Striped Bass Culture Program Report: 1989 Page: INTRODUCTION
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INTRODUCTION
Striped bass (Morone saxatilis) were once common along the Gulf Coast from
Florida to Louisiana and Texas (Stevenson 1893), but now only remnant
populations are found in this part of their historical range (Gulf States
Marine Fisheries Commission 1986). In 1967, striped bass and hybrid striped
bass (M. saxatilis x M. chrysops) larvae from out-of-state sources were
brought to Texas. Although methods used for induced spawning of striped bass
were developed by Stevens in 1965, Texas did not use them until 1972 when
mature broodstock were found in Lake E. V. Spence (Follis 1973). Broodfish
from this source were then used to produce striped bass and hybrid striped
bass fingerlings.
This report documents 1989 striped bass and hybrid striped bass
production. Data from 1989 are compared to those collected in previous years,
and recommendations are made to improve the existing program.
METHODS AND MATERIALS
Striped bass broodstock were collected by electrofishing (Warren, in
preparation) from the tailraces at Lakes Livingston and Granbury and by gill-
netting (Bowling personal communication) at Toledo Bend Reservoir in 1989
(Table 1).
Collections were made for striped ,bass broodstock at Lake Livingston four
times in April and once in May. Collections were made once in April at Toledo
Bend Reservoir. Collections were made at Lake Granbury once in April and once
in May.
Collections were made for white bass broodstock males in the Brazos River
above Lake Granbury twice in March and once in April. Collections were also
made in Possum Kingdom Lake on 28 March and in the Colorado River above Lake
Buchanan on 29 March. All broodstock were shipped directly to the Possum
Kingdom State Fish Hatchery and held until needed in ponds with forage fish.
Striped bass males and females were collected using an electrofishing
boat at Lakes Livingston and Granbury tailraces. The fish were then taken to
shore by boat and placed in 1.8-m diameter circular tanks containing 15 mg/l
MS-222. After the fish were anesthetized, their sex was determined by
inspection of the urogenital vent and palpation of the abdominal region. Egg
samples were removed from females immediately after capture using a 3.0-mm
O.D. glass catheter (Harrell et al. 1990). Eggs samples were then viewed with
a binocular microscope and classified as either mature or immature. Mature
females that were eligible for induced ovulation were weighed, tagged and
injected with 68 I.U./kg female human chorionic gonadotropin (HCG). Mature
males were weighed, tagged and injected with 34 I.U./kg.
After injection, broodfish were loaded immediately on transportation
vehicles which were equipped with aeration and compressed oxygen.
Transportation media contained 1% NaCl, No-Foam* and 1 mg/l oxolinic acid.
White bass males were also collected by electrofishing, transported to
shore, sexed and loaded immediately into a transportation vehicle. The
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Warren, H. Joe. Striped Bass Culture Program Report: 1989, report, November 1990; Austin, Texas. (https://texashistory.unt.edu/ark:/67531/metapth1203999/m1/7/: accessed July 11, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.