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Jack Mackerel Fisheries: Stock Assessment Workshop in Peruvian Sea

Explore assessment methods and research on Jack Mackerel fisheries in the South Pacific Ocean, focusing on Peru's coast. Learn about key resources, behaviors, and population dynamics. Workshop held in Lima in May 2009.

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Jack Mackerel Fisheries: Stock Assessment Workshop in Peruvian Sea

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  1. JACK MACKEREL FISHERIES (Trachurus murphyi) ON PERUVIAN SEA “Jack mackerel stock assessment methods workshop” SPFRMO, Lima 04 – 08 May 2009

  2. ECUADOR PACIFICO SUD ORIENTAL PESQUERIA PERUANA Pesquería Perú Pesquería Norte-Chile Pesquería Coquimbo Pesquería Internacional Pesquería Sur-Chile IMARPE, 2006 Distribución de la Especie Localización de las pesquerías Limite de las 200 millas Distribución y localización de las principales áreas de pesca de jurel en el Pacifico Sur (Serra, 1991) Introduction: • Jack mackerel is widespread in the • South Pacific Ocean • In Peru, jack mackerel is found along of all the coast • and it has been recorded to 200 – 350 nm. • According to landings of IMARPE (2006), jack mackerel • represented the third most important resource in the fishery

  3. Daily sampling covers all the landing points, and 10% of the active fishing fleet, at least.

  4. Pelagic Resources Acoustic Direct Methods Eggs Production Anchovy & Sardine Swept Area Hake & Demersal Anchovy, & Jack Mackerel VPA Indirect Methods Relative Abundance Index (CPUE) Anchovy Jack mackerel FISHERIES RESOURCES ASSESSMENT Behavior of anchovy schools Biological Processes Research Anchovy recruitment Abundance labels Invertebrates Marine Coastal Natural Areas Assessment Natural areas characteristics

  5. BIOMASS ASSESSMENTS* SCIENTIFIC CRUISSES: Hydroacoustics (2) COOPERATION OF INDUSTRIAL FLEET: EUREKA Operations POPULATION DYNAMICS: VPA (Mathematical method) * On yearly base

  6. JACK MACKEREL ANNUAL LANDINGS IN PERU FROM 1960 TO 2008

  7. MAIN LANDING PORTS IN PERU 2002 - 2008 1985-2001

  8. FISHING AREAS AND SIZE STRUCTURE OF JUREL (January – Febrary 2009)

  9. SEASONALITY OF JUREL LANDINGS IN PERU (1986 - 2008)

  10. Scenario1 Scenario 2 2001 1996 1997 2000 2002 2003 2004 2005 2006 2007 1998 1999 v v 250 20 70 60 D.C (nm): 150 160 20 10 130 10 200 20 70 10 170 20 170 20 140 20 250 20 60 10 Changes in the distribution of jack mckerel Purse seine fleet – fishing sets “"disappeared" of the north zone Adults Juveniles Acoustic survey

  11. DATA INVENTORY FOR JACK MACKEREL OFF PERU - STOCK ASSEESSMENT

  12. JACK MACKEREL FISHERIES (Trachurus murphyi) ON PERUVIAN SEA “Jack mackerel stock assessment methods workshop” SPFRMO, Lima 04 – 08 May 2009

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