Does behavioural thermoregulation underlie seasonal movements in Lake Erie walleye?

Raby, Graham D.; Vandergoot, Christopher S.; Hayden, Todd A.; Faust, Matthew D.; Kraus, Richard T.; Dettmers, John M.; Cooke, Steven J.; Zhao, Yingming; Fisk, Aaron T.; Krueger, Charles C.

doi:10.1139/cjfas-2017-0145

Cited by 55 publications

(59 citation statements)

References 50 publications

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“…A total of 39 fish, tagged at three locations in 2012 (Maumee River, n = 24) and 2014 (Detroit River, n = 3; Niagara Reef, n = 12) were detected by a network of receivers designed to quantify the migration of fish from western spawning locations to eastern foraging areas (Figure ; Raby et al. ). In 2012, receivers were only deployed in the West Basin; therefore, only data from 2013 to 2016 (the most recent year with a complete record of detections on the array) were analyzed.…”

Section: Methodsmentioning

confidence: 99%

Vertical Habitat Use by Adult Walleyes Conflicts with Expectations from Fishery‐Independent Surveys

et al. 2019

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Stock assessments of Walleyes Sander vitreus in Lake Erie rely on a combination of suspended and bottom overnight gill-net surveys to provide population and demographic information. However, the assumption that Walleyes undertake diel vertical migrations and become available to the suspended gill nets at night has never been validated. To understand how vertical habitat use affects the availability of Walleyes to fishery-independent surveys, we compared individual behaviors observed by means of acoustic depth telemetry tags (20 individuals; 2013-2016) with catches in paired suspended and bottom gill-net sets (273 paired sets; 2013-2016) used by management agencies. In contrast to our expectations and observations in other lakes, the mean depths for Walleyes most often occurred in the lower one-half to one-third of the water column, and at lake depths <25 m the fish tended to be close to the bottom. The relationship between fish and lake depth was dependent on year and season. At lake depths >15 m, Walleyes were found at shallower depths during stratified periods (i.e., summer) than during unstratified periods (autumn). They were also found at shallower depths in 2015 and 2016 than in 2013 and 2014. In paired autumn gill-net surveys, (1) the overall proportion of Walleye catch was nearly equal in suspended and bottom gill nets and (2) the proportion of the catch in suspended gill nets declined with fish length. The pattern of decline was dependent on how deep the suspended net was fished and the year in which the data were collected. These results provide evidence that the suspended gill-net surveys currently being used to assess Walleye demographics in Lake Erie are biased toward the capture small Walleyes, while bottom nets are biased toward the capture of large ones. Future telemetry investigations will be needed to understand whether these biases reflect differences in the depth of habitat between small and large Walleyes. GORMAN ET AL.

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Section: Methodsmentioning

confidence: 99%

Vertical Habitat Use by Adult Walleyes Conflicts with Expectations from Fishery‐Independent Surveys

et al. 2019

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“…Since complex ecosystems are generally known to induce the development of migratory phenotypes (e.g. Raby et al, 2018), we hypothesised that pikeperch would possess annual migration patterns to effectively utilise spatiotemporally segregated food and overwintering resources in Lake Höytiäinen. The annual movements were tracked using a mark-recapture approach.…”

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confidence: 99%

Diet and movements of pikeperch (Sander lucioperca) in a large oligotrophic lake with an exceptionally high pikeperch yield

Huuskonen

Piironen

Syväranta

et al. 2019

Ecology of Freshwater Fish

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Through the recent increases in abundance, pikeperch (Sander lucioperca) has not only become a valuable target for recreational and commercial fishing, but also the most important top predator in many lakes. Generally oligotrophic Lake Höytiäinen (283 km2) sustains one of the most economically valuable pikeperch stocks in Finland, and its annual fisheries yield (up to 5.5 kg/ha) is exceptionally high among Finnish lakes. Here, we followed seasonal movements of fish using conventional tagging, and studied short‐term and long‐term diet of pikeperch by stomach content and stable isotope analyses to examine if the movements were motivated by prey availability. A clear seasonal migration pattern was observed: in summer, 80% of the tag recoveries were obtained from the shallow and mesotrophic northern and western areas, whereas in autumn and winter, the deep and oligotrophic southern area dominated in the recaptures. The diet of pikeperch consisted of the most abundant fish species in the lake, perch (Perca fluviatilis) and roach (Rutilus rutilus), as well as insects. Stable isotope analysis indicated a shift from a dominance of pelagic food sources to littoral food sources during the growing season of pikeperch. Our results suggest that the pikeperch migrations facilitate efficient material transfer from the mesotrophic part while the deeper and oligotrophic part offers a favourable overwintering environment.

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“…We varied grid spacing from 7 to 16 km to match a relevant range of simulation scenarios, and used a fixed 1-km spacing in receiver lines-similar to other studies (e.g. Hayden et al, 2016;Knip, Heupel, & Simpfendorfer, 2012a;Raby et al, 2018;Steckenreuter et al, 2017). The time cost for receiver lines was fixed as the sum of the time to travel between sites and the time required to tend each receiver once.…”

Section: Time Cost Comparisonmentioning

confidence: 99%

“…The comparison of three species with contrasting life histories from two large lake ecosystems reinforced the applicability of the simulations to other species. Walleye are pelagic piscivores and seasonally migratory across Lake Erie (Knight, Margraf, & Carline, 1984;Raby et al, 2018;Vandergoot & Brenden, 2014;Wang et al, 2007). In Lake Winnipeg, common carp are primarily benthic herbivores or omnivores and channel catfish are benthic predators on both invertebrates and fishes (Stewart & Watkinson, 2004 (Kessel et al, 2014).…”

Section: Comparisons With Real Animalsmentioning

confidence: 99%

Evaluation of acoustic telemetry grids for determining aquatic animal movement and survival

et al. 2018

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Acoustic telemetry studies have frequently prioritized linear configurations of hydrophone receivers, such as perpendicular from shorelines or across rivers, to detect the presence of tagged aquatic animals. This approach introduces unknown bias when receivers are stationed for convenience at geographic bottlenecks (e.g. at the mouth of an embayment or between islands) as opposed to deployments following a statistical sampling design. We evaluated two‐dimensional acoustic receiver arrays (grids: receivers spread uniformly across space) as an alternative approach to provide estimates of survival, movement and habitat use. Performance of variably spaced receiver grids (5–25 km spacing) was evaluated by simulating (1) animal tracks as correlated random walks (speed: 0.1–0.9 m/s; turning angle SD: 5–30°); (2) variable tag transmission intervals along each track (nominal delay: 15–300 s); and (3) probability of detection of each transmission based on logistic detection range curves (mid‐point: 200–1,500 m). From simulations, we quantified (i) time between successive detections on any receiver (detection time), (ii) time between successive detections on different receivers (transit time), and (iii) distance between successive detections on different receivers (transit distance). In the most restrictive detection range scenario (200 m), the 95th percentile of transit time was 3.2 days at 5 km, 5.7 days at 7 km and 15.2 days at 25 km grid spacing; for the 1,500 m detection range scenario, it was 0.1 days at 5 km, 0.5 days at 7 km and 10.8 days at 25 km. These values represented upper bounds on the expected maximum time that an animal could go undetected. Comparison of the simulations with pilot studies on three fishes (walleye Sander vitreus, common carp Cyprinus carpio and channel catfish Ictalurus punctatus) from two independent large lake ecosystems (lakes Erie and Winnipeg) revealed shorter detection and transit times than what simulations predicted. By spreading effort uniformly across space, grids can improve understanding of fish migration over the commonly employed receiver line approach, but at increased time cost for maintaining grids.

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Does behavioural thermoregulation underlie seasonal movements in Lake Erie walleye?

Cited by 55 publications

References 50 publications

Vertical Habitat Use by Adult Walleyes Conflicts with Expectations from Fishery‐Independent Surveys

Vertical Habitat Use by Adult Walleyes Conflicts with Expectations from Fishery‐Independent Surveys

Diet and movements of pikeperch (Sander lucioperca) in a large oligotrophic lake with an exceptionally high pikeperch yield

Evaluation of acoustic telemetry grids for determining aquatic animal movement and survival

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