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The complementary use and transfer of empirical and scientific knowledge are essential for the holistic and sustainable management of fishing resources. To understand how both types of knowledge are transferred in fishing communities in three regions of Mexico, we conducted 120 in-depth interviews with young people, adults, and older adults who participated in various activities within fishing value networks. During the interviews, we identified who participated in transferring knowledge within communities, what lessons were passed on, what knowledge has been lost, and what scientific topics are known within the communities. We also investigated the sector’s most used means of communication to further explore the transfer of scientific and technical knowledge and the fundamental roles of external actors in transferring knowledge within communities. The information was coded, categorized, and analyzed for each question. The interviewees valued the continuity of inheriting traditional knowledge, which included teaching practical skills, such as fishing techniques and navigation, and transmitting values, traditions, and ways of understanding and relating to the marine environment. The interviewees perceived knowledge transfer as a bidirectional exchange of knowledge, ideas, and practices among generations. Furthermore, they recognized the value of external actors with scientific and technical knowledge in promoting innovation and adapting to new challenges. The combination of knowledge and perspectives enriches fisheries management and marine environmental conservation. Promoting the transfer of traditional and scientific knowledge is fundamental to building a future where fishing and marine life coexist in harmony and prosperity. The responsibility of supporting this integration falls on fishing communities and external actors. Working together in this collaborative learning process is the key to achieving sustainable resource management and ensuring the continuity of this valuable tradition for future generations. In doing so, these communities’ cultural and ecological richness can be preserved, ensuring a lasting balance between people and the sea. 

Abstract Little is known about the reproductive biology of the leopard seal (Hydrurga leptonyx), a Southern Ocean predator. Here we observed sexual behavior in wild leopard seals in Laguna San Rafael, Chile during a 2 h courtship interaction between a female and male. The female was hauled out on ice, mostly lying still (69% of the time) or moving (19%). The male was mostly under water (87%) or at the water’s surface (11%). The female made seven in-air calls (i.e., thump pulse, noseblast, blast, growl). The male produced 65 underwater calls (i.e., low- and high-double trills, unidentified trills). The underwater calls appeared to be directed toward the female. After the primary male vocalized for an hour, one or two unidentified leopard seals briefly swam near the female. After leaving the area, we heard underwater calls for another 8 h. The next day, the primary male was hauled out on ice with a swollen genital opening. The male was bleeding from a laceration caudal to the preputial opening, suggesting the male attempted to mate and that the female, or another seal, was responsible for the injury. Together, we find that leopard seal courtship involves a suite of behavioral and acoustic behaviors by both sexes, both in air and under water. This is the first description of leopard seal sexual behavior in the wild. Our study also provides the first evidence that leopard seals mate in South America.