Fish captures in lakes of the Arctic LTER region Toolik Field Station Alaska from 1986 to present.

Abstract: 

This file contains the fish number, recap number, species, lengths, weights, sex and a list of tissues sampled of fish captured in lakes near the Toolik Lake Arctic LTER site during summers from 1986 to 2009. The file also contains information from gill-netted fish (if any), sacrificed fish, and accidentally killed fish. All dead fish are included, and if their stomachs and otoliths were taken, that is noted also. This file combines previous published yearly files from 1986 to 2009.  See methods for more details.

Project Keywords: 

Data set ID: 

10577

EML revision ID: 

4
Published on EDI/LTER Data Portal

Citation Suggestion: 

Budy, P., Luecke, C., Mcdonald, M. 2014. Fish captures in lakes of the Arctic LTER region Toolik Field Station Alaska from 1986 to present. Environmental Data Initiative. http://dx.doi.org/10.6073/pasta/0330caa9e68965b86c1339747e315b
People
Dates

Date Range: 

Saturday, August 16, 1986 to Tuesday, July 28, 2009

Publication Date: 

Wednesday, January 1, 2014

Methods: 

 Methods: Note that methods varied by year and recording of the specific methods is sometimes sparse.

1986- The fish were captured from Toolik Lake using a 5-panel experimental gill net (panel size 19 mm, 38 mm, 64 mm, 89 mm and 114 mm). The 1986 data is a replication of the previous (1978) Fish and Game gill net survey.

1987- This is a duplication of the 1978 sculpin study.  Basically, three sets of three sculpin traps each at four different habitats of the lake were set for two days.  Each trap was made up of a mason jar with a funnel in the mouth. The .5 meter habitat was rocky, 1.5 m was rocky, 5 m was near the rock - mud interface, and 7 m was all mud.

The various species of fish were removed from lake I6 using a five-panel experimental gill net (mesh sizes of 3/4, 1, 1 1/2, 2, and 2 1/2 inches).

In NE15 fish were captured from lake NE15 using five-panel experimental gill nets

1988- The fish from 1988 were caught on conventional hook and line gear.

Only lake trout were captured from Lake NE14 using experimental gill nets.  The nets were in the water for six days in 1986 (13 August to 19 August), four days in 1987 (3 Aug. to 7 Aug.), and six days in 1989 (23 June to 26 June, and 2 July to 5 July). All fish were sacrificed.

Sculpins were captured using canning jars with acetate funnels inserted in them (similar in design to some minnow traps).  The sculpin traps were set by boat and placed on the bottom of the lake in a specific habitat (inshore, rocky, rock-mud interface, and mud bottom).  (Roughly) every three days the traps were retrieved and the sculpins, if any, were removed.  The ages of the fish were determined by counting the rings in their otoliths.

1989- The various species of fish were removed from Toolik Lake using experimental gill nets or hook and line gear.  The type of gear is noted in the data file. When using gill nets, the nets were in the water during the time noted in the "comments" column.  Hook and line captures were usually measured, tagged, then released, although some sport fishing was encountered.  These sport catches were measured and as much data was recorded as possible from the fish before they were eaten or iced by the fisherman.

The various species of fish were removed from Lake S6 using conventional hook and line techniques. The species, lengths, weight, and sometimes the sex of each fish was recorded.
Notes: There were two kinds of tag being used: the "juvenile tags" which need to be tied to the fish's dorsal fin, and the "LTER" tags, which are anchored in the flesh with a
plastic gun (similar to the ones used on the grayling in the Kuparuk River). There is also one fish that was caught from S7 that was tagged the previous year from S6.  This is also noted in the comments column of the data file.

Protocol for Lake S6 data in 1989 and 1988: Sculpins were captured using canning jars with acetate funnels inserted in them (similar in design to some minnow traps).  The sculpin traps were set by raft and placed on the bottom of the lake in a specific habitat (inshore, rocky, rock-mud interface, and mud bottom).  (Roughly) every three days the traps were retrieved and the sculpins, if any, were removed.  The ages of the fish were determined by counting the rings in their otoliths. This file describes the sculpins that were captured from Lake S-6 during the summers of 1988 and 1989.  The weights, lengths, and ages of the fish are included in the file.  This data is part of Kristi's masters research under Anne Hershey. Note that some date information is missing.

1990- The various species of fish were removed from Toolik using conventional hook and line
techniques. 

1991-2009- The various species of fish were removed from the lakes using conventional hook and line techniques.  After the fish were tagged, the species, lengths, and weights of  each fish were recorded.  If gillnets were used, the nets were of the "experimental" type and typically set perpendicular from shore.

Notes: In the "Toolik Locale" column, the number (.5, 1.5, 5, or 7) refers to the depth in meters that the traps were set in.  The letter (A, B, or C) refers to which jar in the series of three per depth that the data came from.

Grayling = Grayling (Thymallus arcticus)
L. Trout = Lake Trout (Salvelinus namaycush)
Char = Arctic Char (Salvelinus Alpinus)
Sculpin = Slimy Sculpin (Cottus cognatus)
White fish = Round White fish (Prosopium cylindraceum)
Burbot = Burbot (Lota lota)

The following information is available for all years of data collection contained in this file (1986 to 2009):

Site (LTER site #), Date of capture, Fish ID number, Lake name, Species, total length of fish, fork length, standard length , mass, tag #, recapture number, comments and sampling method.

Additionally the following categories were collected in the indicated years:

1986-1999: Noted if Otolith collected, stomach contents collected, sex of fish, maturity of fish

1986-1995 (not including 1991): noted if gonads were collected and weight

1986-1989: Noted if pectoral fins were taken, age of the fish, total otolith radius, distance our to annuli from previous annuli, if fins were clipped, locality where fish was caught and if scales were removed.

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

This file combines yearly files from 1986 to 2009.  Below is the list of original files.

Fish number, recap number, species, lengths, weights, sex and tissues sampled of fish captured in lakes near the Toolik Lake LTER site during the summer of 1986 (tagging data), Arctic LTER 1986.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, weights, sex and tissues sampled of fish captured in lakes near the Toolik Lake LTER site during the summer of 1987 (tagging data), Arctic LTER 1987.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, weights, sex and tissues sampled of fish captured in lakes near the Toolik Lake LTER site during the summer of 1988 (tagging data), Arctic LTER 1988.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, weights, sex and tissues sampled of fish captured in lakes near the Toolik Lake LTER site during the summer of 1989 (tagging data), Arctic LTER 1989.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, weights and tissues sampled of fish captured in lakes near the Toolik Lake LTER site during the summer of 1990 (tagging data), Arctic LTER 1990.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, weights and tissues sampled of fish captured in lakes near the Toolik Lake LTER site during the summer of 1991 (tagging data), Arctic LTER 1991.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, weights and tissues sampled of fish captured in lakes near the Toolik Lake LTER site during the summer of 1992 (tagging data), Arctic LTER 1992.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, weights and tissues sampled of fish captured in lakes near the Toolik Lake LTER site during the summer of 1993 (tagging data), Arctic LTER 1993.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, weights and tissues sampled of fish captured in lakes near the Toolik Lake LTER site during the summer of 1994 (tagging data), Arctic LTER 1994.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, weights and tissues sampled of fish captured in lakes near the Toolik Lake LTER site during the summer of 1995 (tagging data), Arctic LTER 1995.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, weights and tissues sampled of fish captured in lakes near the Toolik Lake LTER site during the summer of 1996 (tagging data), Arctic LTER 1996.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=315

Fish number, recap number, species, lengths, weights and tissues sampled of fish captured in lakes near the Toolik Lake LTER site during the summer of 1997 (tagging data), Arctic LTER 1997.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=316

Fish number, recap number, species, lengths, and weights of fish captured in lakes near the Toolik Lake LTER site during the summer of 1998 (tagging data), Arctic LTER 1998.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=317

Fish number, recap number, species, lengths, and weights of fish captured in lakes near the Toolik Lake LTER site during the summer of 1999 (tagging data), Arctic LTER 1999.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=318

Fish number, recap number, species, lengths, and weights of fish captured in lakes near the Toolik Lake LTER site during the summer of 2000 (tagging data), Arctic LTER 2000.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, and weights of fish captured in lakes near the Toolik Lake LTER site during the summer of 2001 (tagging data), Arctic LTER 2001.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, and weights of fish captured in lakes near the Toolik Lake LTER site during the summer of 2002 (tagging data), Arctic LTER 2002.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, and weights of fish captured in lakes near the Toolik Lake LTER site during the summer of 2003 (tagging data), Arctic LTER 2003.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, and weights of fish captured in lakes near the Toolik Lake LTER site during the summer of 2004 (tagging data), Arctic LTER 2004.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, and weights of fish captured in lakes near the Toolik Lake LTER site during the summer of 2005 (tagging data), Arctic LTER 2005.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, and weights of fish captured in lakes near the Toolik Lake LTER site during the summer of 2006 (tagging data), Arctic LTER 2006.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, and weights of fish captured in lakes near the Toolik Lake LTER site during the summer of 2007 (tagging data), Arctic LTER 2007.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, and weights of fish captured in lakes near the Toolik Lake LTER site during the summer of 2008 (tagging data), Arctic LTER 2008.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Fish number, recap number, species, lengths, and weights of fish captured in lakes near the Toolik Lake LTER site during the summer of 2009 (tagging data), Arctic LTER 2009.See https://portal.lternet.edu/nis/mapbrowse?scope=knb-lter-arc&identifier=1...

Sites sampled.

Download a comma delimited (csv) or Excel file (includes metadata and data sheets).

Use of the data requires acceptance of the data use policy --> Arctic LTER Data Use Policy

To cite this data set see the citation example on the LTER Network Data Portal page for this data set.