John Sammons, August 3, 2005


NOAA Teacher at Sea
John Sammons
Onboard NOAA Ship Albatross IV
July 25 – August 4, 2005

Mission: Ecosystem Survey
Geographic Region: Northeast U.S.
Date: August 3, 2005

Weather Data from the Bridge

Latitude: 42° 5’ N
Longitude: 67° 28’ W
Visibility: undetermined
Wind direction: E ( 107 degrees)
Wind speed:  12 knots
Sea wave height: 3’
Swell wave height: 0’
Sea water temperature: 14°C
Sea level pressure:  1022.2 millibars
Cloud cover: 30% Partly cloudy,cumulus

Questions of the Day: In what group is the scallop categorized – vertebrates or invertebrates? What kingdom does the scallop belong – monerans, protests, fungi, plants, or animals?

(You may need to use a dictionary to look up these words before deciding the correct answer.)

Screen shot 2014-02-02 at 10.25.09 PM

Yesterday’s Answer: If the sea scallop population were to change drastically, then the population of starfish and crabs might change, too. Other organisms that are in the same community as the scallop are little skate, red hake, yellow tail flounder, and goosefish.

Science and Technology Log:

On Wednesday, the ALBATROSS IV began surveying the western edge of Georges Bank. Typically dense fog, cool temperatures, low visibility dominate the scene. We are currently about 55 miles offshore as we continue to meander between stations and conduct a sampling of the various strata. This morning we caught a dogfish shark in the dredge and took a photo opportunity. It is exciting when a new species (one we have not seen yet on this survey) appears in the dredge. The biggest excitement came when hagfish started to appear in the dredge. These snake-like fish tried to squirm their way off the deck. Several adjustments were made in the trackline (or stations we will visit) to account for time and problems with the tow.

The chart below shows a selected number of species and the total catch weights from July 25 – August 2.

Species Names

Catch Weight (grams)

HAGFISH ATLANTIC

3,230

SPINY DOGFISH

1,560

BARNDOOR SKATE

33,462

WINTER SKATE

152,976

LITTLE SKATE

608,663

SMOOTH SKATE

5,303

THORNY SKATE

6,199

ATLANTIC HERRING

402

SILVER HAKE

116,339

COD

11,498

HADDOCK

59,354

WHITE HAKE

7,140

RED HAKE

399,512

SPOTTED HAKE

310

FOURBEARD ROCKLING

191

AMERICAN PLAICE

30,250

FLUKE

27,660

FOURSPOT FLOUNDER

124,973

YT FLOUNDER

108,054

WINTER FLOUNDER

46,980

WITCH FLOUNDER

15,660

WINDOWPANE FLOUNDER

27,576

GULF STREAM FLOUNDER

9,189

BLACKBELLY ROSEFISH

8

SCULPIN UNCL

18

MOUSTACHE SCULPIN

33

LH SCULPIN

80,691

SEA RAVEN

21,468

ALLIGATORFISH

2

NORTHERN SEAROBIN

47

CUNNER

493

ROCK GUNNEL

75

NORTHERN SAND LANCE

40

OCEAN POUT

68

FAWN CUSKEEL

382

GOOSEFISH

933,330

AMERICAN LOBSTER MALE

34,550

CANCER CRAB UNCL UNSEXED

122,684

STARFISH UNCL

161,477

ASTERIAS BOREAL

242,902

ASTROPECTEN SP

15,623

ICELAND SCALLOP LIVE

450

SCALLOP ICELAND CLAPPER

56

CONGER EEL UNCL

200

SEA SCALLOP CLAPPER

222,600

SEA SCALLOP LIVE

19,863,690

SNAKE EEL UNCL

59

ILLEX SQUID

1,313

OCTOPUS SPOONARM

109

SPOONARM OCTOPUS

200

SCORPIONFISH AND ROCKFISH UNCL

4

UNKNOWN 01

19

1) Order the 10 highest amounts from greatest to least.
2) Order the 10 lowest amounts from least to greatest.
3) Which species has a total with a 9 in the millions place?
4) Which species has a total with a 6 in the ten thousands place?
5) Which species has a total with a 9 in the hundred thousands place?
6) Choose a species to research. Why do you think their numbers are higher or lower than the others are?

Personal Log

A Few Days Left 

With just a few days left before we enter the home port,
We still continue to collect and sample and we sort.
The number of each species catch continues to go up,
We even brought a dogfish in that was only just a “pup”.
What more can we expect to find within the capture net,
From this station to the next one, we’ll take what we can get.