Assessing environmental conditions of the Río Champotón (México) using diverse indices and biomarkers in the fish Astyanax aeneus (Günther, 1860)

Trujillo-Jiménez, Patricia; Sedeño‐Díaz, Jacinto Elías; Camargo, Julio A.; López‐López, Eugenia

doi:10.1016/j.ecolind.2011.04.007

Cited by 26 publications

(16 citation statements)

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“…On the contrary, a temperature increase between 4 and 16 • C was shown to produce a slowdown of shell production (Hiebenthal et al, 2012). Our results are in agreement with the latter study and show a decrease in the instantaneous growth rate between 10 and 15 • C. High temperatures are often associated with an increase of free radical production (Abele et al, 2002). A large amount of energy then has to be allocated to limit oxidative cellular damage (Abele and Puntarulo, 2004).…”

Section: Environmental Influence On Shell Growthsupporting

confidence: 82%

The effects of environment on <i>Arctica islandica</i> shell formation and architecture

et al. 2017

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Abstract. Mollusks record valuable information in their hard parts that reflect ambient environmental conditions. For this reason, shells can serve as excellent archives to reconstruct past climate and environmental variability. However, animal physiology and biomineralization, which are often poorly understood, can make the decoding of environmental signals a challenging task. Many of the routinely used shell-based proxies are sensitive to multiple different environmental and physiological variables. Therefore, the identification and interpretation of individual environmental signals (e.g., water temperature) often is particularly difficult. Additional proxies not influenced by multiple environmental variables or animal physiology would be a great asset in the field of paleoclimatology. The aim of this study is to investigate the potential use of structural properties of Arctica islandica shells as an environmental proxy. A total of 11 specimens were analyzed to study if changes of the microstructural organization of this marine bivalve are related to environmental conditions. In order to limit the interference of multiple parameters, the samples were cultured under controlled conditions. Three specimens presented here were grown at two different water temperatures (10 and 15 • C) for multiple weeks and exposed only to ambient food conditions. An additional eight specimens were reared under three different dietary regimes. Shell material was analyzed with two techniques; (1) confocal Raman microscopy (CRM) was used to quantify changes of the orientation of microstructural units and pigment distribution, and (2) scanning electron microscopy (SEM) was used to detect changes in microstructural organization. Our results indicate that A. islandica microstructure is not sensitive to changes in the food source and, likely, shell pigment are not altered by diet. However, seawater temperature had a statistically significant effect on the orientation of the biomineral. Although additional work is required, the results presented here suggest that the crystallographic orientation of biomineral units of A. islandica may serve as an alternative and independent proxy for seawater temperature.

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Section: Environmental Influence On Shell Growthsupporting

confidence: 82%

The effects of environment on <i>Arctica islandica</i> shell formation and architecture

et al. 2017

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“…It is possible to suggest that the amount of stored fatty acids must assure the energy needs of both parental fish and of their offspring (Tocher, 2003). The low values of HSI, before and after spawning, may result from the transference of energetic reserves from the liver to the gonads, to allow the occurrence of reproductive events (Trujillo-Jiménez et al, 2011). After gametogenesis and spawning, reserve substances in the liver suffered a drastic reduction, leading to the reduction of liver weight and, consequently, of the indexes of hepatic condition, including HSI and K liver (Kleinkauf et al, 2004;Trujillo-Jiménez et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…The low values of HSI, before and after spawning, may result from the transference of energetic reserves from the liver to the gonads, to allow the occurrence of reproductive events (Trujillo-Jiménez et al, 2011). After gametogenesis and spawning, reserve substances in the liver suffered a drastic reduction, leading to the reduction of liver weight and, consequently, of the indexes of hepatic condition, including HSI and K liver (Kleinkauf et al, 2004;Trujillo-Jiménez et al, 2011). Our results showed that the hepatic reserves were clearly associated to GSI, in part because spawning and feeding are also associated, as earlier mentioned.…”

Section: Discussionmentioning

confidence: 99%

“…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. Fish liver is an important temporary storage organ of lipids and glycogen, whose size may increase immediately before the spawning season (Kleinkauf et al, 2004;Nunes et al, 2011;Trujillo-Jiménez et al, 2011). Lipids are, together with proteins, the main organic chemical constituents of fishes (Tocher, 2003).…”

Section: Discussionmentioning

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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“…Some eco-toxicological studies have pointed to the Astyanax species as an adequate bioindicator for evaluating contaminated environments (Schulz & Martins-Junior , 2001;Ribeiro et al, 2002;Alberto et al, 2005;Carrasco-Letelier et al, 2006;Silva et al, 2009;Prado et al, 2011;Trujillo-Jiménez et al, 2011;. Among these, Astyanax jacuhiensis (Cope, 1894) is a non-migratory species, distributed by throughout Argentina, Brazil and Uruguay and is characterized by a fusiform body with a dark oval spot, arranged horizontally, just behind the head and yellow caudal fin (Reis et al, 2003).…”

mentioning

confidence: 99%

Spatial and temporal biomarkers responses of Astyanax jacuhiensis (Cope, 1894)(Characiformes: Characidae) from the middle rio Uruguai, Brazil

et al. 2015

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Due to intense agricultural activity in the rio Uruguai (South Brazil), there is the potential for aquatic contamination by agrochemicals. In this region, there are many reservoirs to meet the water demand for rice fields, forming lentic environments. In line with this information, the aim of this study was to show a comparative analysis of some biomarkers, such as lipid peroxidation (TBARS), gluthatione S-transferase (GST), non-protein thiols (NPSH), amino acids (AA) and piscine micronucleus tests (MNE) in Astyanax jacuhiensis from lentic and lotic environments in the middle rio Uruguai region, comparing warm and cold seasons. Eight pesticides were found in water samples, with propoxur having the highest concentration found in both environments and seasons. Fish from the warm season showed higher levels of biochemical biomarkers, and fish from the cold season showed higher levels of MNE and AA. TBARS and AA presented higher levels in fish from the river, while GST, NPSH, MNE and AA presented higher levels in fish from dams. These environments have different characteristics in terms of redox potential, aeration, sedimentation, trophic structure, agrochemicals input and others, which may affect the physiological and biochemical responses of fish in against adverse situations.Devido à intensa atividade agrícola no rio Uruguai (Sul do Brasil), há potencial para contaminação aquática por agrotóxicos. Há muitos reservatórios para atender a demanda de água de campos de arroz, formando ambientes lênticos. De acordo com estas informações, o objetivo do presente estudo foi mostrar uma análise comparativa de alguns biomarcadores como a peroxidação lipídica (TBARS), glutationa S-transferase (GST), tióis não-protéicos (NPSH), aminoácidos (AA) e teste písceo de micronúcleos (MNE) em Astyanax jacuhiensis amostrados em ambientes lóticos e lênticos da região do médio rio Uruguai, comparando estações quentes e frias. Oito pesticidas foram encontrados em amostras de água, sendo propoxur a maior concentração encontrada em ambos os ambientes e estações. Peixes da estação quente apresentaram maiores níveis de biomarcadores bioquímicos e peixes da estação fria apresentaram maiores níveis de MNE e AA. TBARS e AA apresentaram maiores níveis nos peixes de rio, enquanto GST, NPSH, MNE e AA apresentaram níveis mais elevados em peixes da represa. Estes ambientes têm características diferentes, com potencial redox, aeração, sedimentação, estrutura trófica, a entrada de agroquímicos e outros que podem afetar as respostas fisiológicas e bioquímicas de peixe contra situação adversa.

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Assessing environmental conditions of the Río Champotón (México) using diverse indices and biomarkers in the fish Astyanax aeneus (Günther, 1860)

Cited by 26 publications

References 59 publications

The effects of environment on <i>Arctica islandica</i> shell formation and architecture

The effects of environment on <i>Arctica islandica</i> shell formation and architecture

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

Spatial and temporal biomarkers responses of Astyanax jacuhiensis (Cope, 1894)(Characiformes: Characidae) from the middle rio Uruguai, Brazil

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Assessing environmental conditions of the Río Champotón (México) using diverse indices and biomarkers in the fish Astyanax aeneus (Günther, 1860)

Cited by 26 publications

References 59 publications

The effects of environment on &lt;i&gt;Arctica islandica&lt;/i&gt; shell formation and architecture

The effects of environment on &lt;i&gt;Arctica islandica&lt;/i&gt; shell formation and architecture

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

Spatial and temporal biomarkers responses of Astyanax jacuhiensis (Cope, 1894)(Characiformes: Characidae) from the middle rio Uruguai, Brazil

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Product

Resources

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The effects of environment on <i>Arctica islandica</i> shell formation and architecture

The effects of environment on <i>Arctica islandica</i> shell formation and architecture