Physiological consequences of rising water salinity for a declining freshwater turtle

被引:5
|
作者
Agha, Mickey [1 ]
Yanagitsuru, Yuzo R. [1 ]
Fangue, Nann A. [1 ]
Nowakowski, A. Justin [1 ]
Kojima, Laura V. [1 ]
Cech, Joseph J., Jr. [1 ]
Riley, Melissa K. [1 ]
Freeman, Janna [1 ]
Cocherell, Dennis E. [1 ]
Todd, Brian D. [1 ]
机构
[1] Univ Calif Davis, Dept Wildlife Fish & Conservat Biol, One Shields Ave, Davis, CA 95616 USA
来源
CONSERVATION PHYSIOLOGY | 2019年 / 7卷
关键词
Freshwater turtles; osmoregulation; salinity; sea-level rise; DIAMONDBACK TERRAPIN; ECOSYSTEM SERVICES; CALIFORNIA; ESTUARINE; OSMOREGULATION; TOLERANCE; LEVEL; SIZE; UREA;
D O I
10.1093/conphys/coz054
中图分类号
X176 [生物多样性保护];
学科分类号
090705 ;
摘要
Sea-level rise, drought and water diversion can all lead to rapid salinization of freshwater habitats, especially in coastal areas. Increased water salinities can in turn alter the geographic distribution and ecology of freshwater species including turtles. The physiological consequences of salinization for freshwater turtles, however, are poorly known. Here, we compared the osmoregulatory response of two geographically separate populations of the freshwater Western Pond Turtle (Actinemys marmorata)-a species declining across its range in western North America-to three constant salinities: 0.4 ppt, 10 ppt and 15 ppt over 2 weeks. We found that turtles from a coastal estuarine marsh population regulated their plasma osmolality at lower levels than their conspecifics from an inland freshwater creek population 45 km away. Plasma osmolalities were consistently lower in estuarine marsh turtles than the freshwater creek turtles over the entire 2-week exposure to 10 ppt and 15 ppt water. Furthermore, estuarine marsh turtles maintained plasma osmolalities within 1 SD of their mean field osmolalities over the 2-week exposure, whereas freshwater creek turtles exceeded their field values within the first few days after exposure to elevated salinities. However, individuals from both populations exhibited body mass loss in 15 ppt water, with significantly greater loss in estuarine turtles. We speculate that the greater ability to osmoregulate by the estuarine marsh turtles may be explained by their reduced feeding and drinking in elevated salinities that was not exhibited by the freshwater creek population. However, due to mass loss in both populations, physiological and behavioural responses exhibited by estuarine marsh turtles may only be effective adaptations for short-term exposures to elevated salinities, such as those from tides and when traversing saline habitats, and are unlikely to be effective for long-term exposure to elevated salinity as is expected under sea-level rise.
引用
收藏
页数:10
相关论文
共 50 条
  • [11] Impact of distillery effluent on physiological consequences in the freshwater teleost Channa punctatus
    Kumar S.
    Gopal K.
    Bulletin of Environmental Contamination and Toxicology, 2001, 66 (05) : 617 - 622
  • [12] Physiological consequences of translocation and interstock hybridization of a freshwater teleost fish.
    Cooke, SJ
    Philipp, DP
    INTEGRATIVE AND COMPARATIVE BIOLOGY, 2002, 42 (06) : 1211 - 1211
  • [13] Salinity Variation in a Mangrove Ecosystem: A Physiological Investigation to Assess Potential Consequences of Salinity Disturbances on Mangrove Crabs
    Theuerkauff, Dimitri
    Rivera-Ingraham, Georgina A.
    Roques, Jonathan A. C.
    Azzopardi, Laurence
    Bertini, Marine
    Lejeune, Mathilde
    Farcy, Emilie
    Lignot, Jehan-Herve
    Sucre, Elliott
    ZOOLOGICAL STUDIES, 2018, 57
  • [14] Spatial variation of the water rising and water table salinity in the Basin of Ouargla (Algerian Sahara)
    Recioui, I.
    Bouhoun, M. Daddi
    Boutoutaou, D.
    Mihoub, A.
    INTERNATIONAL CONFERENCE ON TECHNOLOGIES AND MATERIALS FOR RENEWABLE ENERGY, ENVIRONMENT AND SUSTAINABILITY, TMREES17, 2017, 119 : 571 - 578
  • [15] Physiological and Metabolic Responses of Freshwater and Brackish-Water Strains of Microcystis aeruginosa Acclimated to a Salinity Gradient: Insight into Salt Tolerance
    des Aulnois, Maxime Georges
    Roux, Pauline
    Caruana, Amandine
    Reveillon, Damien
    Briand, Enora
    Herve, Fabienne
    Savar, Veronique
    Bormans, Myriam
    Amzil, Zouher
    APPLIED AND ENVIRONMENTAL MICROBIOLOGY, 2019, 85 (21)
  • [16] Physiological limits in an ecological niche modeling framework: A case study of water temperature and salinity constraints of freshwater bivalves invasive in USA
    Feng, Xiao
    Papes, Monica
    ECOLOGICAL MODELLING, 2017, 346 : 48 - 57
  • [17] Growth and Physiological Responses of Blueberry to Reclaimed Water and Salinity
    Saleem, Yasmeen
    Kadyampakeni, Davie
    Agehara, Shinsuke
    HORTSCIENCE, 2023, 58 (09) : S250 - S250
  • [18] Modeling Onset of Hourly Nesting Activity in a Freshwater Turtle Using Abiotic Variables and Physiological Capacity
    Muell, Morgan R.
    Carter, A. L.
    Janzen, Fredric J.
    JOURNAL OF HERPETOLOGY, 2021, 55 (01) : 11 - 20
  • [19] Gill physiological and transcriptomic response of the threatened freshwater mussel Solenaia oleivora to salinity shift
    Zhang, Ting
    Yao, Jingting
    Xu, Dongpo
    Ma, Xueyan
    Jin, Wu
    Lv, Guohua
    Gu, Ruobo
    Wen, Haibo
    Zhou, Yanfeng
    COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS, 2021, 40
  • [20] From the Field to the Lab: Physiological and Behavioural Consequences of Environmental Salinity in a Coastal Frog
    Lorrain-Soligon, Lea
    Bichet, Coraline
    Robin, Frederic
    Brischoux, Francois
    FRONTIERS IN PHYSIOLOGY, 2022, 13