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Chapter 4 vo
chapter 4 vocabulary terms
| Question | Answer |
|---|---|
| Anadromous | spawns in freshwater, lives in salt |
| Benthic | bottom-dwelling |
| Spawning | the act of obtaining eggs from the female fish and sperm from male fish |
| Milt | product of male fishspwaning |
| Stocking rate | number of fish per unit of water |
| Recruitment | production of young |
| Hormones | chemical product of endorcrine glands affecting organs that do not secrete it |
| Detritus | plant and animal debris |
| Catadromous | spawns in salt water, lives in fresh |
| Nursery | area for raising newly hatched fry or seed |
| Substrate | an underlying substance on which something takes hold or takes root |
| Byssus | the method certain mollusks use to attach to objects |
| clarification | to clear |
| clutch | eggs laid at a time |
| crossbreeding | the mating of unrelated strains of the same species to avoid inbreeding |
| density index | the relationship of fish size to the water volume of a rearing unit |
| dredges | a large powerful scoop or suction apparatus for removing mud and gravel. |
| eyed stage | the feature describing when trout eggs are half way through the incubation period |
| feeding chart | chart that shows feeding amounts |
| genes | the unit of inheritance |
| hybrid vigor | appearance of an individual as contrasted with its genetic make-up or genotype |
| hybridization | he act of mixing different species or varieties of animals or plants and thus to produce hybrids |
| hybrids | a mix between two organisms |
| hydrological | the study of how water flows between the atmosphere and the earth |
| inbreeding | the mating of two closely related animals |
| inventory | stock |
| metabolites | a vital process involved in the release of body energy |
| metamorphosis | he process of transformation from an immature form to an adult form in two or more distinct stages |
| microsporidian | phylum of spore closing unicellular parasites |
| mouthbrooders | fish that store fish in their mouth as an incubation |
| phenotypes | The set of observable characteristics of an individual resulting from the interaction of its genotype with the environment |
| photoperiods | periods of brightness tat influence growth, behavior, and reproduction of aquatic organisms |
| production ponds | bodies of water used for the final growing stages |
| spat | baby clam |
| salmonoids | A fish of a group that includes the salmon family together with the pikes, smelts, and argentines |
| volumetric | the volume |
| rotational line-crossing | An approach to the reduction of inbreeding accumulation in trout brood stocks. |
| salmon farming | farming and raising salmon |
| salmon ranching | a process by which indigenous salmon are initially caught and stripped of eggs and milt. |
| selective breeding | Selective breeding is the process of breeding plants and animals for particular genetic traits. |
| sex determination | the genetic process leading to an organism becoming male or female |
| sexing | Determine the sex of |
| standing crop | the quantity or total weight or energy content of the organisms which are in a particular location at a particular time |
Created by:
briannas
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