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Blue Marine Foundation Lyme Bay Potting Experiment

Blue Marine Foundation Lyme Bay Potting Experiment. Prof Martin J Attrill Director, Plymouth University Marine Institute. Lyme Bay Monitoring Programme. PUMI been monitoring recovery of reefs for last 5 years. Change in fishing activity recorded. Socio-economic analysis led by PML.

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Blue Marine Foundation Lyme Bay Potting Experiment

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  1. Blue Marine Foundation Lyme Bay Potting Experiment Prof Martin J Attrill Director, Plymouth University Marine Institute

  2. Lyme Bay Monitoring Programme • PUMI been monitoring recovery of reefs for last 5 years

  3. Change in fishing activity recorded • Socio-economic analysis led by PML Towed Gear • What is the impact of increased static gear fishing effort? • Set maximum levels to allow survival of local small boat fishermen? Static Gear

  4. The Lyme Bay experimental potting study • Marine Institute partnering BMF to deliver research component of project • 3.5 year programme to investigate impact of potting density on seabed biodiversity and target species • Investigated by setting up sixteen 500x500m experimental areas across the MPA within which fishermen will maintain set levels of fishing activity

  5. The Lyme Bay experimental potting study • Four treatments (rocky reef, similar depth): 50 pots No potting 5-10 pots 20 pots “lobster refuge”

  6. The Lyme Bay experimental potting study • Fishermen in each of the 4 ports within the MPA will be responsible for 1 set of replicates Lead researcher – Adam Rees

  7. Data collection • Towed HD video surveys • For large seabed organisms of conservation importance • Baited remote underwater video surveys • Enumerate mobile fish and invertebrates

  8. Data collection • Experimental quantitative potting • undertaken by fishermen using standard pots and time • Spillover analysis (later in study) • Assess whether any evidence of spillover from control areas

  9. Hypothetical results at survey end Threshold

  10. Thank you mattrill@plymouth.ac.uk @mjattrill www.plymouth.ac.uk/marine

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