Read this excerpt from a passage and the works cited entry for the source listed below the excerpt.
According to NOAA, global aquaculture currently supplies about fifty percent of all seafood produced for human consumption ("Basic Questions" 4). This number is growing, and it will continue to increase. United States aquaculture meets only five to seven percent of the domestic demand for seafood ("Basic Questions" 13). Most farmed fish is from Asia...While aquaculture lags overall in the United States, fish farms can now be found in all fifty states. States with the largest production of marine aquaculture are Maine, Washington, Virginia, Louisiana, and Hawaii. The largest freshwater producers are Mississippi and Idaho ("Basic Questions" 14).
"Basic Questions about Aquaculture." NOAA Fisheries. National Marine Fisheries Service / National Oceanic and Atmospheric Administration, 12 Jan. 2012.
What is one reason that this is a credible source?
The evidence in the article is anecdotal and gives the reader good information.
The cited article was produced in cooperation by two government agencies.
The article was not published in a scholarly journal, so it is actually not credible.
The article uses numerical statistics, which can always be trusted.