当前位置：
X-MOL 学术
›
Environ. Toxicol. Chem.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Identification of Optimal Calcium and Temperature Conditions for Quagga Mussel Filtration Rates as a Potential Predictor of Invasion.
Environmental Toxicology and Chemistry ( IF 3.6 ) Pub Date : 2019-12-27 , DOI: 10.1002/etc.4624 Kishore K Gopalakrishnan 1 , Donna R Kashian 1
Environmental Toxicology and Chemistry ( IF 3.6 ) Pub Date : 2019-12-27 , DOI: 10.1002/etc.4624 Kishore K Gopalakrishnan 1 , Donna R Kashian 1
Affiliation
|
Quagga mussels (Dreissena rostriformis burgensis) are a highly invasive aquatic species to North America, capable of filtering large volumes of water and causing severe ecological and economic impacts. Their range has been expanding since they first invaded the Great Lakes in the 1980s. To predict their spread, it is crucial to understand environmental parameters, which facilitate their range expansion. Two factors likely to influence their distribution include calcium and temperature, because the former is vital for shell development and the latter for metabolic activity. When these factors are optimal for mussels' fitness, the filtration rate has the potential to be maximized if other environmental conditions are also favorable, thus enabling mussels to exploit their growth potential. Deviations from optimal conditions likely result in filtration-rate decline. We identify calcium concentrations and temperatures that maximize the mussel filtration rate for 2 phytoplankton species: Ankistrodesmus facaltus, a common food source for quagga mussels, and a less palatable Microcystis icthyoblabe. In laboratory experiments, filtration rates were measured through cell counts after 24 h of filtration when exposed to a range of temperatures between 2 and 30 °C, and calcium concentrations between 0 and 180 mg/L. Response surface methodology was used to identify a maximum filtration rate, which occurred at 22 mL/mg/h at 137 mg/L of calcium carbonate and 26 °C when fed Ankistrodesmus. To establish a quagga mussel population in a new water source, optimum conditions are required; thus, this information can be used to rank the relative susceptibility of water bodies to invasion by quagga mussels. Environ Toxicol Chem 2020;39:410-418. © 2019 SETAC.
中文翻译：
确定Quagga贻贝过滤速率的最佳钙和温度条件作为入侵的潜在预测因素。
Quagga贻贝（Dreissena rostriformis burgensis）是对北美具有高度入侵性的水生物种，能够过滤大量水，并造成严重的生态和经济影响。自从他们在1980年代首次入侵五大湖以来，他们的范围一直在扩大。要预测它们的扩散，了解环境参数至关重要，这有助于它们的范围扩展。可能影响其分布的两个因素包括钙和温度，因为前者对壳的发育至关重要，而后者对代谢活性至关重要。如果这些因素最适合贻贝的生存，如果其他环境条件也有利，则滤水率就有可能最大化，从而使贻贝能够发挥其生长潜力。偏离最佳条件可能会导致过滤率下降。我们确定了钙浓度和温度，这些钙浓度和温度可使两种浮游植物物种的贻贝滤过率最大化：Ankistrodesmus facaltus，类贻贝的常见食物来源，以及口感较弱的微囊藻。在实验室实验中，当暴露于2至30°C的温度范围和0至180 mg / L的钙浓度时，通过过滤24小时后的细胞计数来测量过滤速率。响应面分析法用于确定最大滤过率，当喂食章鱼时，最大滤出率出现在22 mg / mg / h的碳酸钙和137 mg / L和26°C的条件下。为了在新的水源中建立准蚌类种群，需要有最佳条件。因此，该信息可用于对水体对贻贝入侵的相对敏感性进行排名。Environ Toxicol Chem 2020; 39：410-418。©2019 SETAC。
更新日期：2020-01-26
中文翻译：
确定Quagga贻贝过滤速率的最佳钙和温度条件作为入侵的潜在预测因素。
Quagga贻贝（Dreissena rostriformis burgensis）是对北美具有高度入侵性的水生物种，能够过滤大量水，并造成严重的生态和经济影响。自从他们在1980年代首次入侵五大湖以来，他们的范围一直在扩大。要预测它们的扩散，了解环境参数至关重要，这有助于它们的范围扩展。可能影响其分布的两个因素包括钙和温度，因为前者对壳的发育至关重要，而后者对代谢活性至关重要。如果这些因素最适合贻贝的生存，如果其他环境条件也有利，则滤水率就有可能最大化，从而使贻贝能够发挥其生长潜力。偏离最佳条件可能会导致过滤率下降。我们确定了钙浓度和温度，这些钙浓度和温度可使两种浮游植物物种的贻贝滤过率最大化：Ankistrodesmus facaltus，类贻贝的常见食物来源，以及口感较弱的微囊藻。在实验室实验中，当暴露于2至30°C的温度范围和0至180 mg / L的钙浓度时，通过过滤24小时后的细胞计数来测量过滤速率。响应面分析法用于确定最大滤过率，当喂食章鱼时，最大滤出率出现在22 mg / mg / h的碳酸钙和137 mg / L和26°C的条件下。为了在新的水源中建立准蚌类种群，需要有最佳条件。因此，该信息可用于对水体对贻贝入侵的相对敏感性进行排名。Environ Toxicol Chem 2020; 39：410-418。©2019 SETAC。
京公网安备 11010802027423号