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S. Sandwich I 1975/76, 1980/81 Germany Catch location of Ps. Balleny Russia 2004/05 Kerguelen 2003/04 Australia Age and growth of the Antarctic fish Pseudochaenichthys georgianus based on the otolith morphometry Ryszard Traczyk Shag Rock S.Georgia I. S.Sandwich I. S. Orkney I. Elephan I. K.George I. Deceptio n Palmer A. Ballen y Kerguelen I.

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  • 1. S. Sandwich I1975/76,1980/81GermanyKerguelen2003/04AustraliaKerguelen I.Russia2004/05S.Sandwich I.Age and growthof the Antarctic fishS.Georgia I.S. Orkney I.Elephan I.Pseudochaenichthys georgianusbased on the otolith morphometryRyszard TraczykShag RockK.George I.DeceptionPalmer A.BallenyCatch locationof Ps. georgianus Balleny

2. Pseudochaenichthys georgianus NORMAN, 1939 (Channichthyidae)Fish, spawning in February, March,and Aprilspawning hatching catchFeb Mar Apr May Jun Jul Aug Sep Oct Nov Dec JanII III IV V VI VII VIII IX X XI XII I 3. Pseudochaenichthys georgianus NORMAN, 1939 (Channichthyidae)Larvaes hatch inJulyspawning hatching catchFeb Mar Apr May Jun Jul Aug Sep Oct Nov Dec JanII III IV V VI VII VIII IX X XI XII I 4. Pseudochaenichthys georgianus NORMAN, 1939 (Channichthyidae)Postlarvaes found inJanuary or in Decemberhave half a yearspawning hatching catchFeb Mar Apr May Jun Jul Aug Sep Oct Nov Dec JanII III IV V VI VII VIII IX X XI XII I 5. Hatching larvae have otolith with 0.1 mm of radius and 15 mm of TL0.09 mm R1spawning hatching catch spawning hatching catchFeb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec JanII III IV V VI VII VIII IX X XI XII I II III IV V VI VII VIII IX X XI XII I5SP 1R215 mm TL 6. It is otolith of hatching larvae with ~0.1 mm R1spawning hatching catch spawning hatching catchFeb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec JanII III IV V VI VII VIII IX X XI XII I II III IV V VI VII VIII IX X XI XII I6SP 1R2 7. 7Larval Nucleus otolith ofhatching larvae of Ps. georgianus. 8. postlarvaes have 7 cm of TL, their otolith have 1 mm of radius1 mm R2spawning hatching catch spawning hatching catchFeb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec JanII III IV V VI VII VIII IX X XI XII I II III IV V VI VII VIII IX X XI XII I8SP 1R27.2 cm TL 9. 9SP 1R2 SP 1is mark of postlarvaes otolith 10. 10 11. 1.97 mm R3Next year we can find in Decemberspawning hatching catch spawning hatching catchFeb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec JanII III IV V VI VII VIII IX X XI XII I II III IV V VI VII VIII IX X XI XII I11SP 1R221 cm TLXII XII 12. fish with 21cm of TL, their age is 1.6 of year, their otolithhave radius of 1.97 mm.1.97 mm R3spawning hatching catch spawning hatching catchFeb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec JanII III IV V VI VII VIII IX X XI XII I II III IV V VI VII VIII IX X XI XII I12SP 1R221 cm TLXII XII 13. 13SP 1R2 14. SEM2 nm platinum + palladium1 mm~ 1 mm Second Primordiumin otolith Ps. georgianus 15. 15TL, cm 16. 16TL, cm46 cm TL 17. 17TL, cm 18. 18TL, cm 19. 19TL, cm 20. 20TL, cm 21. 21Assumption: We can estimate the age by reading daily incrementsshow up in the otolith slices, as concentric rings.accurate forfish up to 6 yr oldBROTHERS, E. B., C. P. MATHEWS, R. LASKER, 1976: DAILY GROWTH INCREMENTS IN OTOLITHS FROM LARVAL ANDADULT FISHES. NY, FISHERY BULLETIN: VOL. 74, NO. 1. 22. 22medialsectionCuttingsotolith inslices 0.02mm thickotolith slices after polishingthe surfaces show up dailyincrements asconcentricrings. 23. Justification: It was proof that the smallest in microincrleamrvenates pofa rtotoliths are daily incrementsNocturnal fish: Jones, C.D., K.-H. Kock, E. Balguerias. Changes in biomass of eight species of finfish around the SouthOrkney Islands (subarea 48.2) from three bottom trawl surveys. Hobart : CCAMLR Science, 2000. pp. 53-74. Vol. 7.23The rings are evenly alternating bright with darkIn 1984, microincrements were verified in 43 species of fish as daily increments 24. arising as a result of day and night metabolic cycle in the productions of otolithmatrix components.29 fitted line y A x const; T= 0.0021 mm; s = 0.00002ir Ti( sin(ii))1Collagen deposite net at high concentrations 10 at piks thenat opposites in the cycles: create dark piksNocturnal fish: Jones, C.D., K.-H. Kock, E. Balguerias. CHANGES IN BIOMASS OF EIGHT SPECIES OF FINFISH AROUND THESOUTH ORKNEY ISLANDS (SUBAREA 48.2) FROM THREE BOTTOM TRAWL SURVEYS. Hobart : CCAMLR Science, 2000. pp. 53-74.Vol. 7.SGI postlarvae smoothed YeThe rings are evenly alternating bright with darkIn 1984, microincrements were verified in 43 species of fish as daily incrementsmm0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 25. For fish preying in the night this cycle result from locomotor activities:large during the night and lower activity in the dayice forming 26. 2 nm platinum + palladium0.1 mm 27. 27 28. 28 29. 0.003 0.004 0.005 0.0m06mm292702602502402302202102001901801701401201008060optical density along the radius of the nucleus. N = 1231 measurements0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 30. 30270260250240230220210200190180170160150140optical density along the radius of the nucleus. N = 1231 measurementsfragment of 0,042 mm - of 713 measurements14012010080604020(- - - - - - - -)2 n nn0 0.01 0.02 0.03 0.04 0.05 0.06 0.07mm713 measurements = 0.042 mm00.003 0.004 0.005 0.006mm2167131( ) x x 31. 31270260250240230220210200190180170160150140optical density along the radius of the nucleus. N = 1231 measurementsfragment of 0,042 mm - of 713 measurements14012010080604020(- - - - - - - -)20 0.01 0.02 0.03 0.04 0.05 0.06 0.07mm713 measurements = 0.042 mm00.003 0.004 0.005 0.006mm216713 n nn1( ) x xmove the green line point by point 32. m32270260250240230220210200190180170160150140relative displacement of cycles of otolith optical density by 16 measurements (by 0,000941mm) gave the first minimum of sum of squared differences = 1 cycle(- - - - - - - -)21401201008060402000.003 0.004 0.005 0.006at move the green line by 0.000941 mm0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 mm216713 n nn1( ) x x2 n nn( ) min 167131x x1 minima 33. mm33270260250240230220210200190180170optical density along the radius of the nucleus. N = 1231 measurements y A ix const)) .2( sin(91Tiiifitted line0 0.01 0.02 0.03 0.04 0.05 0.06 0.07255245235225215nucleus edge2y: Day & Night harmonic component = 2y 3.39 sin( x 0.091) 235.12 0 0.01 0.02 0.03 0.04mm0.00091 34. and calculation of the number of cycles:1601501401301201101009080700 0.01 0.02 0.03 0.04 mm16014012010080600 0.002 0.004 0.006 0.008 0.01 35. 29 fitted line y A x const; T= 0.0021 mm; s = 0.00003ir Ti( cos(ii))1SGI postlarvae smoothed Yepostlarvae partmin(y-y)=360578Nocturnal fish: Jones, C.D., K.-H. Kock, E. Balguerias. CHANGES IN BIOMASS OF EIGHT SPECIES OF FINFISH AROUND THESOUTH ORKNEY ISLANDS (SUBAREA 48.2) FROM THREE BOTTOM TRAWL SURVEYS. Hobart : CCAMLR Science, 2000. pp. 53-74.Vol. 7.35The rings are evenly alternating bright with darkIn 1984, microincrements were verified in 43 species of fish as daily increments25024023022021020019018017016015014013012011010090807060504030201000 0.01 0.02 0.03 0.04mmthat are equals to number of daily increments.0.01 mm 36. larvae partSGI larvae smoothed Yemmmin(y-y)=755100 0.002 0.004 0.006 0.008 0.01 y A ix constTiii))2( cos(91fitted line ; Tr = 0.0013 mm; s = 0.00014 37. y A i20018016014012010080604020min(y-y)=75510x constSGI larvae smoothed YemmNocturnal fish: Jones, C.D., K.-H. Kock, E. Balguerias. CHANGES IN BIOMASS OF EIGHT SPECIES OF FINFISH AROUND THESOUTH ORKNEY ISLANDS (SUBAREA 48.2) FROM THREE BOTTOM TRAWL SURVEYS. Hobart : CCAMLR Science, 2000. pp. 53-74.Vol. 7.37The rings are evenly alternating bright with darkIn 1984, microincrements were verified in 43 species of fish as daily increments 00 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 0.01 0.011Tiii))2( cos(91fitted line ; Tr = 0.0013 mm; s = 0.00014larvae part 38. Profile of optical density of daily increments, along R9 for adults.3847 98137164 206273313393448587619 618y = -0.0004x + 0.00390.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.20.0120.0100.0080.0060.0040.0020.000otolith radius R9 [mm]Relative optical densityOtolith centerOtolith edgeAverage width of daily increments in the 12 daily sequencesN = 450, = 3.5910-3 9.6810-5 mm, s = 4.9210-5Number of daily increments in the sequences of ~12, 13 days from the center to otolith edge(10-3)Width of daily increments in sequences [mm]11411286420CP - centerCP 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 36n=450 daily increments to otolith edge121212121313121312181212121213131213121812121212131312131219121212121321 39. LarvalNucleusR9=0,048 mm21 increments 24h,=0,0015 mmHatching mark and similar width of daily increments: 0.0014 mm (larvaes), 0.0023 (postlarvaes)check whether daily increment is unit among similar or not similar species 40. 21 days larval otolith in the otolith of juvenile ~6,5 cm C. gunnarii,R9=0,048 mm, 21 days, =0,0015 mm, postlarvae =0,0024 mm 41. C. gunnari - similar daily increments and otolith shape413.82 sin( 3 y x 24.83) 9020.0024 )) .2y ( A sin(i91x constTiii2 i ii( ) min 661x x 42. 3.82 sin( 3 y x 24.83) 9029.27 sin( 1 y x 0.37) 8529 fitting sinusoids )) . to series of 503 measurementsmm20.002420.026y ( A sin(i1x constTiii0.1 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.2421801701601501401301201101009080706050403020100C. gunnari, empirical records of the optical density of otolithsincrements (blue line) and harmonic characteristics of the twocomponents of periodic growth of otolith: daily, by cycle of0.0024 mm and weekly, by 0.026 mm. 43. The other icefish larvaes have very similar daily increments and otolith shape0,005 mmmm SGI C. aceratus width of increment, first > next < on R9SGI C. gunnarii width of increment, larv. and juv. similar on R9SGI M. carinatus width increm. first > then < on R9, 3 but > for R10SGI S. japonicus, width all time > on R9 but < for R11SGI squid width all time < on R9Compensation narrow in height R9with width on length R3AgeGroup43speciesCP Larval Nucleus LN [mm] Juvenile [mm] Adults, Age group [mm] Age group [x/1000 mm]R9 R9 width of daily increments R9 width of daily increments R9 width of daily increments width of daily increments[mm] Aver. Min Max Aver. Min Max Aver. Min Max I II III IV V VIgeorgianus R9 0,016 0,098 0,00186 0,000941 0,004 0,88 0,00284 0,002 0,006 2,12 0,00345 0,001 0,0055 3,83 2,79 1,36 0,45 0,53 0,81C. gunnarii R9 0,013 0,048 0,0015 0,001 0,002 0,427 0,0024 0,001 0,005C. aceratus R9 0,008 0,034 0,001 0,0006 0,002 0,32 0,0016 0,001 0,002 0,83 0,0015 0,0012 0,0028 1,5 2,4 1,7 1,4 1,4 1,5S.japonicus R9 0,1 0,19 0,00051 0,36 0,00047 0,47 0,23 0,28 0,25 0,15 0,16S.japonic. R11 0,1 0,4 0,00105 0,98 0,00165 1,6 0,7 0,3 0,72 0,6 0,8M.carinatusR9 0,002 0,057 0,00114 0,367 0,00172 0,765 0,00109 1,09 0,86 0,87 0,88 0,77 0,61M.carinatusR10 0,002 0,039 0,00078 0,123 0,00047 0,241 0,00032 0,32 0,24 0,32 0,32 0,33 0,27M.carinatusR3 0,002 0,114 0,00228 0,734 0,00344 1,53 0,00218 2,18 1,73 1,73 1,75 1,54 1,22Squid ,juv 0,002 0,022 0,002 0,002 0,002 0,34 0,005 0,004 0,006Average R9 0,0082 0,0598 0,0015 0,00113 0,0025 0,4207 0,00235 0,002 0,0047 1,0188 0,00163 0,0011 0,00415 1,723 1,571 1,051 0,744 0,712 0,770S errorSR9 0,00634 0,0326 0,000435 0,000602 0,001 0,238 0,00152 0,0014 0,0019 0,763 0,00129 0,00014 0,00192 1,467 1,221 0,618 0,509 0,525 0,5580.00360.00320.00280.00240.0020.00160.00120.00080.00040S. japonicus R9larwy juvenes I II III IV V VI 44. Larval Nucleus on transverse plane in otolith of juvenile of Ch. aceratus44R9=0.048 mm, 31 days, =0.0015 mm 45. 24 days larval otolith in the otolith of juvenile ~7.6 cm C. aceratus,R9=0.048 mm, 31 days, =0.0015 mm 46. larval otolith r = 0.024 mm in the otolith of juvenileTrematomas newnesi (after R. Radke)46 47. In the otolith microstructure daily microincrements show that in onedirections are very narrow and in the other directions are very wide. 48. Greater pressure net compressed, smaller - a loose onewhen in one directions their width are increase in the otherdirections are decrease.This sugest that mass of otolith should be constant parameter for growthof otolith 49. 49Ps. georgianus from South Georgiaand South Shetland I.Age from otolith mass.The otolith weight frequency indicated that there weremodes with normal distributions associated with the agegroups.Ps. georgianus, Georgia Pd., 1991; N=293the frequency Age group II of otolith weight; 52 class; MO, [g]Age group V0.0644707Age group IIIAge group IV AgegroupVIwidth class = 0.001896 g50454025201510505 15 25 35 45 55TL, cm0.06067830.05878220.02654680.02844300.0739517Age group I0.01706580.00948100.07584790.07774410.00379240.00758480.01137720.01516960.01896200.02275440 [gram]0.03033920.03413160.03792400.04171640.04550880.04930120.05688600.06826310.07205550.05309360.00568860.01327340.02085820.02465060.00189620.03223540.03602780.03982020.04361260.04740500.05119740.06257450.06636690.07015930.05498980.0796403Age group 0Otolith weight class containing a highintergroup breaksAge groups divide large intergroup breaks ~ 10 larger than the intra. 50. Adults Ps. georgianus from S. Georgia I. -19902= 18,1,8 st. sw.P=0.021DN=0.107=0,3950Age groups are separated by large distancesbetween groups in frequency=0,0000205s=0,000045 g S.G. 1989/900.000025460.000002730.000048180.000093640.000070917060504030201000.00010870.000004350.000056520.000160870.000213040.00026522120100402000.070.040.02[g]female0.010.030.050.060.08male00.05710.06980.0710N = 310.06380.06260.06500.067450.06140.06620.0686N = 132=0,002040,0000557 g2= 12.89,7 st. swob.P. ufn. = 0.0749DN=0.0643= 0.99=0,0173N = 172 0,00147 g2= 7.41,7 st. sw.P=0.595DN=0.042=1=0,000198s=0,000544 gN = 64504540353020152= 14,14,3 st. sw.P=0.0027DN=0.162=0,069N = 722= 18,1,8 st. sw.P=0.021DN=0.107=0,39=0,04440,00717 g302520151050V0.02630.02840.03050.03260.03470.0242II III0.036530.047470.045790.046630.041580.038210.037370.039050.040740.042420.044110.039890.043260.04495504540352520150.04831N = 1140.05350.05470.04870.05110.05590.04990.05230.05820.05940.0606IV0.02190.02210.01770.01360.01250.01460.01670.01880.02090.01560.01980.0120.010.0110.0050.00100.0020.0040.0060.0080.0030.0070.0090d = 0,000182 g;Idifference=~0,0085 gdifference=~0,0042 gd = 0,00052 g;difference=~0,0079 gd = 0,00211 g;difference=~0,0049 gd = 0,00084 g;=0,05480,00415 gdifference=~0,0045 gd = 0,00119 g;=0,06350,00335 gd = 0,001194 g;=0,03140,00367 g0.000328600.00011430.0005429100=0,000343s=0,000333 g0.0000714300.000014290.000128570.000185710.000242860.000300000.00035714301050=0,000113s=0,000544 g0.0001078900.000055260.000160530.000213160.000265790.000318420.0003710620100=0,000148s=0,000148 g2510500.0005333300.000255560.000811110.00108888=0,0000508s=0,0000047 gof otolith mass. 51. 5110-3gAfter confirmation that groupsin otolith mass frequencydiffer by annualincrementN=800/3001 N=486/884R =97.66%* *0 1 2 3 4 5 61988/89 (1-10 II)L=63.47; k=0,32; t0=-0,0074R2=0,99; L0=0,15; =3,11Age groups (0-6): in length class ( - TL, cm) and in otolith mass class ( - MO, gram), * - homogeneous groups - test76 80563616otolith mass, MO, [g] / length TL, [cm]1987/88 (15 XII-04 I)0 1 2 3 4 5 61989/90 (02-29 I)N=1008/605 N=588/2097F=999.99F=999.99F=761/999L=63.391,22; k=0,330,031;t0=-0,0070,00054R2=0,98; error=10,32L0=0,15; =3,12a=2.45710-3 5.99110-4b=0.0135 2.126510-4corr. coef. = 0.963s=3.95710-3L=68.06 0.653k=0.29 0.0135t0=-0.008 0.00012R2=0.98; error=7.32s=2.702a=3.06710-3 4.3510-4b=0.0131 1.59410-4corr. coeff.=0.983R2 =96.55%s=3.2510-3F=33.81L=61.53 0.66k=0.35 0.0071t0=0.007 0.00011; L0=0,15R2 =0.99; error=4.31s=2.074; =3.12a=3.52410-3 2.06510-4b=0.01284 2.22910-5corr.coef. .=0.988s=3.19110-3F=51.437 L=61.03 0.396k=0.35 0.0063t0=0.007 0.00011R2 =1; error=5.623s=2.37021a=4.3410-3 3.2610-4b=0.0127 1.26510-4corr..coef .=0.986R =97.19%s=3.12810-3F=18.292[cm]60402076 8060402076 80604020t [years]:1986/87 (10-12 XII)N=239/2812a=3.16810-3 5.19510-4b=0.01282 1,75610-4corr. coef. = 0.979R2=95.81%s=3.06210-3F=4.827* * *563616-4 0563616-4 0R2 =92.82%* * *-4 01990/91 (05-30 I)L=65.451,74;k=0,280,03;t0=-0,0080,0047R2=0,98; s=2,03; F=999,99L0=0,15; =3,08L0=0,15; =3,13L0=0,15; =3,12-a=1,85210-4b=0.0122R2=99.7%85/86 86/87 87/88 88/89 89/90 90/91 91/92 52. the age of the fish shall be determined by weighing of otolith.Ps. georgianus of South Georgia has a heavier otoliths and larger TL than from the Antarctic, butincreases their masses are similar.Separating indexes neighbouring peaks in the otolith frequency: I>2, and shows significant distances between age groupsage groupOW [g]52TL=21,3cm; s=2,5 cm; N=41=0,0171g; s=0,0022 grange: (0,0124g-0,0257gI=634,6; 2,4 cm; N=540,0312; 0,0025 g(0,0257-0,037I=5.3Subantarctic S. Georgia10 I 79 - 29 III 7945,6; 1,8 cm; N=120,0442; 0,0025(0,037-0,049I=4.850,5; 1,3 cm; N=340,056; 0,0025 g(0,049-0,063I=2.651,3; 1,7 cm; N=280,0633; 0,0031(0,063-0,071)I=3.153 cm; 0,0716 g;>0,071A=81,98*OW-0,483R2=0,97; N=170654321076543210age groupNo47,6; 1,86 cm; N=2290,043; 0,0028 gI=3.530,5; 1,63 cm; N=110,0235; 0,0014 gI=6.2 49,9; 2,1 cm; N=520,0532; 0,003 gI=551,1; 1,81; N=80,0664; 0,0022 gAntarctic Zone30 XII 78 - 25 III 79 42,1; 2,24 cm; N=940,0334; 0,0018 gI=4.2A = 88.048OW+0.5222R = 0.897654321014121086420N0.01000.01200.01400.01600.01800.02000.02200.02400.02600.02800.03000.03200.03400.03600.03800.04000.04200.04400.04600.04800.05000.05200.05400.05600.05800.06000.06200.06400.06600.06800.07000.07200.0740 53. Ps. georgianus from Antarctic and Subantarctic Island growth very similar.Otolith are species-specific and should characterized growth similarpopulations. Growth curves of Bertalanffy for fish from South Georgia andfrom Antarctic as was to be expected are similar. The earlier development of thespecies in warmer S. Georgia giving larger body and a few months older age.530 0.01 0.02 0.03 0.04 0.05 0.06 0.07605550454035302520151050OW=(t +0.5222)/88.0481; [g] TL, cmsquares - Antarctic Zone, 30.XII.78-25.III.79:Lt=66.32(1-e-0.26(t +0.0087)); L0=0.15 cm;N=394; R2=0.99; '=3.06;t=88.048*OW-0.5222; R2=0.89Age Group, t [years]circles - Subantarctic South Georgia I., 10.I.1979-29.III.1979:Lt=66.1(1-e-0.28(t+0.008)); L0=0.15cm; N=172;R2=0.98; '=3.09.Small marks are the estimated age, and large marks are their averages.0 1 2 3 4 5 6 7