|
|
|
|
|
|
|
|
|
Eutrophication
| Fisheries glossary |
- An increase in chemical nutrients ? typically compounds containing nitrogen or phosphorus ? in an ecosystem. eutrophication in water often results in an increase in algae growth and decay, which can lead to decreased levels of oxygen and fish populations.
- Enrichment of a water body with plant nutrients (p and n), usually resulting in a community dominated by phytoplankton (see cycle - p,n).
|
Эвтрофикация, русский
- Обогащение вод биогенными элементами, особенно компонентами азота и фосфора, что ускоряет рост водной растительности
- Увеличение в водоеме концентрации питательных веществ для растений и микроорганизмов, сопровождающееся увеличением биомассы
- Спокойные участки рек или озер покрываются тонкой зеленой пленкой из водорослей
Эвтрофикация, евтрофикация (зарастание водоёма), русский
Евтрофикация (зарастание водоёма), русский
|
Containing, английский
Phosphorus, английский
- Phosphore
- A toxic chemical element which is present in very small quantities in bones and nerve tissue. it causes burns if it touches the skin, and can poison if swallowed. (note: the chemical symbol is p.)
Enrichment, английский
Enrichissement
Phytoplankton, английский
- Tiny, free-floating, photosynthetic organisms in aquatic systems.
- Tiny, free-floating, photosynthetic organisms in aquatic systems. they include diatoms, desmids, and dinoflagellates.
- Microscopic planktonic plants.
- Photosynthetic plankton
|
Otter trawl, английский
- An otter trawl is a demersal trawl which uses large rectangular otter boards to keep the opening of the trawl net from closing. otter trawls are towed by a single trawler.
- A cone-shaped net that is dragged along the sea bottom. its mouth is kept open by floats on the headline, weights on the leadline, and two otter boards that shear outward as the net is towed.
Endangered species, английский
- An endangered species is a population of an organism which is at risk of becoming extinct. the iucn has calculated the percentage of endangered species as 40 percent of all organisms based on the sample of species that have been evaluated through to 2006.
- A classification under the endangered species act. a species is considered endangered if it is in danger of extinction throughout a significant portion of its range.
|
|
|
|
|
|
|
