18 July 2017 SC5-Doc10 Annex 3. Presentations to the Task Group
18 July 2017 SC5-Doc10 Instituto de Investigación Pesquera ACOUSTIC DATA OBTAINED FROM A FISHING VESSEL SEARCHING CHILEAN JACK MACKEREL AT THE HIGH SEA OFF SOUTH CENTRAL CHILE DURING YEARS 2009 Y 2010 Nicolás Alegría and Aquiles Sepúlveda
OBJECTIVES 18 July 2017 SC5-Doc10 In 2008, managers of the fishing industry of Central-South Chile decided to adapt a fishing vessel as a research platform with the following purpose: To characterize and assess relative abundance of Chilean Jack Mackerel aggregations offshore. To relate fish density with oceanographic features and food component distribution and relative abundance. A fishing vessel from the trawling fishery of Chile (Biomar III) was equipped with a scientific echosounder (Simrad EK-60) and a 38 kHz transducer, sonar and oceanographic equipment. The vessel was operating during two years (2009 and 2010) searching fish for 170 days in year 2009 and 203 days in 2010. Instituto de Investigación Pesquera - Departamento de Pesquerías – www.inpesca.cl
BBIP BIOMAR III 18 July 2017 SC5-Doc10 Instituto de Investigación Pesquera - Departamento de Pesquerías – www.inpesca.cl
INFORMATION ANALYSIS 18 July 2017 SC5-Doc10 • INTEGRATE AND EXPORT DENSITY (ton/mn 2 ) Instituto de Investigación Pesquera - Departamento de Pesquerías – www.inpesca.cl
RELATIVE ABUNDANCE ESTIMATES 18 July 2017 SC5-Doc10 ( , ) NASC x y � ( , ) i z x y � i ( , ) x y ( ) Ton i � ( , ) x y � � i ( , ) x y ( ) Ton i ( , ) W x y i Mean weight (in metric tons) of the species i by haul of ( , ) W i x y identification at the locality ( x,y ) � Is the average transversal section of acoustic backscattering (in ( , ) x y i m 2 ) of species i : � / 10 � � � TS ( , ) 4 10 x y f j i j j TS= 20 log(LH) – 68,91 (Lillo et al ., 1996) Instituto de Investigación Pesquera - Departamento de Pesquerías – www.inpesca.cl
RESULTS 18 July 2017 SC5-Doc10 SPATIAL DISTRIBUTION JANUARY 2009 FEBRUARY 2009 MARCH 2009 APRIL 2009 JANUARY 2010 FEBRUARY 2010 MARCH 2010 APRIL 2010 Instituto de Investigación Pesquera - Departamento de Pesquerías – www.inpesca.cl
RESULTS 18 July 2017 SC5-Doc10 SPATIAL DISTRIBUTION JULY 2009 AUGUST 2009 MAY 2009 MAY 2010 JUNE 2010 JULY 2010 AUGUST 2010 Instituto de Investigación Pesquera - INPESCA
RESULTS 18 July 2017 SC5-Doc10 SPATIAL DISTRIBUTION NOVEMBER 2009 DECEMBER 2009 SEPTEMBER 2009 DECEMBER 2010 SEPTEMBER 2010 NOVEMBER 2010 Instituto de Investigación Pesquera - Departamento de Pesquerías – www.inpesca.cl
RESULTS 18 July 2017 SC5-Doc10 SPATIAL DISTRIBUTION Zooplankton T. murphii RELATIONSHIP BETWEEN FOOD AVAILABILITY AND PRESENCE OF MACKEREL, YEAR 2009 Instituto de Investigación Pesquera - Departamento de Pesquerías – www.inpesca.cl
RESULTS 18 July 2017 SC5-Doc10 SPATIAL DISTRIBUTION Zooplankton T. murphii RELATIONSHIP BETWEEN FOOD AVAILABILITY AND PRESENCE OF MACKEREL, YEAR 2010 Instituto de Investigación Pesquera - Departamento de Pesquerías – www.inpesca.cl
RESULTS 18 July 2017 SC5-Doc10 O O O x x x y y y g g g e e e n n n , , , S S S B B B E E E 4 4 4 3 3 3 [ [ [ m m m g g g / / / l l l ] ] ] 0 0 0 0 , , 0 0 1 1 1 0 , , 0 0 2 0 2 2 , , 0 0 3 3 3 0 , , 0 0 4 4 0 4 , , 0 0 5 5 0 5 , , 0 0 6 6 0 6 , , 0 0 7 7 0 7 , , 0 0 8 0 8 8 , , 0 0 9 0 9 9 , , 0 0 1 1 1 0 0 0 0 , , 0 0 S S a a l l i i n n i i t t y y [ [ P P S S U U ] ] 3 3 3 3 , , 0 0 3 3 3 3 , , 2 2 3 3 3 3 , , 4 4 3 3 3 3 , , 6 6 3 3 3 3 , , 8 8 3 3 4 4 , , 0 0 3 3 4 4 , , 2 2 3 3 4 4 , , 4 4 3 3 4 4 , , 6 6 3 3 4 4 , , 8 8 3 3 5 5 , , 0 0 0 0 5 5 0 0 1 1 0 0 0 0 Depth [salt water, m] Depth [salt water, m] 1 1 5 5 0 0 2 2 0 0 0 0 2 2 5 5 0 0 3 3 0 0 0 0 3 3 5 5 0 0 4 4 0 0 0 0 2 2 2 2 4 4 4 4 6 6 6 6 8 8 8 8 1 1 1 1 0 0 0 0 1 1 1 1 2 2 2 2 1 1 1 1 4 4 4 4 1 1 1 1 6 6 6 6 1 1 1 1 8 8 8 8 / / Oxygen, SBE 43 [mg/l] Oxygen, SBE 43 [mg/l] 0,0 0,0 1,0 1,0 2,0 2,0 3,0 3,0 4,0 4,0 5,0 5,0 6,0 6,0 7,0 7,0 8,0 8,0 9,0 9,0 10,0 10,0 Salinity [PSU] Salinity [PSU] 33,0 33,0 33,2 33,2 33,4 33,4 33,6 33,6 33,8 33,8 34,0 34,0 34,2 34,2 34,4 34,4 34,6 34,6 34,8 34,8 35,0 35,0 0 0 50 50 100 100 Depth [salt water, m] Depth [salt water, m] 150 150 200 200 250 250 300 300 350 350 400 400 3 3 / / 2 2 4 4 6 6 Oxygen, SBE 43 [mg/l] Oxygen, SBE 43 [mg/l] 8 8 10 10 12 12 14 14 16 16 18 18 0 0 , , 0 0 1 1 , , 0 0 2 2 , , 0 0 3 3 , , 0 0 4 4 , , 0 0 5 5 , , 0 0 6 6 , , 0 0 7 7 , , 0 0 8 8 , , 0 0 9 9 , , 0 0 1 1 0 0 , , 0 0 Salinity [PSU] Salinity [PSU] 3 3 3 3 , , 0 0 3 3 3 3 , , 2 2 3 3 3 3 , , 4 4 3 3 3 3 , , 6 6 3 3 3 3 , , 8 8 3 3 4 4 , , 0 0 3 3 4 4 , , 2 2 3 3 4 4 , , 4 4 3 3 4 4 , , 6 6 3 3 4 4 , , 8 8 3 3 5 5 , , 0 0 0 0 50 50 Depth [salt water, m] Depth [salt water, m] 100 100 150 150 200 200 250 250 300 300 350 350 400 400 O O x x y y g g e e n n , , S S B B E E 4 4 3 3 [ [ m m g g / / l l ] ] 0 0 , , 0 0 1 1 , , 0 0 2 2 , , 0 0 3 3 , , 0 0 4 4 , , 0 0 5 5 , , 0 0 6 6 , , 0 0 7 7 , , 0 0 8 8 , , 0 0 9 9 , , 0 0 1 1 0 0 , , 0 0 S S a a l l i i n n i i t t y y [ [ P P S S U U ] ] 3 3 3 3 , , 0 0 3 3 3 3 , , 2 2 3 3 3 3 , , 4 4 3 3 3 3 , , 6 6 3 3 3 3 , , 8 8 3 3 4 4 , , 0 0 3 3 4 4 , , 2 2 3 3 4 4 , , 4 4 3 3 4 4 , , 6 6 3 3 4 4 , , 8 8 3 3 5 5 , , 0 0 0 0 5 5 0 0 1 1 0 0 0 0 Depth [salt water, m] Depth [salt water, m] 1 1 5 5 0 0 2 2 0 0 0 0 2 2 5 5 0 0 3 3 0 0 0 0 3 3 5 5 0 0 4 4 0 0 0 0 / / Instituto de Investigación Pesquera - Departamento de Pesquerías – www.inpesca.cl
RESULTS 18 July 2017 SC5-Doc10 0,0 0,0 1,0 1,0 2,0 2,0 3,0 3,0 4,0 4,0 5,0 5,0 6,0 6,0 7,0 7,0 8,0 8,0 9,0 9,0 10,0 10,0 Salinity [PSU] Salinity [PSU] 33,0 33,0 33,2 33,2 33,4 33,4 33,6 33,6 33,8 33,8 34,0 34,0 34,2 34,2 34,4 34,4 34,6 34,6 34,8 34,8 35,0 35,0 0 0 50 50 100 100 Depth [salt water, m] Depth [salt water, m] 150 150 200 200 250 250 300 300 350 350 400 400 O O SBE 43 [ SBE 43 [ /l] /l] 400 400 Oxygen, SBE 43 [mg/l] Oxygen, SBE 43 [mg/l] 2 2 4 4 6 6 8 8 10 10 12 12 14 14 16 16 18 18 0,0 0,0 1,0 1,0 2,0 2,0 3,0 3,0 4,0 4,0 5,0 5,0 6,0 6,0 7,0 7,0 8,0 8,0 9,0 9,0 10,0 10,0 Salinity [PSU] Salinity [PSU] 33,0 33,0 33,2 33,2 33,4 33,4 33,6 33,6 33,8 33,8 34,0 34,0 34,2 34,2 34,4 34,4 34,6 34,6 34,8 34,8 35,0 35,0 0 0 50 50 100 100 Depth [salt water, m] Depth [salt water, m] 150 150 200 200 250 250 300 300 350 350 400 400 2 2 4 4 6 6 8 8 10 10 12 12 14 14 16 16 18 18 Oxygen, SBE 43 [mg/l] Oxygen, SBE 43 [mg/l] 0,0 0,0 1,0 1,0 2,0 2,0 3,0 3,0 4,0 4,0 5,0 5,0 6,0 6,0 7,0 7,0 8,0 8,0 9,0 9,0 10,0 10,0 Salinity [PSU] Salinity [PSU] 33,0 33,0 33,2 33,2 33,4 33,4 33,6 33,6 33,8 33,8 34,0 34,0 34,2 34,2 34,4 34,4 34,6 34,6 34,8 34,8 35,0 35,0 0 0 50 50 100 100 Depth [salt water, m] Depth [salt water, m] 150 150 200 200 250 250 300 300 350 350 400 400 2 2 4 4 6 6 8 8 10 10 12 12 14 14 16 16 18 18 Temperature [ITS-90, deg C] Temperature [ITS-90, deg C] 0,0 0,0 0,5 0,5 1,0 1,0 1,5 1,5 2,0 2,0 2,5 2,5 3,0 3,0 Fluorescence, Seapoint Fluorescence, Seapoint Instituto de Investigación Pesquera - Departamento de Pesquerías – www.inpesca.cl
RESULTS 18 July 2017 SC5-Doc10 Instituto de Investigación Pesquera - Departamento de Pesquerías – www.inpesca.cl
RESULTS 18 July 2017 SC5-Doc10 2009 2010 Instituto de Investigación Pesquera - Departamento de Pesquerías – www.inpesca.cl
RESULTS: OCEANOGRAPHIC FEATURES AND FISH 18 July 2017 SC5-Doc10 MAY 2009 MAY 2010 Instituto de Investigación Pesquera - Departamento de Pesquerías – www.inpesca.cl
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