Evaluation of Thermal Requirements for the Propagation and Recovery of June Suckers

Kindschi, Greg A.; Toner, Matt; Fraser, William C.; Routledge, M. Doug; Wilson, Maureen; Converse, Yvette

doi:10.1577/a06-051.1

Cited by 10 publications

(15 citation statements)

References 4 publications

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“…It is important to note that in general, warmer temperatures improved both larval survival and growth in this trial. Juvenile June sucker metabolic function is near optimal at 228C (Kindschi et al 2008). Using growth as a measure of fish performance at various temperatures, our results support that developing embryos and larvae also benefit from warm temperatures.…”

supporting

confidence: 57%

“…The meter was placed in one of the nine individual head tanks on a 9-d rotation, with gas parameters in a single head tank logged every 10 min for 24 h. For all head tanks throughout the duration of the experiment, the range of mean daily values for each variable was as follows: 99-107% for DO saturation; 100-104% for total dissolved gas saturation; and 99-103% for nitrogen plus argon saturation. A photo and further description of the thermal system are given by Kindschi et al (2008).…”

Section: Incubation Holding Tanks and Thermal Experiments Systemmentioning

confidence: 99%

“…Based on its life history and thermal optimum, the June sucker is a warmwater fish (Kindschi et al 2008). Field-and laboratory-derived information on the effects of temperature is much more extensive for coldwater species (,158C; e.g., salmonids) than for warmwater species (.208C), especially suckers Kindschi et al 2008).…”

mentioning

confidence: 99%

“…Field-and laboratory-derived information on the effects of temperature is much more extensive for coldwater species (,158C; e.g., salmonids) than for warmwater species (.208C), especially suckers Kindschi et al 2008). This is likely attributable to the higher interest in salmonid species and the effect of habitat alterations on salmonids (e.g., increased water temperatures and reduction in number of species).…”

mentioning

confidence: 99%

“…Species-specific guidance for managing water temperatures in Utah Lake and its tributaries to promote recovery of June suckers is limited. Juvenile June suckers (;32 weeks of age) have upper thermal tolerance limits greater than 27.98C, and optimal growth and condition factors are observed at 228C (Kindschi et al 2008). Shirley (1983) found that June suckers hatched faster at 21.18C than at 10.68C, but that study did not determine the effect of temperature on embryo survival or larval condition.…”

mentioning

confidence: 99%

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Determination of Upper Temperature Tolerance in June Sucker Larvae: Is the Transition to Utah Lake Temperatures a Recruitment Bottleneck?

et al. 2010

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The June sucker Chasmistes liorus is an endangered adfluvial fish species that is endemic to the Utah Lake basin. This species remains endangered due to a lack of recruitment. Anthropogenic changes to June sucker lotic and lentic habitat has likely led to recruitment failure. Changes to Utah Lake include increased water temperature, increased turbidity, and eutrophic and saline conditions. The remaining spawning habitat for June suckers in the Provo River has experienced flow, temperature, and channelization modifications. We tested the hypothesis that recruitment failure is caused by a thermal shock that occurs when larvae are transported in the drift out of the Provo River (12-198C) and into Utah Lake (17-258C). We used two laboratory methods-direct transfer and acclimated chronic exposure (ACE)-to determine (1) the upper lethal temperature (ULT) and (2) the acute and chronic mortality associated with larval exposure to an acute thermal shock. The ULT of larvae acclimated to 168C was 338C. Survival varied from 81% to 95% for larvae that were directly transferred from 168C (acclimation temperature) to 19-298C and held for 7 d; survival was not significantly different from that of the 168C control. A modified ACE method was used to mimic the riverto-lake transition. Acclimation temperatures of 12, 16, and 198C were increased by 5-88C over 4-6 h. After approximately 30 d, survival ranged from 42% (transition from 168C to 218C) to 87% (transition from 198C to 278C). Mean weight of fish that received the 19-278C transition treatment was significantly greater than that of all other treatment groups except the 19-258C transition group. Warmer incubation and rearing temperatures led to increased growth and survival. We conclude that thermal shock does not explain June sucker larval recruitment failure in Utah Lake, and we suggest that other factors are responsible for the recruitment failure.

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supporting

confidence: 57%

Section: Incubation Holding Tanks and Thermal Experiments Systemmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Determination of Upper Temperature Tolerance in June Sucker Larvae: Is the Transition to Utah Lake Temperatures a Recruitment Bottleneck?

et al. 2010

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Effect of Temperature on Survival of Lost River Suckers with a Natural Infection of Ichthyobodo spp.

et al. 2021

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To compensate for low natural survival of endangered Lost River Suckers Deltistes luxatus, the U.S. Fish and Wildlife Service and the Klamath Tribes have initiated captive rearing programs. We conducted laboratory experiments intended to determine the temperature for optimum growth of juvenile Lost River Suckers; however, due to an unanticipated infection with Ichthyobodo spp., we instead estimated survival in conjunction with temperature and parasite loads. Ichthyobodo spp. are common parasites that infest fish skin and gills; they are known to be present in Upper Klamath Lake and have been found in fish at both the federal and tribal fish‐rearing facilities. All fish held at mean temperatures of 16°C and 19°C survived the entire 65‐d experiment, whereas the median time to death was 27 d at 22°C, 8 d at 24°C, and 7 d at 26°C. Gill samples from all Lost River Suckers tested positive for Ichthyobodo spp. DNA, with a trend toward higher copy numbers in suckers that were held at a mean temperature of 22°C or warmer compared to those held at 19°C or cooler. Fish kept at all temperatures grew slowly. These results suggest that survival of Lost River Suckers with a natural infection of Ichthyobodo spp. was significantly impacted by temperature.

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Fish Assemblage Associations with Floodplain Connectivity Following Restoration to Benefit an Endangered Catostomid

Landress

2015

Trans Am Fish Soc

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The dynamics of stream and floodplain connectivity are a growing consideration for restoration projects. Restoration of a tributary stream to Utah Lake was undertaken in 2008 with the intent of increasing available spawning and nursery habitat for the endangered June Sucker Chasmistes liorus. Restoration efforts provided an opportunity to evaluate relationships between fish assemblages and variables related to the physiochemical environment, vegetation, and habitat connectivity at floodplain ponds. Fish were collected with beach seines and habitat variables were measured each month at 12 floodplain ponds during March 2010 to March 2011. Total catch was predominated by nonnative species: Green Sunfish Lepomis cyanellus, Western Mosquitofish Gambusia affinis, Black Bullhead Ameiurus melas, Fathead Minnow Pimephales promelas, and Bluegill Lepomis macrochirus. Both indirect and direct gradient analyses indicated a significant correlation between fish assemblages and site connectivity. The percentage and type of macrophyte cover (e.g., emergent, submergent) also played a significant role in structuring fish assemblages. Species richness was generally higher at sites with intermediate to high connectivity than at sites with lower connectivity. Sites with lower connectivity were predominated by Green Sunfish, Mosquitofish, and Fathead Minnow. June Suckers were collected from sites with intermediate values of connectivity and vegetation. Observed patterns suggested connectivity structured initial fish assemblages and macrophyte colonization dynamics; subsequent interactions between local habitat (i.e., percent vegetation) and biotic factors (e.g., competition, predation, etc.) provided site‐specific interactions and structure. The results of this study indicate connectivity dynamics should be an important consideration in stream and floodplain restoration efforts.

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Evaluation of Thermal Requirements for the Propagation and Recovery of June Suckers

Cited by 10 publications

References 4 publications

Determination of Upper Temperature Tolerance in June Sucker Larvae: Is the Transition to Utah Lake Temperatures a Recruitment Bottleneck?

Determination of Upper Temperature Tolerance in June Sucker Larvae: Is the Transition to Utah Lake Temperatures a Recruitment Bottleneck?

Effect of Temperature on Survival of Lost River Suckers with a Natural Infection of Ichthyobodo spp.

Fish Assemblage Associations with Floodplain Connectivity Following Restoration to Benefit an Endangered Catostomid

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