Buscar
Mostrando ítems 1-10 de 195
Effect of multiple spawning on female reproductive output and offspring quality in a freshwater caridean shrimp with direct development
(Wiley Blackwell Publishing, Inc, 2018-03)
The decline with age in components of fitness is variable among different taxa and includes changes in fertility and brood quality. In this study, we selected individuals of Neocaridina davidi, a freshwater shrimp with ...
Genetic parameters in female reproductive traits of Nile tilapia (Oreochromis niloticus)
(2017-01-01)
Genetic parameters for reproductive traits in female Nile tilapia were estimated in this study using Bayesian inference method. The data set presented information from 451 Nile tilapia females that were evaluated at two ...
Characterization of the quality of the gametes and sex steroid levels during spring and summer spawning events in pejerrey Odontesthes bonariensis reared under natural conditions of temperature and photoperiod
(Wiley Blackwell Publishing, Inc, 2020-01)
Pejerrey Odontesthes bonariensis spawning period takes place during the end of winter and spring and, depending on temperature conditions, during late summer and autumn. Nevertheless, the occurrence and quality of the ...
Dynamics of ovarian maturation during the reproductive cycle of Metynnis maculatus, a reservoir invasive fish species (Teleostei: Characiformes)
(Sociedade Brasileira de Ictiologia, 2013)
Neste estudo, avaliamos a dinâmica da maturação ovariana a desova durante o ciclo reprodutivo de Metynnis maculatus. Fêmeas adultas (n = 36) foram coletadas bimestralmente entre abril de 2010 e março de 2011. O índice ...
Dynamics of ovarian maturation during the reproductive cycle of Metynnis maculatus, a reservoir invasive fish species (Teleostei: Characiformes)
(Sociedade Brasileira de Ictiologia, 2014)
Dynamics of ovarian maturation during the reproductive cycle of Metynnis maculatus, a reservoir invasive fish species (Teleostei: Characiformes)
(Sociedade Brasileira de Ictiologia, 2014)
Reproductive cycle of the swimming crab Portunus spinimanus Latreille (Crustacea, Decapoda, Brachyura) from Ubatuba, São Paulo, Brazil
(Sociedade Brasileira de Zoologia, 1999-01-01)
This study analyses some reproductive aspects of Portunus spinimanus Latreille, 1819, a crab usually commercialized in Ubatuba region. Monthly otter-trawl collections were taken for two years along the northern coast of ...
Multiple spawning and length of embryonic development of Munida gregaria in northern Patagonia (Argentina)
(Cambridge University Press, 2008-08)
Munida gregaria is a small galatheid widely distributed around the southern hemisphere, considered a key species in food webs of coastal and shelf marine ecosystems. Previous studies conducted at 55°S and 46°S on the ...
Reproductive biology and space-time modelling of spawning for sailfish Istiophorus platypterus in the western Atlantic Ocean
(Taylor & Francis As, 2018)
This study presents data and estimates reproductive parameters of the sailfish Istiophorus platypterus (Shaw, 1792) in the western Atlantic, useful for future stock assessments of the species in the Atlantic Ocean. During ...
Assessment of reproductive capacity in females of Smith, 1869 (Brachyura, Portunoidea) during a period of high reproductive activity
(2014)
The reproductive capacity of the swimming crab Callinectes danae Smith, 1869 was assessed based on the reproductive investment (RI) of ovigerous females and the gonadosomatic index (GI) of non-ovigerous adult females. Crabs ...