Factors affecting egg production in the selfing mangrove rivulus ( Kryptolebias marmoratus )

Zoology ◽  
2017 ◽  
Vol 122 ◽  
pp. 38-45 ◽  
Author(s):  
Justin L. Lomax ◽  
Rachel E. Carlson ◽  
Judson W. Wells ◽  
Patrice M. Crawford ◽  
Ryan L. Earley
2019 ◽  
Vol 95 (4) ◽  
pp. 1013-1021
Author(s):  
Irene Yin‐Liao ◽  
Patricia A. Wright ◽  
Frédéric Laberge

2003 ◽  
Vol 74 (3) ◽  
pp. 239-242
Author(s):  
Aduli Enoch Othniel MALAU-ADULI ◽  
Gideon Shaibu BAWA ◽  
Kayode JOEL

1959 ◽  
Vol 38 (4) ◽  
pp. 757-766 ◽  
Author(s):  
Marshall M. Miller ◽  
J.H. Quisenberry

Author(s):  
Alessandra Carion ◽  
Julie Hétru ◽  
Angèle Markey ◽  
Victoria Suarez-Ulloa ◽  
Silvestre Frédéric

Mangrove rivulus, Kryptolebias marmoratus, is a hermaphrodite fish capable of self-fertilization. This particularity allows to naturally produce highly homozygous and isogenic individuals. Despite the low genetic diversity, rivulus can live in extremely variable environments and adjust its phenotype accordingly. This species represents a unique opportunity to clearly distinguish the genetic and non-genetic factors implicated in adaptation and evolution, such as epigenetic mechanisms. It is thus a great model in aquatic ecotoxicology to investigate the effects of xenobiotics on the epigenome, and their potential long-term impacts. In the present study, we used the mangrove rivulus to investigate the effects of the neurotoxin ß-N-methylamino-L-alanine (BMAA) on larvae behaviors after 7 days exposure to two sub-lethal concentrations. Results show that BMAA can affect the maximal speed and prey capture (trials and failures), suggesting potential impacts on the organism’s fitness.


2018 ◽  
Vol 8 (12) ◽  
pp. 6016-6033 ◽  
Author(s):  
Alexandre Fellous ◽  
Tiphaine Labed-Veydert ◽  
Mélodie Locrel ◽  
Anne-Sophie Voisin ◽  
Ryan L. Earley ◽  
...  

Author(s):  
Martin Sheader

A study was made of the life cycle and reproductive ecology of Gammarus duebeni in the Test Estuary on the south coast of England. The species is towards the southern limit of its distributional range in the north-east Atlantic, which results in breeding continuing throughout much of the year. The breeding strategy employed was found to vary with season. The size of eggs produced and the rate of egg production were both temperature dependent, whereas the proportion of production expended on eggs and the number of eggs per brood, although probably influenced by temperature appeared to be controlled by food availability and female size. Factors affecting the mortality of eggs within the marsupium and breeding synchrony were considered in relation to season. The life cycle consisted of two major overlapping generations.


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