716 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [34] 
During the period from 1730 to 1852 ten records were made of all the 
oyster-beds of the Schleswig-Holstein sea-flats. If from these records 
the numbers of all the marketable and all the medium-sized oysters are 
taken and added together, we will have a series of very different totals, 
showing no particular general law. But if for each of these reports the 
proportion of marketable to medium oysters is taken, then we will 
arrive at the surprising result that this proportion fluctuates but very 
slightly during all the records. 
The following table gives a summary of the marketable and medium 
oysters recorded as caught during each of the ten investigations. From 
these numbers I have reckoned for each record the proportion of medium 
oysters to every thousand of those which were full grown. 
Ho ae | 
Se ie 
eet ea oN a | 
: = Ok oa 
Year of record. Ee eae hes | Propertion of market- 
x He Sa able to medium. 
| S bey = CH 
BHS | see 
4a A 
TTT ae ae MeO nat Wall OEE PEE 5, 394 2, 602 1, 000 48h 
PBA SE clo DENG 2 ps SAN RDS. iy ee EER 16, 770, 5, 205 | 1, 000 310 
TE ei Seine ERROR O SCAG REIS M Ee crtice ound aetna at motley . 7, 185 | 3, 007 1, 000 418 
DG A Ale ee oe a oe Mirictacitate ave etias Seen ena 6, 793 3, 833 | 1, 000 490 
IL Hyatt ea eta eae oe EL It EN Soh eR meee Let OY 8 2,078 1,006 | 1, 000 484 
TOO ee Sie ae ho acre rat ta eicctane re aes, nike Venetia en ate 2, 705 831 | 1, 000 307 
AUST RYE ea tA oR Seer Ree tens ors Re Ld See ere 2, 828 1, 087 | 1, 000 388 
UEBO seen Lode acorn tet see oder eee ocala 1, 956 197. | 1, 000 417 
GSO Ee Saaton sdeicioinis se able e Bisa das, o omjsie ease mie miata semis 3, 272 | 1, 552 | 1, 000 440 
WB GRE Ssh Sa Se ne ok scene win sas ajee inte Se ae nie eee ee 3, 584 1, 673 | 1, 600 473 
a Wa he ee eR RR OA Ve NCI. Saute a MIR ROU dN pest) STR led LO, | 10, 000 4,213 
ae s a | a 
Mean proportion: J: css. caso occemonsetteceme St) aaa se eee Ce Sere ee 1, 000 421.3 
The following table gives the quantities of oysters which were taken 
during these investigations from two of the largest and most productive 
beds of the Schleswig-Holstein coast, the Huntje and the Steenack 
Banks: 
Huntje. Steenack. 
Year of record, | EE ot a =a ] 
Marketable. | Medium. | Marketable. | Medium. 
Filla’ a Sear a ft ih (ea! 
DEUS Se Cane Pa Sey ROC RR PNA R TC. 355 164 158 | 69 
TPS Y heat MESO by es tA ey Seep i 1,353 874. 465 90 
TAPED) es Sen La AE eR RPS TA oR Geld PR ISHED) Ney eu 323 158 26 110 
LAFRSKGSS Ea, eel bac ine Re ut aL pent ee eH LACE ESTA EL 736 99 149 35 
TUPI eres, Sete p NCS ar. pak AAG eM ee dene UO lean 931 66 607 197 
1795 Fa Nt ates ree are ets ete ee iais tote eth ati Slee ee 87 | 461 261 106 
TOON Rem NER ACB he TL 928 ah, Sa 183 | 119 | 236 56 
TISSt)S etd = Uae ta MRC op 363 | 173 | 53 | 79 
IESE U Ee Se cyt Aes ee 40 | 3 | 11 | 4 
TE aodno last de dusedecaos sek 6 He Be ReBenN Asem mB Mee 128 64 136 | 58 
Fatale es ees arya scl FS ona 4,499] 2, 181 2, 082, | 804 
IPT OpPOLti One mes e ce ot eeh-ssise sections ete 1, 000 | 484 | 1, 000 | 385 
The proportion of marketable to medium-sized oysters is thus seen to 
be almost the same upon single beds as in a mean of all the beds taken 
together. 
