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Climatic variability and the anchovy/sardine ratio in Hellenic waters

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Abstract

In the present work, the monthly anchovy (Engraulis encrasicolus) and sardine (Sardina pilchardus) commercial catches, the anchovy/sardine commercial catch ratio as well as different climatic parameters in Hellenic waters (air and sea surface temperature AIRT and SST, sea level pressure SLP, N-S wind component NSW, and wind speed cubed WISC) over the 1964 to 1989 period were analyzed using spectral and cross-spectral analyses. The monthly anchovy and sardine catches as well as the anchovy/sardine catch ratio all exhibited a pronounced seasonal cycle that is related to the behaviour of sardine and anchovy and the nature of the purse seine fishery. Spectral analysis of the monthly sardine catches and anchovy/sardine catch ratio in the Hellenic waters also revealed cycles of 2.7 yr whereas that of anchovy catches revealed a prominent peak at 4.6 yr and secondary ones at 3.6 and 1.9 yr. Cross-spectral analysis resolved significant coherence between the anchovy/sardine ratio and SLP at 2.7 yr and marginally with NSW and WISC at 2.7 and 5.3 yr, respectively. The corresponding phase spectra showed that increased SLP and NSW over the north Aegean Sea proceed and are associated with decreased anchovy/sardine ratio with a lag of about 2.5 months for SLP and 6 months for NSW whereas increased WISC over the north Aegean proceed and are associated with increased anchovy/sardine ratio with a lag of 28 months. Cross-spectral analysis also resolved significant coherence between the anchovy catches and AIRT and SLP at 2.7 yr, NSW at 1.8 yr and WISC at 5.3 yr. The corresponding phase spectra showed that increased SLP, AIRT and NSW over the north Aegean Sea proceed and are associated with decreased anchovy catches with a lag of about 2 months for SLP, 16 months for AIRT and 6 months for NSW whereas increased WISC over the same area proceed and are associated with increased anchovy catches with a lag of 30 months. In contrast, cross-spectral analysis resolved no significant coherence between sardine catches and all five climatic variables. Possible mechanisms underlying such patterns are discussed.

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References

  • Bakun, A.: Comparative studies and the recruitment problem: Searching for generalizations. CalCOFI Rep. 26, 30-40 (1985).

    Google Scholar 

  • Bakun, A.; Christensen, V.; Curtis, C.; Cury, P.; Durand, M. H.; Husby, D.; Mendelssohn, R.; Mendo, J.; Parrish, R.; Pauly, D.; Roy, C.: The climate eastern ocean system project. Naga (ICLARM) 15(4), 26-30 (1993).

    Google Scholar 

  • Belveze, H.; Erzini, K.: The influence of hydroclimatic factors on the availability of the sardine (Sardina pilchardus, Walbaum) in the Moroccan Atlantic fishery. FAO Fish. Rep. 291, 285-328 (1983).

    Google Scholar 

  • Charbonnier, D.; Garcia, S. (eds).: Third technical consultation on stock assessment in the Balearic and Gulf of Lions statistical divisions. FAO Fish. Rep., 305, 110 pp. (1983).

  • Colebrook, J. M.; Taylor, A. H.: Significant time scales of long-term variability in the plankton and the environment. Rapp. P.-v. Reun. Cons. int. Explor. Mer 183, 20-26 (1984).

    Google Scholar 

  • Cushing, D. H.: Climate and fisheries. Academic Press Inc. London 1982.

    Google Scholar 

  • Daan, N.: A review of replacement of depleted stocks by other species and the mechanisms underlying such replacement. Rapp. P.-v. Reun. Cons. int. Explor. Mer 177, 405-421 (1980).

    Google Scholar 

  • Daoulas, Ch.; Economou, A.: Seasonal variation of egg size in the sardine, Sardina pilchardus Walb., of the Saronikos Gulf: causes and a probable explanation. J. Fish Biol. 28, 449-457 (1986).

    Google Scholar 

  • Dekhnik, T. V.; Rass, T. S.: Main aspects of the study on icthyoplankton. J. Icthyol. 28, 51-57 (1988).

    Google Scholar 

  • Dement'eva, T. F.: A method for correlation of environmental factors and year-class strength of fishes. J. Icthyol. 27, 55-59 (1987).

    Google Scholar 

  • Demir, N.: Synopsis of biological data on anchovy, Engraulis encrasicolus (Linnaeus) 1758 (Mediterranean and adjacent seas). FAO Fish. Synopsis 24, Rev. 1, 48 pp. (1965).

  • Dickson, R. R.; Kelly, P. M.; Colebrook, J. M.; Wooster, W. S.; Cushing, D. H.: North winds and production in the eastern Atlantic. J. Plankton Res. 10, 151-169 (1988).

    Google Scholar 

  • Hernandez, A. V.: Assessment of pelagic fish abundance along the eastern Adriatic coast with special regard to sardine (Sardina pilchardus) population. Acta Adriat. 24, 55-95 (1983).

    Google Scholar 

  • Kort, V. G.: Large-scale interaction between the ocean and the atmosphere using the North Pacific as an example. Oceanology 10, 171-183 (1970).

    Google Scholar 

  • Koslow, A. J.; Thompson, K. R.; Silvert, W.: Recruitment to Northwest Atlantic cod (Gadus morhua) and haddock (Melanogrammus aeglefinus) stocks: influence of stock size and climate. Can. J. Fish. Aquat. Sci. 44, 26-39 (1987).

    Google Scholar 

  • Larraneta, M. G.: La pesqueria de sardina, Sardina pilchardus (Walb.) de Castellon. Inv. Pesq. 45, 47-91 (1981).

    Google Scholar 

  • Lascaratos, A.: Daskalakis J.; Perivoliotis L.; Vlastos, N.: SEASPECT: A software package for oceanographic time series analysis. IOC/UNEP. University of Athens 1990.

  • MacCall, A. D.: Variability of pelagic stocks off California. FAO Fish. Rep. 291, 101-112 (1983).

    Google Scholar 

  • Mysak, L. A.: El Nino, interannual variability and fisheries in the Northwest Pacific Ocean. Can. J. Fish. Aquat. Sci. 43, 464-497 (1986).

    Google Scholar 

  • NSSH (National Statistical Service of Hellas): Statistical Year-Book. 26 issues (for the years 1964–1989), Athens, Hellas 1965–1992.

  • Palomera, I.; Lleonart, J.: Field mortality estimates of anchovy larvae, Engraulis encrasicolus, in the western Mediterranean. J. Fish Biol. 35(Suppl. A), 133-138 (1989).

    Google Scholar 

  • Pearce, A. F.; Phillips, B. F.: ENSO events, the Leeuwin current, and larval recruitment of the western rock lobster. J. Cons. perm. int. Explor. Mer 45, 13-21 (1988).

    Google Scholar 

  • Porumb, I. I.; Marinescu, F.: Influence du facteur nourriture sur la formation des agglomerations d'anchois dans la zone neritique roumaine de la Mer Noire. Rapp. Comm. int. Mer Medit. 25/26, 47-48 (1979).

    Google Scholar 

  • Pucher-Petkovic, T.; Zore-Armanda, M.; Kacic, I.: Primary and secondary production of the Middle Adriatic in relation to climatic factors. Thallasia Jugoslavia 7, 301-311 (1971).

    Google Scholar 

  • Regner, S.: The larval stages of fish in the Kastela Bay. Acta Adriat. 21, 123-136 (1980).

    Google Scholar 

  • Regner, S.: Ecology of planktonic stages of anchovy, Engraulis encrasicholus (Linnaeus, 1758), in the central Adriatic. Acta Adriat. 26, 5-113 (1985).

    Google Scholar 

  • Regner, S.; Gacic, J.: The fluctuation of sardine catch along the eastern Adriatic coast and solar activity. Acta Adriat. 15, 1-15 (1974).

    Google Scholar 

  • Regner, S.; Regner, D.; Marasovic, I.; Krsinic, F.: Spawning of sardine, Sardina pilchardus (Walbaum, 1792), in the Adriatic under upwelling conditions. Acta Adriat. 28, 161-198 (1987).

    Google Scholar 

  • Richards, W. J.; Lindeman, K. C.: Recruitment dynamics of reef fishes: planktonic processes, settlement and demersal ecologics, and fishery analysis. Bull. Mar. Sci. 41, 392-410 (1987).

    Google Scholar 

  • Shannon, L. V.; Crawford, R. J. M.; Brundrit, G. B.; Underhill, L. G.: Responses of fish populations in the Benguela ecosystem to environmental change. J. Cons. int. Explor. Mer 45, 5-12 (1988).

    Google Scholar 

  • Sinclair, M.; Illes, T. D.: Population regulation and speciation in the oceans. J. Cons. int. Explor. Mer 45, 165-175 (1989).

    Google Scholar 

  • Smith, P. E.: Biological effects of ocean variability: time and space scales of biological responses. Rapp. P.-v. Cons. int. Explor. Mer 173, 117-127 (1978).

    Google Scholar 

  • Soutar, A.; Isaacs, J. D.: Abundance of pelagic fish during the 19th and 20th centuries as recorded in anaerobic sediments off California. Fish. Bull. US 72, 257-275 (1974).

    Google Scholar 

  • Spanakis, E.; Tsimenidis, N.; Zouros, E.: Genetic differences between populations of sardine, Sardina pilchardus, and anchovy, Engraulis encrasicolus, in the Aegean and Ionian seas. J. Fish. Biol. 35, 417-437 (1989).

    Google Scholar 

  • Stergiou, K. I.: Pre-war changes in the abundance of Pagellus erythrinus, Merluccius merluccius, and Engraulis encrasicolus in Greek waters and climatic change. FAO Fish. Rep. 361, 99-105 (1986).

    Google Scholar 

  • Stergiou, K. I.: Multivariate analysis of the fishery of the northwestern coast of Greece, 1964–1981. Acta Adriat. 29, 161-170 (1988).

    Google Scholar 

  • Stergiou, K. I.: Modelling and forecasting the fishery of pilchard, Sardina pilchardus in Greek waters using ARIMA time series models. J. Cons. int Explor. Mer 46, 16-23 (1989).

    Google Scholar 

  • Stergiou, K. I.: Possible implications of climatic variability on the presence of capelin (Mallotus villosus) off the Norwegian coast. Climatic Change 19(4), 369-392 (1991a).

    Google Scholar 

  • Stergiou, K. I.: Describing and forecasting the sardine-anchovy complex in the eastern Mediterranean using vector autoregressions (VAR). Fish. Res. 11, 127-141 (1991b).

    Google Scholar 

  • Stergiou, K. I.: Variability of the monthly catches of anchovy Engraulis encrasicolus, in the Aegean Sea. Fish. Bull. US 90, 211-215 (1992).

    Google Scholar 

  • Stergiou K. I.; Christou, E. D.: Modelling and forecasting annual fisheries catches using regression and univariate and multivariate time series techniques. Fish. Res. 25, 105-138 (1996).

    Google Scholar 

  • Stergiou, K. I.; Pollard, D.: A spatial analysis of the commercial fisheries catches from the Hellenic Aegean Sea. Fish. Res. 20, 109-135 (1994).

    Google Scholar 

  • Stergiou, K. I.; Christou, E.; Petrakis, G.: Operational forecasting of Hellenic fisheries catches. Final Report (Contract No. Med92/019, EU), Stergiou & Co., Athens, June 1994 1: 184 pp. (1994).

    Google Scholar 

  • Taylor, G. T.; Prochaska, F. J.: Incorporating unobserved cyclical stock movements in fishery catch equations: An application to the Florida blue crab fishery. N. Amer. J. Fish. Manag. 4, 67-74 (1984).

    Google Scholar 

  • Tsimenidis, N.; Caragitsou, H.: The state of the sardine and anchovy resources in Greek Seas. Hell. Symp. Ocean. Fish. 1, 578-589 (in Greek) (1984).

    Google Scholar 

  • Vucetic, T.: Biological production of the Adriatic plankton. FAO Fish. Rep. 253, 65-71 (1981).

    Google Scholar 

  • Walline, P.: Growth and ingestion rates of larval fish populations in the coastal waters of Israel. J. Plankton Res. 9, 91-102 (1987).

    Google Scholar 

  • Yanopoulos, C.: The reproduction and the egg size variations of Sardina pilchardus Walb. in the Thermaikos Gulf, Aegean Sea. Rapp. Comm. Int. Mer Meddit. 24, 73-75 (1977).

    Google Scholar 

  • Zupanovic, S.: Causes of fluctuations in sardine catches along the eastern coast of the Adriatic Sea. Anali Jandranskog Instituta 4, 401-489 (1968).

    Google Scholar 

  • Zupanovic, S.: Biological effects of the hydroclimatic changes in the middle Adriatic. Acta Adriat. 26, 165-189 (1985).

    Google Scholar 

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Authors and Affiliations

  1. Department of Zoology, Aristotle University of Thessaloniki, P.O. Box 134, Laboratory of Ichthyology, 54006, Thessaloniki, Greece

    I. Konstantinos Stergiou

  2. Department of Applied Physics, Laboratory of Meteorology and Oceanography, 33 Ippokratous Street, 10680, Athens, Greece

    Alex Lascaratos

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  1. I. Konstantinos Stergiou
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Stergiou, I.K., Lascaratos, A. Climatic variability and the anchovy/sardine ratio in Hellenic waters. GeoJournal 41, 245–254 (1997). https://doi.org/10.1023/A:1006848224029

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