Assessing the importance of net color as a seabird bycatch mitigation measure in gillnet fishing

Authors: 

Hanamseth, R., Baker, G.B., Sherwen, S., Hindell, M., and Lea, M.

Year: 

2017

Journal/Publisher Name: 

Aquatic Conservation: Marine and Freshwater Ecosystems

Volume (Issue #): 

28(1)

Page #s: 

175-181

Contact information: 

G. Barry Baker, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia. Email: barry.baker@latitude42.com.au
Summary: 

 The ability of little penguins (Eudyptula minor) to distinguish  differently colored netting materials was tested under controlled conditions to test gillnet color as a potential bycatch mitigation technique. Clear, green, and orange colored monofilament were tested in the form of a gillnet mimic in an enclosed tank containing 25 penguins. Orange colored monofilament line resulted in lower collision rates with the gillnet mimic (5.5%) in comparison with clear (35.9%) and green (30.8%) monofilament lines. Further testing under experimental conditions, accompanied by at-sea trials to verify effectiveness in varied light conditions is needed, as well as an assessment of the effect of gillnet color on the catch efficiency of target species.