Understanding Fish Population Dynamics and Sustainable Fishing

Population Definition

A population is a set of individuals of a species that lives in a particular habitat, exhibits the same biological behavior, and is kept in balance with the environment. Within a population, there is competition between individuals for food and favorable reproduction ratios. An area typically hosts multiple populations of different species that are interrelated, often forming part of a food web. If we consider the volume of each population, we can analyze the proportion of individuals

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Earth Science: Processes, Layers, and Environmental Impact

Filtration

Filtration is used to separate solid and liquid components in heterogeneous mixtures, such as in sewage treatment.

Settling

Settling separates heterogeneous mixtures of liquids with different densities, such as water and oil.

Evaporation and Crystallization

Evaporation and crystallization are used to separate solutions of solid and liquid components, for example, in a saline solution.

Distillation

Distillation separates solutions of liquid components, such as in perfumes and alcoholic beverages.

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Volcanoes and Earthquakes: Formation and Types

Volcanoes

A volcano is a geological structure from which magma (molten rock) and gases from inside a planet rise and emerge. This generally occurs in violent episodes called eruptions. A volcano is the only conduit that puts the terrestrial surface in direct communication with deep levels of the Earth’s crust. In the mantle’s depth, magma under pressure rises, creating magma chambers below or within the cracks in the rocks of the crust. The Earth’s crust provides an outlet for the intense pressure,

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Industrial Rocks and Minerals: Types and Uses

Industrial Rocks

Rocks that are exploited by their physicochemical properties, regardless of the substances and energy that may be extracted.

  • Aggregates: Formed by stones or pieces of various sizes. Used mainly in public works or construction (e.g., basalt, quarries, marble, slate, sand, gravel).
  • Agglomerates: Formed by a compact mass of material, with a cohesive agglomerating material (e.g., marble, cement, lime, gypsum, margin, clay).
  • Construction Rocks: Divided into ornamental rocks, which can be
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Geological Regions: Siliceous, Limestone, and Shale

Siliceous terrain comprises ancient rocks from the Precambrian and Primary eras. It is mostly in the western peninsula (Galicia, León, Extremadura) and has ramifications to the western part of the Cantabrian mountain range, the CS, Montes de Toledo, and Sierra Morena. It is also located in isolated areas such as the axial zone and some sectors of the Pyrenees, Iberian system, coastal mountain range, and the Catalan-Penibético system. The prevailing rock is granite, and the landscape is determined

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Types of Sedimentary Deposits and Soil Genesis

Types of Sedimentary Deposits

Lacustrine deposits: These occur when earth is moved or transported by rivers and streams and deposited on lake bottoms.

Proluvial deposits: These are materials occupying the bed of dry streams.

Fluvial deposits: These are formed by sediments that accumulate from the activity of rivers and the processes associated with gravity sliding.

Wind deposits: These are formed through the accumulation of transported material, forming dunes and sand dune materials.

EOI: A special material

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