Flashcards in Exam 2 Vocab Deck (39):
A creature that is most active naturally at dawn or dusk.
A primitive life form, having some characteristics of algae and bacteria but regarded as different from both. Often called slime algae or blue-green algae.
A mains water filter that uses several purifying ion-exchange resins. It removes impurities from ordinary house-hold water.
Meaning “close to the sea floor”. Demersal eggs are heavier than water and are laid in prepared spawning sites on the seabed. The fertilized eggs are then guarded by one or both adults until hatching occurs.
The process in which nitrate is changed by anaerobic bacteria into nitrous oxide and then into free nitrogen gas.
Unwanted evident waste matter that may build up on the substrate.
Another name for an airstone.
A creature that is naturally active during the hours of daylight.
A single vertical fin on a fish’s back; some fish have two dorsal fins, one behind the other. Many marine species have venomous rays in the dorsal fin
A device that enables pieces of food to be held in the aquarium for individual fish, encouraging them to take pieces. Useful for potentially dangerous species
An animal (fish or invertebrate) that sifts water for microscopic food, e.g. pipefish, tubeworms.
Used in filtration systems to remove dissolved or suspended organic substances from water.
A biological filtration method. Unclean water is pumped through a cylinder containing millions of tiny “beads” on which nitrifying bacteria have become established.
A Method of separating proteinous substances substances from water by foaming action. Also called protein skimming.
Very young fish (see also larvae)
Trematode parasites, such as Dactylogyrus.
Membranes through which fish absorb dissolved oxygen from the water during respiration.
Small crustaceans used as livefood for some saltwater fish.
Plastic mesh fitted between layers of gravel to protect biological filtration system from being exposed (and thus rendered ineffective) by borrowing fish.
Plant matter provided as food. May refer two vegetables such as peas or lettuce.
A combined unit for regulating water temperature in the aquarium, consisting of a heater and thermostat, sealed within a glass tube.
A device for measuring the specific gravity (SG) of water, especially vital when making up synthetic saltwater mixes. May be either free-floating or swing-needle type.
Attracted to water.
A Relatively common parasitic problem seen in marine fish, also known as “white spot” because of the tiny white spots that develop over the body and fins
An electrically driven propeller that produces water flow through filters.
A creature without a vertebral column, which forms the backbone.
And aquarium that houses invertebrates, but no fish.
A young individual that often may display markedly different coloration than adult fish of the same species.
A means of measuring the hardness of water, in degrees on the KH scale.
Marine crustaceans with the shrimp like appearance.
(1) The first stage of fish development after hatching; underdeveloped fish fry. (2) the first reproductive stage of many invertebrates.
A line of perforated scales along the flanks of fish, connected to a pressure-sensitive nervous system, used to detect vibrations in the water.
Invertebrates used specifically as fish food, although they may not be of marine origin, and might have been preserved, E.G. frozen.
Seaweedlike algae, which are clearly visible to the naked eye.
An organism that causes cottonwool-like growths on the body. May be linked with a bacterial infection or a Traumatic injury.
General term for food that is of animal rather than plant origins. It rarely describes meat as such in the case of marine fish diets.
A group of islands that are in the Oceania group, lying to the south of Micronesia. Includes new guinea the Solomon Islands, Vanuatu, and Fiji as well as New Caledonia.