Number of the bottom-animals. 100 stations with 1 sample each, investigated with 0, m2 bottom-sampler, in Thisted Bredning. 11.—13. April 1910. 
=== 




The average number of indivi- 
10 20 30 40 50 60 70 80 80 100| duals at each station (0,, m,3) with 
average error (in the determina- 

















































































































139|134/12/11/11/11|104 104/10/10/10 11/10/10/10/10/54 1211 11/11/11/11/11/11 11/11/104/10/10/10/1010413 11111111 111111/1111/11/11/11/11/114 11111111 11/19/1211 11/11/11/11/11/11/11/10/10/10/10/10/10/84' 8 9/9|8|74/6|7|64/ 66 64/64 6 6 [54 6615/63 7 [44/5 |5|5 [54 4af tion of the averages). 
DE > R i mer I I NI | | (0 I FR JI > = 
| | | | net 
Ah lba se 5 f—1—|—1—|—]—!—|-I- Em En SEES slaa El Fee DR | SI | See | fa] FsEreE Hasle 
Abra nitida .… . —|—|—|—/—]— —|—/— SE ESS EEEEEEEEE FE SS FSENIS SEE File | al | == SE FUE = 
SOE Beladae i|1|1/412]3 lol] Io ale latest l1lalsl—tsloleletelsl | —11]—l1/21 6 all 1] 1/1|2'1—11 |2 6 /1/5/1/3 19/8 2/9 3/4 63 22 6 4 21/13/1625 4 (2919217 —11 (12|- —|3|18|2 —|5 (| 3.6 Ons 
Mya truncata ..…. . i|—11/—|11/11/—|9l1l—| 41 9/-|1]—121313|5|3/—|2'5|8121—141713 3191/8'-16 18 15|4! 741116 |112|4) 112 — i =—|11111|—| (1/2'2/1|2/5|2'2/3/612/4'2 | 6/18 lat 72/2] ali] 1 |) 2ag 0,9 
Gel faselatom EET ET EET ETS At (ilt NA 3/1/1 Eli SE ESS 1 (112|1|4 (213/2/1/412/1/3/117161—|—(2|—I—| 3] Orzy 0,28 
H d BES Æt HÆS HE! SER HE, akt —|— — — —|— |— — Com fam Ge] -—- — —= i == — | i | | | || I —|—|— 
ED Rg 212/21819/91414/2141 2-1 —l2 || 2/7 (1211313 |8|4/5'—/2/2/6]2/4/—|112]—|3/1|—141111—|5|6/11|2|2/2|319|10/12 14 15/10/35 (18 17/22/1910 68/4 |9/17/13/2/4|5/53/2'——11|7/3/7/11——'5|6113|—|2|2 I 2 I—II 4130 049 
Corbula gibba… . —I—|—/|1] 2 |— — —|- —= 1 ml" SBEsSE = fæl 1 FREE ET = i | | —|— je El fe Vræle 
Macoma baltica —|—|—|—1—1—I——— Free Safe | ml BEES DE SE i æ: E= Bee | | FE Eee er eee rele 04,0, 
Cyprina islandica. . —| — |— |] — |—|—I—I— = SIS KE == | | la | | | | | FæTl=! fra] 00 E Oso24 
Mytilus edulis ..… —| — |— |—] — | — |[—I—I—/—! — =111= 4l—— 1 mk == ke læ HE THESE | le el tel El hen: El | je | SE 0ros F 044 
Mytilus modiolus …. — —| — |— |—I—/—I—I—I— — — == Fe == | SEl=l | | FEE == sc | = —I—|— 
Modiolaria discors . - — |—|—|—— | Fez SScE | = | = | FE FBE =| FEE FS 1 = === 012043 
Ostrea edulis .…. == —]I—1— FEE TEE ESF JE] NE fæle = Fre ==] = mel mee | FE le Sø —| Oro £ 099 
Tapes polere rs see 7] 11 | — I—II — mee == RE Em | me ae] TEE HF (77) Ea] (el Eg | | | let US EET 07 
(| | || 
Philine aperta. SES SEE 1/2/2|4/5 2121211|2/51213|—|—|2]1|—l2|21'2 len PU ES ET BET E; 4/1/5|216/4/7/10'2/312/4'1/5/1/2121—|1 1/3|112|—| Til ES ES ED 
Acera bullata …...……. —|—|—|—|— FE ey mee Eee såe == | il i i i | | ill (ol 1 (313/1/21—/1|211/112 En E CY EE Sy at ER 02 Oro 
Buccinum undatum, . — —| — — — 11|—I— —I—|— —|—|— 11 |—/—/—I— | = | I=| | | | ! | ros + 0,02 
Nassa reticulata ..…. FEDE EEN ro En an = | JE 1 É | Ed > la | (ælælElg I—|2| 2| 21/1 11——15/1/1/5/1/213/1|2|—1171|4 —I—|1/1|2 let] 05, +0,7 
Nassa pygmæa...….. = == F= SE la FS ES ce = FE | æ fæle | | | Fm z E Fl 
Trochus cinerarivs .. === — =—|— -— | eje er Fee —| — |— — FRE | | | | | | sæl 2 1 —| Oro + 0912 
Littorina littoren ussnererer -—|—|— — —|—|—!/— === —|(———|——] — |—— | FEE j | | —=—— | | | —|—|—|—1312 ros = 0036 
|| Eg KER! | ræ2| 
Pectinaria belgica …. i] KE) FE HR ER (2 1 GE (71) HELLS) 10 1 0 et —|—16|7/51—1316] 4 |6|—14/8113/10|416/1|9/—|419/1111—11/—|1 3 4|4/4/1/2/4/38/3|1/11/2'4/5/6 2/4 15/10/1521 29 50/53/5226 9 21/17/82 5 |24/—/—1111116|—|3 |11|— == 6.00+ 1-00 
Tube-Worms .,.….... — = —|— — == | == | | —| | —|— | | il ml= ile 6/9 ; 1/21—|—! 4 04 26 
Aphrodite aculeata .. …… | | bg 3 == SEES | [1 —|1 1|—|—/—! 1 | | = = 1 = = JER Yyrr = Vross 
re eV SNEDE SEER RER 31/215/4161213/713171414|3 3/5 /1/6/5/2/6 4/2 (4 /8|7/2|7 [2153/45 3112/44 |6/2 22/41 7|7|4|3/2/2'3|8/34/3|2/1/2|1 55/2 5/3 5 |3|8'83/4/3|9/—' 7/4 —/7|5/4|813/—'7| 4/31 ha] 2 1/7) 4419  0er 
| | | | | | 
Echinus miliaris .… —|—|— HEE | == ER | HUE ER 2 Fl | nm | | mæt 1 12 9|— — — 103500 
Echinocyamus angulo: — = | | | = == | | æn Es! El | | | | (11112111 1/1 Org F Os 
Ophioglypha …..…. 35/6 |—/10/2/61 6] 9 8|1/3/2515 7 —|4 —|5 8/4 12/2 7/4 |—/11 13 12 — 1928/— 18 1111/18 7 12 7 11/8 11/12 6 68/9 16/16|16|8|7|18/18|7|6/11/13/9|2/4113'5/14/8|27|5 5 (17/181101131 717181—/1/5/3/6121411/2121312111—11'—11]—I—I I) 8530 Org 
Asterias rubens — Et SEN = =l mles —— | | (1! FE | | 1] | fat i; 2 i 1i—i2l 0%, 08 
| WJ LL) | | | | | 
Diastylis Rathkii … . re ES = EET ES tret SE BD Eee løj te | FEE) er ae ERR) ideale = ===] Oras 0,02 
Gammarids . 2 É UI= AES fakl! lol li FE | | El | | | == | | | E | | 1 (—|—|—|—1—/—/—) 0,04 + 0so24 
Idothea . Å 4 HE KA boer —= FEER KE 1) Wa (fir VLE RER KA | nen NESEN (Se | (kel ce IF] ER 1E5 | | SEES | za | = stil fad 0,62 014 
Actiniæ, É — -— — a ae =D ell | | | | 
Sponges || I ES EL EEEET | 
ERE ENE EET ES ENE ESS SS SS ESS EEEE==-=— 























































