Age, growth and population dynamics of two congeneric and invasive gobies, Rhinogobius giurinus and R. cliffordpopei (Actinopterygii, Gobiidae) in a plateau lake, southwestern China
Science & Technology
; Life Sciences & Biomedicine
类目[WOS]:
Marine & Freshwater Biology
研究领域[WOS]:
Marine & Freshwater Biology
英文摘要:
Although many goby species have become widely established outside of their native ranges, little is known yet about invasive population biology. The age, growth and population dynamics of two introduced goby species (Rhinogobius giurinus and Rhinogobius cliffordpopei) were quantified in Lake Erhai (southwest China) with the general aim to improve empirical knowledge and management strategies. The results revealed that their lifespan ranges 2 years. The size and time at sexual maturity for R. cliffordpopei was lower than for R. giurinus. R. cliffordpopei displayed higher total mortality, fishing mortality and exploitation rates than R. giurinus, whereas the natural mortality of R. cliffordpopei was lower than that of R. giurinus. The catch per unit effort of benthic fyke nets was low from April to June in R. cliffordpopei and from July to September in R. giurinus, whereas it was high from July to September in R. cliffordpopei and from April to June in R. giurinus. Thus, several specific strategies are suggested to improve the cost-efficiency of the current management practices related to the mesh size of benthic fyke nets used for physical removals, the timing of deployment of control actions and the use of synergic control methods.
关键词[WOS]:
GOBY NEOGOBIUS-MELANOSTOMUS
; FRESH-WATER FISH
; ROUND GOBY
; VON-BERTALANFFY
; HABITAT USE
; BIOLOGY
; DIET
; COMMUNITY
; RIVER
语种:
英语
项目资助者:
National Natural Science Foundation of China(31172387)
; Major Science and Technology Program for Water Pollution Control and Treatment of China(2008ZX07105-006-04)
; National S & T Supporting Program(2012BAD25B08)
; "ERG Marie Curie" Grant(PERG08-GA-2010-276969)
Age, growth and population dynamics of two congeneric and invasive gobies, Rhinogobius giurinus and R. cliffordpopei (Actinopterygii, Gobiidae) in a plateau lake, southwestern China.pdf（625KB）
1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China 2.CNRS, UPS, ENFA, UMR5174 EDB,Lab Evolut & Diversite Biol, F-31062 Toulouse, France 3.Lab Evolut & Div Biol, EDB UMR5174, F-31062 Toulouse, France 4.Univ Toulouse, UPS, UMR5174 EDB, F-31062 Toulouse, France 5.Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China 6.Yangtze River Fisheries Res Inst, Wuhan 430223, Peoples R China 7.Yangtze Valley Water Environm Monitoring Ctr, Wuhan 430010, Peoples R China
Age, growth and population dynamics of two congeneric and invasive gobies, Rhinogobius giurinus and R. cliffordpopei (Actinopterygii, Gobiidae) in a plateau lake, southwestern China.pdf
