Ontogenetic difference of beak elemental concentration and its possible application in migration reconstruction for Ommastrephes bartramii in the North Pacific Ocean  

作　　者：Zhou Fang Bilin Liu Xinjun Chen Yong Chen 

机构地区：[1]College of Marine Sciences,Shanghai Ocean University,Shanghai 201306,China [2]Laboratory for Marine Fisheries Science and Food Production Processes,Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China [3]National Engineering Research Center for Oceanic Fisheries,Shanghai Ocean University,Shanghai 201306,China [4]Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources of Ministry of Education,Shanghai Ocean University,Shanghai 201306,China [5]Key Laboratory of Oceanic Fisheries Exploration,Ministry of Agriculture,Shanghai 201306,China [6]School of Marine Sciences,University of Maine,Orono,Maine 04469,USA

出　　处：《Acta Oceanologica Sinica》2019年第10期43-52,共10页海洋学报（英文版）

基　　金：The National Natural Science Foundation of China under contract No.NSFC4147129;the China Postdoctoral Science Foundation under contract No.2017M610277;the Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources(Shanghai Ocean University),Ministry of Education under contract No.A1-0203-00-2009-6;the Fund of Key Laboratory of Open-Sea Fishery Development,Ministry of Agriculture,China under contract LOF 2018-02

摘　　要：The migration route of oceanic squid provides critical information for us to understand their spatial and temporal variations.Mark-recapture and electronic tags tend to be problematic during processing.Cephalopod hard structures such as the beak,containing abundant ecological information with stable morphology and statolithlike sequences of growth increments,may provide information for studying spatio-temporal distribution.In this study,we developed a method,which is based on elemental concentration of beaks at different ontogenetic stages and sampling locations,to reconstruct the squid migration route.We applied this method to Ommastrephes bartramii in the North Pacific Ocean.Nine trace elements were detected in the rostrum sagittal sections(RSS)of the beak using laser ablation inductively coupled plasma mass spectrometry(LA-ICP-MS).For those elements,significant differences were found between the different ontogenetic stages for phosphorus(P),copper(Cu)and zinc(Zn).Sodium(Na),P and Zn were chosen as indicators of sea surface temperature(SST)and a regression model was estimated.The high probability of occurrence in a particular area represented the possible optimal squid location based on a Bayesian model.A reconstructed migration route in this study,combining all the locations at different ontogenetic stages,was consistent with that hypothesized in previous studies.This study demonstrates that the beak can provide useful information for identifying the migration routes of oceanic squid.The migration route of oceanic squid provides critical information for us to understand their spatial and temporal variations. Mark-recapture and electronic tags tend to be problematic during processing. Cephalopod hard structures such as the beak, containing abundant ecological information with stable morphology and statolithlike sequences of growth increments, may provide information for studying spatio-temporal distribution. In this study, we developed a method, which is based on elemental concentration of beaks at different ontogenetic stages and sampling locations, to reconstruct the squid migration route. We applied this method to Ommastrephes bartramii in the North Pacific Ocean. Nine trace elements were detected in the rostrum sagittal sections(RSS) of the beak using laser ablation inductively coupled plasma mass spectrometry(LA-ICP-MS). For those elements,significant differences were found between the different ontogenetic stages for phosphorus(P), copper(Cu) and zinc(Zn). Sodium(Na), P and Zn were chosen as indicators of sea surface temperature(SST) and a regression model was estimated. The high probability of occurrence in a particular area represented the possible optimal squid location based on a Bayesian model. A reconstructed migration route in this study, combining all the locations at different ontogenetic stages, was consistent with that hypothesized in previous studies. This study demonstrates that the beak can provide useful information for identifying the migration routes of oceanic squid.

关 键 词：Ommastrephes bartramii BEAK TRACE element ONTOGENETIC stage MIGRATION route 

分 类 号：P73[天文地球—海洋科学]