AS  Vol.5 No.2 , February 2014
Model for stock-recruitment dynamics of the Peruvian anchoveta (Eugraulis ringens) off Peru
Abstract: This paper was aimed at re-examining the validity of the results from Cahuin et al. (Estuar. Coast. Shelf Sci. 84, 2009) and identifying a model to describe the stock-recruitment relationship of the Peruvian anchoveta (Eugraulis ringens). Regression analysis was used to determine if density-dependent effects were present. The analysis did not show the existence of any densitydependent effects. It is important to use environmental factors and take observational and process errors into account when attempting to identify density-dependent effects in fish populations. Sea surface temperature (SST) and Southern Oscillation Index (SOI) were used as independent variables to fit the recruitment dynamics of the anchoveta. Both SST and SOI were found to be significantly important parameters in structuring anchoveta dynamics according to Akaike Information Criterion (AIC) and R2 values. The results of this study do not correlate with the findings of Cahuin et al., (2009), where density-dependent effects and the presence of regimes were detected. In conclusion, the recruitment Rt is essentially determined in proportion to spawning stock biomass St, and then environmental factors in year t further change the recruitments. This mechanism is completely same with that for Japanese sardine proposed by Sakuramoto (The Open Fish. Sci. 5, 2012).
Cite this paper: Singh, A. , Sakuramoto, K. and Suzuki, N. (2014) Model for stock-recruitment dynamics of the Peruvian anchoveta (Eugraulis ringens) off Peru. Agricultural Sciences, 5, 140-151. doi: 10.4236/as.2014.52017.

[1]   Jacobson, L.D. and MacCall, A.D. (1995) Stock-recruitment models for Pacific sardine (Sardinops sagax). Canadian Journal of Fisheries and Aquatic Sciences, 52, 566-577.

[2]   Takasuka, A., Oozeki, Y., Kubota, H. and Lluch-Cota, S.E. (2008) Contrasting spawning temperature optima: Why are anchovy and sardine regime shifts synchronous across the North Pacific. Progress in Oceanography, 77, 225-232.

[3]   Takasuka, A. and Oozeki, Y. (2007) Optimal growth temperature hypothesis: Why do anchovy flourish and sardine collapse or vice versa under the same ocean regime? Canadian Journal of Fisheries and Aquatic Sciences, 64, 768-776.

[4]   Takasuka, A., Oozeki, Y., Kubota, H., Tsuruta, Y. and Funamoto, T. (2005) Temperature impacts on reproductive parameters for Japanese anchovy: Comparison between inshore and offshore waters, Fisheries Research, 76, 475-482.

[5]   Lluch-Belda, D., Lluch-Cota, D.B., Hernandez-Vazquez, S., Salinas-Zavala, C.A. and Schwartzlose, R.R. (1991) Sardine and anchovy spawning as related to temperature and upwelling in the California current system, CalCOFI Report, 32, 105-111.

[6]   Funamoto, T. (2007) Temperature-dependent stock-recruitment model for walleye Pollock (Theragra chalcogramma) around northern Japan. Fisheries Oceanography, 16, 515-525.

[7]   Funamoto, T., Yamamura, O., Kono, T., Hamatsu, T. and Nishimura, A. (2013) Abiotic and biotic factors affecting recruitment variability of walleye Pollock (Theragra chalcogramma) off the Pacific coast of Hokkaido, Japan. Fisheries Oceanography, 22, 193-206.

[8]   Borja, A., Uriarte, A., Valencia, V., Motos, L. and Uriarte, A. (1996) Relationships between anchovy (Engraulis encrasicolus L.) recruitment and the environment in the Bay of Biscay. Scientia Marina, 60, 179-192.

[9]   Santojanni, A., Arneri, E., Bernardini, V., Cingolani, N., Marco, M.D. and Russo, A. (2006) Effects of environmental variables on recruitment of anchovy in the Adriatic Sea. Climate Research, 31, 181-193.

[10]   Fromentin, J. and Plaque, B. (1996) Calanus and environment in the eastern North Atlantic. II. Influence of the North Atlantic oscillation on C. finmarchicusi and C. helgolandicus, Marine Ecology Progress Series, 134, 111-118.

[11]   Cahuin, S.M., Cubillos, L.A., Ñiquen, M. and Escribano, R. (2009) Climatic regimes and the recruitment rate of anchoveta, Engraulis ringens, off Peru. Estuarine Coastal and Shelf Science, 84, 591-597.

[12]   Wada, T. and Jacobson, L.D. (1998) Regimes and stockrecruitment relationships in Japanese sardine (Sardinops melanostictus) 1951-1995. Canadian Journal of Fisheries and Aquatic Sciences, 52, 2455-2463.

[13]   Hilborn, R. and Walters, C.J. (1992) Quantitative fisheries stock assessment: Choice dynamics and uncertainty. Chapman and Hall, New York.

[14]   Sakuramoto, K. (2012) A new concept of the stock-recruitment relationship for the Japanese sardine, Sardinops melanostictus. The Open Fisheries Science Journal, 5, 60-69.

[15]   Sakuramoto, K. and Suzuki, N. (2012) Effects of process and/or observation errors on the stock-recruitment curve and the validity of the proportional model as a stock-recruitment relationship. Fisheries Science, 78, 41-54.

[16]   Stöckl, D., Dewitte, K. and Thienpont, L.M. (1998) Validity of linear regression in method comparison studies: Is it limited by the statistical model or the quality of the analytical input data? Clinical Chemistry, 44, 2340-2346.

[17]   Ricker, W.E. (1975). Computation and interpretation of biological statistics of fish populations. Bulletin of the Fisheries Research Board of Canada, Bulletin 191, Ottawa.

[18]   Akaike, H. (1981) Likelihood of a model and information criteria. Journal of Econometrics, 16, 3-14.

[19]   Beverton, R.J.H. and Holt, S.J. (1957) On the dynamics of exploited fish populations. Fisheries Investigations, 19, 1-533.

[20]   Sakuramoto, K., Shimoyama, S. and Suzuki, N. (2010) Relationships between environmental conditions and fluctuations in the recruitment of Japanese sardine Sardinops melanostictus in the northwestern Pacific. Bulletin of the Japanese Society of Fisheries Oceanography, 74, 88-97.

[21]   Cianelli, L., Chan, K.S., Bailey, K.M. and Stenseth, N.C. (2004) Non-additive effects of the environment on the survival of a large marine fish population. Ecology, 85, 3418-3427.

[22]   Cianelli, L., Bailey, K.M., Chan, K.S., Belgrano, A. and Stenseth, N.C. (2005) Climate change causing phase transitions of walleye Pollock (Theragra chalcogramma) recruitment dynamics. Proceedings of the Royal Society B, 272, 1735-1743.

[23]   Funamoto, T. (2011) Causes of walleye Pollock (Theragra chalcogramma) recruitment decline in the Northern Sea of Japan: Implications for stock management. Fisheries Oceanography, 20, 95-103.

[24]   Mysak, L.A. (1986) El Nino interannual variability and fisheries in the Northeast Pacific Ocean. Canadian Journal of Fisheries and Aquatic Sciences, 43, 464-497.

[25]   Klyashtorin, L.B. (2001) Climate change and long-term fluctuations of commercial catches: The possibility of forecasting. FAO Fisheries Technical Paper, 410, 86 p.

[26]   Sakuramoto, K. (2013) A recruitment forecasting model for the Pacific stock of the Japanese sardine (sardinops Melanostictus) that does not assume density-dependent effects. Agricultural Sciences, 4, 1-8.

[27]   Sakuramoto, K. (2014) A common concept of population dynamics applicable to both Thrips imaginis (Thysanoptera) and the Pacific stock of the Japanese sardine (Sardinops melanostictus). Fisheries and Aguaculture Journal, in Press.