Expression of ion transport proteins and routine metabolism in juveniles of tropical gar (Atractosteus tropicus) exposed to ammonia

Aranda-Morales, S. A.; Peña-Marín, Emyr Saúl; Jiménez‐Martínez, Luis Daniel; Martínez-Burguete, Talhia; Martínez-Bautista, Gil; Álvarez-Villagómez, Carina Shianya; Rosa-García, Susana De la; Camarillo‐Coop, Susana; Martínez‐García, Rafael; Guzmán-Villanueva, Laura T.; Álvarez‐González, Carlos Alfonso

doi:10.1016/j.cbpc.2021.109166

Cited by 6 publications

(5 citation statements)

References 67 publications

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“…Additionally, increased temperature, from 15 to 21 • C (∆6 • C), during embryonic development until hatching in Senegalese sole (Solea senegalensis) leads to an increased incidence of skeletal deformities [15]. Therefore, these results are in line with the reported high resistance of A. tropicus larvae to suboptimal rearing conditions with low requirements for water quality (regarding pH, dissolved oxygen, and pollutants, and with high ammonia tolerance) [24,[45][46][47]. Nevertheless, thermal variation during embryonic development was shown to induce sublethal effects in fish growth, skeletal development, and body morphology.…”

Section: Discussionsupporting

confidence: 60%

Larval Development in Tropical Gar (Atractosteus tropicus) Is Dependent on the Embryonic Thermal Regime: Ecological Implications under a Climate Change Context

Cruz

Riesco

Martínez-Bautista

et al. 2022

Fishes

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In ectotherm species, environmental temperature plays a key role in development, growth, and survival. Thus, determining how temperature affects fish populations is of utmost importance to accurately predict the risk of climate change over fisheries and aquaculture, critical to warrant nutrition and food security in the coming years. Here, the potential effects of abnormal thermal regimes (24, 28 and 32 °C; TR24, TR28, and TR32, respectively) exclusively applied during embryogenesis in tropical gar (Atractosteus tropicus) has been explored to decipher the potential consequences on hatching and growth from fertilization to 16 days post-fertilization (dpf), while effects on skeletal development and body morphology were explored at fertilization and 16 dpf. Egg incubation at higher temperatures induced an early hatching and mouth opening. A higher hatching rate was obtained in eggs incubated at 28 °C when compared to those at 24 °C. No differences were found in fish survival at 16 dpf, with values ranging from 84.89 to 88.86%, but increased wet body weight and standard length were found in larvae from TR24 and TR32 groups. Thermal regime during embryogenesis also altered the rate at which the skeletal development occurs. Larvae from the TR32 group showed an advanced skeletal development, with a higher development of cartilaginous structures at hatching but reduced at 16 dpf when compared with the TR24 and TR28 groups. Furthermore, this advanced skeletal development seemed to determine the fish body morphology. Based on biometric measures, a principal component analysis showed how along development, larvae from each thermal regime were clustered together, but with each population remaining clearly separated from each other. The current study shows how changes in temperature may induce craniofacial and morphological alterations in fish during early stages and contribute to understanding the possible effects of global warming in early development of fish and its ecological implications.

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Section: Discussionsupporting

confidence: 60%

Larval Development in Tropical Gar (Atractosteus tropicus) Is Dependent on the Embryonic Thermal Regime: Ecological Implications under a Climate Change Context

Cruz

Riesco

Martínez-Bautista

et al. 2022

Fishes

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“…The air-breathing fish displayed better high tolerance to high NH 3 levels as the air-breathing process enables them to eliminate NH 3 gas. 37,41,50 According to the available literature, the most ammonia tolerant freshwater fish is blunt snout bream (Megalobrama amblycephala) (96 h LC50 UIA 6.899 mg/ L), and the least tolerant freshwater fish is rainbow trout (Salmo gairdneri) (96 h LC50 UIA 0.152 mg/L) if air-breathing fish are excluded. 33,34 Among the air-breathing fish, alligator gar (Atractosteus spatula) showed the highest ammonia tolerance (96 h LC50 UIA 4.3 mg/L).…”

Section: Ammonia Toxicitymentioning

confidence: 99%

“…Exposure to higher TAN caused hyperventilation and changes in normal oxygen consumption rate and energetic cost. 41 Becke et al 112 reported that over 13 weeks, chronic exposure to unionized ammonia at concentrations of up to 0.05 mg/L had no detrimental effect on the physiology and performance of rainbow trout in a farm-scale recirculating aquaculture system (RAS). This study suggested the need for revising the upper safe limits of unionized ammonia-N for salmonid aquaculture based on the present genetic makeup of fish which had evolved in the course of artificial selection for aquaculture to impart improved ammonia tolerance.…”

Section: Physio-metabolic Responsesmentioning

confidence: 99%

“…However, we have attempted to present different fish' sensitivity toward ammonia toxicity. The air‐breathing fish displayed better high tolerance to high NH 3 levels as the air‐breathing process enables them to eliminate NH 3 gas 37,41,50 . According to the available literature, the most ammonia tolerant freshwater fish is blunt snout bream ( Megalobrama amblycephala ) (96 h LC50 UIA 6.899 mg/L), and the least tolerant freshwater fish is rainbow trout ( Salmo gairdneri ) (96 h LC50 UIA 0.152 mg/L) if air‐breathing fish are excluded 33,34 .…”

Section: Ammonia Toxicitymentioning

confidence: 99%

“…The upregulation of the genes involved in TAN excretion (genes encoding Rhesus glycoproteins (Rhag, Rhbg and Rhcg) and ion transporters (NHE, NKA, CFTR or NKCC) through gills and skin elicited physiological and metabolic responses in juveniles of A. tropicus under chronic TAN exposure for 12 days. Exposure to higher TAN caused hyperventilation and changes in normal oxygen consumption rate and energetic cost 41 . Becke et al 112 reported that over 13 weeks, chronic exposure to unionized ammonia at concentrations of up to 0.05 mg/L had no detrimental effect on the physiology and performance of rainbow trout in a farm‐scale recirculating aquaculture system (RAS).…”

Section: Effect Of Elevated Ammonia On Fishmentioning

confidence: 99%

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Ammonia induced toxico‐physiological responses in fish and management interventions

Parvathy

Das

Jifiriya

et al. 2022

Reviews in Aquaculture

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Intensification of aquaculture practices resulted in increased ammonia production in the culture systems. Lack of proper management of the culture system will result in elevated ammonia, which adversely affects the culture species. Moreover, with the ongoing global warming, fish metabolism and ammonia excretion are expected to increase. This, coupled with the hypoxic condition, exacerbates the severity of ammonia toxicity. Ammonia toxicity can alter the growth and the biochemical, physiological and immunological responses of fish. Several factors such as pH, temperature, salinity, dissolved oxygen, species and life stages of fish, physical activity, feeding and stress influence the toxicity of ammonia in fish. A proper understanding of these factors is a prerequisite for successful aquaculture. The physiological changes caused by the elevated ammonia hinder homeostasis that eventually increases their susceptibility to diseases. This review discusses ammonia toxicity in fish, factors affecting the toxicity and various physiological, haematological, histological and immunological responses induced by the elevated ammonia. Furthermore, the review summarizes various management and dietary interventions to mitigate ammonia and ammonia induced stress in aquaculture.

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Conservation genetics of the tropical gar (Atractosteus tropicus, Lepisosteidae)

et al. 2023

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Expression of ion transport proteins and routine metabolism in juveniles of tropical gar (Atractosteus tropicus) exposed to ammonia

Cited by 6 publications

References 67 publications

Larval Development in Tropical Gar (Atractosteus tropicus) Is Dependent on the Embryonic Thermal Regime: Ecological Implications under a Climate Change Context

Larval Development in Tropical Gar (Atractosteus tropicus) Is Dependent on the Embryonic Thermal Regime: Ecological Implications under a Climate Change Context

Ammonia induced toxico‐physiological responses in fish and management interventions

Conservation genetics of the tropical gar (Atractosteus tropicus, Lepisosteidae)

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