Benthic–limnetic morphological variation in fishes: Dissolved organic carbon concentration produces unexpected patterns
Benthic–limnetic morphological variation in fishes: Dissolved organic carbon concentration produces unexpected patterns
复制标题
鱼类的底栖-湖沼形态变化：溶解有机碳浓度产生意想不到的模式
DOI：
10.1002/ecs2.3965
复制
发表时间：
2022
期刊：
影响因子：
2.7
通讯作者：
Solomon, Christopher T.
中科院分区：
文献类型：
--
作者：
Bishop, Chelsea E.;Gahm, Kaija;Hendry, Andrew P.;Jones, Stuart E.;Stange, Madlen;Solomon, Christopher T.
许多鱼类在底栖和湖沼生境中的觅食和运动相关性状的变异已经被观察到。湖泊中的底栖动物和湖沼动物食物链生产力的强烈影响，溶解有机碳（DOC）在水中的浓度，这表明DOC可能间接地施加这些特征的选择，并导致经典的底栖形式在低DOC浓度和湖沼形式在高DOC浓度。我们测试了这一假设，通过几何形态和分裂分析蓝鳃太阳鱼（Lepomis macrochirus，Centrarchidae）从14个湖泊DOC浓度范围为4至24 mg/L。这些湖泊相互靠近，横跨密西西比河和美国威斯康星州北方的劳伦特五大湖流域之间的分水岭。尽管盆地之间的形态存在差异，但蓝鳃鱼形态与两个流域的湖泊DOC浓度始终相关。高DOC湖泊的鱼有更深的身体和更小的头，除其他差异外，虽然DOC描述的形状变化的比例很低。鳃耙长度和鳃耙间距与DOC浓度呈正相关。虽然有些性状，因此DOC浓度相关，这些关系的方向并不符合预测的底栖湖沼模式。此外，在单变量分析中，DOC和鳃耙数、眼宽、胸鳍尺寸或胸鳍插入角之间没有明显的关系。这些变量的结果表明，选择链接到DOC不映射整齐地到经典的底栖-湖沼轴，高DOC有利于底栖-湖沼通才，而不是湖沼专家，或者底栖-湖沼形态二分法是不太清楚和普遍的比通常建议。
Variation in traits related to foraging and locomotion in benthic and limnetic habitats has been observed in many fishes. Benthic and limnetic food chain productivity in lakes is strongly influenced by the concentration of dissolved organic carbon (DOC) in the water, suggesting that DOC might indirectly impose selection on these traits and lead to classic benthic forms at low DOC concentrations and limnetic forms at high DOC concentrations. We tested this hypothesis via geometric morphometric and meristic analyses of bluegill sunfish (Lepomis macrochirus, Centrarchidae) from 14 lakes with DOC concentrations ranging from 4 to 24 mg/L. These lakes, located in close proximity to each other, straddle the drainage divide between the Mississippi River and Laurentian Great Lakes basins in northern Wisconsin, USA. Bluegill morphology was consistently related to lake DOC concentration in both drainage basins, despite differences in morphology between basins. Fish from higher DOC lakes had deeper bodies and smaller heads, among other differences, though the proportion of shape variation described by DOC was low. Gill raker length and inter‐raker spacing were positively related to DOC concentration. Although some traits were thus related to DOC concentration, the directions of these relationships did not match the predicted benthic–limnetic patterns. Further, no relationships were evident between DOC and gill raker number, eye width, pectoral fin dimensions, or pectoral fin insertion angle in univariate analyses. These variable outcomes suggest that selection linked to DOC does not map neatly onto the classic benthic–limnetic axis, that high DOC favors a benthic–limnetic generalist rather than a limnetic specialist, or that the benthic–limnetic morphological dichotomy is less clear and universal than is often suggested.
登录
查看更多内容
对于湖泊浮游动物来说，陆地碳是一种资源，但不是补贴。
影响因子：
4.8
作者：
P. Kelly;C. Solomon;B. Weidel;Stuart E. Jones
通讯作者：
Stuart E. Jones
影响因子：
64.8
作者：
DOMINEY, WJ
通讯作者：
DOMINEY, WJ
影响因子：
7.8
作者：
Jones, Stuart E.;Zwart, Jacob A.;Solomon, Christopher T.
通讯作者：
Solomon, Christopher T.
生活史的限制解释了鱼类生产力与湖泊中溶解有机碳之间的负相关关系。
影响因子：
2.6
作者：
Craig N;Jones SE;Weidel BC;Solomon CT
通讯作者：
Solomon CT
光照气候和溶解有机碳浓度影响鱼类浮游动物的物种特异性变化
影响因子：
3.1
作者：
B. Weidel;Katherine Baglini;Stuart E. Jones;P. Kelly;C. Solomon;Jacob Aaron Zwart
通讯作者：
Jacob Aaron Zwart