Effects of Temperature on the Early Development, Growth, and Survival of Shortnose Sturgeon, Acipenser brevirostrum, and Atlantic Sturgeon, Acipenser oxyrhynchus, Yolk-Sac Larvae

Hardy, Ryan S.; Litvak, Matthew K.

doi:10.1023/b:ebfi.0000029345.97187.5b

Cited by 71 publications

(69 citation statements)

References 26 publications

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“…Mayfield and Cech (2004) also used thermal preference data to estimate lethal temperatures for green sturgeon. Studies of shortnose sturgeon have examined effects of temperature on spawning activity, egg development, and seasonal movements (Hall et al 1991;Collins and Smith 1993;Kynard 1997;Collins et al 2002;Hardy and Litvak 2004;DeVries 2006).…”

Section: Introductionmentioning

confidence: 99%

Thermal maxima for juvenile shortnose sturgeon acclimated to different temperatures

2007

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Many populations of shortnose sturgeon, Acipenser brevirostrum, in the southeastern United States continue to suffer from poor juvenile recruitment. High summer water temperatures, which may be exacerbated by anthropogenic activities, are thought to affect recruitment by limiting available summer habitat. However, information regarding temperature thresholds of shortnose sturgeon is limited. In this study, the thermal maximum method and a heating rate of 0.1°C min −1 was used to determine critical and lethal thermal maxima for young-of-the-year (YOY) shortnose sturgeon acclimated to temperatures of 19.5 and 24.1°C. Fish used in the experiment were 0.6 to 35.0 g in weight and 64 to 140 days post hatch (dph) in age. Critical thermal maxima were 33.7°C (±0.3) and 35.1°C (±0.2) for fish acclimated to 19.5 and 24.1°C, respectively. Critical thermal maxima significantly increased with an increase in acclimation temperature (p<0.0001).Lethal thermal maxima were 34.8°C (±0.1) and 36.1°C (±0.1) for fish acclimated to 19.5 and 24.1°C, respectively. Lethal thermal maxima were significantly affected by acclimation temperature, the log 10 (fish weight), and the interaction between log 10 (fish weight) and acclimation temperature (p<0.0001). Thermal maxima were used to estimate upper limits of safe temperature, thermal preferences, and optimal growth temperatures of YOY shortnose sturgeon. Upper limits of safe temperature were similar to previous temperature tolerance information and indicate that summer temperatures in southeastern rivers may be lethal to YOY shortnose sturgeon if suitable thermal refuge cannot be found.

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Section: Introductionmentioning

confidence: 99%

Thermal maxima for juvenile shortnose sturgeon acclimated to different temperatures

2007

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“…Juveniles fed diet containing 750 mg/kg enzyme had the significantly highest concentration of total protein among all treatments. This higher level may indicate the higher growth performance and food conversion ratio in fish (Hardy and Litvak 2003;Baker et al 2005). On the other hand, there were no significant differences in total protein levels among other treatments.…”

Section: Resultsmentioning

confidence: 99%

The effects of dietary enzyme on some blood biochemical parameters of the cultured great sturgeon Huso huso juveniles

et al. 2011

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In this study the effects of dietary exogenous enzyme (Kemin®; 0, 250, 500, 750 and 1,000 mg/kg) on certain blood biochemical parameters (total protein, glucose, cholesterol) and serum magnesium in cultured great sturgeon (Huso huso) juveniles were determined. Juveniles (mean weight 10.2±0.8 g) were fed three times a day at 5-10% body weight for 46 days. Serum total protein concentration remained unaffected except in fish fed with 750 mg/kg enzyme which was significantly higher than the other treatments. Although dietary enzyme did not affect the glucose level in juveniles fed with 1,000 mg/kg enzyme, its level decreased significantly in other groups. Serum cholesterol of the fish decreased in all treatments except in fish fed 750 mg/kg dietary enzyme. Magnesium levels were higher in the groups that received 500-750 mg/kg dietary enzyme.

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“…• C for sole Solea solea, Baynes and Howell 1996;3.5−17 • C for C. harengus, Overnell 1997; 10−19 • C for nase Chondrostoma nasus, Kamler et al 1998;13−21 • C for the sturgeons Acipenser brevirostrum and A. oxyrhynchus, Hardy and Litvak 2004;2−10 • C for haddock Melanogrammus aeglefinus, Martell et al 2005). Finally, in the striped snakehead Channa striata (Arul 1991) and the lake minnow Rhynchocypris percnurus (Kaminski et al 2006), the body size at yolk exhaustion was slightly longer at cold than at warm temperatures whereas an opposite trend was observed for the fish dry body mass.…”

Section: Introductionmentioning

confidence: 99%

Biology and culture of the clown loachChromobotia macracanthus(Cypriniformes, Cobitidae) : 4- Thermal biology of embryos and larvae

Baras¹,

Ginanjar

Musa

et al. 2012

Aquat. Living Resour.

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-The knowledge of how fish survive and grow at different temperatures, and how these traits vary between life stages, is essential to evaluate the effects of climate change on wild fish and implement effective strategies in aquaculture. These issues are addressed in this study through a series of experiments that evaluate the effect of temperature (23−34• C) on the embryos and larvae of clown loach, Chromobotia macracanthus. This species is endemic to the rivers of Sumatra and Borneo, highly praised on the ornamental fish market, and has been reproduced in captivity recently. No embryo survived a 24-h exposure to 34• C until the age of 3 days after hatching (dah); mortality was high at 32• C at 2 and 3 dah, whereas it was low and similar from 1 to 4 dah at 23−29• C (<10%). Yolk absorption was proportional to water temperature (Q 10 • C of 1.69 in the 23−32• C range), but fish reared at cold temperatures were larger than others at the start of exogenous feeding (5.7 vs. 5.5 mm TL, at 23 and 32• C, respectively). The survival of larvae fed Artemia nauplii ad libitum was high at 23−32• C (80−100%), but almost null at 34 • C. Growth models at different temperatures were produced from weekly measurements in two experiments, and tested by comparing their predictions with the results of a third experiment. Throughout the larval stage, the optimal temperature for growth (T • opt are encouraging perspectives for the aquaculture of clown loach. From an ecological perspective, the species has an atypical thermal biology, as it is less thermophilic than other tropical fishes, but more stenothermal than temperate fishes exhibiting similar values of T • opt , both traits being of particular concern in the context of global warming.

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Effects of Temperature on the Early Development, Growth, and Survival of Shortnose Sturgeon, Acipenser brevirostrum, and Atlantic Sturgeon, Acipenser oxyrhynchus, Yolk-Sac Larvae

Cited by 71 publications

References 26 publications

Thermal maxima for juvenile shortnose sturgeon acclimated to different temperatures

Thermal maxima for juvenile shortnose sturgeon acclimated to different temperatures

The effects of dietary enzyme on some blood biochemical parameters of the cultured great sturgeon Huso huso juveniles

Biology and culture of the clown loachChromobotia macracanthus(Cypriniformes, Cobitidae) : 4- Thermal biology of embryos and larvae

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