Behavioral thermoregulatory abilities of tropical coral reef fishes: a comparison with temperate freshwater and marine fishes

1981 ◽  
Vol 6 (3-4) ◽  
pp. 347-349 ◽  
Author(s):  
William W. Reynolds ◽  
Martha E. Casterlin
Keyword(s):  
Coral Reef ◽  
Reef Fishes ◽  
Coral Reef Fishes ◽  
Marine Fishes ◽  
Tropical Coral ◽  
Tropical Coral Reef

scholarly journals Adapt, move or die - how will tropical coral reef fishes cope with ocean warming?

2016 ◽  
Vol 23 (2) ◽  
pp. 566-577 ◽  
Author(s):  
Adam Habary ◽  
Jacob L. Johansen ◽  
Tiffany J. Nay ◽  
John F. Steffensen ◽  
Jodie L. Rummer
Keyword(s):  
Coral Reef ◽  
Reef Fishes ◽  
Coral Reef Fishes ◽  
Ocean Warming ◽  
Tropical Coral ◽  
Tropical Coral Reef

scholarly journals Thermal acclimation of tropical coral reef fishes to global heat waves

eLife ◽  
2021 ◽  
Vol 10 ◽  
Author(s):  
Jacob L Johansen ◽  
Lauren E Nadler ◽  
Adam Habary ◽  
Alyssa J Bowden ◽  
Jodie Rummer
Keyword(s):  
Coral Reef ◽  
Citrate Synthase ◽  
Heat Waves ◽  
Reef Fishes ◽  
Coral Reef Fishes ◽  
Major Life ◽  
Mobile Species ◽  
Organ Systems ◽  
Tropical Coral ◽  
Tropical Coral Reef

As climate-driven heat waves become more frequent and intense, there is increasing urgency to understand how thermally sensitive species are responding. Acute heating events lasting days to months may elicit acclimation responses to improve performance and survival. However, the coordination of acclimation responses remains largely unknown for most stenothermal species. We documented the chronology of 18 metabolic and cardiorespiratory changes that occur in the gills, blood, spleen, and muscles when tropical coral reef fishes are thermally stressed (+3.0°C above ambient). Using representative coral reef fishes (Caesio cuning and Cheilodipterus quinquelineatus) separated by >100 million years of evolution and with stark differences in major life-history characteristics (i.e. lifespan, habitat use, mobility, etc.), we show that exposure duration illicited coordinated responses in 13 tissue and organ systems over 5 weeks. The onset and duration of biomarker responses differed between species, with C. cuning – an active, mobile species – initiating acclimation responses to unavoidable thermal stress within the first week of heat exposure; conversely, C. quinquelineatus – a sessile, territorial species – exhibited comparatively reduced acclimation responses that were delayed through time. Seven biomarkers, including red muscle citrate synthase and lactate dehydrogenase activities, blood glucose and hemoglobin concentrations, spleen somatic index, and gill lamellar perimeter and width, proved critical in evaluating acclimation progression and completion, as these provided consistent evaluation of thermal responses across species.

scholarly journals Deep Insights into Gut Microbiota in Four Carnivorous Coral Reef Fishes from the South China Sea

2020 ◽  
Vol 8 (3) ◽  
pp. 426
Author(s):  
Yu-Miao Gao ◽  
Ke-Shu Zou ◽  
Lei Zhou ◽  
Xian-De Huang ◽  
Yi-Yang Li ◽  
...  
Keyword(s):  
Coral Reef ◽  
South China Sea ◽  
Gut Microbiota ◽  
South China ◽  
Reef Fishes ◽  
Coral Reef Fishes ◽  
Marine Fishes ◽  
The South China Sea ◽  
The South ◽  
China Sea

Investigations of gut microbial diversity among fish to provide baseline data for wild marine fish, especially the carnivorous coral reef fishes of the South China Sea, are lacking. The present study investigated the gut microbiota of four carnivorous coral reef fishes, including Oxycheilinus unifasciatus, Cephalopholis urodeta, Lutjanus kasmira, and Gnathodentex aurolineatus, from the South China Sea for the first time using high-throughput Illumina sequencing. Proteobacteria, Firmicutes, and Bacteroidetes constituted 98% of the gut microbiota of the four fishes, and 20 of the gut microbial genera recovered in this study represent new reports from marine fishes. Comparative analysis indicated that the four fishes shared a similar microbial community, suggesting that diet type (carnivorous) might play a more important role in shaping the gut microbiota of coral reef fishes than the species of fish. Furthermore, the genera Psychrobacter, Escherichia-Shigella, and Vibrio constituted the core microbial community of the four fishes, accounting for 61–91% of the total sequences in each fish. The lack of the genus Epulopiscium in the four fishes was in sharp contrast to what has been found in coral reef fishes from the Red Sea, in which Epulopiscium was shown to be the most dominant gut microbial genus in seven herbivorous coral reef fishes. In addition, while unique gut microbial genera accounted for a small proportion (8–13%) of the total sequences, many such genera were distributed in each coral reef fish species, including several genera (Endozoicomonas, Clostridium, and Staphylococcus) that are frequently found in marine fishes and 11 new reports of gut microbes in marine fishes. The present study expands our knowledge of the diversity and specificity of gut microbes associated with coral reef fishes.

Grazing pressure of herbivorous coral reef fishes on low coral-cover reefs

Coral Reefs ◽  
2006 ◽  
Vol 25 (3) ◽  
pp. 461-472 ◽  
Author(s):  
Michelle J. Paddack ◽  
Robert K. Cowen ◽  
Su Sponaugle
Keyword(s):  
Coral Reef ◽  
Coral Cover ◽  
Reef Fishes ◽  
Grazing Pressure ◽  
Coral Reef Fishes
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