Reproductive bionomics and life history traits of three gammaridean amphipods, Cymadusa filosa Savigny, Ampithoe laxipodus Appadoo and Myers and Mallacoota schellenbergi Ledoyer from the tropical Indian Ocean (Mauritius)

Appadoo, Chandani; Myers, Alan A.

doi:10.1016/j.actao.2004.06.002

Cited by 32 publications

(31 citation statements)

References 31 publications

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“…In Itaipu Lagoon, low fecundity and large eggs of K. schubartii were observed in periods of low temperature and low chlorophyll-a, while high fecundity and small eggs occurred by the end of the wet season (according to Knoppers et al, 1999a, a period of higher temperature and food availability). The same situation was reported for amphipods (Kolding & Fenchel, 1981;Powell, 1992;Pardal et al, 2000;Maranhão et al, 2001;Appadoo & Myers, 2004), and other non-peracarid crustaceans (Marsden, 1991;Guisande & Gliwicz, 1992;Nicolau & Oshiro, 2002). K. schubartii is probably able to respond to environmental changes by decreasing its fecundity while increasing egg size in periods of both low temperature and low food availability, thus enabling the offspring to survive under harsh conditions (Guisande & Gliwicz, 1992;Maranhão et al, 2001).…”

Section: Study Areasupporting

confidence: 54%

Population Biology and Reproduction of Kalliapseudes Schubartii Mañé-Garzón, 1949 (Peracarida, Tanaidacea) in a Tropical Coastal Lagoon, Itaipu, Southeastern Brazil

Soares-Gomes¹,

Pennafirme²

2009

Crustac

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A population of the tanaidacean, Kalliapseudes schubartii Mañé-Garzón, 1949 was sampled monthly in order to study its life cycle in a southeastern Brazilian tropical lagoon. The species' density changed seasonally, increasing in the beginning of the wet season and presenting peaks following precipitation peaks in other periods. Density changed due to oscillations in numbers of larval stages and juveniles. Females were larger than males, and the size at onset of sexual maturity of females was 5.9 mm. The sex-ratio was female-skewed during all months, in accordance with studies of the same species at other sites along the Brazilian coast and on other species of tanaids. Ovigerous females and other developmental stages were observed in all samples. Peaks in the frequencies of larval stages and juveniles were followed by peaks in ovigerous female frequency. Comparisons of populations of K. schubartii at different sites along the Brazilian coast showed an intraspecific difference in their life cycles according to a latitudinal gradient, with longer reproductive activity occurring in the tropics. RÉSUMÉ[Les études de biologie des populations des espèces-proies fournissent des informations utiles pour la gestion de la ressource et aident à prévoir les changements à venir concernant les espèces exploitées commercialement.] Une population de tanaidacés Kalliapseudes schubartii Mañé-Garzón, 1949 a été échantillonnée mensuellement dans une lagune tropicale du sud-est du Brésil afin d'étudier son cycle de vie. Les résultats montrent une variation saisonnière de la densité, celle-ci augmentant au début de la saison des pluies et présentant des pics à la suite des précipitations pour les autres périodes de l'année. Les densités mesurées varient avec le changement de stade larvaire à juvénile. Les femelles sont plus grandes que les individus mâles, la taille de celles-ci au début de la maturité sexuelle est de 5,9 mm. Le «sex-ratio» apparaît déséquilibré pour chaque mois avec une prédominance des individus femelles, ce qui concorde avec des études réalisées chez la même 3 )

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Section: Study Areasupporting

confidence: 54%

Population Biology and Reproduction of Kalliapseudes Schubartii Mañé-Garzón, 1949 (Peracarida, Tanaidacea) in a Tropical Coastal Lagoon, Itaipu, Southeastern Brazil

Soares-Gomes¹,

Pennafirme²

2009

Crustac

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“…Females were more frequent than males, a result also observed for H. pleoacuta, H. castroi (see Castiglioni and Bond-Buckup, 2008b) and other amphipods (Powell and Moore, 1991;Cardoso and Veloso, 1996;Appadoo and Myers, 2004;Kevrekidis, 2004;2005). Deviations observed in sex ratio of H. bonariensis, as has been observed in other species of Hyalella, appear to be related to their reproductive behavior (Wellborn, 1994;1995;Wellborn and Cothran, 2007;Castiglioni and Bond-Buckup, 2008b).…”

Section: Population Dynamics Of a Freshwater Amphipodmentioning

confidence: 57%

Population dynamics of a freshwater amphipod from South America (Crustacea, Amphipoda, Hyalellidae)

et al. 2016

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Th is study aimed to characterize the population dynamics of Hyalella bonariensis Bond-Buckup, Araujo & Santos, 2008 from headwater spring in a rural area of state of Rio Grande do Sul, Brazil. Four samples were collected in August (winter) and October (spring) of 2012 and January (summer) and April (autumn) of 2013. Ovigerous females and precopula pairs were separated from other individual in the fi eld. A total of 5,266 specimens were sampled, being 1,878 males, 2,073 females (including 240 ovigerous females) and 1,315 juveniles. Th e frequency distribution of size classes (measured as cephalothorax length, CL) was polymodal and bimodal in males and females, respectively. Males reach larger size than females. Sexual maturity of males and females was estimated at 0.40 and 0.38 mm for CL, respectively. Total sex ratio favored females, and these were more frequent in intermediate size classes, while males were more frequent in larger size classes. Ovigerous females and couples were found in four seasons, but both were more abundant in winter. Juveniles were also found in all seasons, being more frequent in winter and spring. Th ese results showed that this H. bonariensis population has similar dynamics to other species of Hyalella Smith, 1874 from Brazil, but present variations when compared to other freshwater amphipods. keY wordsBody size, Hyalella, reproductive period, sex ratio, sexual maturity. Castiglioni et al.2

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“…Since growth, birth, reproduction, and mortality rates can be inferred, it is possible to predict if a population is expanding or declining to extinction (Cooper, 1965;Muskó, 1992). Population structure of amphipods has been studied through the analysis of density, size and age class distribution, sex-ratio, recruitment, and growth (Guerao, 2003;Appadoo and Myers, 2004;Kevrekidis, 2004Kevrekidis, , 2005Subida et al, 2005;Castiglioni and Bond-Buckup, 2008a).…”

Section: Introductionmentioning

confidence: 99%

Population structure of two freshwater amphipods (Crustacea: Peracarida: Hyalellidae) from southern Brazil

2018

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Reproductive bionomics and life history traits of three gammaridean amphipods, Cymadusa filosa Savigny, Ampithoe laxipodus Appadoo and Myers and Mallacoota schellenbergi Ledoyer from the tropical Indian Ocean (Mauritius)

Cited by 32 publications

References 31 publications

Population Biology and Reproduction of Kalliapseudes Schubartii Mañé-Garzón, 1949 (Peracarida, Tanaidacea) in a Tropical Coastal Lagoon, Itaipu, Southeastern Brazil

Population Biology and Reproduction of Kalliapseudes Schubartii Mañé-Garzón, 1949 (Peracarida, Tanaidacea) in a Tropical Coastal Lagoon, Itaipu, Southeastern Brazil

Population dynamics of a freshwater amphipod from South America (Crustacea, Amphipoda, Hyalellidae)

Population structure of two freshwater amphipods (Crustacea: Peracarida: Hyalellidae) from southern Brazil

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