Northern Prawn Fishery Data Summary 2012



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Sweers


Banana prawn catches in the Sweers area decreased from 379 t in 2011 to 177 t in 2012. Catches of tiger prawns decreased from 90 t in 2011 to 50 t in 2012, and endeavour prawns increased from 46 t in 2011 to 49 t in 2012 (Figure 29). Banana prawns comprised 64% of the catch for 2012, with tiger and endeavor prawns both comprising 18% (Figure 30).
Effort in the banana fishery decreased from 143 days in 2011 to 65 days in 2012 (Figure 31a). CPUE of banana prawn increased from 2.652 t per day in 2011 to 2.673 t per day in 2012 (Figure 31b). Effort in the tiger prawn fishery decreased from 281 days in 2011 to 238 days in 2012 (Figure 31a). Nominal and effective CPUE of tiger prawns for 2012 decreased slightly from 0.485 and 0.201 t per day in 2011 to 0.468 and 0.185 t per day in 2012 (Figure 31c).


Figure 29: Catch by species in the Sweers area between 1995 and 2012.



a)

b)



Figure 30: (a) Percentage catch of prawn species in the Sweers area during 2012, and (b) percentage catch of prawn species in the Sweers area from 1995 to 2012 .

Figure 31a: Effort for the banana and tiger prawn fisheries in the Sweers area between 1995 and 2012.


Figure 31b: Catch rate for the banana prawn fishery in the Sweers area between 1995 and 2012.



Figure 31c: Nominal and effective catch rate for the tiger prawn fishery in the Sweers area between 1995 and 2012.



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