Validation of a methodology to determine female white sturgeon (Acipenser transmontanus Richardson, 1836) habitat use within a riverscape during the spawning season

2014 ◽  
Vol 30 (6) ◽  
pp. 1342-1355 ◽  
Author(s):  
V. L. Paragamian ◽  
P. Rust
Keyword(s):  
Habitat Use ◽  
Spawning Season ◽  
White Sturgeon ◽  
Acipenser Transmontanus

Effects of substrate condition on habitat use and survival by white sturgeon (Acipenser transmontanus) larvae and potential implications for recruitment

2011 ◽  
Vol 68 (5) ◽  
pp. 812-822 ◽  
Author(s):  
Steven O. McAdam
Keyword(s):  
Habitat Use ◽  
Water Velocity ◽  
White Sturgeon ◽  
Acipenser Transmontanus ◽  
Spawning Habitat ◽  
Behavioural Responses ◽  
Larval Drift ◽  
Substrate Degradation ◽  
Natural Spawning ◽  
Porous Substrates

To understand links between substrate and recruitment of white sturgeon ( Acipenser transmontanus ), I evaluated the effects of substrate condition on larval drift, hiding, and predation between hatch and 15 days posthatch (dph). Over porous substrates (small gravel = 1.2–1.9 cm; medium gravel = 2.5–5.0 cm; cobble = 10–15 cm), rapid interstitial hiding was observed from 0 to 6 dph at low water velocity (4 cm·s–1), whereas larvae drifted in response to nonporous substrates (sand < 0.2 cm; embedded cobble). Velocities of 20 cm·s–1 led to significantly lower drift only at 1 dph over small gravel. Hiding occurred an average of 2.0–13.3 s after release at 0–6 dph. Predation by sculpins ( Cottus  spp.) on larval sturgeon also decreased significantly in response to porous substrates at 1 dph. The strongest expression of increased hiding and decreased predation when small gravel was available suggests that yolksac larvae prefer small interstitial spaces created by that substrate. Considering behavioural responses in preferred natural spawning habitat suggests yolksac larvae predominantly hide in the vicinity of spawning locations. Identification of strong effects of substrate condition on age-specific drift and survival suggests that substrate degradation may contribute to recruitment limitations for sturgeon.

Co-infection of Acipenserid herpesvirus 2 (AciHV-2) and Streptococcus iniae in cultured white sturgeon Acipenser transmontanus

2017 ◽  
Vol 124 (1) ◽  
pp. 11-20 ◽  
Author(s):  
E Soto ◽  
C Richey ◽  
B Stevens ◽  
S Yun ◽  
K Kenelty ◽  
...  
Keyword(s):  
White Sturgeon ◽  
Acipenser Transmontanus ◽  
Streptococcus Iniae

Acute Toxicity Testing with Juvenile White Sturgeon (Acipenser transmontanus)

1998 ◽  
Vol 33 (1) ◽  
pp. 95-110 ◽  
Author(s):  
W.R. Bennett ◽  
A.P. Farrell
Keyword(s):  
Acute Toxicity ◽  
Swimming Performance ◽  
Juvenile Fish ◽  
Toxicity Testing ◽  
White Sturgeon ◽  
Acipenser Transmontanus ◽  
Toxicity Tests ◽  
Fraser River ◽  
Acute Toxicity Tests ◽  
Acute Toxicity Testing

Abstract The primary goal of this study was to investigate the possibility of using early life stages of white sturgeon (Acipenser transmontanus) (eggs, larvae and fry) as a species relevant to the Fraser River, B.C., for the acute and sublethal toxico-logical testing of forest industry effluents. Here we report the first successful acute toxicity tests for 8-day-old larvae and 42-day-old fry exposed to several chemicals known to be released into the Fraser River (i.e., 6 monochlorovanillin [6 MVAN], 4,5 dichloroguaiacol [4,5 DCG], 4,5 dichlorocatechol [4,5 DCAT], pentachlorophenol [PCP], and didecyldimethylammonium chloride [DDAC]). In most cases, white sturgeon fry were at the lower end of the range for acute toxicity values for chlorinated phenolic compounds, when compared with other juvenile fish species, and they were extremely sensitive to DDAC. The larval stage was usually more sensitive than the fry stage. Acute toxicity tests with fertilized eggs were unsuccessful. A postexposure growth study was inconclusive because neither control nor toxicant-exposed larvae and fry withstood the additional handling used for measuring body mass. At 62-days-old, fry were more tolerant of handling. This allowed measurement of their swimming performance. Although we have concerns about the reliability of using larvae for acute toxicity testing at this time, 60-day-old white sturgeon fry would appear to be both a sensitive and relevant species for assessing environmental impacts relevant to the Fraser River.

scholarly journals A comparison of methods for determining ploidy in white sturgeon (Acipenser transmontanus)

Aquaculture ◽  
2019 ◽  
Vol 507 ◽  
pp. 435-442 ◽  
Author(s):  
Julia A. Fiske ◽  
Joel P. Van Eenennaam ◽  
Anne E. Todgham ◽  
Shawn P. Young ◽  
Cara E. Holem-Bell ◽  
...  
Keyword(s):  
White Sturgeon ◽  
Acipenser Transmontanus ◽  
Comparison Of Methods

Limitations of carrageenan microbound diets for feeding white sturgeon, Acipenser transmontanus, larvae

Aquaculture ◽  
1996 ◽  
Vol 141 (3-4) ◽  
pp. 245-265 ◽  
Author(s):  
Anna Gawlicka ◽  
Line McLaughlin ◽  
Silas S.O. Hung ◽  
Joël de la Noüe
Keyword(s):  
White Sturgeon ◽  
Acipenser Transmontanus
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