Fecundity of the Crab Callinectes Ornatus Ordway, 1863 (Decapoda, Brachyura, Portunidae) From the Ubatuba Region, São Paulo, Brazil

Mantelatto, Fernando L.; Fransozo, Adílson

doi:10.1163/156854097x00852

Cited by 121 publications

(99 citation statements)

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“…Variations in fecundity for species of the same genus can be related to environmental adaptations, variations in animal size and geographic location (FOTHERINGHAM, 1976;SASTRY, 1983;CARLON & EBERSOLE, 1995;MANTELATTO & FRANSOZO, 1997). In this case we agree with IOSSI et al (2005) who proposed that not only these factors can influence the fecundity of a species but also the interspecific competition (especially in terms of competition for resources).…”

Section: Discussionsupporting

confidence: 82%

Population and reproductive features of the western Atlantic hermit crab Pagurus criniticornis (Anomura, Paguridae) from Anchieta Island, southeastern Brazil

Mantelatto

Faria

Iossi

et al. 2007

Iheringia, Sér. Zool.

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ABSTRACT. The population of the hermit crab Pagurus criniticornis (Dana, 1852) was studied based on seasonal abundance, size frequency distribution, sex ratio, reproductive period, fecundity and shell relationship. Specimens were collected monthly by SCUBA diving in the infralittoral area of Anchieta Island, Ubatuba. A total of 1,017 individuals was analyzed. Animal size (minimum and maximum shield length, respectively) was 0.7 and 2.9 mm for males, 0.6 and 2.8 mm for non-ovigerous females, and 1.0 and 2.5 mm for ovigerous females. The sex ratio was 1:1.29. Sexual dimorphism was recorded by the presence of males in the largest size classes. Ovigerous females were captured during all months along the year, with percentages varying from 8% (July) to 84.3% (February) in relation to the total females collected. Mean ± SD fecundity was 168 ± 125 eggs and tended to increase with increasing hermit size. Shells of four gastropod species [Cerithium atratum (Born, 1778), Morula nodulosa (Adams, 1845), Anachis lyrata (Sowerby, 1832) and Modulus modulus (Linnaeus, 1758)] were occupied by ovigerous females of P. criniticornis but fecundity was not significantly different in relation to the different shell types. The profile showed continuous and intense reproduction of P. criniticornis probably related to strategies developed to compensate for interspecific competition in the studied insular area. KEYWORDS.Crustacea, hermit crab, populational biology, fecundity. RESUMO. Caracterização populacional e reprodutiva do ermitão do Atlântico OcidentalPagurus criniticornis (Anomura, Paguridae) da Ilha Anchieta, sudeste do Brasil. A população do ermitão Pagurus criniticornis (Dana, 1872) foi avaliada com base na abundância sazonal, distribuição da freqüência de tamanho, razão sexual, período reprodutivo, fecundidade e relação com a concha ocupada. Os espécimes foram coletados mensalmente por meio de mergulho autônomo no infralitoral da Ilha Anchieta, Ubatuba. Um total de 1.017 indivíduos foi analisado. O tamanho dos animais (comprimento mínimo e máximo do escudo cefalotorácico, respectivamente) foi de 0,7 e 2,9 mm para os machos, 0,6 e 2,8 mm para as fêmeas não ovígeras e 1,0 e 2,5 mm para as fêmeas ovígeras. A razão sexual foi de 1:1,29. Foi observado dimorfismo sexual em função da presença de machos nas maiores classes de tamanho. Fêmeas ovígeras foram capturadas em todos os meses do ano, com a porcentagem variando de 8% (Julho) a 84,3% (Fevereiro) em relação ao total de fêmeas coletadas. A fecundidade média foi de 168 ± 125 ovos e tendeu a ser maior com o aumento do tamanho do ermitão. Fêmeas ovígeras de P. criniticornis foram encontradas ocupando quatro espécies de conchas de gastrópodes [Cerithium atratum (Born, 1778), Morula nodulosa (Adams, 1845), Anachis lyrata (Sowerby, 1832) e Modulus modulus (Linnaeus, 1758)] no entanto, a fecundidade não foi significativamente diferente em relação aos diferentes tipos de conchas. A população de P. criniticornis apresentou um perfil reprodutivo contínuo e intenso, possivelmente relacionad...

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Section: Discussionsupporting

confidence: 82%

Population and reproductive features of the western Atlantic hermit crab Pagurus criniticornis (Anomura, Paguridae) from Anchieta Island, southeastern Brazil

Mantelatto

Faria

Iossi

et al. 2007

Iheringia, Sér. Zool.

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“…Inúmeros autores encontraram esse modelo proposto em espécies variadas de Brachyura de locais distintos, a saber, em Arenaeus cribrarius, Portunus spinimanus e Callinectes ornatus provenientes de Ubatuba, SP (PINHEIRO & FRANSOZO 1993, SANTOS et al 1995, MANTELATTO & MARTINELLI 1999, e em Armases angustipes do litoral do Estado do Paraná (KOWALCZUK & MASUNARI 2000). Do estrangeiro, este padrão foi descrito para Potamon potamios palestinensis da região do Mar Morto (GHERARDI & MICHELI 1989), para Goneplax rhomboides, Liocarcinus depurator e Macropipus tuberculatus e provenientes do litoral da Espanha (ABELLO & SARDA 1982, ABELLO et al 1990).…”

Section: Discussionunclassified

“…O crescimento alométrico positivo da largura da carapaça em fêmeas de Brachyura é descrito para Portunus spinimanus, Platyxanthus patagonicus, Calinectes ornatus, Armases angustipes, Austinograea williamsi (SANTOS et al 1995, CARSEN et al 1996, MANTELATTO & MARTINELLI 1999, KOWALCZUK & MASUNARI 2000, TSUCHIDA & FUJIKURA 2000. Entretanto, não há referências sobre crescimento isométrico em fêmeas adultas.…”

unclassified

Crescimento relativo em Uca leptodactyla Rathbun (Crustacea Decapoda Ocypodidae)

Masunari

Swiech-Ayoub

2003

Rev. Bras. Zool.

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“…Total carapace widths (CW), wet and dry weight (60 °C, during 48 hours) were measured. The dry weights of the brooded egg mass and number of eggs per brood (extrapolated from the dry weight of a counted sub-sample of 1000 eggs) were measured in order to determine the brood size (Hines, 1982;Mantelatto and Fransozo, 1997;Luppi et al, 1997;Leme, 2004). Although some authors (Mantelatto and Fransozo, 1997) recommend the use of embryos in developmental stages from late blastula to early gastrula for fecundity analysis, to avoid effects of embryonic diameter swelling during late stages of development, we considered here (following Hines, 1982;Luppi et al, 1997;Leme, 2004) also those embryos in the intermediate stage of development, as determined by formation of eyes.…”

Section: Methodsmentioning

confidence: 99%

“…The reproductive aspects and fecundity in brachyurans from the Neotropical region has been treated for different families, among them Portunidae (Mantelatto and Fransozo, 1997), Grapsidae and Varunidae (Spivak et al, 1996;Luppi et al, 1997;Conde et al, 2000;Leme, 2002Leme, , 2004, and Ocypodidae (Spivak et al, 1991;Costa et al, 2006). These papers refer mostly to Brazil and the Mar Chiquita Lagoon (Argentina).…”

Section: Introductionmentioning

confidence: 99%

Fecundity of Uca uruguayensis and Chasmagnathus granulatus (Decapoda, Brachyura) from the "Refugio de Vida Silvestre" Bahía Samborombón, Argentina

2007

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The aim of the present work conducted at the Refugio de Vida Silvestre Bahía Samborombón is to analyse the most relevant aspects of the fecundity of Chasmagnathus granulatus and Uca uruguayensis. Samplings were carried out from March 2001 to February 2003. Ovigerous females of U. uruguayensis (N = 13) and C. granulatus (N = 25) were found during spring and summer, their sizes (CW) varied from 9.1 to 11.7 mm for the former species and from 22.8 to 32.4 mm for the latter. The egg diameter in U. uruguayensis ranged from 245 to 260 µm for embryos in the early stage of development and from 250 to 345 µm for those in mid-developmental stage, while in C. granulatus from 250 to 345 µm and from 260 to 365 µm respectively. Fecundity varied from 1126 to 6745 eggs/brood in U. uruguayensis and 15688-57418 eggs/brood in C. granulatus. For those females with broods in mid-developmental stage, several relationships were made. For U. uruguayensis the best correlation coefficients were obtained for the relationships: female weight vs. egg mass weight and carapace width vs. egg mass weight; for C. granulatus the best association was obtained between female size and the egg number and the egg mass weight.Keywords: fecundity, Uca uruguayensis, Chasmagnathus granulatus, Argentina. Fecundidade deUca uruguayensis e Chasmagnathus granulatus (Decapoda, Brachyura) no "Refúgio de Vida Silvestre" Bahía Samborombón, Argentina Resumo O objetivo do presente trabalho foi analisar os aspectos mais relevantes da fecundidade de Chasmagnathus granulatus e Uca uruguayensis no Refúgio da Vida Silvestre Bahia Samborombón. As amostragens foram realizadas de março de 2001 a fevereiro de 2003. As fêmeas ovígeras de U. uruguayensis (N = 13) e de C. granulatus (N = 25) foram capturadas na primavera e verão. A largura da carapaça (LC) de U. uruguayensis variou de 9.1 a 11.7 mm, e de 22.8 a 32.4 mm para C. granulatus. O diâmetro dos ovos de U. uruguayensis variou de 245 a 260 µm para embriões em estágio de desenvolvimento inicial e de 250 a 345 µm para aqueles em estágio intermediário; para C. granulatus as variações foram de 250 a 345 µm e de 260 a 365 µm, respectivamente. A fecundidade de U. uruguayensis variou de 1126 a 6745 ovos/desova e para C. granulatus de 15688 a 57418 ovos/desova. Para as fêmeas com massa de ovos em estágio de desenvolvimento intermediário foram efetuadas várias relações: para U. uruguayensis os melhores coeficientes de correlação foram obtidos nas relações: peso da fêmea vs. peso da massa de ovos, e largura da carapaça vs. peso da massa de ovos. Para C. granulatus, a melhor associação foi obtida entre o número de ovos e o peso da massa de ovos.

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Fecundity of the Crab Callinectes Ornatus Ordway, 1863 (Decapoda, Brachyura, Portunidae) From the Ubatuba Region, São Paulo, Brazil

Cited by 121 publications

References 0 publications

Population and reproductive features of the western Atlantic hermit crab Pagurus criniticornis (Anomura, Paguridae) from Anchieta Island, southeastern Brazil

Population and reproductive features of the western Atlantic hermit crab Pagurus criniticornis (Anomura, Paguridae) from Anchieta Island, southeastern Brazil

Crescimento relativo em Uca leptodactyla Rathbun (Crustacea Decapoda Ocypodidae)

Fecundity of Uca uruguayensis and Chasmagnathus granulatus (Decapoda, Brachyura) from the "Refugio de Vida Silvestre" Bahía Samborombón, Argentina

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