| 词汇 | zooplankton |
| 释义 | zooplankton noun[ U ] uk /ˌzəʊ.əˈplæŋk.tən/ us /ˌzoʊ.əˈplæŋk.tən/ very small animals that float near the surface of water and on which other sea creatures feed浮游动物 zooplankton | American Dictionaryzooplankton plural noun us/ˌzoʊ·əˈplæŋk·tən/ biology very small animals that float near the surface of water Examples of zooplanktonzooplankton The role of zooplankton in the transmission of helminth parasites to fish. The habitat is rich in fauna including a range of zooplankton, fish and birds. As a consequence of the gradient in environmental conditions, the distribution of zooplankton and definitive hosts is also influenced. Initially, the constraints of small jaw size in larval fish necessitate feeding on zooplankton, which are difficult to detect visually. In tropical waters, zooplankton are a dominant trophic link to pelagic fish. This decline was attributed to climatic changes that affected the entire food chain from zooplankton to fish, sea birds and marine mammals. This pattern also determines the distribution of zooplankton, with a characteristic specific composition in different water masses. It is not immediately clear why this should be so, but it may relate to abundance of zooplankton. In addition, mysids can migrate into the zooplankton. They were part of a complex trophic web of the time including primary producers (phytoplankton) and primary to tertiary consumers (zooplankton and filterfeeders, suspension and deposit feeders, and invertebrate predators). We were unable to count particles on the 250 and 125 m sieves owing to the abundance of zooplankton faecal pellets that obscured the charcoal. Cladocerans amounted to maximum 5% of the zooplankton numbers, and rotifers were always at relative abundances lower than 1%, possibly due to inadequate mesh size to sample all rotifer species. Crustacean zooplankton food web structure in lakes of varying acidity. In weak ones, anchoveta and zooplankton both consume phytoplankton and are in turn ingested by carnivores. Zooplankton was sampled in the coastal and in the pelagic zone (c. 2.5 km offshore). These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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