Growth

The growth cessation model, which reduces the leverage of young fish on the estimate of asymptotic length (Maunder et al. 2018) and is available in Stock Synthesis.  

Research Summary

Mark and his collaborators have been involved in extensive research into modelling growth ranging from the development of a growth curve to the technical aspects of estimation. In 2014 he co-organized and chaired the CAPAM workshop on growth and acted as a guest editor for the Fisheries Research special issue (Maunder et al., 2016). He has highlighted the impact of growth misspecification on the fit to length-composition data and estimation of management quantities, and how this interacts with data weighting (Maunder and Piner, 2015; Wang et al., 2015). Mark lead the development of the growth cessation model now available in Stock Synthesis, which allows linear growth for juveniles and reduces the connection between juvenile and adult growth (Maunder et al., 2018). His collaborations have investigated biases in growth estimates caused by factors such as ontogenetic movement (Lee et al., 2017), size-based selectivity, and size-based sampling (Piner et al., 2016). Collaborations have also included extending the methods used to estimate growth fitting simultaneously to both age-length data and growth increment data (Aires-da-Silva et al., 2015; Francis et al., 2016), developing growth functions base on the cost of reproduction (Minte-Vera et al., 2016; Maunder et al., 2018), reliability of growth estimates within the stock assessment model (Zhu et al., 2016), how growth influences the surplus production function and reference points (Maunder, 2003), differences due to aging methods (Chang and Maunder, 2012), and various methods to deal with measurement error (Maunder 2002).    


Relevant Papers

Maunder, M.N., Deriso, R.B., Schaefer, K.M., Fuller, D.W., Aires-da-Silva, A.M., Minte‑Vera, C.V., Campana, S.E. 2018. The growth cessation model: a growth model for species showing a near cessation in growth with application to bigeye tuna (Thunnus obesus). Marine Biology. 165(76). https://link.springer.com/article/10.1007/s00227-018-3336-9

Lee, H.H., Thomas, L.R., Piner, K.R. and Maunder, M.N., 2017. Effects of age‐based movement on the estimation of growth assuming random‐at‐age or random‐at‐length data. Journal of Fish Biology, 90: 222-235. https://onlinelibrary.wiley.com/doi/full/10.1111/jfb.13177?casa_token=eTilR7sv_6EAAAAA%3Ae5KmmFDuw190ZmMEOCARKuc4vISS83ZwO6IdRUjY4Vzvm3By-94iKpe7lOvrifvt7jW5NdWkG9N1Yg

Francis, C., Aires-da-Silva, A., Maunder, M. N., Schaefer, K. M., Fuller, D. W. 2016. Estimating fish growth for stock assessments using both age–length and tagging-increment data. Fisheries Research, 180: 113-118. https://www.sciencedirect.com/science/article/abs/pii/S0165783615001915

Maunder, M.N., Crone, P.R, Punt, A.E., Valero, J.L., Semmens B. X.  2016. Growth: Theory, estimation, and application in fishery stock assessment models. Fisheries Research, 180: 1-3. https://www.sciencedirect.com/science/article/abs/pii/S0165783616300613

Minte-Vera, C. V., Maunder, M. N., Casselman, J. M., Campana, S. E. 2016. Growth functions that incorporate the cost of reproduction. Fisheries Research, 180: 31-44. https://www.sciencedirect.com/science/article/abs/pii/S0165783615301193

Piner, K. R., Lee, H. H. and Maunder, M. N. 2016. Evaluation of using random-at-length observations and an equilibrium approximation of the population age structure in fitting the von Bertalanffy growth function. Fisheries Research. 180: 128-137. https://www.sciencedirect.com/science/article/abs/pii/S0165783615001733

Zhu, J., Maunder, M. N., Aires-da-Silva, A. M., Chen, Y. 2016. Estimation of growth within Stock Synthesis models: Management implications when using length-composition data. Fisheries Research, 180: 87-91. https://www.sciencedirect.com/science/article/abs/pii/S0165783615300953

Maunder, M.N., Piner, K.R. 2015. Contemporary fisheries stock assessment: many issues still remain. ICES Journal of Marine Science. 72 (1): 7-18. https://academic.oup.com/icesjms/article/72/1/7/819352

Aires-da-Silva, A., Maunder, M.N., Schaefer, K.M., Fuller, D.W. 2015. Improved growth estimates from integrated analysis of direct aging and tag-recapture data: an illustration with bigeye tuna (Thunnus obesus) of the eastern Pacific Ocean with implications for management. Fisheries Research, 163: 119-126. https://www.sciencedirect.com/science/article/abs/pii/S016578361400126X

Wang, S. P., Maunder, M. N., Nishida, T., Chen,Y. R. 2015.  Influence of model misspecification, temporal changes, and data weighting in stock assessment models: Application to swordfish (Xiphias gladius) in the Indian Ocean. Fisheries Research, 166: 119-128. https://www.sciencedirect.com/science/article/abs/pii/S0165783614002483

Chang, S-K. and Maunder, M.N. 2012. Aging material matters in the estimation of von Bertalanffy growth parameters for dolphinfish (Coryphaena hippurus). Fisheries Research 119-120: 147– 153. https://www.sciencedirect.com/science/article/abs/pii/S0165783612000392

Maunder, M.N. 2003. Is it time to discard the Schaefer model from the stock assessment scientist’s toolbox? Fisheries Research, 61: 145-149. https://www.sciencedirect.com/science/article/abs/pii/S0165783602002734

Maunder, M.N. 2002. Growth of skipjack tuna (Katsuwonus pelamis) in the eastern Pacific Ocean, as estimated from tagging data. Inter American Tropical Tuna Commission Bulletin, 22(2): 93-131. (in English and Spanish). http://aquaticcommons.org/6876/


CAPAM workshop reports

Maunder, M.N., Crone, P.R., Valero, J.L., and Semmens, B. X. 2015. Growth: theory, estimation, and application in fishery stock assessment models. CAPAM Workshop Series Report 2: 55 pp. http://www.capamresearch.org/sites/default/files/CAPAM_Growth%20Workshop_Series%20Report%202.pdf


Reports

Maunder, M.N. (2002) Growth of skipjack tuna (Katsuwonus pelamis) in the eastern Pacific Ocean, as estimated from tagging data. Inter American Tropical Tuna Commission Bulletin, 22(2): 93-131. (in English and Spanish) https://iattc.org/GetAttachment/bc179117-bcdf-4ba6-a102-e13941ac5daa/Vol-22-No-2-2001-MAUNDER,-MARK-N_Growth-of-skipjack-tuna-Katsuwonus-pelamis-in-the-eastern-Pacific-Ocean,-as-estimated-from-tagging-data.pdf