A harmful algal bloom (HAB) is a rapid increase in the population of certain types of algae in aquatic environments, which can have detrimental effects on aquatic life, human health, and the environment. These blooms are often caused by specific strains of microscopic algae (phytoplankton), which can produce toxins harmful to marine organisms, birds, and mammals, as well as humans.

CHRNA9 is a gene that encodes the alpha 9 subunit of the nicotinic acetylcholine receptor (nAChR), a type of receptor that is part of the larger family of ligand-gated ion channels. This particular receptor plays a crucial role in the nervous system by mediating synaptic transmission and influencing neuronal excitability.

Marine mucilage is a gelatinous substance produced by various marine organisms, particularly phytoplankton, bacteria, and certain macroalgae. It consists primarily of organic compounds, including polysaccharides and proteins, and can accumulate in marine environments under specific conditions.

Marine vertebrates are animals that possess a backbone (vertebral column) and live primarily in ocean or sea environments. This group includes a diverse range of species that are adapted to marine habitats. The main classes of marine vertebrates are: 1. **Fish**: This group includes both bony fish (Osteichthyes) and cartilaginous fish (Chondrichthyes), such as sharks and rays. Fish are the most diverse and abundant group of marine vertebrates.

Minimum depth of occurrence (MDO) typically refers to the shallowest depth at which a particular species or resource is found in a given environment, such as aquatic ecosystems, geological formations, or geographical areas. In ecology and environmental science, understanding the minimum depth of occurrence can provide insights into species distribution, habitat preferences, and ecological relationships.

The "Rossby whistle" refers to a phenomenon related to the dynamics of fluid motion in geophysical contexts, particularly in atmosphere and oceanography. It is associated with Rossby waves, which are large-scale waves in a rotating fluid, such as the Earth's atmosphere and oceans, caused by the Coriolis effect due to the planet's rotation.

Seawater is water from the world's oceans and seas, characterized primarily by its high salt content. On average, seawater has a salinity of about 35 parts per thousand (ppt), meaning that in every liter of seawater, there are approximately 35 grams of dissolved salts, mainly sodium chloride (table salt). Other components of seawater include various minerals, dissolved gases (such as oxygen and carbon dioxide), organic matter, and microorganisms.

The Tasman Outflow refers to a significant oceanic current that flows out of the Tasman Sea, which is located between Australia and New Zealand. This current plays an important role in the regional oceanography of the southwestern Pacific Ocean. Key characteristics of the Tasman Outflow include: 1. **Source of Water**: It originates from the warm, tropical waters of the Coral Sea and is influenced by the East Australian Current (EAC), which flows south along the eastern coast of Australia.

Tideline can refer to a couple of different concepts based on the context: 1. **Geographical Term**: In a geographical sense, a tideline is the line along a beach or shoreline created by the highest level that the tide reaches. It is often marked by the presence of seaweed, debris, or changes in sand texture. 2. **Business or Organization**: Tideline may also refer to specific companies or organizations, particularly those focused on environmental, marine, or coastal issues.

Undertow refers to the strong water currents that occur beneath the surface of waves as they break on the shore. When waves crash onto a beach, they can create a flow of water that moves back toward the ocean. This flow is often strongest just below the surface and can pull sand and debris with it, creating a current that can be hazardous for swimmers.

Wind-generated current refers to the flow of water in oceans, seas, or other bodies of water that is influenced by wind. This phenomenon arises primarily from the interaction between wind and the water's surface. The following are key components that explain how wind generates currents: 1. **Wind Shear**: The wind exerts friction on the surface of the water as it blows across it. This friction can transfer energy from the wind to the water, creating surface currents.

Fergus W. Campbell is not widely known as a significant public figure, and there may be multiple individuals with that name.

The interstimulus interval (ISI) is the time interval between the presentation of one stimulus and the next stimulus in an experimental setting. It is a crucial parameter in various fields of psychology and neuroscience, especially in studies involving sensory perception, attention, and learning. In experimental designs, the ISI can influence how subjects process stimuli, as it can affect attention, memory encoding, and the ability to discriminate between stimuli.

The Kruithof curve is a graphical representation that illustrates the relationship between the color temperature of light sources and the perceived brightness or illuminance of those sources. It helps to guide the selection of lighting based on the combination of color temperature (measured in Kelvin) and the illumination level (measured in lux). The curve itself indicates that: 1. **Lower color temperatures (warm white light)** can create a pleasant atmosphere at lower illumination levels (e.g., around 200 to 300 lux).

In psychophysics, "roughness" refers to a quality of texture perception that pertains to how coarse or fine a surface feels to the touch. This can involve both tactile sensations and auditory perceptions, particularly in music and sound quality. 1. **Tactile Roughness**: This aspect relates to how the skin perceives surface textures. It is influenced by factors like the size, spacing, and geometry of the surface features.

Martha Jenks Chase may refer to a specific individual or a historical figure, but there is limited widely available information about someone by that full name. It could also represent a place, a company, or an organization in a specific context. If you have more context, such as the field or topic related to Martha Jenks Chase (e.g.

Mel Odom is an American artist and illustrator known for his work in various fields, including fine art, children's book illustration, and comic book art. He has created artwork for a range of publications and projects, often noted for his distinctive style and ability to capture a sense of whimsy and emotion in his illustrations. Odom has also been involved in the toy industry, designing action figures and other collectibles, notably with brands like Barbie and other Mattel properties.

"Winx Club" is an animated television series that originated in Italy, created by Iginio Straffi. The show first premiered in 2004 and quickly gained popularity around the world. It follows the adventures of Bloom, a young girl from Earth who discovers that she has magical powers and is a fairy. She joins a group of other fairies at the Alfea College for Fairies in the Magical Dimension.

"Child's Play" is a horror franchise that primarily revolves around a possessed doll named Chucky, who is the soul of a serial killer named Charles Lee Ray. The franchise began with the release of the original "Child's Play" film in 1988, directed by Tom Holland and written by Don Mancini.