Marine litter colonization: Methodological challenges and recommendations

Marine litter colonization by marine invertebrate species is a major global concern resulting in the dispersal of potentially invasive species has been widely reported. However, there are still several methodological challenges and uncertainties in this field of research. In this review, literature related to field studies on marine litter colonization was compiled and analyzed. A general overview of the current knowledge is presented. Major challenges and knowledge gaps were also identified, specifically concerning: 1) uncertainties in species identification, 2) lack of standardized sampling methodologies, 3) inconsistencies with the data reported, and 4) insufficient chemical-analytical approaches to understand this phenomenon. Aiming to serve as a guide for future studies, several recommendations are provided for each point, particularly considering the inaccessibility to advanced techniques and laboratories.

Automated summary

The colonization of marine litter by marine invertebrate species is a global concern leading to the dispersal of potentially invasive species. However, there are methodological challenges and uncertainties in this field of research. This review compiled and analyzed literature on field studies of marine litter colonization, providing a general overview of the current knowledge. Major challenges and knowledge gaps were identified, including uncertainties in species identification, lack of standardized sampling methodologies, inconsistencies in reported data, and insufficient chemical-analytical approaches. Recommendations are provided for each point, taking into consideration the limited access to advanced techniques and laboratories.