When a female copepod ingests the remains of a male mosquito larva killed by the protozoans, the copepod also ingests the spores. |
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The larvae are ingested by the copepod crustacea, Cyclops, which actively chase them. |
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In the filial generation, haplosis is by meiosis to produce spores infectious for a copepod intermediate host. |
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The calanoid copepod Lucicutia grandis is an indicator species for this habitat. |
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In Maritime waters, a typical pelagic food chain may have the following organisms in it: diatom, copepod, herring, cod, and human. |
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Herring can also visually detect larger prey, such as an individual copepod or a mysid shrimp, and execute directed attacks on these targets. |
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About 40 species of copepod belonging to the Eudiaptomus, Diaptomus and Cyclops genera may act as intermediate host for the parasite. |
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Migration may also allow a copepod or other animal to change its position horizontally. |
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The photograph at the top left is a species of copepod, the same family as sea lice, which proliferate under and around salmon farms. |
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The lifecycle of this parasite is complex and involves a number of hosts: a copepod crustacean, a carnivorous fish and a fish-eating mammal. |
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Ludwig's plan also calls for growing rotifers and copepod nauplii in ponds or indoor tanks and redesigning a device called a rotating drum filter to harvest them. |
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If the chemical residues in the environment are sufficient to affect those copepod populations, then that could lead to a decline in the food resource for wild salmon. |
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A single copepod can have as many as 10,000 Vibrio cholerae cells. |
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The eggs hatch after 8 to 12 days in water between 16 and 20 °C. They release a ciliated larva called coracidium which is ingested by a small planktonic aquatic crustacean: the copepod. |
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Its eyes are round and small and are usually host to a parasitic copepod, except in the case of the St. Lawrence specimens observed by GEERG which rarely have parasites. |
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The parasite called Lernaeocera branchialis, a tiny copepod crustacean like this one, lived on the haddock's gills where it sustained itself by tapping into the haddock's bloodstream. |
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If copepod concentrations reach high levels, schooling herrings adopt a method called ram feeding. |
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Some copepod females solve the problem by emitting pheromones, which leave a trail in the water that the male can follow. |
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During mating, the male copepod grips the female with his first pair of antennae, which is sometimes modified for this purpose. |
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During the naupliar stage, the copepod host ingests the unicellular dinospore of the parasite. |
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The dinospore is not digested and continues to grow inside the intestinal lumen of the copepod. |
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Not much is known about the dinospore stage of Blastodinium and its ability to persist outside of the copepod host in relatively high abundances. |
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The copepod Calanus finmarchicus, which dominates the northeastern Atlantic coast, has been shown to be greatly infected by this parasite. |
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The drastic reduction in northeastern Atlantic copepod stocks during the late 1960s may be another culprit. |
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Within this size group, the epibiosis trophic strategy identified in the meiobenthic harpacticoid copepod was present only at this site. |
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One of many well-investigated examples of overdominance in animals is the colour polymorphism that exists in the marine copepod crustacean Tisbe reticulata. |
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A number of copepod and ostracod crustaceans possess eyes with mirrors, but the mirrors are so small that it is difficult to tell whether the images are used. |
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About 4mm long and almost transparent, with a single eye and fine red antennae running the length of its body, it is a copepod, a type of crustacean noted for being, microgram for microgram, the world's strongest animal. |
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An analysis of sinking rates of natural copepod and euphausiid fecal pellets. |
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If an infested copepod is drunk by someone who has not filtered his water properly, the larvae migrate to his skin and the cycle starts again. In this section Cure all? |
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From the human, rather than the copepod point of view, though, the biggest question about the Arctic is this: is it affecting other parts of the Earth's climate those regions where people live? |
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Short-term variability of copepod abundance in Jurumirin reservoir, Sao Paulo, Brazil. |
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Halse has recently identified a new species of calanoid copepod from saline lakes in the central and southern wheatbelt. |
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A single juvenile herring could never catch a large copepod. |
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Knowing the impact of formalin on copepod size helps us to obtain reliable estimates of copepod biomass and thus to better assess the energy flow to higher trophic levels. |
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The dominant calanoid copepod, Arctodiaptomus spinosus, is a typical crustacean of sodium lakes and a eurythermic species reproducing at a wide range of temperatures. |
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The bacterium that causes cholera, Vibrio cholerae, has a known association with the crustacean copepod which lives on zooplankton, a type of plankton. |
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The population of Calanus agulhensis, a large species that dominates the copepod community in terms of biomass, has a center of distribution on the central Agulhas Bank. |
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Since 1997 the copepod biomass on the central Agulhas Bank has declined significantly while the biomass of pelagic fish has increased significantly. |
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