Screen 4: Reference data detail for: EMW-84 (reference id: 4 )

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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-844Baird's slickheadBaird's slickheadAlepocephalus bairdii1,692.712,430.50BothAverage weight ("average","mean")NONEAn estimated mean weight was calculated from data in table 6.15.

P40 Discards from French vessels landing in Scotland sampled by FRD Marine Laboratory (hauls at depths >500m)

Alopocephalus bairdii

No/hour: 58.03
Weight/Hour: 105.89 Kg

No/hour: 74.75
Weight/Hour: 126.53 Kg

1999 No/hour: 102.09
Weight/Hour: 248.13 Kg

Gives mean weight: 1824.75 g, 1692.71 g, 2430.50 g respectively for 1997, 1998 and 1999. From this an estimated mean weight range of 1692.71 - 2430.50 is taken.

Calculation detail
"Report of the Working Group on the Biology and Assessment of of Deep-Sea Fisheries Resources Horta, the Azores, Portugal 4-10 April 2002".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.

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