Essay on Native Species Of The Asian Carp

Essay on Native Species Of The Asian Carp

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1. Privet plant and different species of the Asian carp fish depict two instances when non-native species which were introduced in Tennessee causing problems. Privet is a flowering plant native to Europe, Asia and North Africa (“Non-native Invasive Plants”). It has been introduced to grow as a hedge [boundary]. But, this plant once planted can take over the native plants and grow in dense groups. Currently, the Great Smoky National Park crews work up to “550 work hours each year” to remove privet plants (“Non-native Invasive Plants”). Different species of Asian carp were introduced in the United States in “1970” for aquaculture purposes, but were unintentionally introduced into the rivers when some escaped from the original ponds (“Asian carp in Tennessee”). Some of the types of the Asian carp which migrated to Tennessee are “grass carp, bighead carp, and silver carp”. One of species, silver carp eat “microscopic algae and zooplankton,.” But zooplankton is part of the diet for many native fish species, which results in competition for food and space with the native species. To raise awareness, the Tennessee Wildlife Resource Agency (TWRA) posted “signs at boat ramps and handed out Asian carp watch cards”. They plan to use commercial fishing as a way to remove these fish species from the rivers (“Asian Carp in Tennessee”).
2. Non-native species can compete with other native species for food, water, and space. Sometimes these results can cause imbalances in the food chain and disturb an ecosystem. Caulerpa “can displace native algae” and can have
“[negative] impacts [on] the coastal ecosystem” ("Caulerpa taxifolia"). Measures can be taken to decrease the spread of this seaweed, some of them could be raising awareness, reintroducing...


... middle of paper ...


...damage, native species competing for food and space.
Discussion questions:
1. Bio-terrorism is surely possible as it easy for someone to secretly introduce a foreign species.
2. If the codes and regulations of which foreign species can be imported into country are strict, then it would be not possible. But if they were not as strict, then it would be possible.
3. Some ways of bio-terrorism could include introducing foreign species or pests which can cause damage to agriculture which can result in decreased food production, resulting famine, other foreign species which can endanger or threaten the survival of the native species.
4. We could protect our environment by placing even stricter importing regulations, pre evaluating the risks or the side effects before introducing the foreign species, requiring a safety environmental check when importing non-native species.

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