大多数大型浮游动物具有更宽的饮食生态位宽度,并利用小型无脊椎动物,微浮游动物和中浮游动物,因此,对初级生产的影响可能是通过营养级联效应。为了更好地了解底栖牡蛎-大型藻类礁的生态系统结构,我们分析了祥云湾2km2海牧场区域底栖礁石建设前后(2016年7月)和之后(2016年9月至2017年10月)的浮游动物群落结构,唐山,中国。我们确定了57种浮游动物,包括12名刺客(例如,半夏松香和艾琳松香),1个ctenopharyngodon(胸膜臂globosaMoser),24甲壳类动物(例如,中华民国布罗德斯基,ParacalanusParvusClaus,LabiboceraeuchaetaGlesbrecht,LabibocerabipinnataTanaka,CalanopiaThompsoniScott,和背脊汤普森),1个chaetognath(射门得分Tokioka),1种尿毒症(OikopleuradioicaFol),和18种浮游多毛和腹足纲幼虫。造礁前浮游动物密度和生物量值分别为266.14ind/m3和2.72mg/m3,礁石建设后的值分别为138.06ind/m3和32.91mg/m3。生物量趋势如下:2017年10月(89.08mg/m3)>2017年8月(70.97)>2016年9月(3.17)>2016年7月(2.72)>2017年6月(0.86)>2017年5月(0.44)。常见的优势生物是甲壳类和毛毛虫。根据RDA排名结果,水温与Shannon-Wiener多样性指数和Margalef丰富度指数呈正相关。随着Margalef的丰富度指数的增加,溶解氧含量值与浮游动物丰度呈显著负相关。本研究结果适用于沿海礁生态系统的可持续发展和管理策略,并为进一步调查海洋牧场地区的次级生产力提供了依据。
Majority of macrozooplankton have a wider dietary niche breadth and utilize small invertebrates, microzooplankton and mesozooplankton, so effect on primary production might be through trophic cascading effect. To better understand the ecosystem structure of benthic oyster-macroalgae reefs, we analyzed zooplankton community structure before (July 2016) and after (from September 2016 to October 2017) the construction of benthic reefs in the 2 km2 sea ranch area in Xiangyun Cove, Tangshan, China. We identified 57 zooplankton species, including the 12 cnidarian (e.g., Clytia hemisphaerica Linnaeus and Eirene ceylonensis Browne), 1 ctenopharyngodon (Pleurobrachia globosa Moser), 24 crustacean (e.g., Calanus sinicus Brodsky, Paracalanus parvus Claus, Labibocera euchaeta Glesbrecht, Labibocera bipinnata Tanaka, Calanopia thompsoni Scott, and Centropages dorsispinatus Thompson), 1 chaetognath (Sagitta crassa Tokioka), 1 urochordate species (Oikopleura dioica Fol), and 18 species of planktonic polychaete and gastropod larvae. The zooplankton density and biomass values before reef construction were 266.14 ind/m3 and 2.72 mg/m3, respectively, and those after reef construction were 138.06 ind/m3 and 32.91 mg/m3, respectively. The biomass trend was as follow: October 2017 (89.08 mg/m3) > August 2017 (70.97) > September 2016 (3.17) > July 2016 (2.72) > June 2017 (0.86) > May 2017 (0.44). The common dominant organisms were crustaceans and chaetognaths. According to the RDA ranking results, water temperature was positively correlated with the Shannon-Wiener diversity index and Margalef\'s richness indexes. With the increasement of Margalef\'s richness index, the value of dissolved oxygen content showed a significant negative correlation with zooplankton abundance. The results of this study are applicable to sustainable development and management strategies of coastal reef ecosystems and provide a basis for further surveys of secondary productivity in the sea ranch area.