Screen 4: Reference data detail for: EMW-443 (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-4431ThresherThresherAlopias vulpinus3,973.5710,199.18BothWeight at average length ("average of most","usual length", "length of most") using less exact length-weight relationshipsMore info."All specimens were collected in the morning hours from nets set overnight, which is the general practice of the drift gill net fishery.

Sampled sharks ranged in size from 79 cm to 237 cm FL (lengths were available for 163 sharks out of 165) with 82% between 130 and 189 cm FL"
More info."Feeding Habits of the common thresher shark (Alopias vulpinus) sampled from the California-based drift gill-net fishery 1998-1999".

"California Cooperative Oceanic Fisheries Investigations" website
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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