A 200-year archaeozoological record of Pacific cod (Gadus macrocephalus) life history as revealed through ion microprobe oxygen isotope ratios in otoliths

2018 ◽  
Vol 21 ◽  
pp. 1236-1246 ◽  
Author(s):  
Thomas Helser ◽  
Craig Kastelle ◽  
Aron Crowell ◽  
Takayuki Ushikubo ◽  
Ian J. Orland ◽  
...  
Keyword(s):  
Life History ◽  
Oxygen Isotope ◽  
Isotope Ratios ◽  
Ion Microprobe ◽  
Pacific Cod ◽  
Oxygen Isotope Ratios ◽  
Pacific Cod Gadus Macrocephalus ◽  
Gadus Macrocephalus

scholarly journals Pacific cod (Gadus macrocephalus) as a paleothermometer: otolith oxygen isotope reconstruction

2012 ◽  
Vol 39 (10) ◽  
pp. 3277-3283 ◽  
Author(s):  
Catherine F. West ◽  
Stephen Wischniowski ◽  
Christopher Johnston
Keyword(s):  
Oxygen Isotope ◽  
Pacific Cod ◽  
Pacific Cod Gadus Macrocephalus ◽  
Gadus Macrocephalus

Measurement of in-situ oxygen isotope ratios in monazite by SHRIMP ion microprobe: Standards, protocols and implications

2014 ◽  
Vol 380 ◽  
pp. 84-96 ◽  
Author(s):  
Daniela Rubatto ◽  
Benita Putlitz ◽  
Laure Gauthiez-Putallaz ◽  
Céline Crépisson ◽  
Ian S. Buick ◽  
...  
Keyword(s):  
Oxygen Isotope ◽  
Isotope Ratios ◽  
Ion Microprobe ◽  
Oxygen Isotope Ratios

scholarly journals The effect of temporal changes in life-history traits on reproductive potential in an exploited population of Pacific cod, Gadus macrocephalus

2010 ◽  
Vol 67 (8) ◽  
pp. 1659-1666 ◽  
Author(s):  
Yoji Narimatsu ◽  
Yuji Ueda ◽  
Takehiro Okuda ◽  
Tsutomu Hattori ◽  
Kunihiro Fujiwara ◽  
...  
Keyword(s):  
Life History ◽  
Population Size ◽  
Egg Production ◽  
Life History Traits ◽  
Reproductive Potential ◽  
Temporal Changes ◽  
Pacific Cod ◽  
Pacific Cod Gadus Macrocephalus ◽  
Gadus Macrocephalus ◽  
Old Females

Abstract Narimatsu, Y., Ueda, Y., Okuda, T., Hattori, T., Fujiwara, K., and Ito, M. 2010. The effect of temporal changes in life-history traits on reproductive potential in an exploited population of Pacific cod, Gadus macrocephalus. – ICES Journal of Marine Science, 67: 1659–1666. The population size of Pacific cod (Gadus macrocephalus) in the northeastern Pacific has fluctuated at high levels during the past 10 years, despite heavy exploitation from the juvenile stage. Annual changes in growth, age, and standard length (SL) at maturity, potential fecundity (PF), and total egg production are evaluated in relation to the population fluctuations. Most 4-year-old females were mature, and the SL at which 50% of 3-year-old females matured fluctuated very little over the years. However, the proportion of mature 3-year-old females varied significantly among years. The values of PF-at-age also varied among years and were explained by a model containing SL, condition factor, and oocyte diameter. The population size was negatively correlated with the proportion of mature females and the PF of females 3 years old, so the range of total egg production was smaller than that of spawning-stock biomasses. Eggs were produced mainly by young adults (3 and 4 years of age). The age of adult females did not affect recruitment success. It is suggested that plasticity of life-history traits allowed for compensation of total egg production and that the compensation contributed to maintaining the abundance of a population consisting mainly of young fish.

Age validation of Pacific cod (Gadus macrocephalus) using high-resolution stable oxygen isotope (δ 18O) chronologies in otoliths

2017 ◽  
Vol 185 ◽  
pp. 43-53 ◽  
Author(s):  
Craig R. Kastelle ◽  
Thomas E. Helser ◽  
Jennifer L. McKay ◽  
Chris G. Johnston ◽  
Delsa M. Anderl ◽  
...  
Keyword(s):  
High Resolution ◽  
Oxygen Isotope ◽  
Age Validation ◽  
Pacific Cod ◽  
Stable Oxygen Isotope ◽  
Pacific Cod Gadus Macrocephalus ◽  
Gadus Macrocephalus ◽  
Stable Oxygen
Sign in / Sign up

Export Citation Format

Share Document