Main Article Content
The penaeid shrimp Xiphopenaeus kroyeri is the second most important species of crustacean in Brazilian fisheries. Stable isotopes of carbon and nitrogen are chemical proxies to provide quantitative information about the consumer isotopic niche, which is associated with its feeding ecology and ecological niche in the environment. This study evaluated the niche dimensions of X. kroyeri from different stocks through stable isotopes determinations. Shrimps were sampled in four fishing areas from southeastern Brazil (Vitória and Anchieta, in Espírito Santo State, and Atafona and Farol de São Tomé, in Rio de Janeiro State). The stable isotopes of carbon and nitrogen were determined in the abdominal muscle. Quantitative metrics of the isotopic niche estimated the trophic diversity and trophic redundancy among stocks. Shrimp stocks from Espírito Santo State had highest trophic diversity, indicating greater variety of food sources and wider utilization of the available food sources. The shrimps from Rio de Janeiro State had highest trophic redundancy, revealing a more homogeneous dietary pattern. The isotopic niche approach allowed the discrimination of X. kroyeri stocks distributed in southeastern Brazil, and the results will be helpful to assist fisheries management.
Authors own the copyright to the articles published in JoTT. This is indicated explicitly in each publication. The authors grant permission to the publisher Wildlife Information Liaison Development (WILD) Society to publish the article in the Journal of Threatened Taxa. The authors recognize WILD as the original publisher, and to sell hard copies of the Journal and article to any buyer. JoTT is registered under the Creative Commons Attribution 4.0 International License (CC BY), which allows authors to retain copyright ownership. Under this license the authors allow anyone to download, cite, use the data, modify, reprint, copy and distribute provided the authors and source of publication are credited through appropriate citations (e.g., Son et al. (2016). Bats (Mammalia: Chiroptera) of the southeastern Truong Son Mountains, Quang Ngai Province, Vietnam. Journal of Threatened Taxa 8(7): 8953–8969. https://doi.org/10.11609/jott.27188.8.131.5253-8969). Users of the data do not require specific permission from the authors or the publisher.
Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃ³gico
Grant numbers 301.259/2017-8
FundaÃ§Ã£o Carlos Chagas Filho de Amparo Ã Pesquisa do Estado do Rio de Janeiro
Grant numbers E-26/202.770/2017, E-26/210.064/2018, E-26/210.844/2018
CoordenaÃ§Ã£o de AperfeiÃ§oamento de Pessoal de NÃvel Superior
Grant numbers Financial code 001
Boos, H., R.C. Costa, R.A.F. Santos, J. Dias-Neto, E. Severino-Rodrigues, L.F. Rodrigues, F. D’Incao, C.T.C. Ivo & P.A. Coelho (2016). Avaliação dos camarões peneídeos (Decapoda: Penaeidae), pp. 300–317. In: Pinheiro, M. & H. Boos (eds.). Livro vermelho dos crustáceos do Brasil: Avaliação 2010–2014. Sociedade Brasileira de Carcinologia, Porto Alegre, 466pp.
Carnevali, R.P., P.A. Collins & A.S.G. Poi de Neiff (2012). Trophic ecology of the freshwater prawn, Pseudopalaemon bouvieri (Decapoda: Palaemonidae) in Northeastern Argentina: with remarks on population structure. Revista de Biología Tropical 60: 305–316.
FAO (2018). The state of world fisheries and aquaculture 2018 - Meeting the sustainable development goals. FAO, Rome, 210pp. http://www.fao.org/3/i9540en/i9540en.pdf
Fry, B. (2008). Stable Isotope Ecology. Springer-Verlag, New York, 308pp.
Fry, B., D.M. Baltz, M.C. Benfield, J.W. Fleeger, A. Gace, H.L. Haas & Z.J. Quinones-Rivera (2003). Stable isotope indicators of movement and residency for brown shrimp (Farfantepenaeus aztecus) in coastal Louisiana Marshscapes. Estuaries 26: 82–97. https://doi.org/10.1007/bf02691696 DOI: https://doi.org/10.1007/BF02691696
Gutiérrez, J.C.S., J.T. Ponce-Palafox, N.B. Pineda-Jaimes, V. Arenas-Fuentes, J.L. Arredondo-Figueroa & J.L. Cifuentes-Lemus (2016). The feeding ecology of penaeid shrimp in tropical lagoon-estuarine systems. Gayana 80: 16–28. https://doi.org/10.4067/s0717-65382016000100003 DOI: https://doi.org/10.4067/S0717-65382016000100003
Jackson, A.L., R. Inger, A.C. Parnell & S. Bearhop (2011). Comparing isotopic niche widths among and within communities: SIBER – Stable Isotope Bayesian Ellipses in R. Journal of Animal Ecology 80: 595–602. https://doi.org/10.1111/j.1365-2656.2011.01806.x DOI: https://doi.org/10.1111/j.1365-2656.2011.01806.x
Layman, C.A., D.A. Arrington, C.G. Montana & D.M. Post (2007). Can stable isotope ratios provide for community-wide measures of trophic structure? Ecology 88: 42–48. https://doi.org/10.1890/0012-9658(2007)88[42:csirpf]2.0.co;2
MacArthur, R.H. (1984). Geographical Ecology: Patterns in the Distribution of Species. Princeton, Princeton University Press, 269pp.
Ortea, I. & J.M. Gallardo (2015). Investigation of production method, geographical origin and species authentication in commercially relevant shrimps using stable isotope ratio and/or multi-element analyses combined with chemometrics: An exploratory analysis. Food chemistry 170: 145–153. https://doi.org/10.1016/j.foodchem.2014.08.049 DOI: https://doi.org/10.1016/j.foodchem.2014.08.049
R Core Team (2020). R: A language and environment for
statistical computing. Version 3.6.3. R Foundation for Statistical Computing. Available at: https://www.R-project.org/
Willems, T., A. De Backer, T. Kerkhove, N.N. Dakriet, M. De Troch, M. Vincx & K. Hostens (2016). Trophic ecology of Atlantic sea-bob shrimp Xiphopenaeus kroyeri: Intertidal benthic microalgae support the subtidal food web off Suriname. Estuarine Coastal and Shelf Science 182: 146–157. https://doi.org/10.1016/j.ecss.2016.09.015 DOI: https://doi.org/10.1016/j.ecss.2016.09.015