Results 51 to 60 of about 1,027,081 (211)

Reproduction of Hypoptopoma inexspectatum (Holmberg, 1893) (Siluriformes, Loricariidae) in the Southern Pantanal Floodplain, Upper Paraguay River Basin, Brazil

open access: yesBrazilian Journal of Biology
This work aimed to describe the reproductive biology of Hypoptopoma inexspectatum in southern Pantanal. A total of 538 individuals were sampled and analyzed from February 2009 through January 2011 in southern Pantanal.
M. J. Pereira   +3 more
doaj   +1 more source

Effects of salinity on survival, growth, reproductive and life span characteristics of Artemia populations from Urmia Lake and neighboring lagoons [PDF]

open access: yes, 2008
This study deals with effects of different salinities on the survival, growth, reproductive and lifespan characteristics of three Artemia populations from Urmia Lake and small lagoons at the vicinity of the lake under laboratory conditions.
Agh, N.   +6 more
core  

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

open access: yesNauplius, 2018
Two recently described amphipods species from southern Brazil, Hyalella georginae Streck and Castiglioni, 2017 and Hyalella gauchensis Streck and Castiglioni, 2017, had their population structures characterized by sex, females’ ovigerous condition ...
Aline Vasum Ozga   +2 more
doaj   +1 more source

Male Reproductive Strategies in Black and Gold Howler Monkeys (Alouatta caraya) [PDF]

open access: yes, 2013
Behavioral and demographic factors such as group size, social structure, dispersal patterns, and mating systems affect male reproductive success. In the present study, we analyze the relationship between social structure, genetic relatedness of adult ...
Corach, Daniel   +2 more
core   +1 more source

Reproduction Period Of Javanese Women

open access: yesJournal of Nursing Care
A woman's reproductive life goes through several phases including menstruation, childbirth and menopause. The first menstrual event experienced by a woman is called menarche, while the end of the menstrual period is called menopause. The age intervals for menarche and menopause describe the reproductive period or fertile age for a woman to become ...
Eka Dewi Kusumawati   +2 more
openaire   +1 more source

Effect of timing and female quality on clutch size in the Collared Flycatcher Ficedula albicollis [PDF]

open access: yes, 2004
Capsule: Laying date and female age appear to be related to clutch size. Aims: To test two hypotheses ('date' and 'quality'), which might explain why fewer eggs are laid late in the season.
Garamszegi, László Zsolt   +2 more
core   +1 more source

Reproduction of the flatfish Achirus lineatus (Pleuronectiformes: Achiridae) in Paranaguá Bay, state of Paraná, a subtropical region of Brazil

open access: yesZoologia (Curitiba), 2010
The present study characterizes the oogenesis and the ovarian maturation scale, and determines the reproductive period, type of spawning, recruitment period, and population variations in the reproductive process of the flatfish Achirus lineatus (Linnaeus,
Elton C. de Oliveira   +1 more
doaj   +1 more source

Implications of fisheries during the spawning season for the sustainable management and recovery of depleted fish stocks: life history characteristics of several North Sea species [PDF]

open access: yes, 2009
Fish traders and NGOs have put the idea forward that in order to not disturb the spawning process and hence improve the reproductive success of a fish population one should stop fishing during the spawning period.
Overzee, H.M.J., van, Rijnsdorp, A.D.
core   +1 more source

Reproductive aspects of Octopus hubbsorum (Cephalopoda: Octopodidae) from Espíritu Santo Island, southern Gulf of California, Mexico

open access: yesCiencias Marinas, 2010
Reproductive aspects (spawning season, size and weight at maturity, and fecundity) of Octopus hubbsorum are reported for Espíritu Santo Island, southern Gulf of California (Mexico).
R Pliego-Cárdenas   +4 more
doaj   +1 more source

Reproductive aspects of the flyingfish, Hirundichthys affinis from the Northeastern coastal waters of Brazil

open access: yesBrazilian Journal of Biology
The epipelagic flyingfish, Hirundichthys affinis is a major artisanal fishery resource from the Northeastern coastal waters of Brazil. However, biological information about this species has been poorly documented.
MR. Oliveira   +4 more
doaj   +1 more source

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