海洋科学2016，Vol.40Issue(5)：9-18,10.DOI:10.11759/hykx20160105001
獐子岛养殖海域颗粒有机碳、颗粒氮的时空分布特征
Spatial-temporal distribution of particulate organic carbon and particulate nitrogen in the mariculture areas of Zhangzhi Island
摘要
Abstract
Several cruises have been conducted on the Zhangzi island aquaculture region, with 14 stations, in Au-gust, October, and December 2011 and April 2012. Hydrography data on particle organic carbon (POC) and par-ticulate nitrogen (PN) was collected, and the spatial–temporal distribution of the data was studied and analyzed. The results showed that variation in concentration of POC is in the following order: summer > autumn > spring > winter. The POC concentration in summer tends to be the highest, with a variation from 0.159 to 1.672 mg/L and 0.045 to 0.834 mg/L for surface and bottom water, respectively; the average POC concentration for the surface is (0.867 ± 0.451) mg/L and for bottom is (0.319 ± 0.204) mg/L. In winter, the bottom POC concentration reaches a minimum, and the range and average concentration for surface water is 0.020~0.530 mg/L and (0.240 ± 0.125) mg/L, respec-tively, and for the bottom water is 0.061~0.458 mg/L and and (0.221 ± 0.129) mg/L, respectively. The horizontal distribution of POC concentration tends to be homogenized for each season. The variation in PN concentration is as follows: summer > winter > autumn > spring. Similar to POC, the PN concentration in summer tends to be the highest with a range and average value of 0.026~0.439 mg/L and (0.193 ± 0.067) mg/L, respectively, for surface water, and 0.020~0.393 mg/L and (0.172 ± 0.060) mg/L, respectively, for bottom water. The minimum concentration of PN tends to appear in spring and the range and average are 0.059~0.178 mg/L and (0.120 ± 0.047) mg/L, respectively, for sur-face water, and 0.020~0.393 mg/L and (0.100 ± 0.050) mg/L, respectively, for bottom water. The PN concentration exhibits a spatial homogenized distribution similar to that of POC. The temporal distribution of concentration of Chl-a is as follows: summer > autumn > spring > winter. Vertical distributions for POC, PN, and Chl-a shows some similarities. The concentration of bottom water is slightly higher than that of surface water in the spring, and much higher surface concentrations can be observed relative to bottom water concentrations in summer and autumn. In win-ter, the concentrations in surface and bottom water tend to be similar. With the analysis of C/N and the ratio of POC to Chl-a (in concentration) the source of POC for the study region is discussed, and the source of the POC near Zhangzi island is concluded to primarily originate from marine organisms, not much terrigenous sediments.关键词
獐子岛/颗粒有机碳/颗粒氮/分布特征Key words
Zhangzi Island/Particulate Organic Carbon/Particulate Nitrogen/Distribution分类
农业科技引用本文复制引用
刘毅,张继红,杜美荣,蔺凡,丁刚,吴文广,房景辉..獐子岛养殖海域颗粒有机碳、颗粒氮的时空分布特征[J].海洋科学,2016,40(5):9-18,10.基金项目
国家自然科学基金项目(31302193) （31302193）
黄海水产研究所级基本科研业务费(20603022015017-3,20603022015017-2,20603022011003) （20603022015017-3,20603022015017-2,20603022011003）
公益性行业(农业)科研专项(201203017)@@@@National Natural Science Foundation of China, No.31302193 （农业）
Spe-cial Scientific Research Funds for Central Non-profit Institutes, Yelow Sea Fish-eries Research Institutes, No.20603022015017-3, No.320603022015017-2,20603022011003 （）
Public welfare industry (Agriculture) research, No.201203017。 （Agriculture）
