Modeling the importance of fish condition, overall health, and disease on the fecundity of White Perch in the Choptank River

IF 1.5 4区 农林科学 Q3 FISHERIES
Jacob T. Shaner, Reginal M. Harrell, John M. Jacobs, Lance T. Yonkos, Howard Townsend
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引用次数: 0

Abstract

Choptank河鱼类状况、整体健康和疾病对白鲈鱼繁殖力的重要性建模。
目的:利用异速、营养和环境协变量对繁殖力进行建模,提高了许多鱼类繁殖指标的敏感性。在人为影响严重的河口,由于压力的增加,居民物种通常会经历亚致命的健康影响,这可能包括性腺病理学、两性或潜在的生殖失败的增加。这项研究模拟了河口物种美洲白鲈鱼的繁殖力,以响应被确定为栖息地压力信号的健康参数,包括总体病理表现、营养状况和疾病存在。方法:采用立体生殖力抽样方法估计切萨皮克湾乔坦河(马里兰州)的亚种群生殖力,并采用模型选择的信息论方法进行建模。通过健康评估技术确定的营养和健康参数、特定的身体指数和疾病存在被选为协变量。结果:与只有传统异速测量变量(如体重和身高)的模型相比,营养对模型拟合的影响有限。在健康变量中,毛病理学和体细胞指数对选择的影响很小,但分枝杆菌感染(切萨皮克湾温带鲈鱼的一种慢性疾病)显示出可测量的影响。与仅具有异速生长参数的模型相比,包括分枝杆菌病的模型最适合的可能性高出40倍。结论:这是否对所有亚群都有区域性的影响,需要进一步研究和采样分枝杆菌病感染的程度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of aquatic animal health
Journal of aquatic animal health 农林科学-兽医学
CiteScore
2.50
自引率
0.00%
发文量
25
审稿时长
>24 weeks
期刊介绍: The Journal of Aquatic Animal Health serves the international community of scientists and culturists concerned with the health of aquatic organisms. It carries research papers on the causes, effects, treatments, and prevention of diseases of marine and freshwater organisms, particularly fish and shellfish. In addition, it contains papers that describe biochemical and physiological investigations into fish health that relate to assessing the impacts of both environmental and pathogenic features.
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