Table 3
Harvesting incidents witnessed and recorded between 2004 and 2022. Harvest site numbers are displayed in Figure 2. Harvesting scale refers to the gathered effort, if <5 kg considered personal if, >5 kg commercial (witnessed estimates). Oyster number decreases have been calculated from data cited in the reference list.
| Date | Harvested sites | Harvesting scale | Oyster no. decrease | Witnessed by: | References |
|---|---|---|---|---|---|
| Sep-May 2004-05 Sep-May 2004-06 |
Island sites: 23,24,25,26,28, 29,30,31,32,33,34 Ballyreagh sites: 1,2,3 and 4 NSC sites: 11,12 and 13 Greyabbey sites: 17,18 and 19 |
Commercial Commercial Commercial and Personal Commercial and Personal |
≈100,000 >300,000 ≈50,000 ≈20,000 |
Dr. D. Smyth- Queen's University Belfast (QUB) Mr. S. Rogers- Cuan Marine Services Ltd. Dr. C. Guy- QUB Dr. L. Browne- Centre for Marine Research Portaferry. Mr. D. Rogers- Portaferry Marine Laboratory. Dr. Dai Roberts- QUB |
Smyth, 2008 Roberts et al., 2005 Smyth et al., 2009 |
| June-July 2006–07 |
Pig Island sites: 6,7 NSC sites: 11,12,13 Greyabbey sites: 18 and19 |
Commercial Personal Commercial |
≈350 ≈500 ≈800 |
Dr. A. Mahon-QUB Members of general public |
Kregting et al., 2020 Smyth et al., 2020 |
| 2008–2018 | Sites: 5–21 | Personal | ≈15,000 | Mr. D. Rogers- Portaferry Marine Laboratory. Newtownards RYA Members. North Down Kite Surfing Club. |
Smyth et al., 2020 |
| May-Mar 2019–2022 |
Sites: 5–19 Horse Island site:35 |
Commercial Commercial and Personal |
≈10,000 ≈4,500 |
North Down Kite Surfing Club. Mr. S. Rogers-Cuan Marine Services Ltd. Dr. D. Smyth- Bangor University Wales. Dr. L. Lieber- QUB Dr. L. Kregting- QUB |
Smyth et al., 2020 |
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