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(2) MEDDELANDE från HAVSFISKELABORATORIET- LYSEKIL Ichthyoplankton of the Skagerak: maps and tables concerning May and June. Arinin Lindquist January, 1968. nr h2.
(3) Index Introduction Table 1: Expeditions 1959-1963 Table 2: Position of stations Table 3: Number of eggs of Sprattus sprattus and Scomber scombrus Maps No. 1,9,17,21,22,29,36,43,66,83,103,122 Ships^cruises (double line = work 144,163 from 2200 to 0400) Ichthyoplankton, species Ammodytes sp.,larvae Boreogadus esmarki,larvae Callionymus sp.,eggs Clupea havengus,larvae C. piIchardus ,eggs. 49,70,127,147 61.80.98.117.139.158.176 62.81.99.118.140.159.177 49,70,127,147 32,39. Cyclopteridae,larvae Engraulis encrasicholis,eggs Gadus morrhua,larvae Glyptocephalus cynoglossus ,larvae Gobiidae,larvae. 65,102,121,143,162,180 25 32 39 6l’,80’98,117,139,158,176. Hippoglossoides platessoides,larvae labridae,larvae Limanda limanda, larvae Maurolicus rmlleri ,eggs Me lanograrrmus aegle finus, larvae. 139,158 65.102.121.143.162.180 63,82,100,ll9,l4i,l60,178 62,81,99,118,140,159,177 61,80,98,117,139,158,176. Merlangius merlangus,larvae Microchivus boscanion,larvae Molva molva,larvae Onos sp.,eggs 11 , larvae. 60,97,116,138,157,175 64.101.120.142.161.179 61,80,98,117,139,158,176 52.73.89.108.131.150.168 53.74.90.109.132.151.169. Platichthys flesus,larvae Pleuronectes platessa,larvae Pollachius pollachius ,larvae P. virens,larvae Psetta maxima,larvae. 64.101.120.142.161.179 64,101,120,142,161,179 61,80,98,117,139,158,176 61.80.98.117.139.158.176 64,101,120,142,161,179. Scomber scombrus,eggs " ,larvae Solea vulgaris ,eggs Sprattus sprattus,eggs. 50,71,87,106,128,148,166 51,72,88,107,129,130,149,167 62.81.99.118.140.159.177 2,3,10,21,23,30,37,45,46,68,85,104, -ipp ip4 14s i64 11,21,24,3.1*38,47,48,69,86,105,125,. ". ,larvae. Tris op torus minutus,larvae. 64.101.120.142.161.179 65.102.121.143.162.180. 126,146,165 61,80,98,117,139,158,176.
(4) Eggs (see also Callionymus3Clupea piIchavdus,EngrauliSyMau.rolicus3Onos3Scomber, Sprattus) Eggs without oil droplet < 0.75 ma O.75-O.85 run <0.88 mm 0.85-0.98 mm 0.88-0.99 mm >0.98 mm 1.00-1.15 mm >1.15 mm. Maps No. 133,152,170 134,153,171 54,75,91,110 135,154,172 55,76,92,111 136,155,173 56,77,93,112 57,94,113. Eggs with one oil droplet <1.00 mm 1.00-1.15 mm. 137,156,174 58,78,95,114 59,79,96,115. Eggs with transparent yolk. Chaetognatha Eukrohnia hamata Sagitta elegans Sagitta setosa Spadella oephaloptera Echo surveys. 8,16,20,28,35,42 6,7,14,15,19,21,27,34,41 4,5,12,13,18,21,26,33,40. 28 44,67,84.
(5) Introduction This paper is based on material collected by the R/V Skagerak and the R/V Thetis during 1959 - 1963. The work represents the Swedish part of the joint Scndinavian studies of the spawning grounds of the sprat. In this publication all the maps concerning the distribution of fish eggs and larvae and of chaetognatha are re produced. A detailed interpretation of the material is under preparation. Maps concerning the hydrography of that time will also be made. Part results from these investi gations have repeatedly been published, for example see LINDQUIST 1967. In the material from 1959, I960 and 1961 only clupeid eggs and larvae, and chaeto gnatha. have been analysed. As the work with the latter group was a very tedious. one and did not give much information with regard to the main question, it was abandoned. In the material from 1962 and 1963 all fish eggs and larvae have been examined. From earlier investigations on the spawning of the sprat (SUND & KOEFOED 1911, HÖGLUND 1938) in our area it is well known that the sprat spawns in surface layers. Therefore, it was decided to restrict the sampling of plankton to tows 50-0 m (in 1959 additional samples were taken from 100-0 m). At the beginning of the studies an agreement was made between the three count ries to use nets with a diameter of 1 m.. All samples referred to here have. been taken with such a net: in. 1959, however, the length of the nets varied and therefore the samples are not quite comparable.. In 1960-1963 all samples. were taken with a net of the following construction: 1 m diameter, an overall length of 28O cm, of which 200 cm was straining gauze, in i960 silk gauze No. 3, in 1961-1963 nylon gauze No. 4 with meshes of 280. fX,. equivalent to shrunk silk. gauze No. 3. In most cases two tows 50-0 m were made on each station.. The figures on the. maps and on table 3 give the mean value of the actual number of organisms found. As fish eggs develop rapidly in the sea, in a few. days, depending on tempera. ture, emphasis was given to visit all the stations during one expedition in a short time.. In 1959 we were still unaware of how to put sections and stations. in order to get a detailed picture of the spawning and of the drift of eggs and larvae.. During further discussions it was then decided to take the old section. "P" between Denmark and Sweden as a heart point for constructing a net of stations which then has been used in 1960-1963. The stations were numbered P 1 to P 4 (old section) and 1 to 123. They have all been visited; those in the North Sea, however, only during 1961. Additionally, a number of stations inside the Swedish archipelago have also been visited. In the open.sea, the research vessels Skagerak and Thetis have been on course all around the clock. Which samples were taken at night is seen from the course map given to each expedition: two lines for work done from 2200 to 0^00..
(6) All samples have been preserved with sea water and formalin at a final dilution of about 4-5. %•. The material has been worked up in the laboratory, first by sort. ing out all fish eggs and larvae (and chaetognatha), and then by further examin ation. ”Uncertain” eggs have been measured with an ocular micrometer, sprat eggs, mackerel eggs and other which are easily recognizable have only partly been measur ed.. Larvae have been individually determined; the length of larvae is mainly an. estimation as the body mostly is curved. All measurements and determinations have been made by the author.. Literature. HÖGLUND, HANS, 1938: Ueber die horizontale und vertikale Verteilung der Eier und Larven des Sprotts (Clupea sprattus L.) im Skagerak-KattegattGebiet. - Svenska Hydr.-Biol. Komm.Skr.N.S. Biologi, 2(3), 40 pp. LINDQUIST, ARMIN, 1964: Zur Fischereihydrographie der Sprotte (Clupea sprattus) an der schwedischen Westküste. - Inst.Mar.Res.Lysekil, Ser.Biol., Rep.No. 15, 87 pp. - „ -. 1967: Problems on fish eggs and larvae in the Skagerak.- (Lecture. before the 2nd Marine Biol. Symposium, Bergen 1967, in press) SUND, OSCAR, 1911: Uners^kelser over brislingen i norske farvand vaesentlig paa grundlag av ”Michael Sars” togt 1908 - Med tabeller over forekomst af egg og yngel fra ”Michael Sa.rs” togt 1908 af EINAR KOEFOED.Aarsberetn . vedk.Norges fiskerier for 1910 (3): 357-474.
(7) Table. 1 Expeditions with the R/V Skagerak (Sk) and the R/V Thetis (Th).. Year. May. Maps. 1959. 19-23 (Sk). 1-8. I960. 29 April11 May (Sk) 27 May (Sk). 17-20 21. 1961. 1962. 1963. 15-17 & 20-21 (Sk). (Less samples which for than 1200 samples).. lUU-162. June. Maps. Number of plankton samples. 15-18 (Sk). 9-16. 138. 7-20 (Sk). 22-28. 157. a/29 May-1 June & 5-9 (Sk) 29-35 b/10 & 12-13 (Sk >36-1*2. 216. aA-8 (Sk) b/12-13 (Th) c/14-15 (Th) d/18-20 & 26-28 (Th). 326. 103-121. a/10-lL & 17-19 (Sk) b/2^-27 (Sk). 122-11*3 163-I8O. 1*3-65 66-82 83-102. 1*60. 1297 various reasons have not been analysed = not more.
(8) Table 2.. Position of Stations. a) Stations with letters E 11°25" 57°53" 18" 52" 04" 50" 10°52" 48" 49" 52" 5 47" „57" 44" 58 02" 42" 07" 4o" 12" 38" 17" 20" 36" 20" 47" 20" 057" 20" 11 06" 20" 10" 24"5 08" o4" 28"5 01" 32" 5 10°58" 33" 48" 33" 33"5 39" 33"8 29" 34"2 13" 34" 5 09" 03" 37"5 09°57" 4o"5 44" 51" 47" 45" 4i" 49" 46" 51" 5 51"2 055" 10 04" 51" 51" 13" 5 50"7 22 "5 32" 50"5 50"2 4o"5 49" 50" 4 9"9 05S" 09 21" 39" 36" 26" ki 32" 32"5 k2 38" 29" 44" 43 25" 44 49" 21" 5 18" 45 055" 46 l4" 10 01" 11" 47 07" 48 12" 07" 18" 49 03" 57°59" 50 24" 30" 56" 51 52 36" 52" 53 48" 42" n 26 etc. see Index after p. 87 ini LIÏIDQUIST 1964 p p p p s s s s s s s II H H H V V J J J J J J J J J J J J u u u u u u u u u R R R R R R R R R R R R R R R. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40. N. b) Stations without letters 1 2 3 4 5 6 7 8 9 10 11 12 13 l4 15 l6 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 4o 4i 42 43 44 45 46 47 48 49 50 51 52 53 54 55. N. 57 34"5 32" 5 30"4 27"6 26"4 49" 5 48"3 58°01" 57°59" 57"5 55"5 54" 52" 58°08"5 07" 05" 03" 01" 5 57°59" 58°l6" l4"5 12" 5 10" 5 08"5 06"5 24" 22" 20" 18" 5 16" 5 l4"5 31"5 29" 5 28" 26" 24" 23" 39" 37" 5 35" 33"5 32" 30" 47" 45" 43" 4l" 39" 5 37" 5 4l" 54"5 52" 5 50"5 49" 46"5. E. 11°36" 21" 06" 10°50" 42" 4o"5 30" n°20" 10" 10°58"5 48" 36" 26" 11°l4" o4" 10°52" 42" 30" 10" 11°09" 10°58"5 46" 9 35" 23" 12" ll°04" 10°53" 40" 28" 16" 04" 53" 47" 34"5 22" 09" 09 56" 10°53" 42" 28" l4"5 0!"5 09 48" 10°48"5 36" 22" 02" 09°55" 41" 037" 10°43" 30" 15" 5 08" 09°48".
(9) 56 57 58 59 6o 6i 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82. 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100. 101 102. 103 10 4. 105 106 107 108. 109 110. II. '44" 5 'l*5"5 49" 56" '03" 10" 5 'In" 5 40" 51"7 59" ’06" ’4l" kr 54"5 58 01" 08. ". 15. '. 18" 21. ". 57°34"5 kl k8 55" 21" 5 28" 3k'9 kl 48"5 21" 28" 35" 42" l4" 21" 28" 35" 4l"5 47" 51" 54"5 43" 39" 5 36"7 07" 20" 32" 56°58" 57°10" 2k 56°U5' 58" 30" 30" k5 16" '. '. '. '. '. E. 09°33"5 10°2l". l6" 08" o9°59" 05!" 10 08" 04" 09°55" k6 36" 5 50" kl 31" '. '. 21. ". 11 01. " ". 08°57" 52" 09 31" 21" 11" 01"5 19" 10" 00" 5 08°50"5 40" 48" 39" 30" 20" 27" 18" 08" 07°59" 4l"5 44" 5 39" 34" 11°27" 03" 10°42" 08°03" 07°45" 25" 39" 10. ". 06°45" 07°l4" 06°45" 07°4o" o6°4o" 10. ". 07°15". 111 112 113 114 115 ll6 117 118 119 120 121 122 123. N. 56°11" 03" 03" 55 45" 2k 33" 19" 05" 54°51" 32" 26" 26" 11" '. E. 06° OJ kO o6°45' 10' °. -. 07°3r. o6°45' 09' 45 09 M 07 28' 06°09 45.
(10) Table.3. Number of eggs of Sprattus sprattus and Scomber scombrus. Station number without additional figures = tow with the lm net 50-0m; additional figures indicate length of tow in meters. 1959 Date. Station. V 19. P 1 P 2 P 3-40 P 4 S 5 S 6 s 7 S 8 S 9 S10 Sll H12 H13 Hl4 H15 Vl6 V17-40 Jl8 J19 J20 J21 J22 J23 J24 J25 J26 J27 J28 J29 U30 U31 U32 U33 U34 U35 U36 U37 U38-25 R39 r4o r4i r42 r43 r44 r45 r46 r47 r48 R49 R50 R51 R52 R53 P 4-40 P 3-45 P 2 P 1 H15-45 Vl6. 20. 21. 22. 23. VI 15. Sprattus sprattus 21 324 158 54 204 l4 0 0 0 0 3 3 1 43 28 36 0 6 0 0 4 6 7 6 11 30 16 0 0 1 0 0 0 1 2 4 2 1 0 0 0 0 0 0 0 0 0 0 0 0 0 22 97 370 348 118 106 72 2. Date. Station. VI 15. V17 Jl8 J19 J20 J21 J22 J23 J24 J25 J26 J27 J28 J29 R39 R40 R4l R42 R43 R44 R45 r46 r47 r48 r49 P 4-40 P 3 P 2 P 1. l6. 18. Sprattus sprattus 11 0 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 46 6 6 21. I960 VI. 7. 8. 9. 10. i-4o 2-40 3-30 4-35 5-20 7 6 p 4 P 3-45 P 2 P l 8-40 9 10 11 12 13 56 50 49 43 37 31 25 24 23 22 21 20. 11 0 1 119 16 145 213 444 46l 629 344 139 249 0 0 0 0 0 0 0 0 0 0 0 0 0 0 37 76. Bate. Station. l4 15 l6 17 18 11 19 i4 26 27 28 29 30 36 42 48 55 15 54 47 4i 35 34 40 46 16 53 52 45 39 33 32 38 44 51 Kosterfj. Skålholmen 17 Mjölskär-30 Tovas ungar-45 Fj46-25 Fj48-25 Fj49b-15 Fj49a-15 Fj50-15 Fj51-20 Fj52-25 Fj53 20 Fj26 Fj28. VI 10. Sprattus sprattus 72 3 0 0 0 0 77 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 59 36 13 7 27 17 17 371 11 16 6 8 c;. s. 5 16 201 1 0. 1961 v 29. 30. i-4o 2-40 3-35 4-35 98-23 97-30 96-40 P 1 P 2 P 3-4o P 4-40. 32 217 64 79 68 503 940 563 164 415 306.
(11) 1961 Date. St at i or. Sprattus sprattus. V 30. 6 T 5T 58 13 12 11 10 9 8-1+0 11+-1+0 15 16 IT 18 19 59 60 25 2k 23 22 21 20-1+0 26-1+0 2T 28 29 30 31 6l 62-20 63 61+ 65. 0 3T 90 1+6 0 0 0 3 ll+5 602 82 35 l1 00 0 0 0 0 0 0 0 0 IT 8 325 T1 0 ? 0 0 0 0 l4 0 0 1. 31. VI. 1 5. 6. 66 T8 TT T6-25 T5-20 T9-10 80-10 81-20 82 83 8t. 86 85-1+0 81+-20 99-25 100 T 101 10l+ 103 102-20 106-1+0 '109-1+0 108-1+0 105-20 8 10T-20 110-30 112-30. 0 0 0 2 21 1+ il+ 0 ?. 0 0. 0 0 0 0 0 0 0 0 0 0 0 0 0 T 1 2l+. Date VI. Station 8. 9. 113-30 111-1+0 114-1+0 116-30 115-25 118-35 120-30 121-20 123-30 122-30 119-35 HT. Sprattus sprattus 0 0 0 22 6 1 1 29 4 0 0 1.
(12) 1962 Date VI. Station. 11. 5. 6. 7. 1-45 2-1+5 3-30 4 98-20 97-25 96 P 1 P 2 P 3-1+3 P 1+ 6 7 57 58 13 12 11 10 9 8-1+0 l4 15 l6 17 18 19 59 60 25 2l+ 23 22 21 20 26 27 28 29 30 31 6i 37 36 35 34 33 32 38 39 1+0 1+1 1+2 1+3 1+9 1+8 1+7 1+6 1+5 1+1+ 51 52. Sprat tus sprattus 371 372 119 37 2 306 274 985 799 235 185 57 101 73 322 120 64 37 l44 505 718 603 633 46 3 18 170 163 12 25 2 0 5 156 369 485 2 7 0 0 0 0 0 0 0 1 0 69 300 3 1 0 0 0 5 0 0 0 0 105 1 0. Scomber soombrus 186 328 19 0 0 19 76 333 52 1 2 0 4 0 2 3 5 39 14 235 166 157 185 44 25 l4 0 6 22 3 55 50 35 136 249 551 72 198 192 129 259 115 143 46l 1033 185 60 422 656 129 102 72 748 973 255 221 392 200 128 666 58 83. Date. VI. Station. 7. 53 54 55 56 8 50 12 96 P 2 9 P 3 10 P 4 13 11 6 12 7 13 57 58 62 63 l4 57 57/58 58 58/59 59 19 19/13 13 13/ 7 7 6 6/12 12 12/ 8 18 11 P 4 15 10 P 3 9 P 2 96 1 18 P 1 8-40 14-45 20 26 27 21 15 9 19 P 2 P 3-40 10 l6 22 28 29 23 17 11. Sprattus sprattus 3 3 0 24 1 839 64 93 52 4 95 38 52 55 248 0 225 203 123 107 0 397 724 394 59 0 46 422 456 157 102 515 150 35 0 l4o 45 115 308 76 0 199 0 154 79 44 70 664 84 35 656 116 218 624 99 9 7 9 0 0 0 271. Scomber s combrus 190 265 319 488 1030 235 84 126 61 4o 50 48 11 27 35 21 l6 11 4 5 0 l6 18 46 50 l4 81 87 49 11 9 31 80 32 28 39 2 44 12 78 0 46i 0 452 51 103 l4l 4t 8 ill 16 4 10 4 60 42 42 198 161 152 44o 367 216 56 119.
(13) 1962 Date. Station. Sprattus sprattus. P 4 6 12 18 24 30 31 25 20 19 13 7 58 59 60 6l 66 65 64 63 62-15 57 l8 M-35 Fj53 Fj52-17 Fj51-22 Fj50-35 Fj49a~20 F j 49b-20 Fj48-25 19 Fj47-15 Fj46-33 Fj44 Fj43 Fj42-35 Fj28 Fj26 20 Fj63-30 Fj62-22 Fj6I-IO Äbyfj.yttre--25 Mjölskär-25 Skålholmen 26 67 68-30 69 70 83 82 27 81-35 80-15 79-10 88-20 89-30 90 91 92 28 93 94 95. VI 19. Scomber scorribrus. 460 126 85 0 0 0 0 0 0 16 263 332 84 5 0 0 0 558 0 ll4 93 171 131 13 11 8 7 21 27 12 86 4o 8 100 39 9 68 0 1 1 4o 151 0 0 0 0 0 0 32 3 6 4 4 0 0 0 0 0 0. 11 13 138 0 252 93 540 376 279 295 255 64 81 4io 385 1497 430 87 0 6 4 113 16 1 0 0 0 0 0 0 0 1 1 0 6 1 23 0 0 0 216 577 0 20 18 28 47 17 94 3 2 16 14 57 378 622 915 569 145. 332. 0. 1963 V 15. P 1. Date. Station. 8 9 P 2 P 3 10 11 l6 P 4 6 12 13 7 57 58 62-15 63 64 65 66 61 60 17 59 19 25 31 30 24 18 17 23 29 28 20 26 27 22 21 20 14 15 l6 Fj42-25 Fj43-25 Fj44 21 F j 46-25 Fj48-20 Fj49-20 Fj50-15 Fj51-15 F j 52-20 Fj53-25 M-25 Fj61-25 Fj62-20 Fj28-40 F j 22-30 Fj24 Fj26 1-45 VI 10 2-40 3-30 4-30 5-20 98. V 15. Sprattus sprattus 168 158 147 30 348 1 6 35 0 109 0 19 l4 0 36 58 20 0 0 8 13 55 1 0 0 9 10 0 0 0 0 86 85 0 50 95 433 116 1 12 17 22 158 19 6 7 3 2 36 33 5 2 7 0 1 0 9 234 9 3 2 1. Scomber scorribrui 1 0 0 0 1 0 2 0 1 3 3 1 0 1 4 2 2 0 0 1 0 1 0 1 0 2 5 1 1 0 1 3 2 8 1 1 2 2 1 1 0 0 0 0 1 0 1 0 0 1 0 0 0 0 0 0 384 147 133 92 11 6.
(14) 1963 Date. Station. VI 10. 97-30 96 P 1 8-45 9 P 2 P 3-40 10 11 P k 6 12 13 7 57 58 62-12 63 64 59 19 18 17 16 15 l4 20 21 22 23 24 25 6o 65 66 6l 31 30 29 28 27 26 32 33 34 35 36 37 43 42 4i 40 39 38 .44 45 46 47 48 49 50. 11. 12. 12-13 13. lk. Sprattus sprattus 6 154 134 79 1 371 230 3 7 124 301 134 37 615 175 559 2 319 ? 24 0 0 0. Soomber scombrus 121 88 123 22 64 123 67 113 85 90 4o 142 12 5 13 20 28 5 ? 11 35 39 86. •?. V. 1 384 222 0 0 0 0 0 0 0 1 0 0 0 1 1 0 82 6 5 0 0 0 0 0 0 1 0 8 0 8 1 2 1 0 3 1. 188 560 6o4 i4o 44 245 219 218 26 4o 18 75 158 197 l4i 51 127 568 90 128 97 47 123 107 84 82 340 84 79 76 82 115 38 370 347 1447 272. Date. Station. VI l4. 56 55 54 53 52 51 67 68-30 69-30 70 71 72 73 74 78 77 76-30 75-20 79-14 80-18 81-25 82 83 87 86 85-40 84-25 88-20 89-35 90 91 92 93 94 95 P 4-45 P 3-40 P 2 P 1 P 1 8-45 9 P 2 F 3-45 10 11 P 4 6 12 13 7 57 58 62-14 63 64 59 19 18 17 16. 17. 17-18 18. 19. 24. 25. Sprattus sprattus 0 0 0 0 0 0 85 477 0 0 0 0 1 3 0 0 16 18 21 16 2 0 0 0 0 0 69 12 0 0 0 0 1 0 0 103 99 284 233 201 225 6 99 158 0 0 204 446 0 1 37 270 17 64 107 3 0 0 0 0 0. Soomber scombrus 397 799 44i 175 265 256 77 24 24 69 322 2483 419 3 170 15 94 9 17 28 75 67 151 119 30 31 84 55 21 23 65 501 1112 455 174 19 56 175 179 157 93 154 102 96 206 460 80 203 359 1284 156 74 137 194 275 49 49 105 81 306 456.
(15) 1963 Date VI 25 26. 27. Station 15 l4 Fj22-30 Fj2U FJ26-100 Fj28-l+5 Fj29 Fj63-30 Fj62-20 Fj61-15 F j 1+2-30 Fjl+3-1+0 Fj 42+-1+0 Fjl+6-30 F j 1+7—30 Fj 1+8-20 Fjl+9a-20 Fj50-18 Fj51-18 Fj52-18 Fj53-35 M-30 P 1 P 2. Spratius sprattus. 0 0 0 0 6 21 31+ 9. 13 9 10 9 9 57 0 72. Scomber sconibrus. 190 72 0 1 6 22 123 ? 6. 16. 15 0 1 1 1 0 1+ 0 2 0 0 6. 19 88. 5 31. 3. 206. 2h. 1+ 1+ 19.
(16) 8‘. m. 10* r^^r^-T,—9* r—f—-f—1—r—i—r-T~-i—i—t~~t. it. ...—,------ r. 12'. 60“.
(17) 6°. T. 8°. S°. 10°. if. 12°.
(18) 1968. V. B-23. R/V Skagerak.
(19) V &;.
(20) 60'. \rf. .%. B5Ö V 19—23 Sprattus spraltus. Eggs. ■soc-o m.
(21)
(22)
(23)
(24) e© V. »-23. Sagitta elegans. tXH)m.
(25) 60”. 59*. es v ©a EukroMa hamata j 50-0m. eo-om. l. 58'. 57*.
(26) 8". 9'. lo. ir. 12. 19S9 VI ÏHB R/V Skagerak. '.
(27) SS9 V! B-B Sprattus spcaftus 50-0 fn.
(28) «?!■. Larvae. 50-0.
(29) 60. '. T~rr~[“~T. 9*. “-r~rr~r. 10*. T—T--T"-r “1"- r. ir. I1" '-1—T. )"' ■ I T. 12'. 60*.
(30)
(31) 60'. 4, $. 859 V! 8-16 Saçrrta efegans 50-0 m. ' - Z-.ii:.
(32) »l, B99 VI B-» (f Sagitta elegan; \ tXKfm. jV ’ :.
(33) 12'. BS \J. M. Eukrohnia hamata. 50~0m 100-0 m.
(34) 9. 12. '.
(35)
(36) 8". 9*. SO1. Y 58°. ■\. T. 10'. 11*. r~r~T~r. 12'.
(37) I960 W29-V11. ßjkrohnia hamata.
(38) -5- R/V Skagerak. 1960 V ■to. _ ^. 2?. Sprattus sprattus. 36. 54k. Larvae. 30. »! 4? 3. ______ Gulirhorsfj.. . uV J/ 19®. V. 27.
(39) 12* 60*. 59*. 58*. 57*.
(40)
(41) VI. 7-20.
(42) 9'.
(43)
(44)
(45) 5ß,s Spactfia cephaipfera. 1960 V!. 7-20. EukroMa hamata.
(46) 6e. 7*. 8*. 9s. 10°. If. 12s. S61. V! 29-1. R/V Skajerak. M.
(47)
(48) 9°. 10s. If. 12*.
(49) 1961 VI. 29-1 5-9. Epgraulis encras chctus Ctupea pikhardus Q.
(50) '1961 VI. 29H. 5-9.
(51) 1961 VI 2ÎH 5-9 Sagitta eiegans. O €.
(52) 6s. 7°. 8s. 9*. 10°. If. •2°. 1963 V!. 29~1 5-9. Euknhnia hamata. J. C".
(53) 1961. VI. 10. R/V Skagerak. 12-13.
(54) B61 VI. K) tM3.
(55)
(56) Izzï. j 1961 VI. B Î2-S. yf. Engrautis encrasJchafüs , p '■Ckf»a pScharAs 0K/V V-nr-^l.
(57) 1961 VI t) ß-G Sagilta setosa. T~ ~.
(58) .......i.. ;. Sagitta elegans. I ... L. A>. ........ 5?.
(59) jss» vi ». ehs Bukmtria hamata.
(60) 60'. 1962 V! 4-8 R/V Skagerak.
(61) l{®62 VS. 4-7 Aßt» soundings. .A HIV Thetis. 57'.
(62) 60". 59’. 58". 57*.
(63) 1962. Vt. 4-6. Sprattus sprattus.
(64) 60'. 1962 V!. 4-6. Sprättas sprêttus Larvae. 57'. T~~~T.... 57.
(65) TTZIZZ. SS2 VI 4-0.
(66) ,«62 V! 4-6 {Ammaefytcs sp,: t 1 Ciupea hartngus : 2. \arvae ..
(67)
(68) 4 m2 VS 4-6. S’. Scomber sasmbnjs. -V. Larvae.
(69) §9.
(70)
(71) 60“. 59*. Eggs without cå dropéet. 58“. 57“.
(72)
(73) vs 4-8 fcgçis without öS dropiirt. tûO-tS mm.
(74) VI. 4-8.
(75) 9'. 12'. 10'. 1962, VI Eggs with one dt droçki 100-lB mm.
(76) Eggs. Transparent yoUc. 57.
(77) 4962 V! 4-6. Mertangkjs rmriargus L Larvae.
(78) T^T"TTT-TT. Molva rno&a : 1 Trisopterus minutus . @. î Är*^e»!us «marts: 1 •Metanåjj^nrnus aegtefmus .©. Gadus morrbua : (!*} - jflsSacfcus pdlachm : g —fbttachvsjrinens: <7> Larvae / ! ^.
(79) 57.
(80) .i:rzi ii. 1962 'VI. 4-8. Umanda limanda Larvae. 7.
(81) 60*. 59*. täeifrof&ctcs [datesss: t 'piaticmys (tesus. Glyptocephalus cynogbssus: 31 ■ Psetta maxima : (D „iftdtmckirus bosamn-.<&> Larvae ft. !. 58*. 57.
(82) 1962 VI.
(83) _.L. - 'i- .- 1_'1.
(84) 1962 VI 12-13 Echo soundings ,R/V Thetis.
(85)
(86) 1962 Vi !2~S3 Sprattus sprattus ••Larvae Okif E sampter.
(87) 1962 VI. 12-0. Ammodytes sp: t y Ciupea harengos : ~~%Larvae s. 2.
(88) 1962 VI 12-13 Scomber. ■Number at. scambrus.
(89) %. 1962 VI 2-0 Scomber scomàrus.
(90) % 1962 VI 12-13 [T Onos sp. \ 0.69-0.90 mm. “;Ë9gs *. W.
(91) 1962 VI 12-43. Larvae.
(92) 1062 VI Î243 öl Eggs without oil drapHI <083 mm.
(93) 1962 VI 12-0 OV Eggs without dt droplet . 088-0.99 rnrrs.
(94) 1962 W 12-13 Eggs without oi droplet ICO-® mm.
(95) 1962jyi 0-13 Eggs with one oit droplet. 1ÛCMS rnrn ..
(96) SOI. 1962 VI 12-13.
(97) (s. 19Ç2 VI 12-13 Moiva moha : 1 Trisoptems minutus : @ Boregadus esmarki : 3 Meianograrrmus aeghrfirxjs: © Gadüs morrhua : (5) . PoBachius pottacfmjs : g _PoHachkê virens :<7>. Larva». X. .. I.
(98)
(99) 1962 VI Larvae. 12-13.
(100) 1962. VI. 14-15. R/V Thetis.
(101) 1962 VI K-15 Echo soundings R/V Thetis.
(102) 1962 Vi 14-15 Sprattus sprattus. ■Eggs .. 57'.
(103) S62 VI 14-15. Sprattus sprattus Larvae.
(104) 1962 VI 14-15 Scomber scambrus.
(105) 1962 VI. 14-15. Scomber sconnhrw Larvae.
(106)
(107) SS2 V! V.-15. Onos sp. Larvae.
(108) VI 14-15 witout oil droplet.
(109) I9ß2 VI 14-15. ägs witoot oil droplet Q88-099 rpm. 73. d'.
(110) 196? VI K-15 Egps without oä dropiet 100-115 urn.
(111) 1962 VI. 1445. £gt$s without dl droplet " >1B ' mm .. 57“.
(112) 196^ VI 14-15 Eggs with one oil droplet 100-1.15 mm,.
(113) 1962 Vt 14-15 Bggs Transparent yolk.
(114) Merlangius metiangus Larvae. 57'. "T. r:.
(115) 60“. 60. 59“. k <3S. 1962 VI,., 14-15 Mva rrctva : 1 Trisopten/s minutus : @ Boreegådaus esmarkt : 3 Melanoÿrammus aegtefinus. © Saabs rnörrhua : {51 PollaMus poiladwus : @ PoUachkà virens :<7> Larvae. 58“. 57*.
(116)
(117) 1962 V! 14-15 Limanda limanda. Larvae.
(118) 1962 tfl tt-15 Reuronectes platessa : 1 Gtyptocephalus cynogiossus : •. Psftta maxima : @ fJicrocMnis hoscanhn :«5>. - Larvae. 1.
(119)
(120) R/V Skagerak.
(121)
(122) >1962 VI »30 26-28 cp nçSprattus sprattus. .. k. à.
(123)
(124) .. !. 18-20 26-28 Larvae. ... .. 3..
(125) X?. C. $1962 VI 58-20 26-28 ^Onos Sfx. $089-099 mm 'Eggs. ..
(126) 60°. 59°. % 1962 V! «-ao 26-2S bOnas sp. I larvae. 58“. 5T.
(127) 1962 VS 18-20 26-28 Êggs witout oi! droplet 7 <088 mm.
(128)
(129) 862 Vt B-20 26-28 Eejgs without dl &®çM ~ KXHB mm. .....
(130) 1962 V! B-2Q 26-23 Eggs without oil droplet 1 >tß mm :.
(131) 196? V! 16-20 26-28 Eegjs with one di dropsei. -100-115 mm. 571.
(132)
(133)
(134) 12'. 1962 VI »4» 26-28 'Moiva moiva : 1 Trisopterus rrmutus :. g). Boreogàdus esmarki: 3 Metanogrammus aegfefïr, Gadus morrhua:Vô) Pottactius potladvjs : § Pottactmjs vr«ns.«7>. -arvae J>. <D2. -. &.
(135) Y 962 Vi 18-20 26-28 , °Å Ca/lionymus sp. : 1 | ^\Mauroliajs sp. : @ «{CSotea vulgaris : 3 -\Eggs i. 57.
(136) '«62 VI 18- 20 3B-28 ~:Lmarxla limanda.
(137) 19& VI 18-20. 26-28. { Ti. Pteuranectss pätessa : t Piatichthys flesus : (2) Gfyptocephaliis cyncglossus : _3 Pselta maxima © Mkmctm& boscanion : <S> Larvae, ff7.
(138) ç j ----- 'V.
(139) 1963 V! 1W4 17-B R/V Skagerak.
(140) 60*. 59°. 1363 Vi V~'A r/-S Spraitus sprattus ■Eoßs. 58°. 57*.
(141) 5963 VI 5ÊB4 17-S.
(142) SS Vt «H4 rws Sprattus sprattm ■ hums-.
(143) B63 V! 10~K TM9:. l«ngîh,Waà number'.
(144) 863 V! *H4 TH9 Arrmxfytes sp. :1 Ckjpm harerçut. :Z.
(145) 60. 56”. 57“.
(146) .Scomber scombrus.
(147) S63 V! th% tH9 Scomber sccmtmis Lengih, tatet nurrker.
(148) 863 VI 10-tt t7-8 Onos sp. JSggs ..
(149) 8. ‘. 9'. 10. 1« « 0-14 1ÎM9]. Qws sp. ,Larw». f.
(150)
(151) 863 VI O-V. 17-19 E^gs witha.il o* cJropfrt.
(152) without oildroptet.
(153) 2.
(154) 1963 VI tH4 tM9 n ! Eggs with one oii droptefc.
(155)
(156)
(157) TzzE. ^ «3 ïl M TH9 W Caltmymis sp : ! “> Mauroltctts sp. : @. Sok@ n/&aris : 1. Vs®5 ,.
(158) föS3 VI «Hi. 1H9 Limanda limanda Larvae.
(159) 1963 VI tW. 17-B .fts Pteumrnctes pfefes&a :t. jReftfc^rS Gtyptnatphahs q/nogkasus :1 ft?**» maxima?©' Mkmdmjs basest**) :<$> ' larvm V * >.
(160) 8* 60'. T:.rr”T. TTT. 9'. ■rrm. Iff. mri. IT. 12'. TTÜ. 60”.
(161) «3 V ÜH7 2>ei R/V Steagwak.
(162) i GO. SS'. iJ57*.
(163)
(164) m?SS3 V ts-t7 20-2? f *lAnmoelytes sp. : ! : <£" dupes harmgus, : 2, j ~Js Larvae L. 57.
(165) 60*. 59'. S63 V B-Î7 20-21 Scomber scombrus. 58'. 57*.
(166) 1963 V 1H? 20-21 Scomber seamftms.
(167) 063. v s~t; ana. Crm sp..
(168) 60°. 59’. Onos sp. Larvae. 58’. 57’.
(169) 1963 V B~t7 20-21 <» Eggs without oil dsstptet. 20-21. £.
(170) B63 V B-17 20-21 « Eggs without dt droplet.
(171) 083 V. ft. SH7 20-21. Eggs without oft doptet. i. ?s?.
(172) Bçgp *®frout oä «toftet.
(173) 12'. «3 ¥. H 2W.
(174) 1963 v 6-î? 20-0 Mterlangitjs rn&rimgus Larvae.
(175) Sö_y «H7 20*2! 'Ùa&S'motet-A Trisopterus mtnutm. GmAtsKJ manias : ®) V. , .. f%8*chkj&. gg. pattxhiis : g Mmehius virera :<>. 57.
(176)
(177) 5. p v W? 20"21. J* UmsrxSa limanda.
(178) 60. tsea v m m. i. r. >. .. *. PleuratKCtos ptstessa : 1 ■ ^ £&sfib*#s« teas : gi. . ptyptodéghäm qmegtessM : 1 ftsfte rrmàm :®. . Mknchfus bssssenm : «5» larvs». *. •.
(179) ISO ï M M Laörktan : © Cyslopteridsn : 2 Gcbikiae : 3_ ; Larvae,. 57. ’.
(180) 60*. 59*. 1963 VI. »-27. 58*. 57*.
(181)
(182) S63 VI Sprattus sprattys.
(183)
(184) 1883 vi. %-rr. Scombtr sambrus.
(185) rTTTTTTTTTTT. V.
(186)
(187) T* !—r. Egga wjttOi uü «topte*.
(188) rrrm—r~i. 863 VI %rtt n Eggs without ci dw^tet. 12‘.
(189) 12'. rzzE. SS r%. Vi. »~2?. without oél droptet.
(190) 12‘. T:"irm—i—r. 1363 ft. VI. Mr-27. .ËRJ* wilhout «1. dfoptel; !.
(191) BG^VS. &■%>. Eggs wth arm o& droplet.
(192) 12'. TT. 8© VI 31-27 Marlangkts rmrbmQus. ■lèrvm.
(193) -i.L'u. Mte malm : 1 Arwagasta eamsrki : 2. G®te mànhua : 05) Machkß peäxhim : § ■MSsehiu$\éms :*7* L*rws. zn.. i.
(194)
(195) m VI 2M7 Mmndtt limmita. l«va».
(196) ffîMi&tfihys (htSUS : @ epms&mtet : j?. ft»#<a rftexm» : <§) ' Mknxhirui boxåritan :*5» ..ÙKW~V. --- p.
(197) Süf. t. 'i....r..T ' I “-T'-'TZ.J.................. !... i. 10*. i. i. . . ~r. i. i. i. 12*. 60*.
(198)
(199)
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