## 3 Results
### Authors' Analysis  
In Figure 12, the most cited authors and their works are presented. Cluster #1 (red cluster) represents the most cited document of [PERSON] et al. [70] which deals with ecological problems and solutions in maritime production. In that cluster, there are studies into biofouling, marine aquaculture environment, and economic analysis by [PERSON] et al. [66], and the importance and role of GIS modelling to evaluate location for offshore farms [71]. In cluster #2, or the blue cluster, the most cited document is from [32], which is about biofouling. [PERSON], [PERSON], and [PERSON] [72], [PERSON] and [PERSON] [73], and [PERSON] et al. [74] performed research into the food in maritime where the focus is based on the stakeholder perceptions of conventional aquaculture which have been studied in terms of danger, influence on other users of maritime and consumer aspects. In [59; 75], cages for offshore mariculture and the concept of offshore fish farming are based on a united viewpoint, and the limitations of going offshore are highlighted. The review of [PERSON] et al. [76] focuses on the current state of antibiotic use, as well as the consequences on animal health and the environment. Most of these papers are related to sustainability [77; 78]. Studies [79; 80; 81] are related to the analysis of mariculture, the development of mariculture, and the heat sensitivity of the species. Then, scientific guidance on the mariculture industry layout, modern ecological farming patterns, the development of mariculture technologies and pollution treatment facilities, as well as tools to assess risks in maritime production and suggested solutions for future mitigation and adaptations, are urgently required to facilitate balanced sustainable development of mariculture [79; 80; 82]. According to [83], nutrients from mariculture will increase up to sixfold by 2050, exceeding the nutrient assimilative capacity in places of the world where mariculture growth is currently high. [PERSON] et al. [84] create a framework for greater insight into the role of government in maritime development that is relevant across regions, giving useful context for identifying opportunities and challenges to maritime expansion. [PERSON] et al. [84] stated that using sustainable culture systems is the key to improving and preserving the long-term health of mariculture zones and suggest moving farms offshore, and [PERSON] and [PERSON] [85] presented the importance of the ecosystem on the example of China and how to prevent bigger marine pollution and negative impact on the environment.  
Figure 11: Research hotspots in maritime based on the literature overview.  
The same analysis was performed in CiteSpace as well, Figure 13, and based on the CiteSpace visualization the most cited paper is authored by [PERSON] et al. [32] dealing with the impact and control of biofouling in mariculture. Related to the topic of biofouling, there are studies [37; 86; 87; 88; 89; 90]. Food security and potential risks for mariculture were studied and most cited by [PERSON] et al. [91], [PERSON] [92], and [PERSON] et al. [93]. Cage, offshore mariculture, and how to make production more sustainable are discussed in [94; 95; 96].  
Figure 12: Authors of the most cited documents.  
Figure 13: Authors of the most cited documents analyzed in CiteSpace.