Morphometric variability of Arctodiaptomus salinus （Copepoda） in the Mediterranean-Black Sea region

作     者：Elena V.ANUFRIIEVA Nickolai V.SHADRIN 

作者机构：The AO Kovalevsky Institute of Marine Biological Research Russian Academy of Sciences 

出 版 物：《Zoological Research》 (动物学研究（英文）)

年 卷 期：2015年第36卷第6期

页      面：328-336页

核心收录：

学科分类：07[理学] 0713[理学-生态学] 

基　　金：The authors are grateful to Mr. Oleg Eryomin (Russia) who passed away on November 18  2014 for his help in all expeditions and to Mrs. Ekaterina Galagovets (Russia) for sample processing. Special thanks to Dr. Federico Marrone (Italy) who kindly provided the A. sa/inus samples from Spain  Italy  Tunisia and Dr. Bindy Datson (Australia) for her English editing of our manuscript 

主　　题：Crustacea Differentiation Morphology Sex differences Environmental factors 

摘      要：Inter-species variability in morphological traits creates a need to know the range of variability of characteristics in the species for taxonomic and ecological tasks. Copepoda Arctodiaptomus salinus, which inhabits water bodies across Eurasia and North Africa, plays a dominant role in plankton of different water bodies-from fresh to hypersaline. This work assesses the intra- and inter-population morphometric variability of A. sa/inus in the Mediterranean-Black Sea region and discusses some observed regularities. The variability of linear body parameters and proportions was studied. The impacts of salinity, temperature, and population density on morphological characteristics and their variability can manifest themselves in different ways at the intra- and inter-population levels. A significant effect of salinity, pH and temperature on the body proportions was not found. Their intra-population variability is dependent on temperature and salinity. Sexual dimorphism of A. salinus manifests in different linear parameters, proportions, and their variability. There were no effects of temperature, pH and salinity on the female/male parameter ratio. There were significant differences in the body proportions of males and females in different populations. The influence of temperature, salinity, and population density can be attributed to 80%-90% of intra-population variability of A. salinus. However, these factors can explain less than 40% of inter-population differences. Significant differences in the body proportions of males and females from different populations may suggest that some local populations ofA. salinus in the Mediterranean-Black Sea region are in the initial stages of differentiation.