Screen 4: Reference data detail for: EMW-279 (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 Species Summary (external site)Species not given ind
EMW-2792Narrow-barred Spanish mackerelNarrow-barred Spanish mackerelScomberomorus commerson5,750.005,750.00BothAverage weight ("average","mean")NONE“Scomberomorus commerson…

In 1998, a catch of 36 t of king mackerel was reported by commercial fishers, while about 43 t was reported by recreational ski-boat fishers and spearfishers. Although many fishers do not report their catches, these figures give some idea of the large amount of king mackerel caught... The average weight of the fish taken in the fishery is 5.5 kg for males and 6 kg for females.”
The mean of the male and female average weight (5.5 Kg and 6 Kg) is taken as the estimated mean weight: 5750.00g.“Coastal and Marine Life - Animals:Vertebrates – fishes”
“South African Coastal Information Centre”
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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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