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

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Presentation on theme: "Blue Marine Foundation Lyme Bay Potting Experiment Prof Martin J Attrill Director, Plymouth University Marine Institute."— Presentation transcript:

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 Static Gear What is the impact of increased static gear fishing effort? Set maximum levels to allow survival of local small boat fishermen?

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): No potting 50 pots 20 pots5-10 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


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