Oceanic lobate ctenophores possess feeding mechanics similar to the impactful coastal species Mnemiopsis leidyi
Oceanic lobate ctenophores possess feeding mechanics similar to the impactful coastal species Mnemiopsis leidyi
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海洋叶状栉水母具有与有影响力的沿海物种 Mnemiopsis leidyi 类似的摄食机制
DOI：
10.1002/lno.12232
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发表时间：
2022
影响因子：
4.5
通讯作者：
Colin, Sean P.
中科院分区：
文献类型：
--
作者：
Cordeiro, Malaika;Costello, John H.;Gemmell, Brad J.;Sutherland, Kelly R.;Colin, Sean P.
叶状栉水母通常是海洋上层和中水生态系统中数量占主导地位的成员。尽管如此，人们对它们的营养生态学知之甚少。在这些生态系统中经常发现多个共同出现的物种，并且似乎通过携带猎物的摄食流进行类似的摄食。我们量化了四种共生的、世界分布的叶状物种（Eurhamphaea vexilligera、cyropsis crystallina、Bolinopsis vitrea和leucothea multicornis）的流体动力学、形态和行为，以评估它们的摄食机制是否导致了摄食率和猎物选择的差异。我们将这四种海洋物种的摄食特征与被称为贪婪的浮游动物的沿海叶栉水母（Mnemiopsis leidyi）进行了比较。我们发现，尽管它们的形态多样，但五种叶片物种使用相同的机制来产生摄食流-它们的摄食流的流体动力学相似地是层流，流体变形率非常低。尽管具有相似的摄食电流特征，但物种在原地游泳行为和摄食姿势不同。我们表明，这些不同的行为和姿势导致不同的猎物遭遇率，并且一些海洋物种有可能以类似或大于m的速度进食。leidyi。因此，海洋栉水母的个体和综合营养影响可能比先前预测的要大得多。
Lobate ctenophores are often numerically dominant members of oceanic epipelagic and midwater ecosystems. Despite this, little is known about their trophic ecology. Multiple, co‐occurring species are often found in these ecosystems and appear to feed similarly via feeding currents that entrain prey. We quantified the hydrodynamics, morphology, and behavior of four co‐occurring, cosmopolitan lobate species (Eurhamphaea vexilligera,Ocyropsis crystallina,Bolinopsis vitrea, andLeucothea multicornis) to evaluate whether their feeding mechanics lead to differential feeding rates and prey selection. We compared the feeding characteristics of these four oceanic species to the coastal lobate ctenophore,Mnemiopsis leidyi, which is known as a voracious zooplanktivore. We found that despite their morphological diversity, the five lobate species used the same mechanism to generate their feeding current—the hydrodynamics of their feeding currents were similarly laminar and with very low fluid deformation rates. Despite having similar feeding current traits, the species had different in situ swimming behaviors and feeding postures. We show that these different behaviors and postures lead to different prey encounter rates and that several of the oceanic species have the potential to feed at rates similar to or greater thanM. leidyi. As such, the individual and combined trophic impact of oceanic lobate ctenophores is likely to be much greater than previously predicted.
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叶状栉水母 (Mnemiopsis leidyi) 捕食桡足类 Acaria tonsa 时使用的捕获机制
影响因子：
2.1
作者：
R. Waggett;J. Costello
通讯作者：
J. Costello
DOI：
10.1016/0146-6291(78)90590-8
发表时间：
1978-01-01
期刊：
DEEP-SEA RESEARCH
影响因子：
--
作者：
HARBISON, GR;MADIN, LP;SWANBERG, NR
通讯作者：
SWANBERG, NR
栉水母Leucothea sp. 觅食行为的行为学观察。
DOI：
--
发表时间：
1987
期刊：
影响因子：
--
作者：
W. Hamner;S. Strand;G. Matsumoto;Peggy P. Hamner
通讯作者：
Peggy P. Hamner
环境流体运动影响栉水母 Mnemiopsis leidyi 的游泳和摄食
影响因子：
2.1
作者：
K. Sutherland;J. Costello;S. Colin;J. Dabiri
通讯作者：
J. Dabiri
栉水母的游泳运动以及栉水母排的推进机制
影响因子：
2.6
作者：
George I. Matsumoto
通讯作者：
George I. Matsumoto