Low-Salinity Acclimation of Juvenile Marine Goliath Grouper<i>Epinephelus itajara</i>

Chapman, Frank A.; García, Lury N; Atencio, Victor J.; Muñoz, Robin J.; Silva, Alfonso; Flores, Héctor

doi:10.1080/10454438.2014.905356

Cited by 7 publications

(8 citation statements)

References 11 publications

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“…Our results are consistent with the finding that juvenile goliath grouper are less likely to inhabit waters where DO <3 mg L −1 (Koenig et al 2007). In addition, large juveniles were also more likely to associate with moderate salinities (i.e., approximately 10 to 30‰), consistent with previous findings that goliath grouper are less likely to inhabit extreme salinities, such as fresh water (Koenig et al 2007;Chapman et al 2014).…”

Section: Discussionsupporting

confidence: 86%

“…The few studies that have investigated juvenile goliath grouper in relation to basic water properties found that their presence was negatively correlated with both low salinity and low DO (see Koenig et al 2007, who correlated goliath grouper with wider scale water condition parameters) and that the species was tolerant (i.e., low mortality) of low salinity environments (Chapman et al 2014). Collectively, these previous findings suggest that juvenile goliath grouper associate with higher salinities; however, low salinities are unlikely to be lethal, which might be expected of a fish adapted to a habitat with significant seasonal changes in freshwater input (Koenig et al 2007).…”

Section: Discussionmentioning

confidence: 97%

“…However, within mangrove-lined rivers and islands of the Ten Thousand Islands, little is known about whether and how water properties may also influence the distribution of juvenile fishes. A few studies have investigated juvenile goliath grouper in relation to their physical environment (e.g., Sadovy and Eklund 1999;Koenig et al 2007;Chapman et al 2014), and juvenile goliath grouper have been reported as a hardy species (Sadovy and Eklund 1999). For example, Chapman et al (2014) reported a high tolerance by juveniles to extreme low salinity.…”

Section: Introductionmentioning

confidence: 98%

“…A few studies have investigated juvenile goliath grouper in relation to their physical environment (e.g., Sadovy and Eklund 1999;Koenig et al 2007;Chapman et al 2014), and juvenile goliath grouper have been reported as a hardy species (Sadovy and Eklund 1999). For example, Chapman et al (2014) reported a high tolerance by juveniles to extreme low salinity. However, within the broadly-defined distribution of mangrove shorelines, it remains unknown whether and how physical water properties, such as salinity, dissolved oxygen, temperature, and depth, influence the distribution and abundance of juvenile goliath grouper.…”

Section: Introductionmentioning

confidence: 98%

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Assessing the suitability of mangrove habitats for juvenile Atlantic goliath grouper

et al. 2015

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While juvenile Atlantic goliath grouper, Epinephelus itajara (Lichtenstein, 1822), are known to depend on mangrove root structure, relationships with water properties (e.g., salinity) and depth remain unclear or understudied. Because availability of suitable mangrove habitat has been suggested as the primary bottleneck to the recovery of this threatened species in the US, we investigated habitat associations of juvenile Atlantic goliath grouper with respect to physical water properties within mangrove habitats. Our study was conducted in six coastal rivers and three canals within the Ten Thousand Islands region of southwest Florida. Results suggested that juvenile Atlantic goliath grouper differed in how they associated with specific mangrove habitats based on season and size. We found that smaller juveniles (<340 mm TL) appeared to have stronger associations to physical water characteristics than larger (≥340 mm TL) juveniles. Both large and small juveniles showed the strongest associations with DO (i.e., >3 mg L −1 ) within mangrove habitat. For small juveniles, extreme temperatures influenced habitat association; for large juveniles, extreme salinity influenced distribution. We also found evidence that juvenile Atlantic goliath grouper associated more with natural rivers over man-made canals. The present study has utility for delineating suitable mangrove habitats for protection and potentially in the design of sampling surveys that aim to estimate population abundance.

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Section: Discussionsupporting

confidence: 86%

Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

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Assessing the suitability of mangrove habitats for juvenile Atlantic goliath grouper

et al. 2015

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“…In mariculture, salinity has a significant effect on the development of fish embryos, larvae and juveniles (Sørensen et al 2016 ; Kujawa et al 2017 ). It affects the ability of grouper to regulate osmotic pressure, the activity of metabolic enzymes, and the abundance of immune-related factors, influencing the ability to regulate osmotic pressure, digestion and absorption of nutrients, resistance to disease, and ultimately growth and survival (Tsui et al 2012 ; Cheng et al 2013 ; García et al 2013 ; Chapman et al 2014 ; Sutthinon et al 2015 ; Chen et al 2016 ; Arrokhman et al 2017 ). Therefore, studying the effects of salinity on the growth and development of grouper is important for artificial breeding programmes.…”

Section: Introductionmentioning

confidence: 99%

Time-series transcriptomic analysis of the kelp grouper Epinephelus moara in response to low salinity stress

Gao

Yue

Min

et al. 2018

Animal Cells and Systems

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The Kelp grouper Epinephelus moara is one of the most widely consumed and economically important marine fish in China. The species can tolerate a wide range of salinity, but genomic resources are not available, and the molecular mechanisms underlying adaptation to salinity at the transcriptomic level remain largely unclear. In this study, the transcriptomic responses of the liver of E. moara under low salinity were investigated using the Illumina digital gene expression system. After de novo assembly, 499,356 transcripts were generated and contributed 445,068 unigenes. A total of 14, 19, 33 and 3101 genes were differentially expressed following exposure to low salinity stress for 2, 6, 24 and 48 h, respectively. Only two genes were differentially expressed in all groups. Four genes related to metabolism and ambient salinity adaption were randomly selected to validate the differentially expressed genes (DEGs) by real-time PCR. Gene Ontology (GO) and Kyoto Encyclopaedia of Genes and Genomes (KEGG) pathway enrichment analysis were used to analyse the functional significance of DEGs, including those responding to salinity through diverse biological processes, cellular components, molecular functions, and pathways associated with metabolic and osmotic responses. This work provides new insight into the response to salinity challenges in E. moara, and the findings expand our knowledge of the molecular basis of metabolic regulation mechanisms in this species. Additionally, the transcriptional data provide a valuable resource for future molecular and genetic studies on E. moara.

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Survival and osmoregulation of juvenile of hybrid grouper (Epinephelus fuscoguttatus × Epinephelus lanceolatus) during acclimation in calcium-supplemented freshwater

2016

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Low-Salinity Acclimation of Juvenile Marine Goliath GrouperEpinephelus itajara

Cited by 7 publications

References 11 publications

Assessing the suitability of mangrove habitats for juvenile Atlantic goliath grouper

Assessing the suitability of mangrove habitats for juvenile Atlantic goliath grouper

Time-series transcriptomic analysis of the kelp grouper Epinephelus moara in response to low salinity stress

Survival and osmoregulation of juvenile of hybrid grouper (Epinephelus fuscoguttatus × Epinephelus lanceolatus) during acclimation in calcium-supplemented freshwater

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