Spatio-temporal variability in fatty acid trophic biomarkers in stomach contents and muscle of Iberian sardine (Sardina pilchardus) and its relationship with spawning

Garrido, Susana; Rosa, Rui; Ben-Hamadou, Radhouan; Cunha, Maria Emília; Chı́charo, Maria Alexandra; Lingen, Carl D. van der

doi:10.1007/s00227-008-0999-7

Cited by 48 publications

(36 citation statements)

References 33 publications

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“…Sardines feed intensively during the reproductive resting phase; however, during spawning sardines can also feed, but nutrients are mobilized for the gonadal tissue, not being accumulated (Garrido et al, 2008). Our results for all analyzed subpopulations are in line with previously published data, showing that the reproductive activity varied inversely in relation to the somatic condition and fat accumulation, which occurred mainly during Summer (Silva et al, 2006;Ganias, 2009;Nunes et al, 2011).…”

Section: Wwwfrontiersinorgsupporting

confidence: 90%

“…The spawning season is responsible for the All factors are fixed. mobilization of high-energy reserves, mainly obtained by conversion of lipids previously accumulated, or resulting from feeding during the spawning period (Garrido et al, 2008;Nunes et al, 2011). Immediately after the spawning season (with a strong reduction of the GSI), it is possible to observe a distinct period, known as ovary resting phase, during which the fish improves its condition (Kleinkauf et al, 2004;Nunes et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…Immediately after the spawning season (with a strong reduction of the GSI), it is possible to observe a distinct period, known as ovary resting phase, during which the fish improves its condition (Kleinkauf et al, 2004;Nunes et al, 2011). Availability of nutrients during this phase is critical, since it conditions the amount of fat reserves that are accumulated before the spawning season, thus influencing reproduction (Garrido et al, 2008). Seasonal variations in the amount of fat in tissues of S. pilchardus are a result of their location during the spawning season, and the maturation status of gonadal tissue can be related to the seasonality of the diet, and to the water temperature (Garrido et al, 2008;Ganias, 2009).…”

Section: Discussionmentioning

confidence: 99%

“…Availability of nutrients during this phase is critical, since it conditions the amount of fat reserves that are accumulated before the spawning season, thus influencing reproduction (Garrido et al, 2008). Seasonal variations in the amount of fat in tissues of S. pilchardus are a result of their location during the spawning season, and the maturation status of gonadal tissue can be related to the seasonality of the diet, and to the water temperature (Garrido et al, 2008;Ganias, 2009). According to Chícharo (1998), spawning is modulated by water temperature, and only occurs at temperatures between 14 and 16 • C; this may explain the differences observed among the three sampling sites, in terms of the quantified indexes.…”

Section: Discussionmentioning

confidence: 99%

“…Mature individuals mate at the end of the first year of life (Stratoudakis and Silva, 2001) and the most active spawning period occurs when the temperature is comprised between 14 and 16 • C, which usually corresponds to winter and spring (Chícharo, 1998;Nunes et al, 2011). The physiological condition of S. pilchardus seems to be linked to its reproductive cycle (Amenzoui et al, 2006;Garrido et al, 2008;Nunes et al, 2011). Literature on the use of S. pilchardus as an environmental sentinel has shown its contamination by anthropogenic compounds, namely metals (Canli and Atli, 2003;Cabañero et al, 2005;Falcó et al, 2006), but also polycyclic aromatic hydrocarbons, polychlorinated biphenyls, and pesticides (Amado et al, 2006;Antunes et al, 2007;El Morsy et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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Biochemical and physiological modifications in tissues of Sardina pilchardus: spatial and temporal patterns as a baseline for biomonitoring studies

Nunes

Travasso

Gonçalves

et al. 2015

Front. Environ. Sci.

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Sardina pilchardus is a marine species common in the North Atlantic Ocean, and is subjected to diffuse anthropogenic chemical contamination and seasonal fluctuations in biotic and abiotic parameters that may alter its physiology and condition. Biological material is easily available through commercial fisheries, which could facilitate its use as a bioindicator species. The aim of the present work was to address its potential inclusion in biomonitoring studies, considering a combinatory approach through the use of enzymatic biomarkers and somatic indices, by assessing spatial and temporal patterns in a metapopulation along the west coast of Portugal. Our results showed significant variability of the biochemical and physiological profile of the fish, mainly concordant between sampling sites. Large differences for most markers were found across periods of the year, showing the importance of seasonality, which was mostly related to the reproductive cycle. Hence, environmental scientists should acknowledge seasonality as a strong driving force for physiological adaptations, influencing biochemical markers that are normally used to identify effects of chemical contamination. The here-obtained set of data suggests that S. pilchardus may be successfully included in oceanic biomonitoring studies, when one considers that the contribution of seasonal factors may exceed the influence of eventual anthropogenic contamination.

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Section: Wwwfrontiersinorgsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biochemical and physiological modifications in tissues of Sardina pilchardus: spatial and temporal patterns as a baseline for biomonitoring studies

Nunes

Travasso

Gonçalves

et al. 2015

Front. Environ. Sci.

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2013

Condition and Health Indicators of Exploited Marine Fishes

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High‐throughput sequencing and fatty acid profile analyses of the Black Amur bream (Megalobrama terminalis) reveal variation in dietary niche associated with geographic segregation

Liu,

Li,

Chen

et al. 2024

Ecology and Evolution

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Fish dietary niche is a core focus, and it reflects the diversity of resources, habitats, or environments occupied by a species. However, whether geographic segregation among different populations triggers dietary diversification and concomitant fish niche shift remains unknown. In the present study, we selected the Black Amur bream (Megalobrama terminalis) is a migratory fish species that plays an important role in the material transfer and energy cycling of river ecosystems, inhabiting southern China drainage with multiple geographic populations. Here, we utilized the combined analyses of 18S rDNA high‐throughput sequencing in fish gut contents and fatty acid (FA) in muscle tissues to evaluate potential spatial patterns of habitat and resource use for M. terminalis in three rivers of southern China. Our results showed that prey items of the Xijiang (XR) population (Pearl River) exhibited the highest species diversity and richness among the three geographic populations. Moreover, diet composition of M. terminalis was affected by spatial differences associated with geographic segregation. Analyses of FA biomarkers indicated that the highest levels of C16:0, C18:3n‐3, and C18:2n‐6c were found in Wanquan (WS) population (Wanquan River). The XR population exhibited a distinct FA profile characterized by higher amounts of arachidonic acid (ARA) and docosahexaenoic acid (DHA). The Moyang (MY) population (Moyang River) acted as the linkage between WS and XR populations and consisted of middle levels of saturated FAs (SFAs) and polyunsaturated FAs (PUFAs). The XR population displayed a greater FA niche width compared with WS population. Furthermore, we observed a close positive relationship between the niche width and α‐diversity indices of dietary resources for FA proflies. Our study provides valued information to develop different conservation strategies among different populations and improve fisheries management for M. terminalis and other endemic species in local rivers.

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Spatio-temporal variability in fatty acid trophic biomarkers in stomach contents and muscle of Iberian sardine (Sardina pilchardus) and its relationship with spawning

Cited by 48 publications

References 33 publications

Biochemical and physiological modifications in tissues of Sardina pilchardus: spatial and temporal patterns as a baseline for biomonitoring studies

Biochemical and physiological modifications in tissues of Sardina pilchardus: spatial and temporal patterns as a baseline for biomonitoring studies

References

High‐throughput sequencing and fatty acid profile analyses of the Black Amur bream (Megalobrama terminalis) reveal variation in dietary niche associated with geographic segregation

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