Zooplankton data sheets. 1955 - Pass 2 (Monterey Bay Historical Zooplankton Project)

Complete

Page 1

Date: [No Date]

Wet settled volume (mL)

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1 Eutonina indicans

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2 Hydromedusae

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3 Stephanomia

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(blank):

4 Muggiaea sp.

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(blank):

5 Aurelia aurita

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(blank):

6 Chrysaora melanaster

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(blank):

7 Pelagia panopyra

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(blank):

8 Pleurobrachia bachei

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(blank):

9 Beroe cucumis

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10 Beroe forsakli

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(blank):

11 Cladocera

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12 Calanoid copepods

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13 Non-calanoid copepods

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14 Hyperia medusarum

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15 Mysid larvae

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16 Euphausids

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17 Petrolisthes larvae

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18 Zoea larvae

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(blank):

19 Sagitta bipunctata

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(blank):

20 Oikopleura dioica

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(blank):

21 Doliolum sp.

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4:

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(blank):

22 Fish eggs

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(blank):

23 Fish larvae

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(blank):

24 Small unidentified orgs

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NOTES, MISCELLANEOUS: [Page consists of procedure description, including lat./long. of sta 1-6 and depth of sample. Will transcribe as best as I can]

Plankton Survey of Monterey Bay . . . Contract with CoopSardRes.

Procedure at sea:

At six stations: ( 36°37.5'N , 121°53.7'W [sta]1 33 meters depth of cast 36°41.8' , 121°57.3' [sta]2 53 36°46.2' , 122°01' [sta]3 53 36°51.6' , 122°00.1' [sta]4 53 36°56.1' , 121°59.2' [sta]5 18 36°52.2' , 121°55.2 , [sta]6 53

a 200 foot Bathythermograph is lowered to the appropriate depth, a Nansen bottle is attached to the wire to take a sample[crossed out] water sample at 15 meters; a surface water sample is dipped directly into the sample bottle; sueface[sp?] temperature is taken with a bucket thermometer. Two plankton samples are taken: one with a half-meter net which is lowered verically[sp?] 15 meters and, ten meters of wire are recovered obliquely, and with the remaining five meters of wire out, the net is hauled just below the surface of the waterfor[sp]? one minute by a stopwatch; then the net is recovered. A trucated [sp?] phytoplanton[sp?] net (1/4 meter) is lowered 15 meters vertically and recovered verically[sp?] as soon as it has sunk to proper depth. The plankton samples are immediately preserved in formaldehyde for determination of plankters at[crossed out] on shore. Data is recorded for the completion of Oceanographic Log Sheet -B, using the code in Hydrographic Office Publication 606-C

Notes are made at each station concerning the the plankters observable along with the birds and mammals present. Notes are made of any burds [sp?] or mammals noted particularly Black footed Albatross, whales, porpoise, and pinnipeds, or any unusual surfce[sp?] foms[sp?] between stations.

Last edit over 3 years ago by Soazdrmm

Complete

Page 2

Date:

Wet settled volume (mL)

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(blank):

1 Eutonina indicans

1:

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(blank):

2 Hydromedusae

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4:

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(blank):

3 Stephanomia

1:

2:

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4:

5:

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(blank):

4 Muggiaea sp.

1:

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4:

5:

6:

(blank):

5 Aurelia aurita

1:

2:

3:

4:

5:

6:

(blank):

6 Chrysaora melanaster

1:

2:

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4:

5:

6:

(blank):

7 Pelagia panopyra

1:

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4:

5:

6:

(blank):

8 Pleurobrachia bachei

1:

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3:

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5:

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(blank):

9 Beroe cucumis

1:

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(blank):

10 Beroe forsakli

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(blank):

11 Cladocera

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(blank):

12 Calanoid copepods

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(blank):

13 Non-calanoid copepods

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14 Hyperia medusarum

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(blank):

15 Mysid larvae

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16 Euphausids

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17 Petrolisthes larvae

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18 Zoea larvae

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19 Sagitta bipunctata

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20 Oikopleura dioica

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21 Doliolum sp.

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22 Fish eggs

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23 Fish larvae

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24 Small unidentified orgs

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NOTES, MISCELLANEOUS: Method used in the qualitative examination of 1/2 meter net hauls, towed for one minute. i.e. Zooplankton sampling.

It is understood that occasional large organisms are not included in the quantitative determination, unless they are at that time an important part of the plankton. For example, three Pleurobrachea bachei would not enter into the quantitative estimate of the sample which had ten ml of copepods.

In the qualitative determinations, large organisms are not included in the same way. Their presence is indicated after the estimate of the rest of the sample has been made.

The volume and not the number of individuals present of a particular group is estimated, except where there are less than five individuals. In this case, the number of individuals of the group is indicated.

The numbers running lengthwise on the graph paper represent the following genera or groups: [handwritten 1-] 1. Pleurobrachea bachei [handwritten 4-] 2. Eutonina indicans [handwritten 10-] 3. Doliolum sp. [handwritten 8-] 4. Sagius bipunctata [handwritten 6-] 5. Stephanomia swimming bells or pneumatophores [handwritten 5-] 6. Hydromedusae [handwritten 7-] 7. Muggaeia sp. [handwritten Monophyidae] [handwritten 15-] 8. Mysis larvae [handwritten 16-] 9. [crossed out Crab] (Petrolistes) larvae [handwritten 17-] 10. Zoea ([crossed out Emerita] larvae [handwritten 9] 11. Oikopleura dioecia [handwritten 14-] 12. Hyperia medusarum 13. Fish eggs are indicated by normal indicated by hyphens. [handwritten 12-] 14. Calanoids [handwritten 2-] 15. Beroe cucamaria [handwritten 3-] 16. Beroe forscalii [handwritten 11-] 17. Cladocera [handwritten 8-] 18. Aurelia (or fragments) [handwritten 9-10-] 19. Chrysaora (in pencil), or Pelagia (in ink) [handwritten 13-] 20. Copepods, invertebrate eggs, and very small unidentifiable material.

Each genus or group may by this method represent up to 100% of the sample (by the shading in of the entire space allotted to it), or any intermediate amount. If there are more than five individuals of a group they are figured in as a part of the total sample (even if they take up fifty percent or more of the volume).

The dates when the samples are take are indicated on the left margin of the page.

All percentages are visually estimated, and are of value only the show the trends and are to be used in conjunction with the quantitative data.

The volume of each group of genus is indicated by the number of vertical rows shaded in the space allotted it. When the number of individuals is five or less, it is so indicated by a single vertical line being drawn on that vertical central line of the space alloted; each vertical space so occupied representing on individual.

Last edit over 3 years ago by Vstewart

Complete

Page 3

Date:

Wet settled volume (mL)

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1 Eutonina indicans

1:

2:

3:

4:

5:

6:

(blank):

2 Hydromedusae

1:

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4:

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(blank):

3 Stephanomia

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(blank):

4 Muggiaea sp.

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(blank):

5 Aurelia aurita

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(blank):

6 Chrysaora melanaster

1:

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4:

5:

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(blank):

7 Pelagia panopyra

1:

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4:

5:

6:

(blank):

8 Pleurobrachia bachei

1:

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5:

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(blank):

9 Beroe cucumis

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5:

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(blank):

10 Beroe forsakli

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(blank):

11 Cladocera

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12 Calanoid copepods

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13 Non-calanoid copepods

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14 Hyperia medusarum

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15 Mysid larvae

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16 Euphausids

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17 Petrolisthes larvae

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18 Zoea larvae

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19 Sagitta bipunctata

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20 Oikopleura dioica

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21 Doliolum sp.

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22 Fish eggs

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23 Fish larvae

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24 Small unidentified orgs

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NOTES, MISCELLANEOUS: [This page includes a list of the organisms and hand drawings of each organism] 1) Pleurobrachea baehei % 2) Eutonina indicans % 3) Doliolum % 4) Saggrita [bysunctata?] % 5) Stephanomia swimming bells % 6) Hydromedusae # 7) Muggaeia % 8) Mysis larvae % 9) Crab Petrolestes? larvae # 10) Zoea larvae Emirita? # 11) [Oikoplaura?] deoecia % 12) Hyperia medusarum (red) # 13) Fish eggs % 14) [Colanoid?] (Copepod) 15) [Beroe?] [cuamaria?] # 16) [Berae?] forscalii # 17) Cladoceres One eyed shrimps # 18) [Aurelea?] 19) [Cluysaora?] in pencil - [Pelagin?] [in ink?] 20) Copepods [goo?] % 21) Thalia democratica

Last edit over 3 years ago by Vstewart

Complete

Page 4

Date: 4-11-55

Wet settled volume (mL)

1: 12

2: 2

3: 2

4: 6

5: 1

6: 6

(blank): 29

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1 Eutonina indicans

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2 Hydromedusae

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3 Stephanomia

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4 Muggiaea sp.

1: 10

2:

3: 10

4: 5

5:

6:

(blank):

(blank): 25

5 Aurelia aurita

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(blank):

6 Chrysaora melanaster

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7 Pelagia panopyra

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8 Pleurobrachia bachei

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(blank):

9 Beroe cucumis

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10 Beroe forsakli

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11 Cladocera

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(blank):

12 Calanoid copepods

1: 65

2: 20

3: 90

4: 75

5:

6: 85

(blank):

(blank): 335

13 Non-calanoid copepods

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14 Hyperia medusarum

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15 Mysid larvae

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16 Euphausids

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17 Petrolisthes larvae

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18 Zoea larvae

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19 Sagitta bipunctata

1: 10

2:

3:

4: 20

5:

6: 10

(blank):

(blank): 40

20 Oikopleura dioica

1: 5

2:

3:

4:

5:

6: 5

(blank):

(blank): 10

21 Doliolum sp.

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22 Fish eggs

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23 Fish larvae

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24 Small unidentified orgs

1: 10

2: 80

3:

4:

5: 100

6:

(blank):

(blank): 190

25: Prya

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(blank): 1

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NOTES, MISCELLANEOUS:

Last edit over 3 years ago by guest_user

Complete

Page 5

Date: 10-II-55

Wet settled volume (mL)

1: 45

2: 10

3: 2

4: 5

5: 0.5

6: 25

(blank): 88

(blank):

1 Eutonina indicans

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(blank):

2 Hydromedusae

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3 Stephanomia

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4 Muggiaea sp.

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(blank):

5 Aurelia aurita

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(blank):

6 Chrysaora melanaster

1:

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4:

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(blank):

7 Pelagia panopyra

1:

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(blank):

8 Pleurobrachia bachei

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(blank):

9 Beroe cucumis

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(blank):

10 Beroe forsakli

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(blank):

11 Cladocera

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(blank):

12 Calanoid copepods

1: 95

2: 95

3:

4: 85

5:

6: 15

(blank):

(blank): 290

13 Non-calanoid copepods

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14 Hyperia medusarum

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15 Mysid larvae

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16 Euphausids

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17 Petrolisthes larvae

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18 Zoea larvae

1:

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19 Sagitta bipunctata

1: 5

2: 5

3:

4: 5

5: 30

6: 15

(blank):

(blank): 60

20 Oikopleura dioica

1:

2:

3: 20

4: 5

5:

6: 10

(blank):

(blank): 35

21 Doliolum sp.

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(blank):

22 Fish eggs

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5:

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(blank):

23 Fish larvae

1:

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3:

4:

5:

6:

(blank):

24 Small unidentified orgs

1:

2:

3: 80

4: 5

5: 70

6: 20

(blank):

(blank): 175

25: Pteropod mollusc

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6: 40

(blank):

(blank): 40

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(blank):

NOTES, MISCELLANEOUS: - 25 Pteropod mollusc has two data entries: No. = 1, % = 40

Last edit over 3 years ago by jjolly

Zooplankton data sheets. 1955 - Pass 2

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