Trophic Ecology of Benthic Marine Invertebrates with Bi-Phasic Life Cycles

Calado, Ricardo; Leal, Miguel C.

doi:10.1016/bs.amb.2015.07.001

Cited by 56 publications

(28 citation statements)

References 295 publications

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“…In crustacean species with complex life cycles that include various ontogenetic phases (incubated embryos, free swimming planktonic larvae, benthic juveniles and adults), it is necessary to study the physiology and bioenergetics of each ontogenetic stage in order to understand the possible effects that trawling might have on the life cycle of these organisms (for concepts see Giménez, ; Kooijman, ). In this context, the study of embryos and larvae is particularly relevant given that these stages represent sources of new individuals to populations (Wenner & Kuris, ); in turn, these stages of development are highly vulnerable to environmental variability, which can influence survival at later stages (Calado & Leal, ).…”

Section: Introductionmentioning

confidence: 99%

Seasonal changes in the biochemical composition of females and offspring of red squat lobster, Pleuroncodes monodon (Decapoda, Munididae), from the Southeastern Pacific

et al. 2017

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Pleuroncodes monodon is an important fishery resource and key species from the Southeastern Pacific. During its prolonged reproductive period (from February to December), ovigerous females are exposed to seasonal variation in environmental factors (e.g. temperature and food availability), with higher levels of these environmental parameters during summer and lower in winter, and must adjust their biochemistry to ensure their own survival and that of their embryos. The aim of this study was to analyse seasonal changes in the biochemical composition of ovigerous females and their eggs. The data show that the content of lipids, proteins and organic matter in the hepatopancreases of females was significantly higher in winter than in summer.Similarly, the lipid content of the eggs was significantly higher in winter than in summer, yet the protein content of the eggs had the opposite pattern with greater values found in summer. Consistent with the 'reproductive energetic model', the initial and final energy produced by the hepatopancreas showed significant seasonal variations, whereas female investment in egg production (in absolute values) did not show significant seasonal differences. The seasonal differences observed in the biochemistry, organic matter and energy content of the female hepatopancreases may be related to the storage of energy for growth and reproduction. Furthermore, the seasonal variation in the content of lipids, proteins and energy in eggs is likely related to embryogenesis and larval hatching in function with environmental conditions. Seasonal variation in the biochemical composition of P. monodon has direct effects on the marine food web and also upon fisheries.

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Section: Introductionmentioning

confidence: 99%

Seasonal changes in the biochemical composition of females and offspring of red squat lobster, Pleuroncodes monodon (Decapoda, Munididae), from the Southeastern Pacific

et al. 2017

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“…For example, in Crangon crangon (Linnaeus, 1758), in the first decapodid stage, at least two forms can be distinguished, differing primarily in the developmental state of the antennae, the maxillipeds, the pereiopods, and the pleopods (Linck, 1995). Brossi-Garcia and Hebling (1983) found more setae on the scaphognathite of the maxilla of the Brazilian population; this could be explained by the availability of food affecting the life cycle of many benthic marine invertebrates, with significant implications for their survival, growth and metamorphosis (Calado and Leal, 2015;Pechenik and Tyrell, 2015). It has been found that the morphology of the feeding structures is more developed in the megalopa and juveniles, and the mouthparts present an increasing number of setae compared to previous developmental stages, which indicates that these stages are more able to capture food and they are capable of processing solid food available in their benthonic environment (Abrunhosa et al, 2006).…”

Section: Discussionmentioning

confidence: 95%

Intraspecific variation in megalopae of Clibanarius antillensis (Anomura, Diogenidae) among western Atlantic populations

et al. 2018

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The objective of this study was to describe the morphology of Clibanarius antillensis Stimpson, 1859 megalopae collected in the vicinity of Isla Sacrificios, Mexico, and compare it to previous descriptions originated from Brazilian and Panamanian specimens raised in laboratory conditions. We found four meristic differences between the Brazilian and the Panamanian and Mexican populations with the Brazilian population: the outer flagellum of antennule in the Panamanian and Mexican populations has more aesthetascs on the second, third, and fourth segments of the outer flagellum (0, 6, 5, 3, 0) than the Brazilian population (0, 4, 4, 2, 0); the maxilla has more setae on the scaphognathite in the Brazilian specimens (70) than in the Mexican and Panamanian specimens (49-62); the crista dentata of the third maxilliped is formed by only three denticles in the Brazilian specimens, while 4 or 6 denticles form the same structure in the Panamanian and Mexican populations; there are fewer number of setae on the endopod of the uropod in the Brazilian population. The differences may be explained by intraspecific variation.

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“…As these larval traits are influenced by the female's energetic investment, they may also be affected by the biochemical condition of the females. Along these lines, studies have shown that female mollusks have higher protein and lipid contents in their hepatopancreas in winter than in summer; a potential adaptive response to provide larvae with higher energetic reserves during periods of low food availability (Bascur, Guzmán, Mora, Espinoza, & Urzúa, ; Calado & Leal, ).…”

Section: Discussionmentioning

confidence: 99%

Bioenergetics of parental investment in two polychaete species with contrasting reproductive strategies: The planktotrophicBoccardia chilensisand the poecilogonicBoccardia wellingtonensis(Spionidae)

et al. 2019

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The level of parental investment for larval nutrition may determine the life cycle in marine invertebrate species laying egg masses or capsules, where the food available for enclosed individuals would determine time and developmental stage of hatching. Most species show a unique type of larval development. However, few species are poecilogonous and combine more than one development type. Poecilogony, although scarcely studied, allows comparing different patterns of parental reproductive investment, without the phylogenetic effect of the species ancestral modes of development (phylogenetic inertia), to help to understand the factors determining life strategy evolution in marine invertebrates. The poecilogonous polychaete worm Boccardia wellingtonensis encapsulates and incubates its offspring, which then hatches as either planktotrophic larvae or benthic juveniles; while Boccardia chilensis shows a non‐poecilogonous reproductive type, producing only planktotrophic larvae. In this work, we estimated the bioenergetic and biochemical composition of brooding and non‐brooding females of B. wellingtonensis and B. chilensis to compare the costs of reproduction in these two species. Results showed that glucose, protein, lipid, and energy content were significantly higher in non‐brooding than in brooding females of B. wellingtonensis; but also contained significantly more glucose, protein, and lipid than females of B. chilensis (in absolute and relative dry weight values). The poecilogonous species showed higher energy content previous to laying offspring. Our results support the idea that the evolution of a certain reproductive and life history traits in marine invertebrates is related to adaptations in the female's reproductive investment.

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Trophic Ecology of Benthic Marine Invertebrates with Bi-Phasic Life Cycles

Cited by 56 publications

References 295 publications

Seasonal changes in the biochemical composition of females and offspring of red squat lobster, Pleuroncodes monodon (Decapoda, Munididae), from the Southeastern Pacific

Seasonal changes in the biochemical composition of females and offspring of red squat lobster, Pleuroncodes monodon (Decapoda, Munididae), from the Southeastern Pacific

Intraspecific variation in megalopae of Clibanarius antillensis (Anomura, Diogenidae) among western Atlantic populations

Bioenergetics of parental investment in two polychaete species with contrasting reproductive strategies: The planktotrophicBoccardia chilensisand the poecilogonicBoccardia wellingtonensis(Spionidae)

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