Lake charr exhibit morphological diversity in large North American lakes, largely attributed to habitat partitioning. Bathythermal habitats of lean lake charr have been assessed but remain largely unknown for other lake charr ecotypes. Popup satellite archival tags (PSATs) were used to determine depth and temperature profiles of lean (n = 15), siscowet (n = 16) and redfin (n = 3) lake charr ecotypes in Lake Superior during segments of the year. Monthly median depths of leans were < 20 m throughout the year while the median depth of redfins was 24–32 m (June-September). Monthly median depth of siscowets ranged from 103 to 204 m but they exhibited four distinctive patterns: deep (>80 m), shallow (<10 m), extreme vertical movements (>80–0 m), and high frequency vertical movements between 100 and 125 m. Siscowets were the most stenothermal with habitat temperatures generally 4–5 °C but not exceeding 12 °C. Leans were found as low as 0 °C (January-March) and up to 15 °C (July-September). Median monthly habitat temperatures for redfins were 1–3 °C colder than leans during July-September. PSATs confirmed that siscowets exhibit extreme vertical movements and may feed near the surface. The timing and duration of the extreme vertical movements exhibited by siscowets did not appear to be associated with time of day (i.e., not diel vertical movements) and may be described as opportunistic movements presumably related to foraging. Data obtained from the PSATs reinforces the view that lake charr are highly adaptive and can thrive in cold, oligotrophic lakes by optimizing the use of the entire water column.

夏尔湖在北美大型湖泊中表现出形态多样性，主要归因于栖息地划分。已经评估了贫瘠的夏尔湖的深热栖息地，但对于其他夏尔湖生态型而言，仍然很大程度上未知。弹出式卫星档案标签 (PSAT) 用于确定一年中苏必利尔湖中瘦 (n = 15)、siscowet (n = 16) 和 redfin (n = 3) 湖夏尔生态型的深度和温度分布。全年的月平均深度小于 20 m，而红鳍的平均深度为 24-32 m（6 月至 9 月）。siscowets 的月平均深度在 103 到 204 m 之间，但它们表现出四种不同的模式：深 (>80 m)、浅 (<10 m)、极端垂直运动 (>80-0 m) 和 100 米之间的高频垂直运动和 125 米。Siscowets 是最热的，栖息地温度通常为 4-5°C 但不超过 12°C。发现瘦肉低至 0 °C（1 月至 3 月）和高达 15 °C（7 月至 9 月）。在 7 月至 9 月期间，红鳍金枪鱼的月平均栖息地温度比瘦鱼低 1-3°C。PSATs 证实 siscoets 表现出极端的垂直运动，可能会在地表附近觅食。siscowets 表现出的极端垂直运动的时间和持续时间似乎与一天中的时间无关（即与昼夜垂直运动无关），并且可以被描述为可能与觅食有关的机会主义运动。从 PSAT 获得的数据强化了这样一种观点，即夏尔湖具有高度的适应性，并且可以通过优化整个水柱的使用在寒冷的贫营养湖泊中茁壮成长。