Aquaculture and urban marine structures facilitate native and non-indigenous species transfer through generation and accumulation of marine debris. Issue 1 (15th October 2017)

• Record Type: Journal Article
• Authors: Campbell, Marnie L.; King, Staci; Heppenstall, Lara D.; van Gool, Ella; Martin, Ross; Hewitt, Chad L.
• Is Part Of: Marine pollution bulletin. Volume 123:Issue 1/2(2017)
• Page Start: 304
• Page End: 312
• Publication Date: 2017-10-15
• Subjects: Plastic marine debris -- Introduced marine species -- Alien species -- Exotic species -- Invasive species -- Sabella spallanzanii; Marine pollution -- Periodicals; Marine Biology -- Periodicals; Water Pollution -- Periodicals; Mer -- Pollution -- Périodiques; Publications périodiques; Pollution des mers; Lutte antipollution; Electronic journals; 363.7394
• DOI: 10.1016/j.marpolbul.2017.08.040
• Languages: English
• ISSNs: 0025-326X

Abstract

Abstract: Both the invasion of non-indigenous marine species (NIMS) and the generation and accumulation of anthropogenic marine debris (AMD) are pervasive problems in coastal urban ecosystems. The biosecurity risks associated with AMD rafting NIMS have been described, but the role of aquaculture derived AMD has not yet been investigated as a biosecurity vector and pathway. This preliminary study targeted 27 beaches along the Coromandel Peninsula, New Zealand, collecting debris from belt transects. Plastic (specifically plastic rope) was the dominant AMD present on beaches. The most common biofouling taxa were hydroids, bryozoans, algae and polychaetes, with one NIMS pest species, Sabella spallanzanii, detected fouling plastic rope. Our findings demonstrate that aquaculture is an AMD (plastic rope) generating activity that creates biosecurity risk by enhancing the spread of NIMS. The rafting of S. spallanzanii on AMD generated at aquaculture facilities is currently an unmanaged pathway within New Zealand that needs attention. Highlights: Plastic is the dominant marine debris on Coromandel Peninsula beaches. AMD biofouling is linked to aquaculture farms and is an unmanaged biosecurity risk. The biosecurity pest, Sabella spallanzanii, rafts on plastic rope. Beaches with urban marine structures have more AMD than other beaches.