Smaller and less deep bodies of seawater that are partially enclosed by land.

A marine invertebrate group with pentaradial symmetry and tube feet.

A marine invertebrate group with a hard skeleton, ten jointed legs and a nauplius larval stage

An organism that plays a unique and crucial role in the way an ecosystem functions

What is the economic importance of macroalgae?

A measure of the species, genetic and ecosystem diversity of different species

A method to estimate the population size of mobile species

The number of species in a community

Which key group of marine organisms does belong in?

fish that have a jaw and skeleton made only of cartilage

commonly used in marine science to find out if there is a correlation between two sets of variables

Competition between individuals of the same species

The abundance and richness of a species in a given place.

Marine producers such as kelp and seaweed

The variety of forms of genes (alleles) within a species

The role of a species within an ecosystem

The variation of ecosystems or habitats on a regional or global level

The living organisms and the environment with which they interact

Planktonic consumers that are either floating or weakly swimming animals