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Decline in Saltwater Fish Population

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by

aubrey boas

on 26 January 2015

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Transcript of Decline in Saltwater Fish Population

Claim
The saltwater fish population is declining and the policy we should put in place to stop the fish population decline is to limit the number of trips a commercial fisherman can take per season
Evidence (claim)
Table 7.9 Information about selected fish population found around the Florida coast shows the population of fish (in pounds) from 1982 to 2009. This supports the claim
"The Saltwater Fish population is declining" because
it shows the Gulf Coast fish population declining from about 25.5 million pounds in 1982 to about 11.5 million pounds in 2009. It also shows the Atlantic Coast population of saltwater fish declining from about 5 million pounds in 1982 to about 2 million pounds in 2009.
Justification
We could not find any data supporting the policy to
"limit the number of trips a commercial fisherman can take per season"
but we did find data that showed an increase of the fish population after the U.S. required catch limits on species like Alaskan pollock and Caribbean queen conch. Since then we have seen the population increase.
Decline in Saltwater Fish Population
Question
Is our saltwater fish populations declining? If so, what policies would be most effective in slowing the decline?
Table 7.9
Evidence (policy)
Tables 7.1 and 7.2 show the average pounds per trip and the number of trips per season a commercial fisherman would take from the years 1999 to 2009 for 6 different species of fish that live in the Atlantic and Gulf coast of Florida. These tables support the Policy to
"limit the number of trips a commercial fisherman can take per season"
because it shows that a fisherman in 2009 will have to take more trips and/or catch less fish then a fisherman fishing in 1999. One example of this was for the Atlantic Croaker. Table 7.1 shows that in 1999 a commercial fisherman would only have to take 17 trips to get an average of 4591 lbs of fish per trip but in 2008 he same fisherman would take 18 trips and only get an average of 2376 lbs of fish per trip. This shows a decrease of fish on the coast and a need for the policy because the amount of fish they caught in 2008 is about half has much then in 1999.
Ecology and human impact on the environment
Information About Selected Fish Populations Found Around the Florida Coast
Table 7.1
Table 7.2
Full transcript