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Population dynamics and movements of Atlantic tarpon, Megalops atlanticus, in the Parnaíba Delta Protected Area, Brazil: challenges for local fishery management planning

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Fishery management in Brazil has many challenges, including the engagement of fishers, building institutional (NGO, university, etc.) relationships to carry out research and provide key data for managers, and strengthening the capacity to articulate effective management strategies (policy institution). Here we report on recent work to address some of these challenges for the Atlantic tarpon (Megalops atlanticus) fishery in the Parnaiba Delta Protected Area. These include meetings to create inter-sector communication, citizen science and ethnobiology to support data collection and biological sampling, satellite tagging to discern tarpon movements, and the first data-limited stock assessment. The research occurred between September 2018 and April 2020 in the Parnaíba Delta and adjacent marine area, specifically in the Canárias Islands (MA), Pedra do Sal (PI), and Bitupitá (CE). Gonadosomatic indices (GSI > 5%) of female tarpon suggested that tarpon migrate to the Parnaíba Delta to spawn in the dry season (July–December). These GSI findings corresponded with the ethnobiology results in which the fishers confirmed more intense fishing effort in the dry periods due in part to the added value of the gonads. Satellite-tagged tarpon remained close to the Buraco and Boca da Barra fishery areas, thus, close to the Parnaíba Delta region. The information collected here will enhance the collaborative formulation of an unprecedented management plan for the tarpon fishery in this region.

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Data availability

The data that support the findings of this study are not openly available due to reasons of sensitivity, e.g., human data, and are available from the corresponding author upon reasonable request (include information on the data’s location, e.g., in a controlled access repository where relevant).


  • Adams AJ, Horodysky AZ, McBride RS, Macdonald TC, Shenker J, Guindon KY, Carpenter K (2014) Global conservation status and research needs for tarpons (Megalopidae), ladyfishes (Elopidae), and bonefishes (Albulidae). Fish Fish 15(2):280–311.

    Article  Google Scholar 

  • Alvares CA, Stape JL, Sentelhas PC, Gonçalves JLM, Sparovek G (2014) Köppen’s climate classification map for Brazil. Meteorologische Zeitschrift 22(6):711–728

    Article  Google Scholar 

  • Ault JS (ed) (2007) Biology and management of the world tarpon and bonefish fisheries, 1st edn. CRC Press.

  • Ault JS, Smith SG, Browder JA, Nuttle W, Franklin EC, Luo J, DiNardo GT, Bohnsack JA (2014) Indicators for assessing the ecological and sustainability dynamics of southern Florida’s coral reef and coastal fisheries. Ecol Ind 44(2014):164–172

    Article  Google Scholar 

  • Ault JS, Smith SG, Bohnsack JA, Luo J, Stevens MH, Johnson U, Bryan DR, DiNardo GT (2019) Length-based risk analysis for assessing sustainability of data-limited tropical reef fisheries. ICES J Mar Sci 76(1):165–180.

    Article  Google Scholar 

  • Ault JS, Smith SG, Johnson U, Grove LJW, Bohnsack JA, DiNardo GT, McLaughlin C, Ehrhardt NM, McDonough V, Seki MP, Miller SL, Luo J, Blondeau J, Crosby MP, Simpson G, Monaco ME, Pollack CG, Feeley U, Acosta A (2022) Length-based risk analysis of management options for the southern Florida USA multispecies coral reef fish fishery. Fish Res 249:106210

    Article  Google Scholar 

  • Baldwin JD, Snodgrass D (2008) Reproductive biology of Atlantic tarpon Megalops atlanticus. In: Ault JS (ed) Biology and management of the world tarpon and bonefish fisheries. Taylor and Francis Group, Boca Raton, FL, pp 195–201

    Google Scholar 

  • Banon R, Farias CD, Carlos A, Arronte JC, Varela JL, Arias A, Gonzalez-Ortegon E (2019) New record and revised list of Megalops atlanticus (Elopiformes: Megalopidae) from Atlantic European waters. Cybium 43(2):203–207

    Google Scholar 

  • Barletta M, Lima AR, Dantas DV, Oliveira IM, Neto JR, Fernandes CA, Costa MF (2017) How can accurate landing stats help in designing better fisheries and environmental management for Western Atlantic estuaries? Coastal Wetlands: Alteration and Remediation. Springer, Cham, pp 631–703

    Chapter  Google Scholar 

  • Barros MJG, Eduardo LN, Bertrand A, Lucena-Frédou F, Frédou T, Lira AS, Ferreira BP (2021) Bottom trawling on a carbonate shelf: do we get what we see? Cont Shelf Res 213:104314

    Article  Google Scholar 

  • Brown-Peterson NJ, Wyanski DM, Saborido-Rey F, Macewicz BJ, Lowerre-Barbieri SK (2011) A standardized terminology for describing reproductive development in fishes. Marine and Coastal Fisheries 3(1):52–70

    Article  Google Scholar 

  • Castellanos-Galindo GA, Robertson DR, Pacheco-Chaves B, Angulo A, Chong-Montenegro C (2019) Atlantic tarpon in the Tropical Eastern Pacific 80 years after it first crossed the Panama Canal. Rev Fish Biol Fisheries 29(2):401–416

    Article  Google Scholar 

  • Crabtree RE, Cyr EC, Bishop RE, Falkenstein LM, Dean JM (1992) Age and growth of tarpon, Megalops atlanticus, larvae in the eastern Gulf of Mexico, with notes on relative abundance and probable spawning areas. Environ Biol Fishes 35:361–370

    Article  CAS  Google Scholar 

  • Crabtree RE, Cyr EC, Chacón-Chaverri D, McLarney WO, Dean JM (1997) Reproduction of tarpon, Megalops atlanticus, from Florida and Costa Rican waters and notes on their age and growth. Bull Mar Sci 61(2):271–285

    Google Scholar 

  • Crabtree RE, Cyr EC, Dean JM (1995) Age and growth of tarpon, Megalops atlanticus, from South Florida waters. Fishery Bulletin US 93(4):619–628

    Google Scholar 

  • Dario FD, Alves CBM, Boos H, Fredou FL, Lessa RPT, Mincarone MM, Pinheiro, MAA, Polaz CNM, Reis RE, Rocha LA, Santana FM, Santos RA, Santos, SB, Vianna M, Vieira F. (2015) A better way forward for Brazil's fisheries. Science (New York, N.Y.: Online), v. 347, p. 1079–1079

  • Farias ACS, Fonteneles-Filho AA, Corrêa Ivo CT, Fernandes CAF, Cunha FEA (2015) Cadeia produtiva da pesca no interior do Delta do Parnaíba e área marinha adjacente. Fortaleza. RDS, 240p.

  • Fedler A (2013) Economic impact of the Florida Keys flats fishery. Report to Bonefish & Tarpon Trust. Available at: [Accessed 2 March 2022].

  • Fedler A (2014) Economic impact of flats fishing in Belize. Report to Bonefish & Tarpon Trust. Available at: https://www.bonefishtarpontrust. org/downloads/researchreports/stories/2013-belize-economic-study.pdf [Accessed 2 March 2022].

  • Fernandes CAF, Cunha FEA (2021) Delta do Parnaíba: ecologia e conservação. In: Danielle de Lima Viana; Jorge Eduardo Lins Oliveira; Fábio Hissa Vieira Hazin; Marco Antonio Carvalho de Souza. (Org.). Ciências do mar: dos oceanos do mundo ao Nordeste do Brasil : oceano, clima, ambientes e conservação. 1ed.Recife: Via Design Publicações, v. 1, p. 230–239

  • Fernandes CAF, Gondolo G, Magalhães W, Cunha FEA (2017) The artisanal fisheries for tarpon (Megalops atlanticus) in Brazil: conflicts between social and ecological applications. Bonefish and Tarpon Trust, 6th International Science Symposium, Weston, Florida.

  • Flores A, Wiff R, Díaz E (2015) Using the gonadosomatic index to estimate the maturity ogive: application to Chilean hake (Merluccius gayi gayi). ICES J Mar Sci 72(2):508–514.

    Article  Google Scholar 

  • Freire KMF, et al. (2021) Reconstruction of marine commercial landings for the Brazilian industrial and artisanal fisheries from 1950 to 2015. Frontiers in Marine Science 8: 1/659110–16

  • Froese R, Binohlan C (2000) Empirical relationships to estimate asymptotic length, length at first maturity and length at maximum yield per recruit in fishes, with a simple method to evaluate length frequency data. J Fish Biol 56:758–773

    Article  Google Scholar 

  • Froese R, Pauly D (eds) (2022) FishBase. [Version 02/2022].

  • Garrone-Neto D, Rodrigues A (2018) Megalops atlanticus Valenciennes, 1847 (Elopiformes, Megalopidae): new records for the state of São Paulo, with comments on its occurrence in the southeastern coast of Brazil. Southwest Atlantic. Check List 14(2):323–327

    Article  Google Scholar 

  • Griffin LP, Brownscombe JW, Adams AJ, Boucek RE, Finn JT, Heithaus MR, Rehage JS, Cooke SJ, Danylchuk AJ (2018) Keeping up with the Silver King: using cooperative acoustic telemetry networks to quantify the movements of Atlantic tarpon (Megalops atlanticus) in the coastal waters of the southeastern United States. Fish Res 205:65–76

    Article  Google Scholar 

  • Griffin LP, Brownscombe JW, Adams AJ, Holder PH, Wilson JK, Filous A, Casselbery GA, Boucek RE, Lowerre-Barbieri SK, Acosta A, Hunt J, Morley D, Cooke SJ, Danylchuk AJ (2022) Seasonal variation in the phenology of Atlantic tarpon (Megalops atlanticus) in the Florida Keys: migration, occupancy, repeatability, and management implications. Mar Ecol Prog Ser.

    Article  Google Scholar 

  • Guindon KY (2011) Evaluating lethal and sub-lethal effects of catch-and-release angling in Florida’s central gulf coast recreational Atlantic tarpon (Megalops atlanticus) fishery. Dissertation, University of South Florida

  • Hunter JR, Macewicz BJ (1985) Measurement of spawning frequency in multiple spawning fishes. NOAA Technical Report NMFS 36:79–94

    Google Scholar 

  • INMET (2020) Instituto nacional de meteorologia. Disponível em:

  • Kurth BN, Peebles EB, Stallings CD (2019) Atlantic Tarpon (Megalops atlanticus) exhibit upper estuarine habitat dependence followed by foraging system fidelity after ontogenetic habitat shifts. Estuar Coast Shelf Sci 225:106248.

    Article  CAS  Google Scholar 

  • LeCren ED (1951) The length-weight relationship and seasonal cycle in gonad weight and condition in the perch (Perca fluviatilis). J Anim Ecol 20(2):201–219.

    Article  Google Scholar 

  • Lucena LCA, Melo TX, Medeiros ESF (2015) Zooplankton community of Parnaíba River. Northeastern Brazil Acta Limnologica Brasiliensia 27(1):118–129

    Article  Google Scholar 

  • Luo J, Ault J, Larkin M, Humston R, Olson D (2008) Seasonal migratory patterns and vertical habitat utilization of Atlantic tarpon (Megalops atlanticus) from satellite PAT tags. In: Biology and Management of the World Tarpon and Bonefish Fisheries (Ault, J.S., ed.). CRC Press, Taylor and Francis Group, Boca Raton, Florida. pp. 275–300

  • Luo J, Ault JS (2012a) Vertical movement rates and habitat use of Atlantic tarpon. Mar Ecol Prog Ser 467:167–180

    Article  Google Scholar 

  • Luo J, Ault JS (2012b) A reliable game fish weight estimation model for Atlantic tarpon (Megalops atlanticus). Fish Res 139:110–117.

    Article  Google Scholar 

  • Luo J, Ault JS, Ungar BT, Smith SG, Larkin MF, Davidson TN, Bryan DR, Farmer NA, Scott AH, Alford AS, Adams AJ, Humston R, Marton AS, Mangum D, Kleppinger R, Requejo A, Robertson J (2019) Migrations and movements of Atlantic tarpon revealed by two decades of satellite tagging. Fish Fish 21(2):290–318.

    Article  CAS  Google Scholar 

  • Mace MM, Kimball ME, Haffey ER (2018) Recruitment and habitat use of early life stage tarpon (Megalops atlanticus) in South Carolina estuaries. Estuaries Coasts 41(3):841–854

    Article  Google Scholar 

  • McDonald G, Campbell SJ, Karr K, Clemence M, Granados-Dieseldorff P, Jakub R, Kartawijaya T, Mueller JC, Prihatinningsih P, Siegel K, Syaifudin Y (2017) An adaptive assessment and management toolkit for data-limited fisheries. Ocean Coast Manag 152:100–119

    Article  Google Scholar 

  • Murua H, Saborido-Rey F (2003) Female reproductive strategies of marine fish species of the North Atlantic. Journal of Northwest Atlantic Fishery Science 33:23–31.

    Article  Google Scholar 

  • Shenker JM, Cowie-Mojica E, Crabtree RE, Patterson HM, Stevens C, Yakubik K (2002) Recruitment of tarpon (Megalops atlanticus) leptocephali into the Indian River Lagoon, Florida. Contrib Mar Sci 35:55–69

    Google Scholar 

  • Silva CELS, Feitosa CV, Fernandes CAF (2021) Fishing gear selectivity on sub-adults and spawning stock of the Tarpon Megalops atlanticus (Actinopterygii: Megalopidae) in Northeast Brazil. Regional Stud Marine Sci 44:101727

    Article  Google Scholar 

  • Smith DG (1980) Early larvae of the tarpon, Megalops atlanticus Valenciennes (Pisces: ELopidae), with notes on spawning in the Gulf of Mexico and the Yucatan Channel. Bull Mar Sci 30(1):136–141

    Google Scholar 

  • Spotte S (2016) Tarpons: biology, ecology, fisheries. John Wiley & Sons, 347 pp

  • Wallace RK, Kristen MF (2001) Understanding fisheries management. Mississippi-Alabama Sea Grant Consortium

  • Wilson JK, Adams AJ, Mahrens RN (2019) Atlantic tarpon (Megalops atlanticus) nursery habitats: evaluation of habitat quality and broad-scale habitat identification. Environ Biol Fishes 102:383–402

    Article  Google Scholar 

  • Woodcock SH, Walther BD (2014) Trace elements and stable isotopes in Atlantic tarpon scales reveal movements across estuarine gradients. Fish Res 153:9–17.

    Article  Google Scholar 

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Correspondence to Cezar A. F. Fernandes.

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Fernandes, C.A.F., Cunha, F.E.A., Silva, C.E.L.S. et al. Population dynamics and movements of Atlantic tarpon, Megalops atlanticus, in the Parnaíba Delta Protected Area, Brazil: challenges for local fishery management planning. Environ Biol Fish 106, 449–468 (2023).

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