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Biology of Hippocampus patagonicus (Syngnathidae) in Brazilian waters. A species threatened with extinction, with suggestions for the conservation of seahorses in Brazil

dc.contributorPetrobras Socioambiental and Annenberg Fondationen-US
dc.creatorSilveira, Rosana Beatriz
dc.creatorda Silva, José Clebson
dc.creatorBenício, Lua
dc.creatorSilva, José Rodrigo Santos
dc.date2020-03-03
dc.date.accessioned2020-11-05T13:36:43Z
dc.date.available2020-11-05T13:36:43Z
dc.identifierhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol48-issue1-fulltext-2307
dc.identifier10.3856/vol48-issue1-fulltext-2307
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/159223
dc.descriptionSpecimens of Hippocampus patagonicus obtained in the bycatch of trawling in the states of Rio Grande do Sul (RS) and Rio de Janeiro (RJ) were collected in 2012 (n = 199) and 2014 (n = 157), respectively. Mean height of females of reproductive age in RS was 8.89 ± 1.9 cm, with the fecundity of 366 ± 195.8 eggs per clutch, and for males of reproductive age, height was 8.79 ± 1.86 cm and weight 2.3 ± 1.67 g, with 404 ± 99 embryos at each gestation. In RJ, height was 9.69 ± 1.05 cm and weight 2.9 ± 0.9 g, with the fecundity of 277 ± 95.06 eggs per clutch, and for males, height was 10.06 ± 1.02 cm and weight 3.68 ± 1.18 g, with the fecundity of 156.38 ± 66 embryos at each gestation. The equations obtained from the weight (W) to height (H) ratio were: W = 0.002 H3.182, R2= 0.947 (RS males); W = 0.004 H2.914, R2= 0.949 (RS females); W = 0.0050 H2.838, R2= 0.793 (RJ males); W = 0.014 H2.355, R2= 0.733 (RJ females). RS females produced more eggs (P = 0.023), and males incubated more embryos (P = 0.000) than those of RJ. The mean height of brood pouch formation in males was 4.69 ± 0.48 cm, 95% CI [4.53; 4.86], while the mean height at first sexual maturity was 8.34 cm (95% CI [7.481; 9.046]). Alternative strategies need to be developed for the conservation of H. patagonicus in Brazil.en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherPontificia Universidad Católica de Valparaísoen-US
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol48-issue1-fulltext-2307/1149
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol48-issue1-fulltext-2307/1651
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol48-issue1-fulltext-2307/1652
dc.rightsCopyright (c) 2020 Latin American Journal of Aquatic Researchen-US
dc.sourceLatin American Journal of Aquatic Research; Vol 48, No 1 (2020); 47-57en-US
dc.sourcePlataforma para envío de artículos - Latin American Journal of Aquatic Research; Vol 48, No 1 (2020); 47-57es-ES
dc.source0718-560X
dc.source0718-560X
dc.subjectHippocampus patagonicus; seahorse; bycatch; fishing resources; reproduction; threatened speciesen-US
dc.titleBiology of Hippocampus patagonicus (Syngnathidae) in Brazilian waters. A species threatened with extinction, with suggestions for the conservation of seahorses in Brazilen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeen-US
dc.typees-ES


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