Navarro, M.R. (María Rosario)

Silva, Andreia

Villamor, B. (Begoña)

English

Navarro, María Rosario

Villamor, Begoña

Digital.CSIC

Review information on age estimation, otolith exchanges and validation techniques  of Chub mackerel

Silva, A. (Andreia)

Repositorio Institucional Digital del IEO

Workshop on Age Reading of Chub Mackerel (Scomber colias) [WKARCM]Lisbon (Portugal), 2 – 6 November 2015Review information on age estimation, otolith exchanges and validation techniques  of Chub mackerel (TOR a)WKARCM, Lisbon 2015Maria Rosario NavarroAndreia SilvaBegoña VillamorInstituto Español de Oceanografía (IEO)Centro Oceanográfico de SantanderBACKGROUND OF THE AGE DETERMINATION OF CHUB MACKEREL (S. colias) IN EUROPEAN WATERS• Chub mackerel is not an assessed species• There is not yet an international age reading protocol, nore any consensual age reading criteria• One expert reader (IPMA, Portugal) for many years (now retired)• Occasional readers in some Mediterranean countries• November 2011: training of two new readers (Spain and Portugal) by expert reader in Lisbon• Since 2011 appear new permanent readers (Spain, Portugal, Italy, Greece, ....)• PGCCDBS 2011 recommends the realization of first otolith exchange of chub mackerel between Portugal and Spain• PGCCDBS 2014 recommends the realization of first Workshop on Age Reading of Chub Mackerel for all European countriesWKARCM, Lisbon 2015OTOLITH EXCHANGES OF CHUB MACKEREL• 2012-2013: First S. colias otolith exchange.• Five readers from Portugal (2) and Spain (3)• 244 otoliths (ICES areas VIIIc and IXa and Western Mediterranean)• March-June 2015: Small exchange of S. colias otolith images before this Workshop.• 14 readers from Portugal (6), Spain (6) and Italy(2)• 125 otolith images (ICES areas VIIIc and IXa and Western Mediterranean)WKARCM, Lisbon 2015VALIDATION STUDIES OF CHUB MACKEREL•Two indirect methods:•Marginal Increment Analysis / Edge Zone Analysis•Qualitative: Nature of the Edge (Opaque/Translucent) •Quantitative: RMD (Relative Marginal Distance) = AMD/Di,i-1AMD (Absolute Marginal Distance) =  Distance between the end of last hyaline annulus and the edgeDi, i-1 = Distance between the last two hyaline annuli•Length Frequency AnalysisWKARCM, Lisbon 2015Marginal Increment Analysis (Quantitative) / Edge Zone Analysis (Qualitative), (ICES CRR, 2015)WKARCM, Lisbon 2015Area Method Time series Age/size Range ReferencesBay of BiscayQuantitative / Qualitative2011All ages together /      19-42cmNavarro et al., 2014Portuguese Coast 1981-1982 All ages together Martins et al., 1983Azores Islands 1996-2002 All ages together /       9.6-53.5cmCarvalho et al., 2002Madeira IslandsQuantitative / Qualitative2002-2004All ages together /         19-41cmVasconcelos, 2006Canary Islands March 1988-July 1990All ages together /         19.2-41.1cmLorenzo et al., 1995Gulf of Cadiz 1977-1978 All ages together Rodriguez-Rhoda, 1982Gulf of Cadiz /                     SW Mediterranean (Alboran Sea)Oct. 2003-Sep. 2004All ages together /          17-40cmVelasco et al., 2011NW Mediterranean (Catalan Coast)April - July 1992 and Dec. 1997All ages together Perrota et al., 2005Eastern Mediterranean (Hellenic Seas)Quantitative / QualitativeJan.-Dec. 1996 Ages 1-3 Kiparissis et al., 2000QualitativeQualitativeOpaque edge formation of  S. colias otoliths in different areas of NE Atlantic ocean and Mediterranean Sea, from the literatureWKARCM, Lisbon 2015Area Opaque edge ReferencesICES, VIIIc. Bay of Biscay June - November Navarro et al., 2014ICES, IXa. Portugal waters May - August Martins et al., 1983ICES, IXaS. Bay of Cadiz May - August Rodriguez-Roda, 1982ICES, IXaS. Bay of Cadiz March/April - September/October Velasco et al., 2011ICES, X. Azores Islands May - September/October Carvalho et al., 2002Madeira islands May - July (max.) Vasconcelos, J., 2006Canary islands March - September Lorenzo et al., 1996W Mediterranean Sea. Alboran Sea March/April - September/October Velasco et al., 2011W Mediterranean Sea. Catalonya waters Spring - Summer (max. April-July) Perrota et al., 2005E Mediterranean Sea.    Hellenic Sea March - September (max. April) Kipparissis et al., 2000NE Atlantic OceanMediterranean SeaSummer Tuggac, M., 1957E Mediterranean Sea. Turkey watersLength Frequency AnalysisOther methods: Back-calculation (no validation)WKARCM, Lisbon 2015Area Time series Age/size Range ReferencesMadeira Islands 2002-2004Ages 1-4 /                    20-40cmVasconcelos, 2006Canary IslandsMarch 1988-July 1990Ages 1-7 /                        19.2-41.1cmLorenzo et al., 1995Gulf of Cadiz 1977-1978 Ages 0-2 Rodriguez-Rhoda, 1982Area Time series Age/size Range ReferencesMadeira Islands 2002-2004 Ages 0-5 / 13-41cm Vasconcelos, 2006References:Carvalho, N.; Perrota, N.G.; Isidro, E.J. 2002. Age, growth and maturity in the chub mackerel (Scomber japonicus Houttuyn, 1782) from the Azores Arquipélago. Life and Marine Sciences 19a, 93-99.ICES 2011. Report of the Planning Group on Commercial Catches, Discards and Biological Sampling (ICES PGCCDBS). ICES CM 2011/ACOM:40.ICES 2014. Report of the Planning Group on Commercial Catches, Discards and Biological Sampling (ICES PGCCDBS). ICES CM 2014/ACOM:34.Kiparissis, S.; Tserpesand, G.; Tsimenidi, N. 2000. Aspects on the demography of Chub Mackerel (Scomber japonicus Houttuyn, 1782) in the Hellenic Seas. Belgian Journal of Zoology 130: 3-7.Lorenzo, J.M:; Pajuelo, J.G.; Ramos, A.G. 1995. Growth of the chub mackerel Scomber japonicus (Pisces: Scombridae) off the Canary Islands. Scientia Marina 59 (3-4), 287-291.Martins, M.M.; Jorge, I.M.; Gordo, L.S. 1983. On the maturity, morphological characteristics and growth of Scomber japonicus Houttuyn (1782) of west continental coast of Portugal. ICES Document CM 1983/H: 39. 9pp.Navarro, M.R.; Villamor, B.; Landa, J.; Hernández, C. 2014. First attempt to validate the age estimation of chub mackerel (Scomber colias) in the Bay of Biscay using otoliths. 5th International Otolith Symposium, Palma de Mallorca (Spain), 20-24 October 2014.Perrota, R.G.; Carvalho, N.; Isidro, E. 2005. Comparative study on growth of chub mackerel (Scomber japonicus Houttuyn, 1782) from three different regions: NW Mediterranean, NE and SW Atlantic. Revista de Investigación y Desarrollo Pesquero 17: 67-79.Rodriguez-Rhoda, J. 1982. Biologia de la caballa (o estornino), Scomber (Pneumatoforus) japonicus Houttuyn (1782) del Golfo de Cádiz. Investigaciones Pesqueras de Cádiz, 46: 143-149.Vasconcelos, J. 2006. ContribuÇao para o conhoecimento da biologia da cavala, Scomber japonicus Houttuyn, 1782 do Arquipelago da Madeira. Phd Tesis, Universidad da Madeira.Velasco, E.M.; Del Arbol, J.; Baro, J.; Sobrino, I. 2011. Age and growth of the Spanish chub mackerel Scomber colias off southern Spain: a comparison between samples from the NE Atlantic and the SW Mediterranean. Revista de Biología Marina y Oceanografía 46, Nº1: 27-34.Villamor, B. and Carbonara, P. 2015. Small and Medium Pelagic Species. In  ICES Cooperative Research Report (CRR) on fish ageing. Chapter 5. Lotte Worsøe Clausen, Francesca Vitale and Grainne Ni Chonchuir (eds.). September 2015, submitted.WKARCM, Lisbon 2015

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Review information on age estimation, otolith exchanges and validation techniques of Chub mackerel

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