Estimation of dynamic energy budget parameters for the Mediterranean toothcarp (Aphanius fasciatus)

Untitled

“…On the other hand, coefficients reported in the present study are in agreement with ranges proposed for A. fasciatus by Leonardos & Sinis (1999). As reported by Leonardos et al (1996), Leonardos & Sinis (1999), Cavraro et al (2014a) and Rinaldi et al (2014), a pronounced energy investment in somatic growth is observed in young organisms, followed by a decrease after the first age when specimens reach sexual maturation and slow down growth to cope with reproduction. Sex ratio (2.37) favors females and was similar to values observed for killifish during the reproductive period by Penaz & Zaki (1985), Leonardos & Sinis (1999) and Annabi et al (2013); interestingly, Mordenti et al (2008) and Alcaraz, Gholami, Esmaeili and García-Berthou (2015) found lower values, although the sex ratio was again in favor of females.…”

“…LT values showed wide overlapping ranges among age classes, in agreement with Leonardos & Sinis (1999), probably due to the A. fasciatus reproduction strategy, whose phases occur several times over the summer months. With regards to the growth of A. fasciatus within the studied area, regression models obtained for males and females did not differ significantly, in contrast with Penaz & Zaki (1985), Annabi et al (2013) and Rinaldi et al (2014). On the other hand, coefficients reported in the present study are in agreement with ranges proposed for A. fasciatus by Leonardos & Sinis (1999).…”

“…On the other hand, and in agreement with the Authors, older specimens were always females, indicating a higher longevity. However, female LT values were not higher than those observed for males within the same age class, in contrast with Mordenti et al Annabi, Said and Messaoudi (2013), Rinaldi et al (2014) and Brigolin, Cavraro, Zanatta, Pastres and Malavasi (2016). LT values showed wide overlapping ranges among age classes, in agreement with Leonardos & Sinis (1999), probably due to the A. fasciatus reproduction strategy, whose phases occur several times over the summer months.…”

A bioenergetics model of the entire life cycle of the three‐spined stickleback,gasterosteus aculeatus

“…When the focus is on the entire life cycle, and provided the assumptions of standard DEB theory apply, a DEB model would have fewer parameters than common bioenergetics models. DEB theory has been used to answer different questions in ecology of fishes: management in fisheries (Jusup, Klanjscek, Matsuda, & Kooijman, ), prediction of the growth and reproduction during spawning migration (Einarsson, Birnir, & Sigurosson, ; Pecquerie, Petitgas, & Kooijman, ) or under different environmental conditions (Rinaldi et al., ), and comparison of life strategies between species (Freitas et al., ; Pecquerie, Johnson, Kooijman, & Nisbet, ; van der Veer, Kooijman, & van der Meer, ). Moreover, nesting a DEB model within a population dynamics model provides realistic descriptions and predictions of population dynamics, especially when populations are facing food limitations (Beaudouin et al., ).…”

Low temperature trumps high food availability to determine the distribution of intertidal mussels Perna perna in South Africa

“…nl/thb/deb/deblab/debtool/) was used to estimate the DEB parameter values for Perna. This method employs the simultaneous minimization of weighted sum of squared deviations between a number of data sets and model predictions in a single-step procedure (Rinaldi et al 2014). When no empirical data were available, the covariate method was applied using parameters estimated from closely related species (Saraiva et al 2014).…”