Screen 4: Reference data detail for: EMW-159 (reference id: 1 )

   Help   Home
EMW idEMW ref. idFAO species categorySpeciesScientific nameLower EMW (g)Upper EMW (g)Reference indicates lower or upper EMW figure?EMW MethodSimilar species EMW idLength-weight calculations*** Fish Size Quote ****** Explanatory Notes ***Link to reference (external site)Reference documentReference url (or book)Link to Species Summary (external site)Species not given ind
EMW-1591Blue whiting(=Poutassou)Blue whiting(=Poutassou)Micromesistius poutassou135.00340.00BothWeight range (normal weight range)NONEMicromesistius poutassou.

“Blue whiting occasionally attain a length of about 40 cm, but 95 per cent of those taken in waters to the north west of the UK in spring are between 25 and 36 cm long, with an average length of about 31 cm. In some catches there may be a preponderance of larger or smaller fish.

"A blue whiting 31 cm long caught in spring just before spawning typically weighs about 180 g. The range is from about 135 g for a 27 cm fish to about 280 g for a 35 cm fish. In contrast, a 31 cm fish just after spawning weighs about 140 g. Rested, well fed fish caught north of Norway in the autumn weigh from about 135 g for a 29 cm fish to 340 g for a 37 cm fish. The figures all for ungutted fish.”
More info.FAO website. Title: Handling and processing blue whiting... 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.

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. Very occasionally this link displays the home page instead of the species summary page. If this happens, enter the scientific name in the 'Genus + Species' search field to search for this species.

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