Definition Of Fish Biodiversity
Fishing gear type sampling effort spatio temporal scale were included in the database.
Definition of fish biodiversity. They all mean the same thing but say it in different ways. Colombia and kenya for example each have more than 1 000 breeding species of birds whereas the forests of great britain and of eastern north america are home. Biodiversity underpins ecosystem function and the provision ofecosystem services. Reduction in biodiversity can affect decomposition rates vegetation biomass production and in the marine environment affect fish stocks 15 16 17 18.
Reduction in biodiversity can affect decomposition rates vegetation biomass production and in the marine environment affect fish stocks. While earth s biodiversity is so rich that many species have yet to be discovered many species are being threatened with extinction due to human activities putting the earth s magnificent biodiversity at risk. It is predicted that a. Fish systematics is the formal description and organisation of fish taxa into systems.
Controversies over arcane but important details of classification are still quietly raging. The king county comprehensive plan and the king county biodiversity report both use this definition. For each study the fish species list and information relative to sampling protocol i e. There are many ways to phrase the definition of biodiversity.
A common measure of this variety called species richness is the count of species in an area. Biodiversity underpins ecosystem function and the provision of ecosystem services. However to date biodiversity research has not been fully incorporated into mainstream fisheries science. The term fish describes any non tetrapod chordate i e an animal with a backbone that has gills throughout life and has limbs if any in the shape of fins.
Fish biodiversity dataset studies concerning the structure of fish communities in estuaries worldwide were compiled in a database. It is complex and still evolving. Biodiversity research by definition addresses heterogeneity and this should influence the nature of questions the science seeks to address and how empirical studies are designed. Wwf s 2018 living planet report found an average 60 decline in global populations of mammals fish birds reptiles and amphibians since 1970.
Biodiversity loss therefore threatens the provision of goods and services provided by ecosystems. Biodiversity also called biological diversity the variety of life found in a place on earth or often the total variety of life on earth. Biodiversity is not evenly distributed rather it varies greatly across the globe as well as within regions. The 2019 landmark global assessment report by the intergovernmental platform on biodiversity and ecosystem services reported one million animal and plant species are now threatened with extinction.
Biodiversity loss therefore threatens the provision of goods and services provided by ecosystems.