Garrido, S. (Susana)

Ramos, F. (Fernando)

Rincón-Hidalgo, M. (Margarita)

Tornero, J. (Jorge)

English

Ramos, Fernando

Tornero, Jorge

Rincón-Hidalgo, Margarita

Garrido, Susana

Digital.CSIC

Anchovy in Division 9a. Southern Component. Input data. WGHANSA-1 2022.

Repositorio Institucional Digital del IEO

 Anchovy in Division 9a. Southern Component.  Input data.  WGHANSA-1 2022. F. Ramos(1), J. Tornero(1), M.M. Rincón(1) S. Garrido(2)   ICES WGHANSA-1 2022, 23–27 May 2022. On-line meeting. (1) (2) Gaps of information in 2021  Gaps of information in 2021.  No ECOCADIZ 2021-07 survey. See Surveys’ slides.  No ECOCADIZ 2022-07 survey. See Surveys’ slides. The Anchovy fishery in the Southern component in 2021   Southern component (SC): landings, discards & catches in 2021.    • Southern Component (9a S): 7562 t (7317 t in 2020). 3% increase. 42% of catches in the Division. Well above the historical mean (5029 t). 2020-2021 with high catches.  • PT:     109 t (155 t in 2020), 1.4% SC. • ES: 7452 t (7163 t in 2020), 98.6% SC: • Official:        7373 t, 97.5% SC. • Discards:      80 t. (14 t PS; 66 t OTB), 1.1% SC.   • Purse-seiners: 99.1% of total catches in the Southern Component. 020004000600080001000012000140001600018000200001989 1991 1993 1995 1997 1999 2001 2003 2005 2007 2009 2011 2013 2015 2017 2019 2021Catches (t)YearCatches (t) Division 9aSub-divisions 9a North to C-SouthSub-division 9a South• Division 9a: 17 837 t, a 38% increase in relation to 2020 (12 956 t). Historical maximum. Consecutive historical maxima in the recent historical series (since 2016).  • Western Component: 10 276 t (5639 t in 2020). 82% increase. Historical maximum. 58% of catches in the Division. Well above the historical mean (2097 t). 2016-2021 recent period of high catches. • Strong decrease in effort and landings in 2017.   • 2018-2021: relatively stable trend in effort (some increase in 2020-2021) coupled with steeply increasing catches resulted in a increasing trend in lpue (from less than 1 t to at around 1.2-1.9 t/fishing day).  • But, warning !!:  – LPUE= total landings/total positive fishing trips. –  Is LPUE probably overestimated?  The fleet may invest more searching time than expected. Null trips not taken into account. Southern component (SC): Spanish P-S fishery. Anchovy standardised effort and CPUE. Southern component (SC): Last Catch Advice. Agreed TAC. Last catch advice (July 2021-June 2022): Total stock: 15 005 t.  Western comp.: 7824 t; Southern comp.: 7 181 t.  Agreed TAC (July 2021-June 2022): Total stock: 15 005 t. PT: 7829 t. Final quota: 8571 t . ES: 7176 t. Final quota: 8023 t (9a N: 113 t; 9a S: 7910 t).  Provisional estimated catches (July 2021-June 2022):  Western comp.:  1037 t. Southern comp.: 2465 t.   Cy-1: Catch advice for the previous management period, i.e. the period July 2021 to June 2022, for a management year lasting from July in the year y to June in the year y+1.  Cy-1= 7 181 t     Iy and Ii are Gadget outputs (Relative biomass estimates) Southern component (SC): Starting catch for Cy-1 for the advice this year (July 2022).  Southern component (SC): Portuguese fishery. CANUM, LFD, Mean size & Weight in catches. • Total catches in 2021:  9a S (PT):  109 t: • PS=   107 t. • MIS_MIS= 2 t. • OTB_DEF= 0.1 t. • Mainly in Q3. • No discards. Landings=Catches. • Neither LFD nor age structure available for 2021 catches. Raised to the adjacent 9a S_ES LFDs & ALKs. • Total catches in 2021: 7452 t (7373 t L + 80 t D) – 618 million fish (3% increase in numbers with respect to 2020 = 599 millions). 26% decrease in age 0 anchovies. 19% increase in age group 1. 2% increase in age 2. Age 1 dominated the catches (72%). No age 3 fish. Incidental occurrence of age group 3 in the catch time-series.  – Total mean length and weight: 11.9 cm and 12.1 g. Similar values than in precedent years. Southern component (SC): Spanish fishery. CANUM, LFD, Mean size & Weight in catches. 0204060801003 5 7 9 11 13 15 17 19 21Numbers (million)Size class (cm)9a S (ES)2021LANDINGS ALL FLEETS DISCARDS ALL FLEETSCatch: 7452 tMean size: 11.9 cmSize range; modes: -Catch:         5.5-17.5 cm; 10.5 cm (11.5 cm, 12.5 cm). - Landings:  8.5-16.5 cm;  10.5 cm (12.5cm). - Discards:   5.5-17.5 cm; 10.5 cm (8.0 cm). 020040060080010001200140016001995 1997 1999 2001 2003 2005 2007 2009 2011 2013 2015 2017 2019 2021Number (Millions)YearAge structure in catches 9a S (ES) Age 3 Age 2Age 1Age 00,02,04,06,08,010,012,014,016,018,01988 1991 1994 1997 2000 2003 2006 2009 2012 2015 2018 2021Mean length (cm)YearAnchovy in 9a S (ES)Mean length at age in catchesAge 0Age 1Age 2Age 3Total0,0000,0050,0100,0150,0200,0250,0300,0350,0401988 1991 1994 1997 2000 2003 2006 2009 2012 2015 2018 2021Mean weight (kg)YearAnchovy in 9a S (ES)Mean weight at age in catchesAge 0Age 1Age 2Age 3TotalSurveys’ direct information  Fishery-independent information: Surveys in 2021 (postWG)-2022 Sub-division Summer 2021 Autumn 2021 Spring 2022 9a N IBERAS 0921  (PT & ES) PELACUS 0322 (ES) 9a CN PELAGO 22 (PT) 9a CS 9a S ECOCADIZ 2021-07 (ES) ECOCADIZ-RECLUTAS  2021-10 (ES) (1) Time-series mean value Year 2005 2008 2011 2014 2017 2020 Eggs  P0 (eggs/m2/day)   138 266 276 314 146 523 Z (day-1) (CV)    -0.039  -1,43  -0.29  -0.33  -0,16  -1.11 Ptotal (eggs/day) (x1012)  1,13 2,11 1,87 1,95 0,74 5,26 Surveyed area (km2) 11982 13029 13107 14595 15556 16223 Positive area (km2)  6139 6863 6770 6214 5080 10058 Adults  Female Weight (g)  25.2 / 16.7 23,7 15,2 18,2 16,2 16,6 Batch Fecundity 13820/ 11160 13778 7486 7502 7507 8212 Sex Ratio  0.53 / 0.54 0,528 0,531 0,54 0,53 0,54 Spawning Fraction  0.26 / 0.21 0,218 0,276 0.276  0,243 0,241 (1) SSB  SSB (t) 14673 31527 32757 31569 12422 81466 Fishery-independent information: DEPM. Summer survey. BOCADEVA series.  9a South. Trends (I). Fishery-independent information: DEPM. Summer survey. BOCADEVA series.  9a South. Trends (II). 2005 2008 2011 2014 2017 2020 A+ 6139 6863 6770 6214 5080 10058 P0 (eggs/m2/day)   137,65 266 276 314 146 523 0 100 200 300 400 500 600 0 2000 4000 6000 8000 10000 12000 Km2 Positive area & P0 (eggs/day) (x1012) 2005 2008 2011 2014 2017 2020 Ptotal (eggs/day) (x1012)  1,13 2,11 1,87 1,95 0,74 5,26 0,0 1,0 2,0 3,0 4,0 5,0 6,0 Ptot (eggs/day) 2005 2008 2011 2014 2017 2020 ECOCADIZ       29219 12229 44877 PELAGO 15103 39667 27050 30864 13797 49787 BCDV 14673 31527 32757 31569 12392 81466 0 10000 20000 30000 40000 50000 60000 70000 80000 90000 SSB Biomass  (t) 1463731527 32757 31569123928146602500050000750001000001250001500001995 1997 1999 2001 2003 2005 2007 2009 2011 2013 2015 2017 2019 2021Biomass (t)YearDEPM-based SSB estimates9a SouthFishery-independent information: Acoustic surveys in 2021 (post-WG). Summer survey. ECOCADIZ 2021-07:  31/07-13/08/2021. 9a South.    ECOCADIZ 2021-07 survey: Gulf of Cadiz pelagic ecosystem survey (20-200 m depth).  RV Miguel Oliver (SGP). Summer.  Survey planned to be conducted from 31/07 – 13/08/2021.  Malfunctioning of the echo-sounder (RV’s electric problems affecting to the echo-sounder?) during the previous acoustic survey (MEDIAS) caused the interruption of that survey.  Failed attempts of solving such problems also led to the definitive suspension of the ECOCADIZ survey.   Replacement of the R/V Miguel Oliver’s EK60 by the EK80 this winter, including the corresponding further checks (calibration, self-noises, acoustic recording, etc.).   Impact of this gap in the stock assessment (Gadget model) of the ane.27.9a southern component needs to be explored. ECOCADIZ is not used in the sardine stock assessment (pil.27.8c9a).  No survey, No data, No estimates. Fishery-independent information: Acoustic surveys in 2022 (post-WG). Summer survey. ECOCADIZ 2022-07:  July-August 2022. 9a South.    ECOCADIZ 2022-07 survey: No survey this summer.  Priority was given to increasing survey days of MEDITS – ES (bottom-trawl) and MEDIAS –ES (acoustic-trawl) surveys for surveying Balearic Islands and a new survey in Spanish Western Mediterranean waters.  Provisional interruption?  Impact of this (new) gap in the stock assessment (Gadget model) of the ane.27.9a southern component needs to be explored.  Fishery-independent information: Acoustic surveys in 2021 (post-WG).  Autumn surveys. ECOCADIZ-RECLUTAS 2021-10: 25/10/-06/11/2021. 9a South. (I) ECOCADIZ-RECLUTAS 2021-10 survey: acoustic assessment of the abundance of anchovy and sardine juveniles in their main recruitment areas off the Gulf of Cadiz (20 -200 m depth), (surveys in 2012, 2014-2021). RV Ramón Margalef (IEO). Autumn.  21 transects. 18 valid hauls. No CUFES. 168 CTD-LADCP st. TSG-F & VMADCP. No Top predator census.  Decrease in NASC allocated to the “pelagic fish species assemblage” for the total area and noticeably in Spanish waters.  Sardine (55%), anchovy (16%) and chub mackerel (9%) the main contributors to the total NASC. 0500001000001500002000002500002006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022NASC (m2nm-2)YearTOTAL_NASCPT_NASCES_NASCFishery-independent information: Acoustic surveys in 2021 (post-WG).  Autumn surveys. ECOCADIZ-RECLUTAS 2021-10: 25/10/-06/11/2021. 9a South. (I) Anchovy showed a high frequency of occurrence (78%) in the 18 valid hauls.   Widely distributed, although avoiding the easternmost waters.   Hotspots:  -Alfanzina-West Cape Santa Maria. - Isla Cristina-Bay of Cadiz.  Usual pattern: the smallest anchovies in the surroundings of the Guadalquivir river mouth and adjacent coastal waters. Larger/older anchovies in the westernmost waters. Fishery-independent information: Acoustic surveys in 2021 (post-WG).  Autumn surveys. ECOCADIZ-RECLUTAS 2021-10: 25/10/-06/11/2021. 9a South. (II). 4 modes (10.0, 14.0, 8.0 and 3.0 cm). Ages 0, 1 and 2. Age-0 anchovies in the surveyed area were estimated at 1629 million fish and 12 063 t, respectively, i.e. 83% and 69% of the total estimated anchovy abundance and biomass.   A total of 17 512 t and 1973 million fish were estimated for this species for the whole surveyed area. (PT: 4143 t; 211 million. ES: 13 370 t; 1763 million).   (51% and 38% decreases in B and N in relation to ECOCADIZ-RECLUTAS 2020-10: 36 070 t; 3197million). 17 512 t; 1973 million 0501001502002503003502 3,5 5 6,5 8 9,5 11 12,5 14 15,5 17 18,5 20Number of fish (million)Size class (cm)9a S (TOTAL ABUNDANCE)1973 million; 17 512 t050010001500200025002 3,5 5 6,5 8 9,5 11 12,5 14 15,5 17 18,5 20Fish biomass (t)Size class (cm)9a S (TOTAL BIOMASS)04008001200160020000 1 2 3Number of fish (millions)Age group (years)9a S (TOTAL ABUNDANCE)10,68±1,1013,57±1,4015,67±0,852.0-4.5 cm Fishery-independent information: Acoustic surveys in 2021 (post-WG).  Autumn surveys. ECOCADIZ-RECLUTAS 2021-10: 25/10/-06/11/2021. 9a South. (III). No estimates from ECOCADIZ 07-2021 (no survey). The 2021 estimates of age-0 fish experienced a similar decreasing trend than the one showed by the whole population in relation to the historical peak recorded in 2019 and in the last year, but with values still close to the time-series average.   y = -0,1535x + 1764R² = 0,094405001000150020002500300035000 1000 2000 3000 4000 5000 6000ECOCADIZ_N Age-1(y+1) (million)ECOCADIZ-REC_N Age-0(y) (million)ECOCADIZ-RECLUTAS vs ECOCADIZ01000200030004000500060002005 2007 2009 2011 2013 2015 2017 2019 2021Number of fish (millions)YearAnchovy abundanceECOCADIZ-RECLUTAS SurveysTOTAL Age 0y = 1,0943x + 192,12R² = 0,3530200040006000800010000120000 1000 2000 3000 4000 5000 6000PELAGO_N Age-1(y+1) (million)ECOCADIZ-REC_N Age-0(y) (million)ECOCADIZ-RECLUTAS vs PELAGO0200040006000800010000120002011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022Number of fish (million)YearAge 0(y) vs Age 1(y+1) anchovies in 9a SECOCADIZ-RECLUTAS Age 0 (y) PELAGO Age 1 (y+1) ECOCADIZ Age 1 (y+1)Fishery-independent information: Acoustic surveys in 2022. Spring surveys. PELAGO 22:  01 – 09 & 16 – 30/03/2022. 9a South. (I). PELAGO 22 survey: Pelagic ecosystem survey of the Portuguese and  Gulf of Cadiz shelf waters (30-150/200 m depth). Spring. Two vessels (Miguel Oliver in 9a S, Vizconde de Eza in 9a CN-CS-west Algarve).  Anchovy population in 9a S scattered distributed in 2 areas restricted to the outer shelf off West Cape Sta. Maria in the Algarve and between El Rompido and Bay of Cádiz in Spanish waters. Very low NASC values . Fishery-independent information: Acoustic surveys in 2022. Spring surveys. PELAGO 22: 01 – 09 & 16 – 30/03/2022. 9a South. (II). A total of 8 972 t and 849 million fish were estimated for this species for the Sub-division 9a S (77% and 61% of the population and biomass in Spanish waters, respectively).   The estimates represent 36% and 43% decreases in B and N, respectively, in relation to the already decreased 2021 estimates (14 065 t; 1494 million).   Mode at 10.0 cm. Age-1, Age-2 and Age-3 fish. Age-1 olds the dominant age group. 02000400060008000100000 1 2 3 40100000200000300000400000500000600000700000800000Biomass(mt)Age groupNumbers (10^3)9a S No Fish (thousands)Biomass (mt)10,85±1,0714,37±1,0916,05±0,60020040060080010005 6,5 8 9,5 11 12,5 14 15,5 17 18,5 20 21,504080120160200Biomass(mt)Length group (0.5 cm)Numbers (10^3)9a S No Fish (thousands)Biomass (mt)  • 2010: strong drop.  • 2011: No anchovy detected (but DEPM estimated later on in summer 33 kt  for the South).  • 2012: No survey. • 2014-2016: increasing trend with historical peak in 2016. • 2017: Strong decrease, below the historical mean. • 2018-2020: new increasing trend.  • 2020 is the second highest record in the time-series....but... • Strong (-74% in B) decrease in 2021. • 2022: new (-36% in B) decrease.  Trends in PELAGO acoustic estimates (9a S) 0256117060 044904607466137590 05044509215601208432801789107353501000200030004000500060001997 1999 2001 2003 2005 2007 2009 2011 2013 2015 2017 2019 2021 2023Biomass (t)Year9a S (PT)PELAGO247632235219629245651404119592334132950120986739507656284083094465345125891914529876479981395854380100002000030000400005000060000700001997 1999 2001 2003 2005 2007 2009 2011 2013 2015 2017 2019 2021 2023Biomass (t)Year9a S (ES)PELAGO24763 24913213352456514041240823802034162247457395012700289173310065345137972347329876497871406589720100002000030000400005000060000700001997 1999 2001 2003 2005 2007 2009 2011 2013 2015 2017 2019 2021 2023Biomass (t)Year9a S  (TOTAL)PELAGO• Gaps in 2005, 2008 and 2011 (when DEPM surveys), in 2012 and 2021 (no standard survey). • Partial estimate in 2010  (only Spanish part):  12 339 t.  • Similar trends than PELAGO but with a relatively different magnitude. • Historical record in 2019. • -22% decrease in 2020, but still well above the time-series average (26.3 kt). • Situation in 2021 (and 2022) is unknown (no survey). Trends in ECOCADIZ acoustic estimates 2474647711639107513154440213752412666422515617773020004000600080001000012000140001996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022Biomass (t)Year9a S (PT)ECOCADIZ157033004317243 20506123397172247791916828943956330683561393711401000020000300004000050000600001996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022Biomass (t)Year9a S (ES)ECOCADIZ18177365212888221580123398487292192130534184122293490857700448870100002000030000400005000060000700001996 1998 2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020 2022Biomass (t)Year9a S (TOTAL)ECOCADIZ010000002000000300000040000005000000600000070000001999 2001 2003 2005 2007 2009 2011 2013 2015 2017 2019 2021Number (thousands)YearPortuguese Spring Acoustic SurveysAnchovy in Sub-division 9.a SouthAge 4Age 3Age 2Age 1Population Age structure in 9a South   • Ages 1-4.  • Failed recruitment in 2016. • Progressively good recruitments since 2017, especially in 2019. • Failed recruitment in 2020-2021. • Strong 2015 and 2018-2019 year classes.  • Ages 0-4. Occurrence of Age 0 anchovies in 2010, and 2013-2021 due to the later dates of the survey (late July-early August). • Failed recruitment in 2016 also evidenced. • Relatively good recruitment in 2018 is confirmed. • Strong 2018 year class. Age structure estimated applying Spanish ALKs until 2012  02000000400000060000008000000100000001999 2001 2003 2005 2007 2009 2011 2013 2015 2017 2019 2021Number (thousands)YearSpanish Summer Acoustic SurveysAnchovy in Sub-division 9a SouthAge 4Age 3Age 2Age 1Age 0

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Anchovy in Division 9a. Southern Component. Input data. WGHANSA-1 2022.

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