Table 1.

Defining research clusters based on keywords used in aquatic food consumption literature.

Cluster-ID/Colour	Research Clusters	Definition of Cluster	Keywords (Links, Total Link Strength, Occurrences)
C1/Red	Product attributes, availability, and accessibility	Product attributes both, intrinsic and extrinsic, as well as availability and accessibility of aquatic food products.	Quality (56, 207, 25), availability (53, 160, 20), freshness (57, 147, 18), taste (53, 136, 16), nutrition (49, 121, 15), size (50, 129, 14), form (47, 93, 11), production (36, 68, 10), wild fish (42, 79, 8), tuna (39, 63, 8), colour (25, 48, 7), food security (36, 52, 6), supermarket (36, 54, 6), sensory attributes (38, 55, 5), packaging (31, 41, 5), appearance (28, 43, 4), quantity (28, 39, 4), brand (21, 30, 4)
C2/Yellow	Willingness to pay for aquatic foods	The majority of the publications are related to Asian consumers’ willingness to pay (WTP) for aquatic foods.	Price (60, 281, 41), knowledge (57, 220, 34), seafood (55, 168, 24), fish product (51, 152, 20), farmed fish (50, 107, 15), sustainability (48, 106, 14), eco (34, 72, 12), certification (42, 90, 11), origin (35, 61, 9), information (29, 52, 9), shrimp (30, 44, 7), sustainable farmed fish (22, 34, 5)
C3/Purple	Psychosocial factors	Psychosocial factors influencing aquatic food consumption behaviour.	Attitude (57, 202, 28), intention (52, 134, 22), subjective norms (34, 79, 12), planned behaviour (25, 68, 12), behavioural control (28, 63, 10)
C4/Blue	Sociodemographic and lifestyle factors	Sociodemographic and lifestyle factors influencing consumption behaviour towards aquatic foods.	Household (50, 165, 24), income (50, 167, 20), health (50, 143, 18), habit (52, 141, 17), age (43, 135, 17), education (51, 142, 16), pattern (45, 122, 15), economy (35, 60, 8), urban area (37, 63, 8), gender (34, 60, 8), fish species (33, 51, 8), region (33, 49, 8), diet (30, 52, 7), religion (21, 30, 5)
C5/Green	Aquatic food miscellaneous factors	Closely linked to other research clusters, the majority of the publications are related to Chinese aquatic consumption.	Safety (50, 183, 24), city (59, 173, 23), sociodemographic characteristics (55, 136, 20), status (43, 87, 11), culture (35, 54, 9), context (34, 47, 9), freshwater fish (38, 66, 8), salmon (32, 45, 8), convenience (41, 69, 7), aquatic product (36, 58, 7), occupation (35, 60, 7), Chinese consumer (35, 50, 6), tradition (20, 24, 5), shellfish (32, 42, 4), luxury seafood (20, 24, 4)