The database contains data collected from 25 communities along the western coast of Shikoku, Japan, between January and March 2023. It includes values of adaptive capacity indicators aligned with the adaptive capacity domains outlined by Cinner and Barnes (2019). Additionally, the dataset captures fishers' responses to climate change, following the adaptation pathways proposed by Fedele et al. (2019) and Ojea et al. (2020).References: Fedele, G., Donatti, C. I., Harvey, C. A., Hannah, L. & Hole, D. G. Transformative adaptation to climate change for sustainable social-ecological systems. Environmental Science & Policy 101, 116–125 (2019).Cinner, J. E. & Barnes, M. L. Social Dimensions of Resilience in Social-Ecological Systems. One Earth 1, 51–56 (2019).Ojea, E., Lester, S. E. & Salgueiro-Otero, D. Adaptation of Fishing Communities to Climate-Driven Shifts in Target Species. One Earth 2, 544–556 (2020).

The database contains data collected from 25 communities along the western coast of Shikoku, Japan, between January and March 2023. It includes values of adaptive capacity indicators aligned with the adaptive capacity domains outlined by Cinner and Barnes (2019). Additionally, the dataset captures fishers' responses to climate change, following the adaptation pathways proposed by Fedele et al. (2019) and Ojea et al. (2020).References: Fedele, G., Donatti, C. I., Harvey, C. A., Hannah, L. & Hole, D. G. Transformative adaptation to climate change for sustainable social-ecological systems. Environmental Science & Policy 101, 116–125 (2019).Cinner, J. E. & Barnes, M. L. Social Dimensions of Resilience in Social-Ecological Systems. One Earth 1, 51–56 (2019).Ojea, E., Lester, S. E. & Salgueiro-Otero, D. Adaptation of Fishing Communities to Climate-Driven Shifts in Target Species. One Earth 2, 544–556 (2020).

Acropora is one of the largest taxonomic groups of scleractinian corals in the Indo-Pacific and contributes towards the establishment of coral communities in the Ryukyu Islands. Branching Acropora populations have a component of asexual reproduction; however, this may lead to a decline in genetic diversity, leaving populations vulnerable to environmental changes. Therefore, a sufficient supply of larvae produced via sexual reproduction is necessary to maintain genetic diversity in the branching Acropora communities. Fertilization success in branching Acropora depends on a variety of factors, including genetic and environmental conditions. How genotype and/or genetic compatibility drives fertilization rates in Acropora communities under natural conditions has not been investigated. To investigate how genotype and/or genetic compatibility determine fertilization rates in Acropora communities over the long-term, cross-mating experiments with branching Acropora using the same colonies were conducted from 2006 to 2011 in an aquarium. Acropora from cultured and natural colonies collected from a reef (26° 40' 19.2'' N, 127° 52' 40.8'' E) were used. Fertilization rates showed less variation within the same crossing combinations, but large variation across years for the same genotypes of focal colonies. Results indicated that fertilization rate was highly variable depending on genotype compatibility with different mating partners. Additionally, simulations of fertilization rates with increasing population size revealed that small populations that had low genetic diversity (fewer than 10 genotypes) failed to fertilize. These results support the establishment or maintenance of source populations that facilitate sufficient genetic diversity of branching Acropora to enhance coral community restoration.

We evaluated acidification effects on two crustose coralline algal species common to Pacific coral reefs, Lithophyllum kotschyanum and Hydrolithon samoense. We used genetically homogeneous samples of both species to eliminate misidentification of species. The growth rates and percent calcification of the walls of the epithallial cells (thallus surface cells) of both species decreased with increasing pCO2. However, elevated pCO2 more strongly inhibited the growth of L. kotschyanum versus H. samoense. The trend of decreasing percent calcification of the cell wall did not differ between these species, although intercellular calcification of the epithallial cells in L. kotschyanum was apparently reduced at elevated pCO2, a result that might indicate that there are differences in the solubility or density of the calcite skeletons of these two species. These results can provide knowledge fundamental to future studies of the physiological and genetic mechanisms that underlie the response of crustose coralline algae to environmental stresses.