Contrasting physiological responses between invasive sea lamprey and non-target bluegill in response to acute lampricide exposure
نویسندگان
چکیده
• Lampricides are used to control invasive sea lamprey in the Laurentian Great Lakes. Two lampricides used, 3-trifluoromethyl-4-nitrophenol (TFM) & niclosamide. Sea and bluegill were exposed TFM, niclosamide, TFM:niclosamide mix. Brain, muscle, liver tissues collected at 6, 12, 24 h of exposure. Tissue ATP, phosphocreatine, glycogen, lactate glucose measured. Lamprey showed signs ATP synthesis impairment during lampricide Bluegill much more tolerant than larval lamprey. Control ( Petromyzon marinus ) Lakes North America uses lampricides, which consist thought inhibit aerobic energy synthesis, with TFM having a relatively greater selective action against lampreys. While toxicity physiological effects known, impacts associated exposure niclosamide mixtures poorly characterized fishes. Therefore, focusing on metabolism, we quantified responses Lepomis macrochirus ), non-target, native species. Exposures consisted each alone (TFM species-specific LC 10 ; 1.5% mixture's concentration) or mixture two (larval + niclosamide; lamprey's 99. 9 niclosamide) for h. Tissues (brain, skeletal liver) sampled assayed concentrations lactate, tissue levels. In lamprey, had little effect brain but resulted depletion high substrates both tissues. Mixture-exposed substrates, accumulation mortality rates. largely unaffected by toxicant exposures. However, lower glycogen under all three exposures suggesting increased metabolic turnover. also their when compared Our results indicate that larvae is mediated through because impaired synthesis. We confirmed non-target tolerance exposure, an potentially detoxification capacity relative
منابع مشابه
Use of physiological knowledge to control the invasive sea lamprey (Petromyzon marinus) in the Laurentian Great Lakes
Sea lamprey (Petromyzon marinus) control in the Laurentian Great Lakes of North America is an example of using physiological knowledge to successfully control an invasive species and rehabilitate an ecosystem and valuable fishery. The parasitic sea lamprey contributed to the devastating collapse of native fish communities after invading the Great Lakes during the 1800s and early 1900s. Economic...
متن کاملResponses of non-target aquatic organisms to aqueous propanil exposure.
Propanil (3',4'-dichloropropionanilide) is one of the world’s most widely used rice herbicides, and it is extensively used in Arkansas, the leading rice producer in the United States (Webster and Gunnel1 1992). On average, the United States has applied approximately five kg/ha/year to about 70-100% of rice hectareacreage for the past two decades (US EPA 1987; Schlenk and Moore 1993). Arkansas, ...
متن کاملSea level and acute responses to hypoxia: do they predict physiological responses and acute mountain sickness at altitude?
OBJECTIVES To compare a range of physiological responses to acute sea level hypoxia at simulated altitudes with the same physiological responses and acute mountain sickness (AMS) scores measured at altitude (similar to the simulated altitudes) during a 17 day trek in the Himalayas. METHODS Twenty men and women aged 18-54 years took part in the study. End tidal CO(2) tension (PETCO(2)) and sat...
متن کاملContrasting physiological responses of six eucalyptus species to water deficit.
BACKGROUND AND AIMS The genus Eucalyptus occupies a broad ecological range, forming the dominant canopy in many Australian ecosystems. Many Eucalyptus species are renowned for tolerance to aridity, yet inter-specific variation in physiological traits, particularly water relations parameters, contributing to this tolerance is weakly characterized only in a limited taxonomic range. The study test...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Aquatic Toxicology
سال: 2021
ISSN: ['0166-445X', '1879-1514']
DOI: https://doi.org/10.1016/j.aquatox.2021.105848