Comparison of the population biology of Epialtus bituberculatus from two rocky shores with distinct hydrodynamic patterns

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorDe Paiva Barros-Alves, Samara
dc.creatorAlves, Douglas Fernandes Rodrigues
dc.creatorCobo, Valter José
dc.date2014-05-27T11:29:02Z
dc.date2016-10-25T18:47:58Z
dc.date2014-05-27T11:29:02Z
dc.date2016-10-25T18:47:58Z
dc.date2013-05-01
dc.date.accessioned2017-04-06T02:22:13Z
dc.date.available2017-04-06T02:22:13Z
dc.identifierJournal of the Marine Biological Association of the United Kingdom, v. 93, n. 3, p. 693-702, 2013.
dc.identifier0025-3154
dc.identifier1469-7769
dc.identifierhttp://hdl.handle.net/11449/75238
dc.identifierhttp://acervodigital.unesp.br/handle/11449/75238
dc.identifier10.1017/S0025315412000586
dc.identifierWOS:000317238100014
dc.identifier2-s2.0-84876127384.pdf
dc.identifier2-s2.0-84876127384
dc.identifierhttp://dx.doi.org/10.1017/S0025315412000586
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/895985
dc.descriptionThe population biology of Epialtus bituberculatus was compared between two different intertidal localities with differing levels of wave exposure. Sampling was conducted monthly between January and December, 2001 on seaweed banks of Sargassum cymosum in the intertidal zone of the rocky shores Grande (GR) (23°23′S-45°03′W) and Domingas Dias (DD) (23°29′S-45°08′W). Four hundred and twenty-eight crabs were captured at the GR site: 111 juvenile males, 106 adult males, 57 juvenile females, 17 adult females and 137 ovigerous females; while 455 specimens were obtained at the DD site: 76 juvenile males, 113 adult males, 37 juvenile females, 40 adult females and 189 ovigerous females. The population from GR showed a non-normal distribution and from DD a normal distribution. The sex-ratio (female/male) was 1:0.97 at GR (χ2 = 0.77, P = 0.084), whereas it was 1:1.41 at DD (χ2 = 13.03, P < 0.001). The largest individuals occurred at DD (U = 78249.0, P < 0.001). The estimated size at sexual maturity was 6.3 and 5.0 mm carapace width (CW) for males, and 5.4 and 5.2 mm CW for females, from GR and DD, respectively. The observed differences in E. bituberculatus between the studied localities might be explained by the different degrees of wave exposure between sites. However, other factors that might also explain the observed differences (e.g. temperature, salinity and food availability) cannot be discarded as relevant in influencing the population structure between sites herein studied. © 2012 Marine Biological Association of the United Kingdom.
dc.languageeng
dc.relationJournal of the Marine Biological Association of the United Kingdom
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectBrachyura
dc.subjectEpialtinae
dc.subjectEpialtus bituberculatus
dc.subjectintertidal
dc.subjectpopulation structure
dc.subjectwaves
dc.subjectadult
dc.subjectbrown alga
dc.subjectcrab
dc.subjectfemale
dc.subjectfood availability
dc.subjecthydrodynamics
dc.subjectjuvenile
dc.subjectpopulation distribution
dc.subjectpopulation ecology
dc.subjectrocky shore
dc.subjectsalinity
dc.subjectsampling
dc.subjectseaweed
dc.subjectwave force
dc.subjectBrazil
dc.subjectSao Paulo [Brazil]
dc.subjectUbatuba
dc.titleComparison of the population biology of Epialtus bituberculatus from two rocky shores with distinct hydrodynamic patterns
dc.typeOtro


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