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JACK MACKEREL FISHERIES (Trachurus murphyi)

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Presentation on theme: "JACK MACKEREL FISHERIES (Trachurus murphyi)"— Presentation transcript:

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

2 Introduction: Jack mackerel is widespread in the South Pacific Ocean
ECUADOR PESQUERIA PERUANA PACIFICO SUD ORIENTAL Distribución de la Especie Localización de las pesquerías Pesquería Perú Norte-Chile Coquimbo Sur-Chile Internacional Limite de las 200 millas Distribución y localización de las principales áreas de pesca de jurel en el Pacifico Sur (Serra, 1991) 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 IMARPE, 2006

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

4 FISHERIES RESOURCES ASSESSMENT Behavior of anchovy schools
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* * On yearly base 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

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

9 SEASONALITY OF JUREL LANDINGS IN PERU
( )

10 “"disappeared" of the north zone
Changes in the distribution of jack mckerel Purse seine fleet – fishing sets Scenario1 Scenario 2 D.C (nm): 140 20 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 v 170 60 10 70 160 250 200 130 150 “"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 12

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