Screen 4: Reference data detail for: EMW-142 (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 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-1421Blackmouth catsharkBlackmouth catsharkGaleus melastomus64.84279.78BothAverage weight ("average","mean")NONEAn estimated mean weight was calculated from data in table 1.

Table 1 – catch data from sampling cruises for Galeus melastomu – gives weight and numbers of individuals by survey for surveys in 1994-1999 and 2001-2002.

Mean weight per survey ranges from 64.84 - 279.78 g for surveys in years 1997-2002 (latest 5 years). From this an estimated mean weight of 64.84 - 279.78 g is taken.

Calculation detail
More info.“Distribution and Biology of the Blackmouth Catshark Galeus melastomus in the Alboran Sea (Southwestern Mediterranean)” off “The e-Journal of Northwest Atlantic Fishery Science” websiteMore 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