Northern Prawn Fishery Data Summary 2012



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Arnhem


Banana prawn catches in the Arnhem area increased from 243 t in 2011 to 305 t in 2012. Catches of tiger prawns decreased from 8 t in 2011 to 5 t in 2012. Two tonnes of endeavour prawns were caught in 2011, with none caught in 2012 (Figure 44). Banana prawns dominated the catch for 2012, contributing to 98% of the catch (Figure 45).
Effort in the banana fishery increased from 98 days in 2011 to 102 days in 2012 (Figure 46a). CPUE of banana prawns increased from 2.473 t per day in 2011 to 2.994 t per day in 2012 (Figure 46b). Effort in the tiger prawn fishery decreased from 48 days in 2011 to 22 days in 2012 (Figure 46a). Nominal and effective CPUE of tiger prawns increased from 0.207 and 0.086 t per day respectively in 2011, to 0.221 and 0.087 t per day in 2012 (Figure 46c).


Figure 44: Catch by species in the Arnhem area between 1995 and 2012.



a)

b)



Figure 45: (a) Percentage catch of prawn species in the Arnhem area during 2012 and (b) percentage catch of prawn species in the Arnhem area from 1995 to 2012.

Figure 46a: Effort for the banana and tiger prawn fisheries in the Arnhem area between 1995 and 2012.


Figure 46b: Catch rate for the banana prawn fishery in the Arnhem area between 1995 and 2012.


Figure 46c: Nominal and effective catch rate for the tiger prawn fishery in the Arnhem area between 1995 and 2012.



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