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Screen 4: Reference data detail for: EMW-210 (reference id: 2 )

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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 FishBase.org Species Summary (external site)Species not given ind
EMW-2102CapelinCapelinMallotus villosus16.9622.25BothAverage weight ("average","mean")NONECapelin.

From fishbase.org, all common names of "capelin" refer to Mallotus villosus with the exception of one French one. “Capelin” in this reference is assumed to mean Mallotus villosus.

An estimated mean weight range was calculated from data in tables 5.2.2 and 5.2.3.

P8 Table 5.2.2 “Total international catch of capelin in the Iceland-East Greenland Jan-Mayen area by age group in numbers (billions) and the total catch by numbers and weight (thousand tonnes) in the autumn season (August-December) 1982-2003”
and
table 5.2.3 “Total international catch of capelin in the Iceland-East Greenland Jan-Mayen area by age group in numbers (billions) and the total catch by numbers and weight (thousand tonnes) in the winter season (January-March) 1982-2004”.

From this data a mean weight was calculated for 1999, 2000, 2001, 2002 and 2003 as 16.96 g, 18.72 g, 20.45 g, 22.25 g and 17.40 g respectively. From this an estimated mean weight range of 16.96 - 22.25 was taken.

Calculation detail
More info.“Capelin in the Iceland-East Greenland Jan-Mayen area”
ICES website
More infoMore info.2

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 fishbase.org for this species, click on 'More info' in the 'Link to FishBase.org Species Summary ' column. Very occasionally this link displays the fishbase.org home page instead of the species summary page. If this happens, enter the scientific name in the 'Genus + Species' search field to search fishbase.org for this species.

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