fishcount.org.uk

Help screen for
Estimated numbers of individuals in annual global capture tonnage (FAO) of fish species


Sort by species
This link is shown when the capture is displayed in order of capture tonnage. Click this link to display capture in alphabetical order by species.
Sort by capture tonnage
This link is shown when the capture is displayed in order of species. Click this link to display capture in order of capture tonnage.
Show All
Click this link to display the full table without pagination. This may be the best option for printing.
First Page
Click this link to display the first page of data only. You can then display the data 1 page at a time.
Last Page (Summary)
Click this link to display the last page which is a summary of the data.
Previous Page
Click this link to display the previous page when displaying 1 page at a time.
Next Page
Click this link to display the next page when displaying 1 page at a time.
Line
The sequence in the table displayed.
Species
A species or group of species reported in FAO fisheries capture statistics. Fish species only are shown.
Class
The taxonomic class to which the species contained in this FAO species category (Species) belong.
Capture (T)
Average annual capture tonnage (1999-2007) for this FAO species category (Species).
Estimated mean weight (EMW) (g)
The estimated mean weight, if any, for this FAO species category (Species).
EMW id
The id of the estimated mean weight, if any, obtained in this study for this FAO species category (Species). This is a hyperlink to Screen 2.
Generic mean weight (g)
This is used only for FAO species categories without an estimated mean weight where the EMW id will be blank. This is set to the generic estimated mean weight calculated for this Class. If none exists, then this is set to the generic mean weight for all classes. Generic mean weights are calculated from estimated numbers for Single Species with an EMW in the Totals section of this screen obtained by scrolling/paging to the end or by clicking on Last Page (Summary).
Estimated numbers (millions)
The estimated fish number range for the average annual Capture (T) for this FAO species category (Species). This is obtained by dividing Capture (T) by Estimated mean weight (EMW) (g) or by Generic mean weight (EMW) (g).