Survey of four essential nutrients and thiaminase activity in five Lake Ontario prey fish species

Honeyfield, Dale C.; Daniels, M. E.; Brown, Lisa R.; Arts, Michael T.; Walsh, Maureen G.; Brown, Scott

doi:10.1016/j.jglr.2011.11.008

Cited by 21 publications

(9 citation statements)

References 41 publications

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“…The role of crayfish in the diets and thiamine dynamics of Lake Ontario eels would, however, require additional study for confirmation. Of the two primary taxa contributing to the diets of Lake Ontario eels as indicated by our analysis, Round Goby exhibit a broad range in thiaminase activity Honeyfield et al 2012). However, their thiaminase activity is too low or their consumption is too low, as a diet consisting of Round Goby was not associated with thiamine deficiency in Lake Michigan Lake Trout, whereas the consumption of Alewives was associated with thiamine deficiency (Jaroszewska et al 2009).…”

Section: Discussionmentioning

confidence: 84%

“…No information is available on thiaminase activity in Great Lakes crayfish, and more work would be required to confirm levels and their potential to cause thiamine deficiency. Thiamine levels in Round Goby are adequate for fish nutrition (Honeyfield et al 2012), and while thiamine levels in decapods like crayfish appear sufficient to support fish nutrition (Niimi et al 1997), the thiamine levels in Great Lakes crayfish have not been reported.…”

Section: Discussionmentioning

confidence: 99%

“…For larval stages of these same salmonines, thiamine deficiency leads to mortality known as early mortality syndrome, as well as reduced growth, foraging, and predator avoidance (Brown et al 1998b;Fitzsimons et al 2009). Lake Ontario eels are known to consume Alewives and other prey (J. Casselman, Queens University, personal communication; J. Bowlby, Ontario Ministry of Natural Resources, personal communication), some of which also contain thiaminase (e.g., Rainbow Smelt Osmerus mordax, Round Goby Neogobius melanostomus, and crayfish; Rutledge and Ying 1972;Tillitt et al 2005;Honeyfield et al 2012). However, relatively little is known about the quantitative importance of any of these prey taxa for eel diets or their possible effects on the thiamine status and health of the eels.…”

mentioning

confidence: 99%

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Impacts of Diet on Thiamine Status of Lake Ontario American Eels

Fitzsimons¹,

Brown²,

Brown³

et al. 2013

Trans Am Fish Soc

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The Lake Ontario-upper St. Lawrence River (LOUSL) population of American Eels Anguilla rostrata (hereafter, "eels") was once one of the most important groups of the species but is now in a state of serious decline. Given that thiamine deficiency has been observed in almost all of the top predators in Lake Ontario, we assessed the potential that a diet-induced thiamine deficiency associated with consumption of Alewives Alosa pseudoharengus could be involved. Muscle thiamine was measured in eels from throughout the LOUSL corridor and was compared with putative threshold effect levels established from the literature. Mirex concentrations were used to separate Lake Ontario-resident eels from non-Lake Ontario-resident eels. Stable isotope analyses of eel muscle samples and potential prey, including Alewives, were combined with mixing model software to infer the diets consumed by Lake Ontario eels. Although residence in Lake Ontario was associated with a significant decline in muscle thiamine concentration, estimated Alewife consumption by eels was unexpectedly low. Instead, mixing model results indicated that crayfish and Round Goby Neogobius melanostomus were the major prey. Both taxa are known to contain thiaminase and have the potential to cause thiamine deficiency, but there are no reports of thiamine deficiency associated with Round Goby consumption, thus implicating crayfish. There was no recovery in thiamine levels prior to the initiation of oceanic migration. As a result, thiamine levels of Lake Ontario-resident eels prior to migration were only slightly above putative threshold effect levels for pathological and behavioral effects in Japanese Eels Anguilla japonica, but *Corresponding author: fitzsimonsj@dfo-mpo.gc.ca 1 Deceased. 1358THIAMINE STATUS OF AMERICAN EELS 1359 this would require confirmation with American Eels. Since thiamine levels are expected to decline further during migration, additional effects on eel behavior, reproduction, and survival seem probable. Because of panmixia, such effects-when combined with the relatively high reproductive potential of Lake Ontario-resident eels-may have consequences for the entire species.

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Section: Discussionmentioning

confidence: 84%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Impacts of Diet on Thiamine Status of Lake Ontario American Eels

Fitzsimons¹,

Brown²,

Brown³

et al. 2013

Trans Am Fish Soc

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“…Sebastes spp., Hexagrammidae, and Engraulis mordax). Previous studies with alewife, rainbow smelt, and Baltic herring Clupea harengus found thiaminase activity to be highly variable (Wistbacka et al 2002;Tillitt et al 2005;Honeyfi eld et al 2012). More importantly, Wistbacka and Bylund (2008) suggested that Baltic salmon with a high incidence of thiamine defi ciency (referred to as M74) targeted herring with higher thiaminase activity.…”

Section: Discussionmentioning

confidence: 97%

An Exploratory Assessment of Thiamine Status in Western Alaska Chinook Salmon (Oncorhynchus tshawytscha)

Honeyfield¹,

Murphy²,

Howard³

et al. 2016

NPAFC Bull.

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“…; Honeyfield et al. ). Thiamine‐deficient Rainbow Trout populations may experience early mortality syndrome in newly hatched fry (Fitzsimons et al.…”

Section: Discussionmentioning

confidence: 99%

Changes in Growth of Rainbow Trout in a Catskill Mountain Reservoir Following Alewife and White Perch Introductions

George

Baldigo

Flaherty

et al. 2018

N American J Fish Manag

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Rainbow Trout Oncorhynchus mykiss were introduced to the Esopus Creek watershed in the Catskill Mountains of New York in the early 1880s. This introduction created a renowned naturalized fishery that remains important to the local economy today. The objective of this study was to determine whether the growth and condition of Rainbow Trout in the Ashokan Reservoir changed following the establishment of (1) Alewives Alosa pseudoharengus in the 1970s and (2) White Perch Morone americana in the 2000s by analyzing historical scale samples from 502 Rainbow Trout. The resulting data were used to compare length at age, von Bertalanffy growth curves, age‐specific annual growth increments, and relative weight before and after each introduction. Results indicated that growth of Rainbow Trout of ages <5 years generally increased following each introduction, while insufficient data for ages 5 and 6 made trends for older fish unclear. Rainbow Trout of ages ≤2 are believed to primarily use riverine habitats in this watershed, and therefore fish of ages >2 may best reflect reservoir growth. The mean relative weight of Rainbow Trout also increased between each period. The largest increases in both growth and condition were observed during the period after the introduction of White Perch, which was unexpected considering this species may have some diet overlap with Rainbow Trout and should be a poor forage species. Changes in watershed management and density‐dependent growth effects may explain these unexpected results. Our results, which largely suggest increased growth and condition over time, eliminate growth effects as a possible explanation for declining Rainbow Trout populations and suggest recruitment issues in the watershed require further investigation. This study contributes to our understanding of the interactions between introduced species and underscores the value of maintaining long‐term monitoring programs for assessing biological trends.

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Survey of four essential nutrients and thiaminase activity in five Lake Ontario prey fish species

Cited by 21 publications

References 41 publications

Impacts of Diet on Thiamine Status of Lake Ontario American Eels

Impacts of Diet on Thiamine Status of Lake Ontario American Eels

An Exploratory Assessment of Thiamine Status in Western Alaska Chinook Salmon (Oncorhynchus tshawytscha)

Changes in Growth of Rainbow Trout in a Catskill Mountain Reservoir Following Alewife and White Perch Introductions

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