Ichthyological terms, not general ones.
Commercially-produced, dried, food for fishes compressed into a hard, pelleted form. Usually comprises a combination of macro nutrients, trace elements and vitamins and may contain additional colour-enhancing, medicative or vegetable additives. Available in a range of grain sizes and brands.
Used in 56 profiles
Any of the appendages of a decapod that are used for walking and gathering food.
The duration of an organism's daily exposure to light; the period of daylight in each 24-hour cycle.
Migratory within freshwaters such as rivers or streams.
Deliberate release of an organism or group of organisms into an area or habitat previously inhabited by the taxon but from where it has been lost. Primarily carried out for conservation purposes using specimens taken from captivity or relocated from a different area.
Used in 5 profiles
Production of offspring via a sexual or asexual process.
Used in 111 profiles
The inability of two or more groups of organisms to interbreed due to the existence of geographical, behavioral, physiological, or genetic barriers. These can be further separated into those being active pre- or post-copulation.
Division of eukaryotic algae containing thousands of species, most of which are multicellular and inhabit marine environments, e.g., many seaweeds.
Used in 3 profiles
Neurotoxin found in many species of puffer fish. Lethal to humans.
Used in 7 profiles
The lower part of the body that lies in front of the cloaca and contains the digestive and reproductive organs; also referred to as the belly.
Used in 60 profiles
Adaptation to a new climate or environment. Used in reference to the process of slowly introducing an animal to a new environment, e.g., when adding new fish or invertebrates to an aquarium. Same meaning as acclimatisation.
Used in 35 profiles
Processed, porous, highly adsorptive form of carbon also known as activated charcoal or active carbon. Used in aquaria to remove toxins such as chlorine, chloramine, some heavy metals, and especially organic molecules, but exerts no action on ammonia, nitrite, nitrate, phosphate or inorganic salts. Since it has a finite surface area it requires periodic replacement if employed long-term, and should be removed if a tank is being treated as it will remove most medications. Cannot be 'recharged' by heating in a microwave or domestic oven.
A muscle whose contraction moves a limb or other part of the body towards the midline of the body or other part.
Used in 7 profiles
Type of connective tissue composed of cells specialised for production and storage of fat globules. The principle means of fat storage in the animal body.
Used in 5 profiles
A genus of rod-shaped, gram-negative bacteria found in fresh and salt water, soil, and sewage. Various species affect fishes while others are pathogenic to amphibians, reptiles, and higher animals including humans.
To pass a hot period of the year in a dormant condition, as seen in African lungfishes for example.
Used in 2 profiles
Series of water bodies mostly located in the East African rift including some of the oldest and deepest in the world, specifically lakes Victoria, Tanganyika, Malawi, Turkana, Albert, Kivu and Edward.
Processed piece of porous stone, glass, limewood, ceramic or synthetic material that is attached to the end of a length of airline and used to diffuse air into an aquarium in order to increase aeration. Available in a large range of shapes and sizes.
Used in 87 profiles
The passage (including the oesophagus, stomach, and intestines when present) along which food passes through the body from mouth to anus.
Measure of the buffering capacity of a given water body, i.e. its capacity to neutralize acids and bases thereby maintaining a fairly stable pH. Water containing compounds, such as bicarbonates, carbonates, and hydroxides has a stronger such capacity and is referred to as hard water, while water lacking or deficient in them is termed soft water. Soft water aquaria tend to be susceptible to pH crashes if not maintained correctly.
Used in 6 profiles