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"Ch. 13 - Biological Productivity and Energy Transfer": HTML5 Crossword |
Across3. A group of interrelated food chains. (7)
6. Algal plankton. One of the most important communities of primary producers in the ocean. (13)
8. A situation that occurs when adult fish in a population are harvested faster than their natural rate of reproduction. (11)
11. Another term for red tide. (17)
12. The autotrophic component of an ecosystem that produces the food that supports the biocommunity. (8)
14. The _______ yield is the maximum fishery biomass that can be removed yearly and still be sustained by the fishery ecosystem. (18)
15. The process by which plants and algae produce carbohydrates from carbon dioxide and water in the presence of chlorophyll, using light energy and releasing oxygen. (14)
17. Another term for driftnet. (7)
18. The _______ pyramid is a representation of trophic levels that illustrates the progressive decrease in total biomass at successive higher levels of the pyramid. (7)
19. A reddish-brown discoloration of surface water, usually in coastal areas, caused by high concentrations of microscopic organisms, usually dinoflagellates. Toxins produced by the dinoflagellates may kill fish directly, or it may lead to an indirect depletion of oxygen which can asphyxiate many animals. (7)
20. Primarily bacteria that break down non-living organic material, extract some of the products of decomposition for their own needs, and make available the compounds needed for primary production. (10)
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Down1. A region of hypoxic conditions that kills off most marine organisms that cannot escape. It is usually the result of eutrophication caused by runoff from land-based fertilizer applications. (8)
2. Any loose material produced directly from rock disintegration, or material resulting from the disintegration of dead organic remains. (8)
4. Marine organisms that are caught incidentally by fishers seeking commercial species. (7)
5. The rate at which energy is stored by organisms through the formation of organic matter using energy derived from solar radiation (photosynthesis) or chemical reactions (chemosynthesis). Also known simply as productivity. (19)
7. The passage of energy materials from producers through a sequence of a herbivore and a number of carnivores. (9)
9. A layer that extends from the surface of the ocean to a depth where enough light exists to support photosynthesis, rarely deeper than 100 m. (12)
10. A fishing net made of monofilament fishing line that catches organisms by entanglement. (8)
13. The enrichment of waters by a previously scarce nutrient. (14)
16. An animal within an ecosystem that consumes the organic mass produced by the producers. (8)
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ACROSS
3. A group of interrelated food chains. (7)
6. Algal plankton. One of the most important communities of primary producers in the ocean. (13)
8. A situation that occurs when adult fish in a population are harvested faster than their natural rate of reproduction. (11)
11. Another term for red tide. (17)
12. The autotrophic component of an ecosystem that produces the food that supports the biocommunity. (8)
14. The _______ yield is the maximum fishery biomass that can be removed yearly and still be sustained by the fishery ecosystem. (18)
15. The process by which plants and algae produce carbohydrates from carbon dioxide and water in the presence of chlorophyll, using light energy and releasing oxygen. (14)
17. Another term for driftnet. (7)
18. The _______ pyramid is a representation of trophic levels that illustrates the progressive decrease in total biomass at successive higher levels of the pyramid. (7)
19. A reddish-brown discoloration of surface water, usually in coastal areas, caused by high concentrations of microscopic organisms, usually dinoflagellates. Toxins produced by the dinoflagellates may kill fish directly, or it may lead to an indirect depletion of oxygen which can asphyxiate many animals. (7)
20. Primarily bacteria that break down non-living organic material, extract some of the products of decomposition for their own needs, and make available the compounds needed for primary production. (10)
DOWN
1. A region of hypoxic conditions that kills off most marine organisms that cannot escape. It is usually the result of eutrophication caused by runoff from land-based fertilizer applications. (8)
2. Any loose material produced directly from rock disintegration, or material resulting from the disintegration of dead organic remains. (8)
4. Marine organisms that are caught incidentally by fishers seeking commercial species. (7)
5. The rate at which energy is stored by organisms through the formation of organic matter using energy derived from solar radiation (photosynthesis) or chemical reactions (chemosynthesis). Also known simply as productivity. (19)
7. The passage of energy materials from producers through a sequence of a herbivore and a number of carnivores. (9)
9. A layer that extends from the surface of the ocean to a depth where enough light exists to support photosynthesis, rarely deeper than 100 m. (12)
10. A fishing net made of monofilament fishing line that catches organisms by entanglement. (8)
13. The enrichment of waters by a previously scarce nutrient. (14)
16. An animal within an ecosystem that consumes the organic mass produced by the producers. (8)
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