Pub Date : 2024-04-09DOI: 10.1080/10236244.2024.2337444
Nathan J. Thomas, Kam W. Tang, Christopher J. Coates
Symsagittifera roscoffensis forms a photosymbiotic relationship with the alga Tetraselmis convolutae within the intertidal zone. Juveniles lack algal symbionts at birth and acquire them from the en...
{"title":"To move or not to move: taxis responses of the marine acoel symsagittifera roscoffensis to different stimuli","authors":"Nathan J. Thomas, Kam W. Tang, Christopher J. Coates","doi":"10.1080/10236244.2024.2337444","DOIUrl":"https://doi.org/10.1080/10236244.2024.2337444","url":null,"abstract":"Symsagittifera roscoffensis forms a photosymbiotic relationship with the alga Tetraselmis convolutae within the intertidal zone. Juveniles lack algal symbionts at birth and acquire them from the en...","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"11 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140587760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-09-21DOI: 10.1080/10236244.2023.2261607
G. Iveett Calderón-Gurrola, Oscar Trujillo-Millán, M. Teresa Sicard, Raquel Díaz-Hernández, Guillermina Alcaraz, Liliana Hernández-Olalde, Salvador E. Lluch-Cota
ABSTRACTGreen abalone (Haliotis fulgens) experienced severe biomass losses and massive mortality due to short-term marine climatic extremes. We studied green abalone behavior and energy expenditure in response to environmental stress. Acclimatized juveniles were subjected to hyperthermia (26°C), hypoxia (1.0 mg O2 L-1), the combination of both, and control conditions (18°C and oxygen saturation) using an automated system. The movement parameters of organisms were recorded by labeling and filming them, and the respiration rate was measured in hermetic chambers. There were differences in gross and net distance and velocity between the control and the combined stressors. Respiration was raised by hyperthermia, lowered by hypoxia, and further reduced by the combined stressors. All abalone that left the shelter during the night returned by daylight, while hypoxia and hyperthermia reduced this number. Research on environmental stress and movement strategies could lead to a more objective stress proxy.KEYWORDS: Behaviorclimate changebenthic ecosystemsecophysiology AcknowledgmentsThis work was supported by the Consejo Nacional de Ciencia y Tecnología (Mexico) under grant CB 287237. Technical support was provided by Gilberto González Soriano, Rosa Isela Vázquez Sánchez, Oscar A. Larrañaga Sosa, and Samuel Calderón Liévanos. We thank the Sociedad Cooperativa de Producción Pesquera de Bahía Tortugas S. C. de R.L. and their personnel for providing the experimental organisms. GICG received a CONACYT doctoral fellowship 739928.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe work was supported by the Consejo Nacional de Ciencia y Tecnología [CB287237].
摘要短期海洋极端气候导致绿鲍鱼(halotis fulgens)生物量损失严重，大量死亡。研究了绿鲍鱼在环境胁迫下的行为和能量消耗。采用自动化系统对适应后的幼鱼进行热疗(26°C)、缺氧(1.0 mg O2 L-1)、两者结合以及控制条件(18°C和氧饱和度)。通过标记和拍摄记录生物的运动参数，并在密闭室中测量呼吸速率。在总距离、净距离和速度上，控制组与组合应激源存在差异。呼吸因高温而升高，因缺氧而降低，并因联合应激源而进一步降低。所有在夜间离开避难所的鲍鱼都在白天返回，而缺氧和高温减少了这一数量。对环境应激和运动策略的研究可以带来更客观的应激代理。本研究由墨西哥国家科学委员会Tecnología(墨西哥)资助，项目编号CB 287237。技术支持由Gilberto González Soriano、Rosa Isela Vázquez Sánchez、Oscar A. Larrañaga Sosa和Samuel Calderón lisamuvanos提供。我们感谢Producción Pesquera de Bahía Tortugas s.c. de R.L.社会合作组织及其工作人员提供实验生物体。GICG获得CONACYT博士奖学金739928。披露声明作者未报告潜在的利益冲突。本研究由国家科学委员会通过Tecnología [CB287237]提供支持。
{"title":"Movement and energy expenditure in juvenile green abalone ( <i>Haliotis fulgens</i> ) exposed to hyperthermia, hypoxia, and both conditions","authors":"G. Iveett Calderón-Gurrola, Oscar Trujillo-Millán, M. Teresa Sicard, Raquel Díaz-Hernández, Guillermina Alcaraz, Liliana Hernández-Olalde, Salvador E. Lluch-Cota","doi":"10.1080/10236244.2023.2261607","DOIUrl":"https://doi.org/10.1080/10236244.2023.2261607","url":null,"abstract":"ABSTRACTGreen abalone (Haliotis fulgens) experienced severe biomass losses and massive mortality due to short-term marine climatic extremes. We studied green abalone behavior and energy expenditure in response to environmental stress. Acclimatized juveniles were subjected to hyperthermia (26°C), hypoxia (1.0 mg O2 L-1), the combination of both, and control conditions (18°C and oxygen saturation) using an automated system. The movement parameters of organisms were recorded by labeling and filming them, and the respiration rate was measured in hermetic chambers. There were differences in gross and net distance and velocity between the control and the combined stressors. Respiration was raised by hyperthermia, lowered by hypoxia, and further reduced by the combined stressors. All abalone that left the shelter during the night returned by daylight, while hypoxia and hyperthermia reduced this number. Research on environmental stress and movement strategies could lead to a more objective stress proxy.KEYWORDS: Behaviorclimate changebenthic ecosystemsecophysiology AcknowledgmentsThis work was supported by the Consejo Nacional de Ciencia y Tecnología (Mexico) under grant CB 287237. Technical support was provided by Gilberto González Soriano, Rosa Isela Vázquez Sánchez, Oscar A. Larrañaga Sosa, and Samuel Calderón Liévanos. We thank the Sociedad Cooperativa de Producción Pesquera de Bahía Tortugas S. C. de R.L. and their personnel for providing the experimental organisms. GICG received a CONACYT doctoral fellowship 739928.Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThe work was supported by the Consejo Nacional de Ciencia y Tecnología [CB287237].","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"145 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136236963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-08-01DOI: 10.1080/10236244.2023.2241977
Yujin Pu, J. Liu, Nannan Zhang, Shanhong Liu, Haibin Zhang
{"title":"A modified CTAB method for high-molecular-weight DNA preparation from deep-sea holothurians","authors":"Yujin Pu, J. Liu, Nannan Zhang, Shanhong Liu, Haibin Zhang","doi":"10.1080/10236244.2023.2241977","DOIUrl":"https://doi.org/10.1080/10236244.2023.2241977","url":null,"abstract":"","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"69 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80357663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-09DOI: 10.1080/10236244.2023.2221372
J. Christensen, P. Grønkjær, Anna B. Neuheimer, Rune Kristiansen
{"title":"Electroreception by small-spotted catshark (Scyliorhinus canicula) embryos in relation to predator detection and avoidance","authors":"J. Christensen, P. Grønkjær, Anna B. Neuheimer, Rune Kristiansen","doi":"10.1080/10236244.2023.2221372","DOIUrl":"https://doi.org/10.1080/10236244.2023.2221372","url":null,"abstract":"","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"59 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91342573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-26DOI: 10.1080/10236244.2023.2216346
Laura Camacho‐Jiménez, A. B. Peregrino-Uriarte, Lilia Leyva-Carrillo, S. Gómez‐Jiménez, A. Thies, M. Tresguerres, G. Yepiz-Plascencia
ABSTRACT Penaeus vannamei, experiences hypoxia in its natural habitat and in aquaculture. Under hypoxia, cells enhance anaerobic energy production through glycolysis dependent on the up-regulation of glycolytic enzymes including glyceraldehyde-3-phosphate dehydrogenase (GAPDH) in gills. In vertebrates, GAPDH translocates into the nucleus and displays “moonlighting” functions including apoptosis. These alternative localizations and functions have not been described in crustaceans. We examined the effect of severe hypoxia and GAPDH silencing by RNA interference (RNAi) on its mRNA expression localization and glycolytic activity in P. vannamei gills. Expression and cytosolic activity were up-regulated only in hypoxia-exposed shrimp, but not in hypoxia-silenced specimens. GAPDH was immunodetected in cytosol and nucleus regardless of oxygen conditions. Hypoxia and RNAi decreased activity in cytosol and nucleus without affecting protein abundance, which suggests that nuclear GAPDH may have non-glycolytic functions. Moreover, Caspase-3 (Casp-3) expression increased with GAPDH silencing, suggesting alternative roles for GAPDH in apoptosis evasion.
{"title":"Effects of severe hypoxia and glyceraldehyde-3-phosphate dehydrogenase (GAPDH) knock-down on its gene expression, activity, subcellular localization, and apoptosis in gills of the shrimp Penaeus vannamei","authors":"Laura Camacho‐Jiménez, A. B. Peregrino-Uriarte, Lilia Leyva-Carrillo, S. Gómez‐Jiménez, A. Thies, M. Tresguerres, G. Yepiz-Plascencia","doi":"10.1080/10236244.2023.2216346","DOIUrl":"https://doi.org/10.1080/10236244.2023.2216346","url":null,"abstract":"ABSTRACT Penaeus vannamei, experiences hypoxia in its natural habitat and in aquaculture. Under hypoxia, cells enhance anaerobic energy production through glycolysis dependent on the up-regulation of glycolytic enzymes including glyceraldehyde-3-phosphate dehydrogenase (GAPDH) in gills. In vertebrates, GAPDH translocates into the nucleus and displays “moonlighting” functions including apoptosis. These alternative localizations and functions have not been described in crustaceans. We examined the effect of severe hypoxia and GAPDH silencing by RNA interference (RNAi) on its mRNA expression localization and glycolytic activity in P. vannamei gills. Expression and cytosolic activity were up-regulated only in hypoxia-exposed shrimp, but not in hypoxia-silenced specimens. GAPDH was immunodetected in cytosol and nucleus regardless of oxygen conditions. Hypoxia and RNAi decreased activity in cytosol and nucleus without affecting protein abundance, which suggests that nuclear GAPDH may have non-glycolytic functions. Moreover, Caspase-3 (Casp-3) expression increased with GAPDH silencing, suggesting alternative roles for GAPDH in apoptosis evasion. ","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"10 1","pages":"91 - 110"},"PeriodicalIF":1.0,"publicationDate":"2023-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85239895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-22DOI: 10.1080/10236244.2023.2211219
Hans G. Rupp
Abstract After the discovery of aerial embryonic incubation in mudskippers, it was found that the male induces larval hatching by removing the air from the egg-chamber so that the eggs immerse in water. Do the adults provide additional support to the newly hatched larvae to help them leave the life-endangering hypoxic water inside the burrow? This paper compares 18 hatching events of 3 species: dusky gilled mudskipper, Pearse´s mudskipper and slender mudskipper. After air removal 3 different burrow-shape dependent strategies of paternal help for larval burrow leaving were observed: (1) very frequent diving toward the burrow shaft or into the egg-chamber to generate turbulences that can help to propel the larvae toward the water surface; (2) tail-undulation to create a water current out of the burrow that would take along the hatched larvae; and (3) intake of larvae into the paternal mouth, subsequently spitting them out to expel them from the burrow.
{"title":"Paternal help in larval release of three mudskipper species","authors":"Hans G. Rupp","doi":"10.1080/10236244.2023.2211219","DOIUrl":"https://doi.org/10.1080/10236244.2023.2211219","url":null,"abstract":"Abstract After the discovery of aerial embryonic incubation in mudskippers, it was found that the male induces larval hatching by removing the air from the egg-chamber so that the eggs immerse in water. Do the adults provide additional support to the newly hatched larvae to help them leave the life-endangering hypoxic water inside the burrow? This paper compares 18 hatching events of 3 species: dusky gilled mudskipper, Pearse´s mudskipper and slender mudskipper. After air removal 3 different burrow-shape dependent strategies of paternal help for larval burrow leaving were observed: (1) very frequent diving toward the burrow shaft or into the egg-chamber to generate turbulences that can help to propel the larvae toward the water surface; (2) tail-undulation to create a water current out of the burrow that would take along the hatched larvae; and (3) intake of larvae into the paternal mouth, subsequently spitting them out to expel them from the burrow.","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"15 1","pages":"57 - 72"},"PeriodicalIF":1.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81484665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-14DOI: 10.1080/10236244.2023.2213810
Isabela F A Torres, C. O. Paranhos, Caroline Teixeira Bonifácio, G. Favero, R. K. Luz
{"title":"Influence of personality traits on reproduction and sperm quality of Oreochromis Niloticus","authors":"Isabela F A Torres, C. O. Paranhos, Caroline Teixeira Bonifácio, G. Favero, R. K. Luz","doi":"10.1080/10236244.2023.2213810","DOIUrl":"https://doi.org/10.1080/10236244.2023.2213810","url":null,"abstract":"","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"99 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2023-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74177034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-11DOI: 10.1080/10236244.2023.2211220
Zeyana Al-Ghafri, A. Al-Habsi, Michael J. Barry
ABSTRACT The pharmaceuticals atorvastatin and gemfibrozil are prescribed for the treatment of high blood cholesterol. Atorvastatin has been detected in surface waters at a concentrations of 250 ng/L while gemfibrozil at 0.5 μg/L. We tested the effects of atorvastatin and gemfibrozil individually and in combination on the swimming behavior and response of zebrafish (Danio rerio) to a conspecific alarm cue. We also measured whole-body cortisol and the effect of the alarm on metabolic rate. Fish exposed to nominal concentrations of 0.075 and 7.5 μg/L atorvastatin showed exaggerated responses to the alarm. In contrast, a high gemfibrozil concentration (nominal: 250 μg/L) alone and in combination with atorvastatin inhibited the alarm response suggesting an antagonistic effect. Neither drug affected total cortisol. After exposure to the alarm chemical the metabolic rate of control fish increased, but all other treatments decreased. This study shows that these drugs can effect behaviour at environmentally relevant concentrations.
{"title":"Atorvastatin and gemfibrozil alter zebrafish behavior","authors":"Zeyana Al-Ghafri, A. Al-Habsi, Michael J. Barry","doi":"10.1080/10236244.2023.2211220","DOIUrl":"https://doi.org/10.1080/10236244.2023.2211220","url":null,"abstract":"ABSTRACT The pharmaceuticals atorvastatin and gemfibrozil are prescribed for the treatment of high blood cholesterol. Atorvastatin has been detected in surface waters at a concentrations of 250 ng/L while gemfibrozil at 0.5 μg/L. We tested the effects of atorvastatin and gemfibrozil individually and in combination on the swimming behavior and response of zebrafish (Danio rerio) to a conspecific alarm cue. We also measured whole-body cortisol and the effect of the alarm on metabolic rate. Fish exposed to nominal concentrations of 0.075 and 7.5 μg/L atorvastatin showed exaggerated responses to the alarm. In contrast, a high gemfibrozil concentration (nominal: 250 μg/L) alone and in combination with atorvastatin inhibited the alarm response suggesting an antagonistic effect. Neither drug affected total cortisol. After exposure to the alarm chemical the metabolic rate of control fish increased, but all other treatments decreased. This study shows that these drugs can effect behaviour at environmentally relevant concentrations.","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"34 1","pages":"73 - 89"},"PeriodicalIF":1.0,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86314550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-08DOI: 10.1080/10236244.2023.2208724
Melissa A. May, P. Rawson
ABSTRACT Previous transcriptomic studies have suggested that ornithine decarboxylase (ODC) expression in Mytilids (Mytilus spp.) may be a critical component of the osmotic stress response. Ornithine is catabolized into polyamines by ODC or into glutamate or proline by ornithine aminotransferase (OAT). To better understand how ornithine is metabolized under low salinity conditions, we examined species-specific variation in OAT and ODC expression for three species that vary in their salinity tolerance (M. trossulus, M. edulis, and M. galloprovincialis). We found a consistent decrease in ODC expression during hypoosmotic exposure in all three species but pronounced species-specific increases in OAT expression. During hyperosmotic stress, the patterns of expression of these genes reversed, suggesting that proline or glutamate synthesis is important during low salinity exposure, while polyamine synthesis may be more important during hyperosmotic exposure. These responses were most pronounced in M. galloprovincialis, with an 18-fold increase in OAT during hypoosmotic exposure.
先前的转录组学研究表明，鸟氨酸脱羧酶(ODC)在Mytilus spp.)中的表达可能是渗透胁迫反应的关键组成部分。鸟氨酸通过ODC分解为多胺，或通过鸟氨酸转氨酶(OAT)分解为谷氨酸或脯氨酸。为了更好地了解鸟氨酸在低盐度条件下是如何代谢的，我们研究了三种耐盐性不同的物种(M. trossulus, M. edulis和M. galloprovincialis) OAT和ODC表达的物种特异性变化。我们发现，在低渗暴露期间，所有三个物种的ODC表达一致下降，但OAT表达明显增加。在高渗胁迫下，这些基因的表达模式发生了逆转，这表明脯氨酸或谷氨酸的合成在低盐度环境下很重要，而多胺的合成在高渗环境下可能更重要。这些反应在加洛省分枝杆菌中最为明显，在低渗暴露期间OAT增加了18倍。
{"title":"Ornithine metabolism and the osmotic stress response in mytilid congeners","authors":"Melissa A. May, P. Rawson","doi":"10.1080/10236244.2023.2208724","DOIUrl":"https://doi.org/10.1080/10236244.2023.2208724","url":null,"abstract":"ABSTRACT Previous transcriptomic studies have suggested that ornithine decarboxylase (ODC) expression in Mytilids (Mytilus spp.) may be a critical component of the osmotic stress response. Ornithine is catabolized into polyamines by ODC or into glutamate or proline by ornithine aminotransferase (OAT). To better understand how ornithine is metabolized under low salinity conditions, we examined species-specific variation in OAT and ODC expression for three species that vary in their salinity tolerance (M. trossulus, M. edulis, and M. galloprovincialis). We found a consistent decrease in ODC expression during hypoosmotic exposure in all three species but pronounced species-specific increases in OAT expression. During hyperosmotic stress, the patterns of expression of these genes reversed, suggesting that proline or glutamate synthesis is important during low salinity exposure, while polyamine synthesis may be more important during hyperosmotic exposure. These responses were most pronounced in M. galloprovincialis, with an 18-fold increase in OAT during hypoosmotic exposure.","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"19 1","pages":"33 - 53"},"PeriodicalIF":1.0,"publicationDate":"2023-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83157100","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-03-08DOI: 10.1080/10236244.2023.2190521
Kyra N. Anderson, Megan M. Dotterweich, Linnea E. Staab, Andrew A. Levora, Kristin M. Hardy
ABSTRACT Differences in the stress experience of sessile organisms across the intertidal zone can differentially influence phenotype. For example, Balanus glandula barnacles from the low intertidal zone have higher lactate levels, greater lactate dehydrogenase (LDH) activity and reduced cirral activity compared to conspecifics from the high intertidal zone. We tested the hypothesis that enhanced anaerobic capacity in lower intertidal B. glandula results from increased predation and hypoxia-inducing shell closure. To investigate this hypothesis, we compared the density of whelk predators across the intertidal zone, and quantified the behavioral response and LDH activity levels of B. glandula exposed to predators in the lab. We consistently found more predators in the low intertidal zone, although the response of B. glandula to predators was short-term operculum closure (<1hr) which did not result in significant differences in LDH activity. Thus, increased predation is not the cause of high anaerobic capacity in lower intertidal B. glandula.
{"title":"Predator effects on behavior and anaerobic capacity in the common acorn barnacle (Balanus glandula)","authors":"Kyra N. Anderson, Megan M. Dotterweich, Linnea E. Staab, Andrew A. Levora, Kristin M. Hardy","doi":"10.1080/10236244.2023.2190521","DOIUrl":"https://doi.org/10.1080/10236244.2023.2190521","url":null,"abstract":"ABSTRACT Differences in the stress experience of sessile organisms across the intertidal zone can differentially influence phenotype. For example, Balanus glandula barnacles from the low intertidal zone have higher lactate levels, greater lactate dehydrogenase (LDH) activity and reduced cirral activity compared to conspecifics from the high intertidal zone. We tested the hypothesis that enhanced anaerobic capacity in lower intertidal B. glandula results from increased predation and hypoxia-inducing shell closure. To investigate this hypothesis, we compared the density of whelk predators across the intertidal zone, and quantified the behavioral response and LDH activity levels of B. glandula exposed to predators in the lab. We consistently found more predators in the low intertidal zone, although the response of B. glandula to predators was short-term operculum closure (<1hr) which did not result in significant differences in LDH activity. Thus, increased predation is not the cause of high anaerobic capacity in lower intertidal B. glandula.","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":"19 1","pages":"19 - 32"},"PeriodicalIF":1.0,"publicationDate":"2023-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88727260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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