Perceptions of climate and ocean change impacting the resources and livelihood of small-scale fishers in the South Brazil Bight
Coastal fishing communities are closely linked to the biological and ecological characteristics of exploited resources and the physical conditions associated with climate and ocean dynamics. Thus, the human populations that depend on fisheries are inherently exposed to climate variability and uncertainty. This study applied an ethno-oceanographic framework to investigate the perceptions of fishers on climate and ocean change to better understand the impacts of climate change on the coastal fishing communities of the South Brazil Bight. Seven coastal fishing communities that cover the regional diversity of the area were selected. Fishers were interviewed using a semi-structured questionnaire. The results suggest that fishers have detected climate-related changes in their environment such as reduced rainfall, increased drought events, calmer sea conditions, increases in air and ocean temperatures, changes in wind patterns and shoreline erosion. The perceptions of the fishers were compared to the available scientific data, and correlations were found with rainfall, wind speed and air and ocean temperatures. New hypotheses were raised based on the perceptions of fishers about sea level, coastal currents and sea conditions such as the hypothesis that the sea has become calmer. These perceived changes have positive and negative effects on the yields and livelihoods of fishers. The present work is the first evaluation of the perceptions of fishers on climate and ocean change and brings new understandings of climate-fishery-human interactions as well as provides inputs for future adaptation plans.
We thank CNPq for the scholarship, and the GULLS project (Belmont Forum research initiative) for the opportunity to interact and collaborate with international experts. Sincere gratitude to all fishers who kindly collaborated with the study.
Thanks are given to FAPESP for funding the research.
- Allison EH, Perry AL, Badjeck MC et al (2009) Vulnerability of national economies to the impacts of climate change on fisheries. Fish and Fisheries 10:173-196.Google Scholar
- Angulo RJ, Souza MC, Muller ME (2009) Forecast and consequences of a new inlet opening at Mar do Ararapira, southern Brazil. Quater Environ Geosci 01(2):67–75Google Scholar
- Bell JD, Cheung W, De Silva S et al (2016) Impacts and effects of ocean warming on the contribution of fisheries and aquaculture to food security. In: Laffoley D, Baxter JM (ed) Explaining ocean warming: causes, scale, effects and consequences. IUCN, Gland, Switzerland, pp 409–435Google Scholar
- Cavalcanti IFA, Ferreira NJ, Silva MGA, Dias MAF (2009) Tempo e Clima no Brasil. Oficina de textos, São Paulo, BrazilGoogle Scholar
- Church JA, Clark PU, Cazenave A et al (2013) Sea level change. In: Stocker TF, Qin D, Plattner G-K et al (eds) Climate change 2013: the physical science basis. Cambridge University Press, CambridgeGoogle Scholar
- Climanálise (1986–2016) Boletim de monitoramento e análise climática. CPTEC/INPE. http://climanalise.cptec.inpe.br/~rclimanl/boletim/. Accessed 14 Oct 2017
- Coelho CAS, Cardoso DHF, Firpo MAF (2015) Precipitation diagnostics of an exceptionally dry event in São Paulo, Brazil. Theor Appl Climatol 1:16Google Scholar
- Contente RF (2013) Padrões ecológicos locais e multidecadais da ictiofauna do estuário Cananéia-Iguape. PhD Thesis, University of São Paulo, BrazilGoogle Scholar
- Davidson-Hunt IJ, Berkes F (2003) Nature and society through the lens of resilience: toward a human-in-ecosystem perspective. In: Berkes F, Colding J, Folke C (eds) Navigating social-ecological systems: building resilience for complexity and change. Cambridge Press, Cambridge, pp 53–82Google Scholar
- Diegues AC (2006) Artisanal fisheries in Brazil. Samudra Monograph, ICSF, RomeGoogle Scholar
- Dufek AS, Ambrizzi T (2007) Precipitation variability in Sao Paulo state, Brazil. Theor Appl Climatol 1:1–12Google Scholar
- Ford JD, Smit B, Wandel J, MacDonald J (2006) Vulnerability to climate change in Igloolik, Nunavut: what we can learn from the past and present. Polar Record 42(221):127-138.Google Scholar
- Harari J, França CAS, Camargo R (2013) Long-term variability of tidal and mean sea level components on the Brazilian coast. Braz J Geophys 31:49–52Google Scholar
- Hartmann DL, Klein TAMG, Rusticucci M et al (2013) Observations: atmosphere and surface. In: Stocker TF, Qin D, Plattner G-K et al (eds) Climate change 2013: the physical science basis. Cambridge University Press, CambridgeGoogle Scholar
- Hobday AJ, Cochrane K, Downey-Breedt N et al (2016) Planning adaptation to climate change in fast-warming marine regions with seafood-dependent coastal communities. Rev Fish Biol Fisher 8:177–214Google Scholar
- Jahan I, Ahsan D, Farque MH (2015) Fishers’ local knowledge on impact of climate change and anthropogenic interferences on Hilsa fishery in South Asia: evidence from Bangladesh. Environ Dev Sustain 19(2):461–478Google Scholar
- Pereira OM, Machado IC, Henriques MB, Yamanaka N (2001) Crescimento da ostra Crassostrea brasiliana semeada sobre tabuleiro em diferentes densidades na região estuarino- lagunar de Cananéia-SP (25°S, 48°W). B Inst Pesca 27(2):163–174Google Scholar
- Postuma FA, Gasalla MA (2010) On the relationship between squid and the environment: artisanal jigging for Loligo plei at São Sebastião Island (248S), southeastern Brazil. ICES J Mar Sci 67:1353–1362Google Scholar
- Seixas ARC, Hoeffel JLM, Renk M et al (2014) Perception of fishermen and shellfish producers on global environmental changes in the northern coast of São Paulo state, Brazil. JICZM 14(1):51–64Google Scholar
- Shelton C (2014) Climate change adaptation in fisheries and aquaculture: compilation of initial examples. FAO Fisheries and Aquaculture Circ. 1088, FAO, RomeGoogle Scholar