{"id":31078,"date":"2014-09-18T19:41:25","date_gmt":"2014-09-18T17:41:25","guid":{"rendered":"https:\/\/oneearth-oneocean.com\/2014\/09\/18\/the-effect-of-fine-scale-sampling-frequency-on-estimates-of-beach-litter-accumulation\/"},"modified":"2022-12-20T22:28:51","modified_gmt":"2022-12-20T21:28:51","slug":"the-effect-of-fine-scale-sampling-frequency-on-estimates-of-beach-litter-accumulation","status":"publish","type":"post","link":"https:\/\/oneearth-oneocean.com\/en\/research-en\/2014\/the-effect-of-fine-scale-sampling-frequency-on-estimates-of-beach-litter-accumulation\/","title":{"rendered":"The effect of fine-scale sampling frequency on estimates of beach litter accumulation"},"content":{"rendered":"
Peter G. Ryan, Annerie Lamprecht, Debbie Swanepoel, Coleen L. Moloney,\nThe effect of fine-scale sampling frequency on estimates of beach litter\naccumulation, Marine Pollution Bulletin, Available online 16 September\n2014, ISSN 0025-326X, http:\/\/dx.doi.org\/10.1016\/j.marpolbul.2014.08.036<\/a>.\n(http:\/\/www.sciencedirect.com\/science\/article\/pii\/S0025326X14005888<\/a>)\nAbstract: The effect of sampling frequency on estimates of the rate of\nlitter accumulation was determined for two South African sandy beaches.\nAfter initial cleaning, all manufactured items >10 mm diameter were\ncollected in alternating bouts of daily or weekly cleanups. Daily\nsampling collected 2.5 (range 2.1?3.4) times more litter items than\nweekly samples and 1.7 (1.3?2.3) times more litter by mass. Low density\nitems such as foamed polystyrene showed a greater differential (4?5\ntimes more items from daily sampling), presumably due to faster turnover\nof lightweight litter items. Variation in weekly samples was not\nconsistently less than daily estimates, suggesting that less frequent\nsamples only partly integrate short-term fluctuations in litter\ndynamics. Researchers using beach accumulation data to infer trends in\nnearshore marine litter, or to assess the efficacy of litter mitigation\nmeasures, need to ensure consistency in sampling frequency.\nKeywords: Stranded debris; Plastics; Sample rate; Accumulation;\nMeta-analyses; South Africa<\/pre>\n","protected":false},"excerpt":{"rendered":"
Peter G. Ryan, Annerie Lamprecht, Debbie Swanepoel, Coleen L. Moloney, The effect of fine-scale sampling frequency on estimates of beach litter accumulation, Marine Pollution Bulletin, Available online 16 September 2014, ISSN 0025-326X, http:\/\/dx.doi.org\/10.1016\/j.marpolbul.2014.08.036. (http:\/\/www.sciencedirect.com\/science\/article\/pii\/S0025326X14005888) Abstract: The effect of sampling frequency on estimates of the rate of litter accumulation was determined for two South African sandy beaches. After initial cleaning, all manufactured items >10 mm diameter were collected in alternating bouts of daily or weekly cleanups. Daily sampling collected 2.5 (range 2.1?3.4) times more litter items than weekly samples and 1.7 (1.3?2.3) times more litter by mass. Low density items such as foamed polystyrene showed a greater differential (4?5 times more items from daily sampling), presumably due to faster turnover of lightweight litter items. Variation in weekly samples was not consistently less than daily estimates, suggesting that less frequent samples only partly integrate short-term fluctuations in litter dynamics. Researchers using beach accumulation data to infer trends in nearshore marine litter, or to assess the efficacy of litter mitigation measures, need to ensure consistency in sampling frequency. Keywords: Stranded debris; Plastics; Sample rate; Accumulation; Meta-analyses; South Africa<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3504,3458,3423,3508],"tags":[1585,3535,3606],"yoast_head":"\nThe effect of fine-scale sampling frequency on estimates of beach litter accumulation - One Earth - One Ocean e. 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(http:\/\/www.sciencedirect.com\/science\/article\/pii\/S0025326X14005888) Abstract: The effect of sampling frequency on estimates of the rate of litter accumulation was determined for two South African sandy beaches. After initial cleaning, all manufactured items >10 mm diameter were collected in alternating bouts of daily or weekly cleanups. Daily sampling collected 2.5 (range 2.1?3.4) times more litter items than weekly samples and 1.7 (1.3?2.3) times more litter by mass. Low density items such as foamed polystyrene showed a greater differential (4?5 times more items from daily sampling), presumably due to faster turnover of lightweight litter items. Variation in weekly samples was not consistently less than daily estimates, suggesting that less frequent samples only partly integrate short-term fluctuations in litter dynamics. 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