Artificial habits

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Artificial habits

Miguel Ángel reyes robles

Liceo de Apodaca t e c h n o l o g y

Artificial habits:

Artificial habitats are those who spoke the man's hand and have been modified significantly to the activity of the same.

Also considered artificial habitats are literally those who "created" by man, like a goldfish or a zoo

artificial aquatic habits

Natural habitats are always preferable to artificial habitats as they generally contain more species. However, some artificial habitats may also increase the abundance and/or diversity of habitat and fish in an area. Examples of artificial habitats include rock grayness, jetties, wharf pylons, oyster lease cultivation structures, shipwrecks and impoundments. Purpose built habitats such as Artificial reefs, wetlands, Fish Aggregating

Devices(FADs) and artificial sea grass units also provide shelter for many invertebrate and fish species. Artificial reefs often substitute for natural rocky reefs by offering shelter and attachment sites for a range of benthic organisms. In the past, NSW DPI was instrumental in the construction of the Narrated artificial reefs, comprising a number of scuttled ships located over sand substrate in approximately 50m of water. As well, a number of smaller tire reefs were trialed as artificial habitats in Port Hacking and Lake Macquarie, with limited success.

Artificial reefs can also pollute the environment, depending on the materials used for their construction. Their placement is also important to ensure that they do not sink, become buried over time, move or become a hazard to navigation, commercial fishing, SCUBA divers or other water users

Pros “n “ cons

Pros

 Artificial reefs take control of a natural feature of the ocean landscape for human and aquatic aims. Natural reefs have as much biodiversity as rain forests, so one way to promote the biodiversity of the ocean is to build reefs where life can prosper. The erosion of natural reefs, through man-made or natural causes, creates a need for aquatic habitats that artificial reefs can fill. A healthy ocean can rebuild fish populations and help create a sustainable fishing industry.

Plus, artificial reefs, like natural ones, are beautiful places to visit, teeming with exotic life; they can help tourist trades and give people an opportunity to see an underwater world.

Cons

 Building reefs is controversial, however, because many conservation groups, such as the Ocean Conservancy, oppose their construction. Their concerns are legion: the material used in the artificial reef will contaminate the environment by rusting or releasing toxins; countries and businesses can use the excuse that they are building an artificial reef when they leave their junk in the ocean; creating an artificial reef may harm an environment filled with life that's already there; artificial reefs tend to concentrate large populations of fish in one area, which may lead to overfishing.

Attraction or Production of Fishes by

Artificial Habitats? A Review

For decades the role of artificial habitats has been to increase the artisanal catch of different species of fish for local consumption. Now with the implementation of better technology, these habitats have become a valuable tool for environmental management. However, there are still many questions about the role of artificial habitats as productive entities capable of establishing equilibrium with their environment, or whether their role is to become attractive to local populations of organisms from natural reefs nearby, encouraging the redistribution of populations and increasing the susceptibility to fishing mortality and/or natural mortality. Research indicates that artificial habitats stimulate the production of fish to increase total biomass in the ecosystem, but some assessments that support this hypothesis do not take into account aspects of population dynamics and ecology of species that colonize these habitats, as well as the influence of physic-chemical parameters in these habitats to support more strongly the hypothesis of production. This leaves a gap for the attractive hypothesis to explain and determine the effects, which may have the placement of these habitats in the range of populations that colonize it. Also, it is suggested that these habitats can be good tools to test hypotheses on the maintenance of existing diversity in the natural reefs based on different aspects, such as recruitment and competition in fish. This work discusses various aspects of experimental trials that have used these strategies and their usefulness to the preservation and sustainable use of ecosystems.

sea snakes of the genus Laticauda (Fig 1.) are not entirely aquatic – not only must they regularly return to the surface to breath, but they also reproduce on land. They hunt in relatively shallow water, searching among rocks and coral for suitable prey such as crabs and small fish which they paralyse using their venom; they are in fact among the most lethally venomous of snakes, but are not normally aggressive towards humans. They can be rather inquisitive though, which can lead to some unnerving moments for SCUBA divers (it can be quite a shock to notice a venomous snake swimming happily around your legs).

http://wiki.answers.com/Q/What_is_artificial_habitat http://www.dpi.nsw.gov.au/fisheries/habitat/aquatic-habitats/artifical http://www.ehow.com/list_6001897_pros-cons-artificial-reefs.html

http://onlinelibrary.wiley.com/doi/10.1111/j.1095-

8649.2007.01336.x/abstract;jsessionid=6333D7C52D9CD1FE4BDA64AD81EE8

371.d02t04?deniedAccessCustomisedMessage=&userIsAuthenticated=false http://procs.gcfi.org/pdf/gcfi_62-8.pdf

Are places were animals live and were created by humans

Artificial reefs take control of a natural feature of the ocean landscape for human and aquatic aims

Artificial habits

Artificial aquatic habits

Pros & contras

Helps to save animals that their habits are destroyed

Protect species that their habits were destroyed by humans or naturalment heir concerns are legion: the material used in the artificial reef will contaminate the environment

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