was seen at Stage 2 of Hematodinium infection, and Stentiford et al (2000) reported that the main reduction in swimming performance also occurred at Stage 2. The progressive reduction in carbohydrate reserves during Hematodinium infection may thus be the major factor in the reduced swimming performance.…”

Assessing the Effects of Trematode Infection on Invasive Green Crabs in Eastern North America

“…We also anecdotally noted enhanced lethargy in infected versus control crabs in the 120-h (high) infection treatment just after the induction experiment; however, these lethargic behaviors seemed to disappear over time, and by four weeks, heavily infected crabs qualitatively behaved similarly to control crabs. Slower righting response times due to environmental conditions like temperature, hypoxia, and chemical toxins have been observed in several species of crabs (e.g., [ 82 – 84 ]), and in Norway lobsters, infection by a parasitic dinoflagellate resulted in lower swimming capacity in infected versus uninfected individuals [ 85 ]. Overall, slower response times and increased lethargy could be detrimental to afflicted individuals that are less able to flee from predators, thereby increasing their predation risk [ 74 , 86 ].…”

Ecological Meltdown in the Firth of Clyde, Scotland: Two Centuries of Change in a Coastal Marine Ecosystem

“…This parasite renders the prawns valueless. The parasite impairs swimming ability of Nephrops and infected prawns spend more time out of their burrows [94]. In the past, parasitized prawns would have been picked off by predators, but in the reduced predation environment of the present day Firth of Clyde, levels of parasitism have increased.…”