PLANKTONIC BIOLUMINESCENCE IN THE PACK ICE AND THE MARGINAL ICE-ZONE OF THE BEAUFORT SEA
PLANKTONIC BIOLUMINESCENCE IN THE PACK ICE AND THE MARGINAL ICE-ZONE OF THE BEAUFORT SEA
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DOI：
10.1007/bf00346185
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发表时间：
1992-04-01
期刊：
影响因子：
2.4
通讯作者：
LIEBERMAN, SH
中科院分区：
文献类型：
--
作者：
LAPOTA, D;ROSENBERGER, DE;LIEBERMAN, SH
1986 年秋天，一艘破冰船航行到波弗特海，为研究冰原和边缘冰区的浮游生物发光提供了独特的机会。深海光度计模型（生物发光强度、海水温度、光束衰减系数和盐度）和生物采集深度为 100 m。光预算（描述了负责测量生物发光的浮游物种）和甲藻物种预算是根据发光浮游生物和浮游生物计数的平均光输出构建的。冰站之间生物发光的垂直分布相似。海冰界面上部 50 m 的最大强度为 2 至 8 x 10(6) 光子 s-1 cm-3。边缘冰区站（MIZ）在 5 至 30 m 深度之间表现出 2 至 3 x 10(8) 光子 s-1 cm-3 的最大强度。在 2 号冰站，Metridia longa 及其无节幼体贡献了上部 10 m 中约 80% 的可刺激生物发光，但总体而言，Protoperidinium spp。甲藻贡献了 100 m 深度的大部分光线。在 MIZ 中，Protoperidinium spp。甲藻在上部 10 m 内贡献了大约 90% 的光，在 40 m 深度处减少到贡献光的 43%。在 40 m 以下，甲藻的生物发光减少到总发光的百分之几，直至 90 m 的深度。梅特里迪亚属桡足类在 40 至 90 m 的深度贡献了超过 50% 的光。介形类、幼虫和磷虾在所有采样深度的生物发光中所占比例均小于 1%。测量的生物发光（光子 s-1 cm-3）、生物发光甲藻的数量和 MIZ 的光预算之间的相关分析表明存在高度显着的关联：分别为 r = 0.919，p = 0.001 和 r = 0.912，p < 0.001（学生的双尾 t 检验）。所有站点的生物发光与海水盐度呈负相关（p = 0.001）。在所有站点的盐度较低的地表水中测量了最大生物发光。
An icebreaker cruise into the Beaufort Sea in the fall of 1986 provided a unique opportunity for studying planktonic bioluminescence in ice fields and in the marginal ice zone. Bathyphotometer casts (bioluminescence intensity, seawater temperature, beam attenuation coefficient, and salinity) and biological collections were made to a depth of 100 m. A light budget, which describes the planktonic species responsible for the measured bioluminescence, and a dinoflagellate species budget were constructed from the mean light output from luminescent plankton and plankton counts. The vertical distribution of bioluminescence among the ice stations was similar. The maximum intensities were 2 to 8 x 10(6) photons s-1 cm-3 in the upper 50 m of the sea-ice interface. The marginal ice zone station (MIZ) exhibited a maximum intensity of 2 to 3 x 10(8) photons s-1 cm-3 between 5 and 30 m depth. At Ice Station 2, Metridia longa and their nauplii contributed approximately 80% of stimulable bioluminescence in the upper 10 m but, overall, Protoperidinium spp. dinoflagellates contributed most of the light to a depth of 100 m. In the MIZ, Protoperidinium spp. dinoflagellates contributed approximately 90% of the light within the upper 10 m, decreasing to 43% of the contributed light at a depth of 40 m. Below 40 m, dinoflagellate bioluminescence decreased to a few percent of the total to a depth of 90 m. Metridia spp. copepods contributed more than 50% of the light at depths from 40 to 90 m. Ostracods, larvaceans, and euphausiid furcilia contributed < 1 % of all bioluminescence at all depths sampled. Correlation analyses between measured bioluminescence (photons s-1 cm-3), the number of bioluminescent dinoflagellates and the light budget for the MIZ indicated highly significant associations: r = 0.919, p = 0.001, and r = 0.912, p < 0.001, respectively (Student's two-tailed t-tests). Bioluminescence was negatively correlated with seawater salinity at all stations (p = 0.001). Maximum bioluminescence was measured in the less saline surface waters at all stations.