Olav A. Ormseth
Alaska Fisheries Science Center
Nearshore fish survey in northern Bristol Bay, Alaska conducted from 2009-07 to 2009-08 by Alaska Fisheries Science Center, Resource Ecology and Fisheries Management division
Unpublished material
tabular digital data
The project consisted of a nearshore fish, invertebrate, and habitat survey in northern Bristol Bay, Alaska. A 32-ft. gillnet vessel, the F/V Willow was chartered for the survey, and we also used a 20-ft. aluminum skiff with 90-hp. motor for shallow water work. The survey was staged out of Dillingham, Alaska and took place from July 26-August 8, 2009.The main gear types used during the survey were a beach seine and a bottom beam trawl. A surface pair trawl (towed by the vessel and the skiff) was deployed in one location. Using these gear types, we sampled from the shoreline to 17 m depth, as well as surface waters ~1 km from the shoreline. Catches were sorted to species, enumerated, and when possible weighed using spring scales. Length measurements were taken for most species. Voucher specimens were preserved in 10% formalin for confirmation of species identification. A small number of samples were frozen for age and energetics analysis . Photographs were taken of most species. Small, datalogging conductivity-temperature-depth recorders (CTDs) were deployed on the trawl gear, and also placed on temporary moorings in several locations to study fluctuations in temperature and salinity over tidal cycles. We also recorded habitat variables at beach seine sites according to the methodology used in the Nearshore Fish Atlas of Alaska. During July 26-August 1, 2009 sampling was conducted in Nushagak Bay. High wind and waves hampered the sampling throughout this entire week and largely determined possible sampling locations. Two days were completely lost due to weather. On August 3 we traveled from Dillingham to the west side of the Nushagak and from August 4-8 sampling was conducted along the Nushagak Peninsula and in Kulukak, Nunavachak, Ungalikthluk, and Togiak Bays. During most of this time we experienced high winds but they did not hamper the sampling to the same degree as in the Nushagak. On August 8 we traveled back to Dillingham.
Provide baseline data on the distribution of fishes and fish habitat in northern Bristol Bay.
200907
200908
ground condition
none
northern Bristol Bay, Bering Sea
-161.0
-157.8
59.4
58.2
ISO19115
Biota
Environment
Oceans
none
Alaska
Bering Sea
Bristol Bay
none
summer
none
CTD
abundance
distribution
beach seine
habitat
water temperature
none
invertebrates
fish
Kingdom
Animalia
Family
Cottidae
sculpin unident.
Family
Hexagrammidae
greenling unident.
Family
Osmeridae
smelt unident.
Family
Salmonidae
salmon and trouts unident.
Family
Stichaeidae
prickleback unident.
Genus
Limanda
Species
aspera
yellowfin sole
Genus
Platichthys
Species
stellatus
starry flounder
Genus
Pleuronectes
Species
quadrituberculatus
Alaska plaice
Genus
Occella
Species
dodecaedron
Bering poacher
Genus
Clupea
Species
pallasi
Pacific herring
Genus
Eleginus
Species
gracilis
saffron cod
Contact Point Of Contact for data request form.
User must read and fully comprehend the metadata prior to use. Applications or inferences derived from the data should be carefully considered for accuracy. Acknowledgement
of NOAA/NMFS/AFSC, as the source from which these data were obtained in any publications and/or other representations of these, data is suggested.
National Oceanic and Atmospheric Administration (NOAA) Alaska Fisheries Science Center (AFSC) Resource Ecology and Fisheries Management Division (REFM)
mailing and physical
7600 Sand Point Way N.E., Bldg. 4
Seattle
WA
98115
USA
not available
olav.ormseth@noaa.gov
http://www.afsc.noaa.gov/metadata-images/REFM/SSMAnearshore_bbay.PNG
Bristol Bay 2009 sampling locations.
url
Funded by NMFS Essential Fish Habitat funds.
Access
Fish IDs verified/corrected by AFSC taxonomists using voucher specimens collected during the study.
Relational database, checked for duplicate records, etc.
No major ommissions, just occasional missing data.
NA
Unknown
point
BBay_09_haul
NA
AFSC
ID
Record identifier automatically designated by Access when record is entered. NOT the primary key.
AFSC
1
38
haul
Unique haul identifier. B = beach seine, T = beam trawl, ST = Kodiak trawl towed on surface.
AFSC
unknown
gear
Type of gear used. Trawl = 3.1 m beam trawl; bch_seine = 37 m beach seine; surf_twl = 6.2 m Kodiak pair trawl.
AFSC
unknown
date
Date of haul.
AFSC
200907280000
200908070000
locale
General area in northern Bristol Bay where the haul occurred.
AFSC
unknown
subarea
Area division within each locale.
AFSC
unknown
location
Geographic feature associated with each haul that can be identified on the relevant NOAA nautical charts.
AFSC
unknown
habitat
Basic habitat definition.
AFSC
unknown
latitude
Latitude in decimal degrees.
AFSC
58.50945
58.906
longitude
Longitude in decimal degrees.
AFSC
-160.28377
-158.46507
depth_ft
Bottom depth in feet.
AFSC
6
50
exposure
For beach seines, degree to which beach was exposed to wind and wave action.
AFSC
unknown
vegetation
For beach seines, type of vegetation present in the beach seine area.
AFSC
unknown
scope_ft
For beam trawls, length of towline deployed.
AFSC
60
240
scope_ratio
For beam trawls, ratio of scope to bottom depth.
AFSC
4.77272727272727
13.7142857142857
diver
Serial number of Schlumberger CTD-Diver ( conductivity-temperature-depth recorder) deployed at haul site.
AFSC
unknown
start
Start time of haul. Trawls = when trawl was fully deployed; beach seines = beginning of seine deployment.
AFSC
189912300830
189912302040
stop
Stop time of haul for trawls. This indicated the time that haulback began.
AFSC
189912301010
189912301955
set_quality
General indication of the success of the haul.
AFSC
unknown
comment
Comments section.
AFSC
unknown
BBay_09_length
NA
AFSC
ID
Record identifier automatically designated by Access when record is entered.
AFSC
1
2478
haul
Unique haul identifier. B = beach seine, T = beam trawl, ST = Kodiak trawl towed on surface.
AFSC
unknown
common_name
Premature end of data in tag attr line 358
Premature end of data in tag detailed line 333
Premature end of data in tag eainfo line 138
Premature end of data in tag metadata line 2
Common name (Alaska/ North America) of the captured species.
AFSC
unknown
age_class
Estimate of life stage by size and/or appearance (i.e. actual age was not determined).
AFSC
unknown
Premature end of data in tag attr line 453
Premature end of data in tag detailed line 408
Premature end of data in tag eainfo line 213
Premature end of data in tag metadata line 2
total_length
Total length in mm.
AFSC
10
535
fork_length
Fork length in mm.
AFSC
17
498
BBay_09_species_comp
NA
AFSC
ID
Record identifier automatically designated by Access when record is entered.
AFSC
1
418
haul
Unique haul identifier. B = beach seine, T = beam trawl, ST = Kodiak trawl towed on surface.
AFSC
unknown
common_name
Common name (Alaska/ North America) of the captured species.
AFSC
unknown
age_class
Estimate of life stage by size and/or appearance (i.e. actual age was not determined).
AFSC
unknown
scientific_name
Binomial nomenclature of the captured species, as of 2012.
AFSC
unknown
count
Number of individuals captured.
AFSC
1
11400
BBay_09_temp_sal
NA
AFSC
ID
Record identifier automatically designated by Access when record is entered. NOT the primary key.
AFSC
1
38
haul
Unique haul identifier. B = beach seine, T = beam trawl, ST = Kodiak trawl towed on surface.
AFSC
unknown
ave_temp
Mean bottom temperature (degrees Celcius) at haul location.
AFSC
11.7615384615385
14.4054054054054
ave_sp_cond
Mean bottom specific conductance (mS/cm) at haul location .
AFSC
10.3633219016902
42.7084739712778
ave_psu
Mean bottom salinity (psu) at haul location.
AFSC
6.52889279806482
26.906338601905
20151209
National Oceanic and Atmospheric Administration (NOAA) Alaska Fisheries Science Center (AFSC) Resource Ecology and Fisheries Management Division (REFM)
mailing and physical
7600 Sand Point Way N.E., Bldg. 4
Seattle
WA
98115
USA
not available
AFSC.metadata@noaa.gov
FGDC Biological Data Profile of the Content Standard for Digital Geospatial Metadata
FGDC-STD-001.1-1999