Population dynamics of the common shrimp, Crangon crangon (L.), in Port Erin Bay, Isle of Man, Irish Sea

Oh, Chul‐Woong; Hartnoll, Richard G.; Nash, Richard D.M.

doi:10.1006/jmsc.1999.0501

Cited by 85 publications

(58 citation statements)

References 30 publications

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“…However, shifts in size at first maturity in fish are commonly reported (Beacham 1983;Gerritsen et al 2003;Armstrong et al 2004). Among shrimps, Oh et al (1999) compared size at first maturity in Crangon crangon over four years and observed no major differences in this parameter through time. On the other hand, in agreement with our results in M. acanthurus, size at first maturity is reported to decrease during warm months and when reproduction is intense in other shrimps (e.g.…”

Section: Discussionmentioning

confidence: 92%

A test of large-scale reproductive migration in females of the amphidromous shrimp Macrobrachium acanthurus (Caridea : Palaemonidae) from south-eastern Brazil

Bertini

Baeza

Pérez

2014

Mar. Freshwater Res.

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Abstract. Macrobrachium acanthurus inhabits estuaries and rivers in the western Atlantic. It is not clear whether females migrate towards estuaries to hatch larvae, as reported for other congeneric shrimps. We tested whether females of M. acanthurus exhibit reproductive migrations. The population dynamics of this shrimp was studied in the Ribeira de Iguape River, Brazil. Four sites that differ in position with respect to the coast were sampled monthly during 2007. In M. acanthurus, reproduction was seasonal and reproductive intensity did not vary among study sites. Females brooding early and late embryos were found at all study sites during the reproductive season. No disappearance of reproductive females was observed at the study site located furthest away (,150 km) from the coast. Thus, reproductive females of M. acanthurus do not exhibit reproductive migrations towards estuaries to hatch larvae. Maturity in females was reached at smaller body sizes during the austral summer and spring compared with winter and autumn. Growth rate and body size was sex-specific; males grew slower but attained larger average and final body sizes than females. This information needs to be considered in assessing stocks and establishing sustainable management plans for M. acanthurus in Brazil.

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Section: Discussionmentioning

confidence: 92%

A test of large-scale reproductive migration in females of the amphidromous shrimp Macrobrachium acanthurus (Caridea : Palaemonidae) from south-eastern Brazil

Bertini

Baeza

Pérez

2014

Mar. Freshwater Res.

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“…Palaemon pandaliformis Stimpson, 1871 of a population from Canavieiras, state of Bahia, Brazil: linear regression of morphometric log transformed data and analysis of covariance (ANCOVA) between sex regressions lines (r2, determination coefficient; A, allometry; *, statistically significant at p < 0.05; •, b ≠ 3). Other abbreviations see Table I Wenner et al (1985) and Oh et al (1999) stated that variations in maturity sizes are common in crustaceans, caused by variations in growth rate and several degrees of variability that may occur on a seasonal basis in a single habitat or in different locations. A low number of ovigerous females under the CL 50 measure were found in this study, only tree.…”

Section: Discussionmentioning

confidence: 99%

Relative growth and sexual maturity of the freshwater shrimp Palaemon pandaliformis (Crustacea, Palaemonidae) in northeastern of Brazil (Canavieiras, Bahia)

Paschoal

Guimarães

Couto

2013

Iheringia, Sér. Zool.

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ABSTRACT. This study comprises the description of relative growth and sexual maturity of a population of Palaemon pandaliformis Stimpson, 1871 in Salsa River (Northeastern Brazil). Samples were collected monthly between September 2009 and August 2010. Females were larger, heavier, and showed a greater allometric coefficient (b) than male specimens. Only carapace length vs. pleura length in females presented a significant difference in the relative growth pattern, indicating a puberty moult. This relationship is strictly correlated to reproduction and its success rate in female shrimps. Estimated carapace length in 50% of mature females (CL 50 ) was 4.53 mm. It was not possible to compare obtained CL 50 results due to a lack of studies on this species. Comparison was based on the size of the smallest captured ovigerous female (3.81 CL mm), which is within the scope of recorded size for estuaries located in higher latitudes. This study reveals the lack of research on this genre in freshwater environments on a national and global scale. KEYWORDS.Caridea, allometric growth, morphometric relationships. RESUMO.Crescimento relativo e maturidade sexual de Palaemon pandaliformis (Crustacea, Palaemonidae) no Nordeste do Brasil (Canavieiras, Bahia). Foram descritos o crescimento relativo e a maturidade sexual de uma população de Palaemon pandaliformis Stimpson, 1871 do rio Salsa (Nordeste do Brasil). As coletas foram realizadas mensalmente entre setembro de 2009 e agosto de 2010. As fêmeas foram maiores, mais pesadas e exibiram um coeficiente alométrico (b) maior que os machos. Apenas a relação comprimento de carapaça vs. comprimento de pleura nas fêmeas, apresentou uma diferença significativa no padrão de crescimento relativo, evidenciando a muda da puberdade. Esta relação é estritamente correlacionada aos eventos reprodutivos e ao sucesso deste em fêmeas de carídeos. O comprimento da carapaça em que 50% das fêmeas estão maduras (CL 50 ) foi estimado em 4,53 mm. Não foi possível comparar os resultados de CL 50 obtidos devido à falta de estudos enfocando a espécie. A comparação foi feita através do tamanho da menor fêmea ovígera capturada (3,81 CL mm), o qual está dentro da amplitude de tamanho registrada para estuários localizados em latitudes mais elevadas. Este trabalho aponta a falta de estudos para este gênero em ambientes dulceaquícolas, uma vez que estes são raros, mesmo em escala nacional e global. PALAVRAS-CHAVE.Caridea, crescimento alométrico, relações morfométricas.

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“…ODinetz-collart & Rabelo (1996) and Oh et al (1999) state that fecundity of a same species may vary due to environmental factors, food availability, variability in egg size and volume, individual age and size, and physiological conditions. Comparing our fecundity data with that of literature, we observed that fecundity is slightly greater in higher latitudes (Table 2).…”

Section: Reproductionmentioning

confidence: 99%

Growth and reproductive biology of the amphidromous shrimp Palaemon pandaliformis (Decapoda: Caridea) in a Neotropical river from northeastern Brazil

Paschoal¹,

Guimarães²,

Couto³

2016

Zoologia (Curitiba)

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Population dynamics of the common shrimp, Crangon crangon (L.), in Port Erin Bay, Isle of Man, Irish Sea

Cited by 85 publications

References 30 publications

A test of large-scale reproductive migration in females of the amphidromous shrimp Macrobrachium acanthurus (Caridea : Palaemonidae) from south-eastern Brazil

A test of large-scale reproductive migration in females of the amphidromous shrimp Macrobrachium acanthurus (Caridea : Palaemonidae) from south-eastern Brazil

Relative growth and sexual maturity of the freshwater shrimp Palaemon pandaliformis (Crustacea, Palaemonidae) in northeastern of Brazil (Canavieiras, Bahia)

Growth and reproductive biology of the amphidromous shrimp Palaemon pandaliformis (Decapoda: Caridea) in a Neotropical river from northeastern Brazil

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