TPWD 1962 F-4-R-9 #803: Job Completion Report: Resurvey of Possum Kingdom Lake, Project F-4-R-9
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JOB COMPLETION REPORT
As required by
FEDERAL AID IN FISHERIES RESTORATION ACT
Federal Aid Project No. F-4-R-9
FISHERIES INVESTIGATIONS AND SURVEYS OF THE WATERS OF REGION 2-A
Job No. B-30 Resurvey of Possum Kingdom Lake
Project Leader: Leonard Lamb
H. D. Dodgen
Executive Secretary
Texas Game and Fish Commission
Austin, Texas
Marion Toole Eugene A. Walker
@ D-J Coordinator Director, Program Planning
February 13, 1963
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ABSTRACT
Gill net collections at bi-monthly intervals made use of previously established
net stations where possible. Data concerning length, weight, sexual maturity and
food habits were recorded for specimens taken.
Net collections between November 1, 1961 and October 31, 1962 took 15 of the 24
species that reach nettable size in Possum Kingdom Lake. The known species that
were not taken in the 1961-1962 netting were not abundant in the previous segment.
The results of netting done in 1958-1959 and 1961-1962 are considered adequate
but those of 1960-1961 were not believed to be representative, as netting attempts
were hampered by bad weather conditions.
Gizzard shad proved to be the most numerous species in the catch both in 1958-
1959 and the 1961-1962 netting. The percentage of this species was reduced from
47.85 to 37.49 with the number and pounds per 100 feet of gill net reflecting this
change.
Smallmouth buffalo decreased in abundance in the catch as did white crappie but
carp, channel catfish, largemouth bass, redear sunfish and bluegill sunfish showed an
increase.
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JOB COMPLETION REPORT
STATE OF Texas
Project No. F-4-R-9 Name: Fisheries Investigations and Surveys of the
Waters of Region 2-A
Title: Resurvey of Possum Kingdom Lake
Period Covered: November 1, 1961 - October 31. 1962
Job No. B-30
Objectives:
To conduct investigations to obtain current information concerning the fish
population and factors influencing that population.
Techniques Used:
Gill net collections were made at bi-monthly intervals using previously
established net stations when possible. The information obtained was compared
with that from previous collections to determine any changes that might have
occurred.
Seine sampling was abandoned after it became apparent that the raised water
level had inundated the heavily vegetated shoreline to a depth that rendered
previous seine stations unusable. The newly flooded brush areas could not be
seined successfully.
All fish species taken in the nets were identified, weighed, measured and
examined for evidence of sexual maturity and food habits. The data obtained was
recorded on forms prepared for that purpose to facilitate comparison with collec-
tions from previous net sampling.
Results: i
Net collections from Possum Kingdom Lake between November 1, 1961 and October
31, 1962 produced 15 of the 24 species that reach nettable size (Table 1). Yellow
bullhead, spotted bass, warmouth, green sunfish and yellowbelly sunfish are known
to be present in reasonable numbers, but do not appear in the net collections
with much regularity. Shortnose gar, Texas grey redhorse and striped mullet have
been represented in past collections by only one or two specimens that were intro-
duced by bait dealers and only three have been reported with two having been
observed by fishery biologists.
Tables 2, 3, and 4 present the results of net collections from 1958-1959,
1960-1961, and 1961-1962. The collections from 1960-1961 was not a representa-
tive sample as it was made during very adverse weather conditions.
The gizzard shad percentage in the 1958-1959 collection was 47.85 but dropped
to 37.49 in the 1961-1962 netting. The number and pounds per 100 feet gill net
also reflected this change in the makeup of the fish population.
A slight change in the carp and buffalo percentages was noted. The smallmouth
buffalo percentage was 0.89 in 1958-1959 and 0.28 in 1961-1962 while carp showed the
opposite trend with 0.21 per cent in 1958-1959 rising to 0.28 per cent in 1961-1962.
This change is slight but is reflected in the catches of the contract netters who are
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complaining that their catch of buffalo has failen off while the carp take is rising.
This has resulted in one of the three contract fisherman leaving Possum Kingdom Lake
in November 1962.
A slight increase in the percentage of channel catfish and largemouth bass was
noted, These species made up 5.49 and 2.51 per cent respectively of the 1958-1959 net
catch but provided 5.57 and 3.02 per cent of the 1961-1962 total. This change is
noticeable in the results of sport fishing where there has been a decided vise in the
take of channel catfish on trotlines and Largemouth bass on artificial lures. The
majority of the bass taken are either yearling or young of the year depending on the
time of the year.
White crappie showed a slight drop in percentage of number taken with 6.05 in
1958-1959 and 5.48 in 1961-1962 but the percentage of weight indicates that the fish
were heavier. In the 1958-1959 catch, white crappie make up 2.33 per cent of the total
while this species provides 3.68 per cent of the 1961-1962 weight. The average length
also rose from 180 to 193 millimeters, This is also reflected in the catch of the
sport fishermen at the various crappie fishing barges on the Lake where there has been
a general trend toward Large crappie.
One of the more pronounced changes has occurred in the sunfishes, where the redear
and bluegill have made significant gains in percentages of both number and weight
along with gains in average length. The redear sunfish made up 2.85 per cent of the
number and 0.86 per cent of the weight in the 1958-1959 netting but rose to 9.35 per
cent of the number and 3.69 per cent of the weight in 1961-1962. Bluegill sunfish
offered a more distinct change with 7.15 per cent of the number and 1.90 per cent of
the weight in 1958-1959 rising to 24.83 and 8.77 per cent respectively in 1961-1962.
\
Prepared by _ Leonard D., Lamb G7) i ‘
Project Leader Approved by l ATLOV Ee SAC
Coordinator Inland Fisheries
Date: January 13, 1963
Regional Supervisor
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Table 1. CGheckiist of Fishes from Possum Kingdom, June 1, 1953 through
October 31, 1962.
Scientific Name
Gommon Name
EEE
Lepisosteus platostomus
Lepisosteus 3%
Lepisosteus osseus
Dorosoma cepedianum
Carpiodes carpio
Ictiobus bubalus
Moxostoma congestum
Cyprinus carpio
Notropis oxyrhynchus
Notropis fumeus
Notropis umbratilis
Notropis venustus
Notrepis lutrensis
Notropis st MLS
Notropis atrocaudalis
Pimephales vigilax
Ictalurus punctatus
Ictalurus natalis
Pylodictus olivaris
Fundulus notatus
Gambusia affinis
Roccus chrysops
Micropterus punctualatus
Micropterus salmoides
Chaenobryttus gulosus
Lepomis cyanellus
Lepomis punctatus
Lepomis microlophus
Lepomis macrochirus
Lepomis auritus
Pomoxis annularis
Pomoxis migromaculatus
Percina caprodes
Aplodinotus grunniens
Astyanax mele;
*Mugil cephalus
eee
Shortnose gar
Spotted gar
Longnose gar
Gizzard shad
River carpsucker
Smallmouth buffalo
Gray redhorse
European carp
Sharpnose shiner
Ribbon shiner
Redfin shiner
Blacktail shiner
Plains red shiner
Southern sand shiner
tail shiner
aead minnow
Channel catfish
Yellow bullhead
Flathead catfish
Blackstripe topminnow
Mosquito fish
White bass
Spotted bass
Largemouth black bass
Warmouth
Green sunfish
Spotted sunfish
Redear sunfish
Bluegill sunfish
Yellowbelly sunfish
White crappie
Black crappie
Logperch
Freshwater drum
Rio Grande tetra
Striped mullet
* Note- This species is a marine form that has probably been introduced by bait
dealers,
RN
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