Hatchery-raised, age-0 Florida bass Micropterus floridanus are commonly used for fish enhancement efforts to support popular recreational fisheries and are ecologically important as both a food source and consumer. Despite their importance and frequent use of submerged aquatic vegetation (SAV) habitats, critical information is lacking on the specific characteristics of SAV that influence habitat occupancy. Using the SAV species Vallisneria americana and Potamogeton illinoensis, which are native to the southeast USA, and the invasive SAV Hydrilla verticillata, we conducted seven different habitat choice experiments to examine hatchery-raised, age-0 M. floridanus habitat use of different SAV populations (i.e., hydrologically isolated collection sources of varied physical characteristics), population diversity (i.e., increased richness of genotypically and phenotypically variable SAV), species, and species diversity (i.e., increased species richness). Fish spent more time in taller, larger V. americana but did not seem to favor any particular P. illinoensis population, SAV species, or species diversity tested. Additionally, fish spent more time in increased V. americana population diversity when the populations used were randomized, but fish spent more time in decreased population diversity when their favored V. americana population was used in all choices. This research adds additional nuance to our understanding of optimal vegetation for fish habitat use and is informative for future SAV plantings and invasive SAV management aimed at maximizing fish habitat and restoring recreational fisheries.

孵化场饲养的 0 岁佛罗里达鲈鱼Micropterus floridanus通常用于鱼类增强工作，以支持受欢迎的休闲渔业，并且作为食物来源和消费者在生态上都很重要。尽管沉没水生植被 (SAV) 栖息地的重要性和频繁使用，但缺乏关于影响栖息地占有率的 SAV 特定特征的关键信息。使用SAV物种美洲苦草和菹illinoensis，这是原产于美国东南部，与侵入SAV轮叶黑藻，我们进行了七个不同的栖息地选择的实验研究孵化场饲养的，年龄0 中号。佛罗里达州不同 SAV 种群的栖息地利用（即不同物理特征的水文隔离收集源）、种群多样性（即基因型和表型可变 SAV 的丰富度增加）、物种和物种多样性（即物种丰富度增加）。鱼在更高、更大的美洲 V. 中呆了更多的时间，但似乎不喜欢任何特定的P. illinoensis种群、SAV 物种或测试的物种多样性。此外，当使用的种群是随机的时，鱼花更多的时间在增加的V. americana种群多样性上，但当它们偏爱V. americana时，鱼花更多的时间在减少的种群多样性在所有选择中都使用了人口。这项研究为我们对鱼类栖息地利用的最佳植被的理解增加了额外的细微差别，并为未来的 SAV 种植和侵入性 SAV 管理提供了信息，旨在最大限度地扩大鱼类栖息地和恢复休闲渔业。