Table 2.

Catalog of behavioral categories that were used during scan sampling. For each behavioral category, some examples are shown.

Category	Code	Definition	References
Affiliative	aff	All affiliative interactions between two or more dolphins, e.g., synchronous breathing, flipper rubbing, and pair swimming.	[41,57,58]
Agonistic	ago	Any form of agonistic or aggressive behavior, e.g., biting, (tail) slapping, ramming, or hitting (with rostrum or fluke).	[57,59]
Maternal	mat	Mother–calf interactions were defined as echelon swimming, nursing, or swimming in infant position.	[60,61,62]
Play	play	Object-play behavior, e.g., ball play, bubble ring play, locomotor play, or social play, between two or more dolphins.	[39,63,64,65,66,67]
Socio-sexual	sex	All behaviors between at least two dolphins with any form of body contact in the genital area, including goosing, petting, or rubbing of the genital area.	[57,68]
Solitary	sol	Behaviors shown by one dolphin without interactions with another individual, e.g., resting or swimming.	[57]