Systematic bias in estimates of reproductive potential of an Atlantic cod (Gadus morhua) stock: implications for stock–recruit theory and management

By C. T. Marshall, C. Needle, A. Thorsen, O. S. Kjesbu, N. Yaragina. 2006

149 citations recorded by the source corpus.

Subfields: Aquatic Science, Global and Planetary Change, Nature and Landscape Conservation

View Paper: https://www.semanticscholar.org/paper/dbef2b9386bd0954f533350de070f9e4098798e1

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In Aquatic Science

In Global and Planetary Change

In Nature and Landscape Conservation

Citations in the corpus

Ecosystem effects of the three capelin stock collapses in the Barents Sea (2009, background): “Marshall et al. (1998, 2006) showed that there was a substantial decrease in weight at length of prespawning female cod, hepatosomatic index (HSI; liver weight/fish weight) as well as total egg production per unit SSB (TEP/SSB) during the first capelin collapse.”
Spawning period of Mediterranean marine fishes (2010, background): “…management because, as a population parameter, it is included in various models that are used for the estimation of spawning stock biomass and total population fecundity (Marshall et al. 2006) and is also among the factors determining the reproductive potential of a stock (Jakobsen et al. 2009).”
Comparing rates of contemporary evolution in life-history traits for exploited fish stocks (2012, background): “The effect of 597 changing traits, whether of evolutionary nature or not, has been poorly integrated into the 598 fisheries assessment process, except in a few notable examples (e.g., Scott et al. 1999; 599 Marshall et al. 2000; Marshall et al. 2006).”
Analytical reference points for age-structured models: application to data-poor fisheries (2010, background): “Often, the egg-production relationship is unknown and the SSB is used as a surrogate, which implicitly assumes that weight-at-age is proportional to the quantity of eggs that would be produced at age (Goodyear, 1993; Murawski et al., 2001; Marshall et al., 2006).”
Review of size- and age-dependence in batch spawning : implications for stock assessment of fish species exhibiting indeterminate fecundity (2012, background): “However, this assumption does not always hold (Trippel, 1999; Marshall et al., 2003, 2006) and, when violated, can inject error into assessment models and subsequent management advice (Rothschild and Fogarty, 1989; Murawski et al., 2001; Scott et al., 2006).”
Why Should We Closely Monitor Fecundity in Marine Fish Populations (2008, background): “For most exploited marine species, fecundity is related to recruitment variation (Rickman et al., 2000), and stock-recruitment models representing relationship between parental population and number of offspring produced are widely used to assess stock viability (Marshall et al., 2006).”
Reproductive Timing in Marine Fishes: Variability, Temporal Scales, and Methods (2011, methodology): “Maturity data are also a prerequisite for estimating SSB, which has traditionally been used as an index of reproductive potential (Trippel 1999; Marshall et al. 2006).”
Integrating Reproductive Biology into Scientific Advice for Fisheries Management (2008, methodology): “The addition of estimates of sex ratio at length to SSB to produce FSB for northeast Arctic cod produced some difference in the perception of stock status relative to Blim (Marshall et al., 2006).”