Reproductive Strategies Under Different Environmental Conditions: Total Output vs Investment per Egg in the Slipper Lobster Scyllarus Arctus
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Reproductive Strategies Under Different Environmental Conditions: Total Output vs Investment per Egg in the Slipper Lobster Scyllarus ArctusFecha
2021-02-08Cita bibliográfica
Fernández L, García-Soler C, Alborés I (2021). Reproductive strategies under different environmental conditions: total output vs investment per egg in the slipper lobster Scyllarus arctus. Journal of the Marine Biological Association of the United Kingdom 101, 131–139. https://doi.org/10.1017/ S0025315421000035
Resumen
[Abstract] The slipper lobster Scyllarus arctus is an important fishery resource in Galicia (NW Iberian Peninsula), with a large reduction of its populations in recent decades in the North-east Atlantic and Mediterranean, but only limited information on its reproduction. This study provides an analysis of the reproductive potential of this scyllarid during two breeding cycles (2008 and 2009) in the NE Atlantic (43°20′N 8°50′W). We studied several reproductive traits (fecundity, brood weight, egg weight and volume) in broods with eggs both in an early and late embryonic stage, in relation to female size and temporal variations. Total output (fecundity and weight) and egg weight were closely linked to maternal size, and this relationship remained in broods with late-stage eggs. In relation to temporal variations, our data revealed an important seasonal variability in fecundity and egg weight, showing an inverse pattern in the reproductive strategy in the first two seasons of the reproductive period, with a maximum egg weight in winter (December–February) and a maximum number of eggs produced in spring (April–May). A predictive model for realized fecundity was developed: log (FE) = 0.064 + 2.907 log (length)−0.018 Month2 + 0.174 Month, which accounted for over 90% of variation in the total data.
Palabras clave
Marine crustaceans
Reproductive strategies
Scyllarid
Scyllarus arctus
Slipper lobster
Reproductive strategies
Scyllarid
Scyllarus arctus
Slipper lobster
Descripción
Financiado para publicación en acceso aberto: Universidade da Coruña/CISUG
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Derechos
Atribución 4.0 Internacional
ISSN
0025-3154
1469-7769
1469-7769