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ch25 aquaculture
Chapter 25 Aquaculture Indentification and Production management
| Question | Answer |
|---|---|
| abductor muscle | strong muscle that allows a shell to open and close |
| alevin | young salmon |
| arthropods | crustacean with an external skeleton |
| aquacrops | commercially produced plant or animal living in or around a water source |
| aquaculture | production of living plants, animals, and other organisms that grow and live in or around water |
| aquarium | small sized, rectangular area that holds water to contain small fish |
| ascites | fluid buildup in the abdoment of fish caused by a virus or bacterial infection commonly called dropsy |
| aquatic | pertaining to water |
| barbs | also called barbels, devices on the fish that detect food, danger and movement |
| bivalves | mollusks with two shells |
| brackish water | a mixture of freshwater and salt water |
| broodfish | mature male and female breeding fish used for reproductive purposes |
| cage | structure made to float on the water to hold aquatics |
| carapace | thorax, abdoment, and limbs |
| caudal fin | the tail fin that acts as a propeller |
| cauliflower disease | nickname for lymphocytosis |
| cloudy eye | bacterial infection in one or both eyes of fish |
| cold water | water temperature below 50 degrees |
| cool water | water temperature between 50-60 degrees |
| cotton wool disease | nickname for fish fungus |
| crumbles | flakes or blocks of fish food |
| crustacean | aquatic animal with an outer body shell and legs |
| decapod | crustacean with five pairs of legs |
| dissolved oxygen | oxygen found in the water for living organisms to breath |
| dropsy | nickname for ascites |
| exoskeleton | external cartilage on the outside of the body |
| expressing | placing pressure on the abdomen to remove eggs or sperm |
| fingerling | immature fish greater than an inch in size |
| fin rot | bacterial condition that causes the fin tissue to wear away or deteriorate |
| fins | structures that act as arms and legs and allow movement in the water |
| fish | aquatic species that have scales, gills, and fins |
| fish fungus | fungal spores that develop in growths on the face, eyes, and gills, and resemble cotton commonly called cotton wool disease |
| food fish production | raising fingerlings to market size to be sold as food products |
| freshwater | water with little to no salt content |
| fry | newborn fish larvae |
| gills | structures that act as lungs as water passes over them |
| hatchery | place where fish are fertilized, bred, hatched, and raised |
| head | part of the body containing the eyes, mouth, and gills |
| ich | common aquatic parasite caused by a protozoan that produces white spots on the skin, commonly called whitespot |
| intensity biomass | the number of species in a volume of water |
| lymphocytosis | viral disease that causes white to gray growths to develop over the skin, commonly called cauliflower disease |
| meal | fine ground food for young fish and aquatics |
| milt | fish sperm |
| mollusk | aquatic species that have only a thick hard shell |
| mouth brooders | fish that incubate their eggs inside the mouth |
| operculum | gill covering that divides the head from the trunk |
| pellets | fish meal bound into larger particles |
| pen | structure that connects land to water |
| pincers | paid of structures on the head that are used for smelling, feeding, and protection |
| plankton | natural plant food source that grows in water |
| pond | contained water area surrounded by human build dams and levees |
| ppt | parts per thousand |
| production cycle | the time for young aquatic species to reach full market size |
| production intensity | assurance that the size of the body of water will hold the appropriate amount of food sources and be large anough for a high production level of products |
| raceways | long and narrow water structures with flowing water |
| sac fry | yolk sac attached to the fry for a day after they hatch |
| salinity | the amount of salt in the water |
| saltwater | water with a salt content of at least 16.5 ppt |
| scales | individual segments that comver the body and act as skin |
| slurry | soft soup like substance fed to fish |
| smolt | immature salmon greater than one inch in size |
| spawn | group of fish eggs in a nest |
| spawning | breeding or reproduction in fish |
| spring | natural opening in the earth the provides a clean water source |
| surface water runoff | excess water drainage from rainfall or precipitation |
| swim bladder | structure that acts like a small balloon that inflates and gives the fish buoyancy to float and balance in all levels of water |
| swim bladder disorder | condition common in goldfish and koi that causes difficulty swimming to the surface and in depths of water |
| tail | part of the body containing the caudal fin that allows movement and guidance in the water |
| tank | large round areas of water |
| topical | applied to the outside of the body |
| trunk | part of the body that contains the body, fins, and anus |
| univalve | mollusks with one shell or part of a shell |
| valve | structure in mollusks that act liks gills |
| vat | smaller, circular areas that hold water |
| vertebrates | animals with a backbone |
| warm water | water between 65-86 degrees |
| water facility | areas built to house aquatic animals in natural environments |
| well water | water pumped from aquifers from deep within the earch where water occurs naturally |
| whitespot | nickname for ich |
Created by:
tromanczak
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