Screen 4: Reference data detail for: EMW-7 (reference id: 1 )

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EMW idEMW ref. idFAO species categorySpeciesScientific nameLower EMW (g)Upper EMW (g)Reference indicates lower or upper EMW figure?EMW MethodLength-weight calculations*** Fish Size Quote ****** Explanatory Notes ***CountryLink to reference (external site)Reference documentReference urlLink to Species Summary (external site)
EMW-71American yellow perchAmerican yellow perchPerca flavescens227.00227.00BothAverage weight or weight rangeNONETable 2. Summary of Aquaculture Products Sold by Species and Size Category, United States: 2005.

Food fish: Perch, yellow. Live weight (pounds): Average 0.5.
All USA production for yellow perch in 2005 is for Perca flavescens.

0.5 pound = 453.59 grams.
USAMore info.Census of Aquaculture (2005), USDA.

Table 2, Food fish
More infoMore info.

This screen gives details for an individual reference obtained in estimating a mean weight for this species.

The information obtained from this reference to derive an estimated mean weight is in the *** fish size quote *** and/or *** Explanatory notes *** column. Note that you may need to search the document using key words in the '*** Fish Size Quote ***' or *** Explanatory notes *** column to find the relevant fish size data. To view the reference document itself (if available online): scroll right and click on 'More info' in the 'Link to reference' column, if available. If the reference has moved, you may find it by entering part/all of the title into google.

Where the information obtained from the reference is a fish length, the calculations performed to obtain a weight may be viewed by clicking on 'More info' in the 'Length-weight calculations' column.

To view the 'Species Summary' page on for this species, click on 'More info' in the 'Link to Species Summary ' column.

For explanation of the columns in the above table click on Help