Population Structure of the Shrimp Alpheus estuariensis (Caridea: Alpheidae) in a Tropical Estuarine Tidal Mudflat

Costa-Souza, Ana Carla; Souza, José Roberto Botêlho de; Araújo, Marina de Sá Leitão Câmara de; Almeida, Alexandre Oliveira

doi:10.1007/s41208-017-0036-z

Cited by 6 publications

(3 citation statements)

References 47 publications

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“…In a study on the population structure of A. carlae on the northern coast of São Paulo, Mossolin et al (2006) estimated the CL ∞ of males and females as 13.90 mm and 14.90 mm, respectively, and longevity as ~1.20 years. A similar result was found for A. estuariensis in the northeastern coast of Brazil by Costa-Souza et al (2017) in which there was no difference between the growth parameters of males and females (Tab. 2).…”

Section: Growth Longevity and Mortality Of Alpheus Brasileirosupporting

confidence: 85%

Growth, age at sexual maturity, longevity and natural mortality of Alpheus brasileiro (Caridea: Alpheidae) from the south-eastern coast of Brazil

2020

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We estimated the growth patterns, age at the onset of sexual maturity, longevity, and natural mortality of the snapping shrimp Alpheus brasileiro Anker, 2012. The sampling occurred monthly from April 2015 to March 2016 in the estuarine intertidal zone of Cananéia, São Paulo, Brazil. To estimate the growth parameters, all cohorts were adjusted to the Bertalanffy growth model. Longevity was estimated by the inverse growth equation. Natural mortality was calculated following the decrease in abundance over time of each cohort. We obtained the following estimates: CL ∞ = 9.49 mm, k = 0.0077 day-1 (1.64 year-1), t 0 =-0.7628 for males, and CL ∞ = 9.31 mm, k = 0.0095 day-1 (1.32 year-1), t 0 = 0.0374 for females. The estimated age at the onset of morphological sexual maturity was 94 and 74 days for males and females, respectively. Females take 89 days to reach functional maturity, and have a higher mortality (4.35 year-1) than males (3.67 year-1). We rejected the hypothesis that males and females of A. brasileiro have the same growth patterns, longevity, mortality and, reaches sexual maturity at the same age. Our results suggest that physiological aspects and energy allocation strategies modulate the growth, longevity, and mortality of these snapping shrimps.

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Section: Growth Longevity and Mortality Of Alpheus Brasileirosupporting

confidence: 85%

Growth, age at sexual maturity, longevity and natural mortality of Alpheus brasileiro (Caridea: Alpheidae) from the south-eastern coast of Brazil

2020

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“…Although Alpheus is the most representative genus of its family (Anker et al, 2006;De Grave and Fransen, 2011), studies about its population biology are scarce compared to knowledge about its taxonomy and diversity. This could be due to the presence of several species complexes (Mathews and Anker, 2009;Costa-Souza et al, 2018) and because these species are ecologically enigmatic (Felder, 1982), which according to Costa-Souza et al (2018) makes monthly sampling difficult and contributes to the lack of knowledge about this group. Alpheus formosus Gibbes, 1850 can be found in most of the Western Atlantic: Bermuda, North Carolina, Florida, Gulf of Mexico, Bahamas, West Indies, Central America, Colombia, and Venezuela (Christoffersen, 1998;Cunha et al, 2015;Anker et al, 2016).…”

Section: Ecological Notes Of Alpheus Formosusmentioning

confidence: 99%

Biological and ecological notes about the snapping shrimp Alpheus formosus Gibbes, 1850 from two continental islands in São Paulo State - Brazil

et al. 2020

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While previous studies on Alpheus formosus Gibbes, 1850 focused on taxonomic and phylogenetic issues, the present study provides information on the biology and ecology of this snapping shrimp, a representative coral reef species widely distributed in the Atlantic Ocean. We studied A. formosus between 2015 and 2016 on two islands in São Paulo state, Brazil: Laje de Santos and Vitoria Island. We analyzed 47 specimens from Laje de Santos and 44 from Vitoria Island. Individuals ranged in size from 2.0 mm to 13.99 mm CL. The mean number of embryos attached to the pleopods of females was 211.28 ± 312.8 in Laje de Santos and 125.2 ± 177.8 in Vitoria Island. This species should be included in monitoring programs of coral ecosystems they inhabit as A. formosus represents a key element in trophic dynamics of these ecosystems.

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“…Meanwhile, males are not limited to this molt-related breeding cycle. The estimated longevity for snapping shrimp ranges from 13 to 16 months ( Costa-Souza et al, 2018 ; Mossolin et al, 2006 ).…”

Section: Introductionmentioning

confidence: 99%

Tradeoffs explain scaling, sex differences, and seasonal oscillations in the remarkable weapons of snapping shrimp (Alpheus spp.)

Dinh

Patek

2023

eLife

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Evolutionary theory suggests that individuals should express costly traits at a magnitude that optimizes the cost-benefit difference for the trait-bearer. Trait expression varies across a species because costs and benefits vary among individuals. For example, if large individuals pay lower costs than small individuals, then larger individuals should reach optimal cost-benefit differences at a greater magnitude of trait expression. Using the remarkable cavitation-shooting weapons found in the big claws of male and female alpheid snapping shrimp, we test whether size- and sex-dependent expenditures explain the scaling of weapon size relative to body size and why males have larger proportional weapon size than females. We found that males and females from three snapping shrimp species (Alpheus heterochaelis, Alpheus angulosus, and Alpheus estuariensis) show patterns consistent with resource allocation tradeoffs between weapon and abdomen size. For male A. heterochaelis, the species for which we had the greatest sample size and statistical power, the smallest individuals showed the steepest tradeoff. Our extensive dataset in A. heterochaelis also included data about pairing, breeding season, and egg clutch size. Therefore, we could test for reproductive tradeoffs and benefits in this species. Female A. heterochaelis exhibited additional tradeoffs between weapon size and egg count, average egg volume, and total egg mass volume. For average egg volume, the smallest females exhibited the steepest tradeoff relative to weapon size. Furthermore, in males but not females, large weapons were positively correlated with the probability of being paired and the relative size of their pair mate. In conclusion, we establish that size-dependent tradeoffs underlie reliable scaling relationships of costly traits. Furthermore, we show that males and females differ in weapon investment, suggesting that weapons are especially beneficial to males and especially burdensome to females.

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Population Structure of the Shrimp Alpheus estuariensis (Caridea: Alpheidae) in a Tropical Estuarine Tidal Mudflat

Cited by 6 publications

References 47 publications

Growth, age at sexual maturity, longevity and natural mortality of Alpheus brasileiro (Caridea: Alpheidae) from the south-eastern coast of Brazil

Growth, age at sexual maturity, longevity and natural mortality of Alpheus brasileiro (Caridea: Alpheidae) from the south-eastern coast of Brazil

Biological and ecological notes about the snapping shrimp Alpheus formosus Gibbes, 1850 from two continental islands in São Paulo State - Brazil

Tradeoffs explain scaling, sex differences, and seasonal oscillations in the remarkable weapons of snapping shrimp (Alpheus spp.)

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