Fishery bulletin of the Fish and Wildlife Service - NOAA

BIOLOGY OF THE ATLANTIC MACKEBEL 219
TABLE 18.—Record of oblique hauls made with a 8-meter net during cruises VIII and IX, 198S
Locality
Martha's Vineyard:
П
CRUISE vin
Montauk:
I
IV
Shinnecock:
I
II
New York:
I
ц
Ill
V
VI
_
Atlantic City:
II
in -
rv
Cape May:
III
rv
COTISE IX
Boston' II - .- --
Cape Cod Bay: !..
Chatham: П -
Western fkyirger TTT __ _ _ _ _ _ _ .. _ _
South Channel: IV - -
Martha's Vineyard:
I
П
Montauk:
I
Ш
Shinnecock* I - _• ....
New York- П - ...
Station
1283
1282
1276
1259
J275
1274
1270
1271
1272
1260
1261
1269
1262
1263
1264
1265
1266
1287
1268
1319
1318
1316
1316
1328
1308
1307
1303
1302
1288
1290
1294
1298
Date
July 1
do
June 25
June 29
do
June 28
June 29
do
do
June 28
June 26
do
do
do
do
. do -
July 23
July 22
---do
do
July 24
July 21
do
July 20
- do
July 16
July 17
July 18
do
Hour
20
16
7
11
13
18
21 2724
16
20
2447
18
21
24
5
13
17
13
23 84
Q
1
13
10 3
18
Depth
(4)
28
27
21
28
26
34
29
25
24
21
25
17
14
39
34
34
22
33
25
43
27
31
31
40
63
72
39
49
18
38
18
23
Time
(6)
1,440
1 600
1 620
1,740
1 260
1 620
1 440
1,440
1,440
1 740
1 440
960
780
1,680
1 800
1,380
1,260
1, MO
1,660
2,460
1,260
1,800
1 920
1 740
1 980
1 680
2,280
1,620
960
1,800
1 500
1 380
Flow
(10)
1,128
1,075
2 349
1,131
987
729
1,128
1,636
1,728
2 626
1,832
704
672
812
726
667
987
884
1,684
2,050
604
1,440
1 162
841
1,661
688
1 000
1,053
980
1,080
1,925
1,021
S
Factor
(12)
NOTE:—The above table does not Include hauls falling to take mackerellarvae. .For allst öl these see foot of table 10 and table 20.
RECORDS OF TOW NETTING AND CATCHES OF 1932
Since the methods of reducing catches of eggs and larvae to the standard basis
on which the conclusions of this paper rest, are, to a considerable extent, novel, and
therefore have not stood the test of usage, and since techniques may be altered in the
future in such a way as to require recalculation of present results to provide material
for comparison, there are given in tables 17 to 20, inclusive, the more pertinent of the
records of the cruises of 1932.
Tables 17 and 18 give the conditions under which the hauls were made, and the
relation of the data to each other may be understood by consulting table 15. Similarly,
tables 19 and 20, giving the counts of examined portions of catches and the standardized
total catches, were based on computations illustrated by table 14.
Since the data on hydrographie conditions have already been published (Bigelow,
1933, pp. 124-128 and 131-133) they are omitted from this paper.
0 135
136
048
.135
141
266
137
.088
.074
043
083
131
131
.268
256
.268
119
.198
.080
112
282
.114
142
250
214
680
110
.258
.101
194
050
122