Sustainable Marine Structures

Status stock and Sustainable Management Measures for Moroccan Sardines

Abdelaziz Mounir

Laboratory of Water, Biodiversity & climate change, Department of Biology, Faculty of Sciences, Semlalia, Cadi Ayyad University, Marrakech, 40000, Morocco ;The Natural History Museum of Marrakech, Research Centre on Biodiversity, Cadi Ayyad University, Bd Allal El Fassi, Marrakech, Morocco

Mohammed Znari

Laboratory of Water, Biodiversity & climate change, Department of Biology, Faculty of Sciences, Semlalia, Cadi Ayyad University, Marrakech, 40000, Morocco ;The Natural History Museum of Marrakech, Research Centre on Biodiversity, Cadi Ayyad University, Bd Allal El Fassi, Marrakech, Morocco

Hayat Elmghazl

Laboratory of Water, Biodiversity & climate change, Department of Biology, Faculty of Sciences, Semlalia, Cadi Ayyad University, Marrakech, 40000, Morocco ;The Natural History Museum of Marrakech, Research Centre on Biodiversity, Cadi Ayyad University, Bd Allal El Fassi, Marrakech, Morocco

Hassan Alahyane

Laboratory of Molecular and Ecophysiology Modelling, Faculty of Sciences Semlalia, University Cadi Ayyad, Marrakech, 40000, Morocco

Noreddine chouikh

Laboratory of Aliments, Environnement and health, Faculty of Sciences and Techniques, University Cadi Ayyad, Marrakech, Morocco

Nawal Hichami

Laboratory of Biotechnology & sustainable development of Natural Ressources, Polydisciplinary faculty of Beni Mellal, Sultan Moulay Slimane University, Mghila, Beni Mellal, 23000, Morocco

DOI: https://doi.org/10.36956/sms.v3i2.433

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Abstract

This article summarizes the state of stocks of sardine, sardina pilchardus in Moroccan waters at the end of 2016 and 2018. These stocks varies according to the region,They are now in a sustainable exploitation situation:Atlantic sardine, but also stocks that have reached or are still in over-exploitation levels: Mediterranean sardine. The fi shing pressure exerted on the sardine stock exceeds the optimal level by 40%. Due to the degradation of the fragile marine environment of the Mediterranean region, generated by pollution of various origins, the overexploitation of juveniles in the coastal strip, non-responsible practices and the use of non-fi shing gearselective, it is imperative to take the necessary measures to protect the marine environment and ensure rational and sustainable exploitation of the resource. (High commission plan 2006 report).

Keywords: Sardina pilchardus; Exploitation; Stock variation; Environment; Moroccan waters

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References

[1] FAO (2015). Résume sur l'état des stocks de petits pélagiques dans la zone Nord de l'Atlantique centre-est - COPACE : principaux résultats du groupe de travail de la FAO sur l'évaluation des petits pélagiques au large de l'Afrique du nord-ouest. Comité des pêches pour l'atlantique centre-est sous-comité scientifique septième session Tenerife, Espagne, 14 - 16 octobre 2015. CECAF/SSCVII/2015/2.

[2] FAO (2015). Report of the workshop on the age estimation of Sardine and Sardinella in Northwest Africa Casablanca, Morocco, 20-25 July 2015. FAO Fisheries Report No. 1122. Available at ftp://ftp.fao.org/FI/DOCUMENT/cecaf/Cecaf_SSC7/Ref4b.pdf.

[3] Bakun, A., 2006. Wasp-waist populations and marine ecosystem dynamics: Navigating the “predator pit” topographies. Progress in Oceanography, 68: 271-288.

[4] Rice, J., 1995. Food web theory, marine food webs, and what climate change may do to northern marine fish populations. In: R.J. Beamish (ed.), Climate change and northern fish populations, Canadian Special Publication, Fisheries and Aquatic Sciences, 121, 561-568.

[5] Cury P, et al., 2000. Small pelagics in upwelling systems: Patterns of interaction and structural changes in “wasp-waist” ecosystems. ICES J Mar Sci 57(3), 603-618.

[6] Harley, C. D. G., Hughes, A. R., Hultgren., K. M., Miner, B. G., Sorte, C. J. B., Thornber,C. S., Rodriguez L. F., et al., 2006. The impacts of climate change in coastal marine systems , Ecology Letters , vol. 9 (pg. 228-241).

[7] Lehodey, P., Alheit, J., Barange, M., Baumgartner, T.,Beaugrand, G., Drinkwater, K., Fromentin, J. M., et al., 2006. Climate variability, fish, and fisheries. Journal of Climate, 19, 5009-5030.

[8] Tasker, M. (Ed.) 2008. The effects of climate change on the distribution and abundance of marine species in the OSPAR maritime area. ICES Cooperative Research Report, 293. 45 pp.

[9] Rijnsdorp, A. D., van Beek, F. A., Flatman, S., Miller, J. M., Riley, J. D., Giret, M., de Clerk, R., 1992. Recruitment of sole, Solea solea (L.), in the Northeast Atlantic. Netherlands Journal of Sea Research, 29, 173-192.

[10] Fréon, P., Cury, P., Shannon, L. and Roy, C., 2005. Sustainable exploitation of small pelagic fish stocks challenged by environmental and ecosystem changes: a review. Bulletin of Marine Science 76, 385-462.

[11] Cury, P., Roy, C., 1989. Optimal environmental window and pelagic fish recruitment success in upwelling areas. Canadian Journal of Fisheries and Aquatic Sciences 46, 670-680.

[12] Hunter, J. R., Alheit, J., 1995. International GLOBEC Small Pelagic Fishes and Climate Change program. GLOBEC Report No. 8.

[13] Kawasaki,T., 1980. Fundamental relations among the sélections of life history in the marine teleosts. Bull. Jap. Soc. Sci. Fisheries, 46, 289-293.

[14] Roy, C., 1992. Réponses des stocks de poissons pélagiques a la dynamique des upwellings en Afrique de l'Ouest : analyse et modélisation. PhD thesis, Université de Bretagne Occidentale.

[15] Crawford, R. J. M., Shannon, L. V., D. E., Pollock., 1987. The Benguela ecosystem. 4. The major fish and invertebrate resources. In Oceanography and Marine Biology. An Annual Review. 25. Barnes, M. (Ed.). Aberdeen; University Press: 353-505.

[16] Chavez, F.P., Ryan, J., Lluch-Cota, S.E., Niquen, C.M., 2003. From anchovies to sardines and back: Multidecadal change in the Pacific Ocean. Science 299(5604), 217-221.

[17] Takasuka, A., Oozeki, Y., Kubota, H., Lluch-Cota,S.E., 2008. Contrasting spawning temperature optima: Why are anchovy and sardine regime shifts synchronous across the North Pacific? Prog Oceanogr 77(2-3), 225-232.

[18] Lindegren M, Checkley, D.M., 2013. Temperature dependence of Pacific sardine (Sardinops sagax) recruitment in the California Current revisited and revised. Can J Fish Aquat Sci 70(2), 245-252.

[19] Rykaczewski, R.R, Checkley, D.M, J.r., 2008. Influence of ocean winds on the pelagic ecosystem in upwelling regions. Proc Natl Acad Sci USA 105(6), 1965-1970.

[20] Alheit, J., Roy, C., Kifani, S., 2009. Decadal-scale variability in populations. Climate Change and Small Pelagic Fish, 285-299.

[21] Lluch-Belda, D., et al., 1989. Worldwide fluctuations of sardine and anchovy stocks— the regime problem. S Afr J Mar Sci 8(1), 195-205.

[22] MacCall, A.D., 2009. Climate Change and Small Pelagic Fish,eds Checkley DM, Alheit J, Oozeki Y (Cambridge Univ Press, Cambridge, UK), pp 285-299.

[23] Hichami, N. and Mounir A., 2019. “Ecological aspects of anchovy : Engraulis encrasicolus (Engraulidae. Teleostei) in the moroccan atlantic cost,” International Journal of Innovation and Scientific Research, vol. 41, no. 2, pp. 80-91.

[24] Canales, T.M., Law, R., Wiff, R., Blanchard, J. L. 2015. Changes in the size-structure of a multispecies pelagic fishery off Northern Chile. Fisheries Research, 161, 261-268.

[25] Swartzman, G., Bertrand, A., Gutiérrez, M., Bertrand, S., and Vasquez, L., 2008. The relationship of anchovy and sardine to water masses in the Peruvian Humboldt Current System from 1983 to 2005. Progress in Oceanography, 79, 228-237.

[26] Cropper E.T., Hanna E. and Bigg G.R.; 2014: Spatial and temporal seasonal trends in coastal upwelling off Northwest Africa, 1981-2012. Deep Sea Res., 86, 94-111.

[27] Benazzouz A., Mordane S., Orbi A., Chagdali M., Hilmi K.,Atillah A., Pelegri J. L., Demarcq Hervé. (2014). An improved coastal upwelling index from sea surface temperature using satellite-based approach: the case of the Canary Current upwelling system. Continental Shelf Research, 81, p. 38-54. ISSN 0278-4343.

[28] Barton, E., Aristegui, J., Tett, P., Cantón, M., Garc?aBraun, J., Hernández-León, S., Nykjaer, L., et al. 1998. The transition zone of the Canary Current upwelling region. Progress in Oceanography, 41, 455-504.

[29] Arístegui, J., Barton, E. D., Álvarez-Salgado, X. A., Santos, A. M. P., Figueiras, F. G., Kifani, S., Hernández-León, S., et al., 2009. Sub-regional ecosystem variability in the Canary Current upwelling. Progress in Oceanography 83, 33-48.

[30] Mittelstaedt, E., 1991. The ocean boundary along the northwest African coast: circulation and oceanographic properties at the sea surface. Progress in Oceanography 26, 307- 355. DOI: http://dx.doi.org/10.1016/0079-6611(91)90011-A.

[31] Chavance, P., Ba, I., Krivospichenko, S., 1991. Les ressources pélagiques de la zee mauritanienne. Bull. cent. Nat. Rech. Océanogr. Et des pêches, Nouadhibou., 23, 28- 72.

[32] Arístegui, J., Alvarez-Salgado, X. A., Barton, E. D., Figueiras, F. G., Hernandez-León, S., Roy, C., and Santos, A., 2006. Oceanography and fisheries of the Canary 177 Current/Iberian region of the Eastern North Atlantic (18a, E). The global coastal ocean: Interdisciplinary regional studies and syntheses, 14: 879.

[33] Pickett, M.H., Paduan, J.D., 2003. Ekman transport and pumping in the California Current based on the U.S. Navy’s high-resolution atmospheric model COAMPS. Journal of Geophysical Research 108 (C10), 3327. DOI: http://dx.doi.org/10.1029/2003JC00190.

[34] Binet, D., 1991. Dynamique du plancton dans les eaux côtières ouest-africaines : écosystèmes équilibrés et déséquilibrés. in : Pêcheries ouest-africaines, variabilité, instabilité et changement (cury p. & c. roy, eds). Paris : ORSTOM., pages 117-136.

[35] Mbaye, B.C., Brochier, T., Echevin, V., Lazar, A., Lévy, M., Mason, E., Gaye, A. T. Machu, E. 2015 .Do Sardinella aurita spawning seasons match local retention patterns in the Senegalese-Mauritanian upwelling region? Fisheries Oceanography 24, 69-89. DOI: http://dx.doi.org/10.1111/fog.12094.

[36] Medina-Gaertner, M., 1985. Etude du oplanton côtière de la baie de Dakar et de son utilisation par les poissons comme source de nourriture. PhD thesis, Université de Bretagne occidentale.

[37] Furnestin, M., 1957. Chaetognathes et zooplancton du secteur atlantique marocain. Rev. Trav.Inst. Pêches marit., 2J, 2J(1-2) :356p.

[38] Touré, D., 1983. Contribution à l'étude de l'upwelling de la baie de gorée (dakarsénégal) et de ses conséquences sur le développement de la biomasse phytoplanclonique. Doc. sci. Centre Rech. Océanogr. Dakar-Thiaroye, 93, 186p.

[39] Lathuilière, C., Echevin, V. and Lévy, M., 2008. Seasonal and intraseasonal surface chlorophyll-a variability along the northwest African coast. Journal of Geophysical Research 113.

[40] Sinclair, M. 1988. Marine Populations: an Essay on Population Regulation and Speciation. University of Washington Press, Seattle. 252 pp