Pelagic Longline Fishing Procedures Gear http www panda

Pelagic Longline Fishing Procedures & Gear http: //www. panda. org

Introduction o Pelagic longlining is global Fig 2 in Lewison et al. 2004

Objectives o Describe pelagic longline process o List 1 potential impact o Describe 3 components of pelagic longline gear o List 2 types of specialized equipment you may encounter o Demonstrate ability to complete the Gear Description form

What is pelagic longlining? o Hook & line gear – uses bait to attract fish in pelagic zone o Pelagic = open ocean (usu. <250 m fishing depth) Image: http: //en. wikipedia. org/wiki/Pelagic_zone

What is pelagic longlining? o Hook & line gear – uses bait to attract fish in pelagic zone o Pelagic = open ocean (usu. <250 m fishing depth) o Primary targets: tuna, swordfish, sharks Images: Chapman 2006

What is pelagic longlining? o Hook & line gear – uses bait to attract fish in pelagic zone o Pelagic = open ocean (usu. <250 m fishing depth) o Primary targets: tuna, swordfish, sharks o Bait = fish or squid depending on target Images: Beverly 2009

What is pelagic longlining? o Hook & line gear – uses bait to attract fish in pelagic zone o Pelagic = open ocean (usu. <250 m fishing depth) o Primary targets: tuna, swordfish, sharks o Bait = fish or squid depending on target o Fishery impacts – bycatch of turtles, seabirds, sharks http: //ccma. nos. noaa. gov Nicolas Gasco F. Arocha

Data collection priorities 1. 2. 3. 4. Estimate effort for each gear deployment; Identify every individual caught on each set and assess catch condition and fate; Collect biological information on target and other identified species as requested; Record all sightings and interactions with marine mammals and sea turtles; 5. Record vessel and fishing gear characteristics.

How is gear fished? o Strategies http: //www. cpc. noaa. gov/l http: //www. meted. ucar. edu

How is gear fished? o Strategies o Deployment Photo: Kim Dietrich, Cape Town, 2010 www. montereybayaquarium. org

How is gear fished? o Strategies o Deployment o Retrieval o Video http: //www. frpboat. cn/fishing-2998. asp

Gear components - overview Dropper Basket Drawing modified from Hanrahan et al. 1997

Gear components - mainline

Gear components – gear markers Drawing modified from Hanrahan et al. 1997

Gear components branchline Leader Nylon mono (type 3) Drawing modified from Hanrahan et al. 1997 Photo: Kim Dietrich, Cape Town 2010

Snap (clip; www. leadertec. com) Swivels (Beverly 2009)

Gear components - hooks Hook image modified from Beverly 2006, 2009 Offset image: Beverly 2009

Gear components – other fish attracting devices Chemical lights Glow beads

Gear – deployment devices o Line setter o Bait caster Drawing: Bird. Life International 2010 Photo: K. Dietrich, 2012

Gear – retrieval devices o Branchline coiler o Line hauler o Mainline drum o video

Gear – seabird mitigation Australia Department of Agriculture, Fisheries & Forestry Davit / tori pole Photo: Washington Sea Grant

Gear – seabird mitigation Water cannon Streamer curtain Drawings: Bird. Life International - Bycatch Mitigation Fact Sheet 12

Gear Description Form

Image: Beverly 2009

Gear Description Form

Gear Description Form

Gear Description Form

Gear Description Form

Gear Description Form o Questions about gear or the gear form? o Practice exercise n n Groups of 2 15 minutes to complete Gear Description Form

Y 2474 00555 Gear Description Form 1 2 5 2 1 1 4 800 1 7 5 500 3 9 ~3 2. 25 1. 56 227 272 136 1 1 1 6 5 7 7 347 braided nylon

Gear Description Form Mustad j-hook 9/0 stainless Mustad X circle 16/0 X stainless 0 slight

1 4 1 1 Gear Description Form

Vessel sometimes trailed 100 m of rubber hose to deter birds. Hose was yellow & 1 cm in diameter. They also placed an orange road cone at the terminal end Gear Description Form None Branchline coiler broke on July 7 and was not repaired for the duration of the trip;

Summary o Describe pelagic longlining o What are the potential impacts of this fishery?

1 2 3 4 Drawing modified from Hanrahan et al. 1997

Summary o Describe pelagic longlining o What are the potential impacts of this fishery? o Describe 4 components of pelagic longline gear o List 2 types of specialized equipment you may encounter on pelagic longline vessels