Observed Currents and Water Levels in Hamilton Harbour

Wu, Jian; Tsanis, Ioannis K.; Chiocchio, F.

doi:10.1016/s0380-1330(96)70951-6

Cited by 19 publications

(11 citation statements)

References 12 publications

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“…Hamilton Harbour is known to be a highly variable system [54] that experiences regular seiches [55] and exchange flows with Lake Ontario, especially during the summer [27]. Circulation and mixing in the harbour are primarily controlled by prevailing winds [56].…”

Section: Discussionmentioning

confidence: 99%

Metagenomic analysis of virus diversity and relative abundance in a eutrophic freshwater harbour

Palermo

Fulthorpe

Saati

et al. 2019

Preprint

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Aquatic viruses have been extensively studied over the past decade, yet fundamental aspects of freshwater virus communities remain poorly described. Our goal was to characterize particle-associated virus communities seasonally and spatially in a freshwater harbour. Community DNA was extracted from water samples and sequenced on an Illumina HiSeq platform. Assembled contigs were annotated as belonging to the virus families Caudovirales, Mimiviridae, Phycodnaviridae, and virophages (Lavidaviridae), or to other groups of undefined viruses. Diverse Mimiviridae contigs were detected in the samples, but the two sites contained distinct Mimiviridae communities. Virophages were often the most abundant group, and discrete virophage taxa were remarkably stable across sites and dates despite fluctuations in Mimiviridae community composition. Caudovirales were present at low abundances in most samples, contrasting other studies of freshwater environments. Similarly, Phycodnaviridae abundances were surprisingly low in all samples despite the harbour’s capacity to support high algal biomass during the summer and autumn months, suggesting that Mimiviridae are the dominant algae-infecting viruses in this system. Overall, our findings provided insights into freshwater virus community assemblages by expanding the documented diversity of freshwater virus communities, highlighting the potential ecological importance of virophages, and revealing distinct communities over small spatial scales.

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Section: Discussionmentioning

confidence: 99%

Metagenomic analysis of virus diversity and relative abundance in a eutrophic freshwater harbour

Palermo

Fulthorpe

Saati

et al. 2019

Preprint

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“…4a and b show modelled and observed temperature spectra at two levels (1 and 8 m) at the deepest location in the harbour (DH). At the surface (1 m) both field and model data show peaks at 24 h and 12 h due to diurnal and semi-diurnal peaks, reflecting the response of the wind peaks (Wu et al, 1996). Although diurnal and semi-diurnal peaks are evident in the observations at the thermocline depth (8 m), model only simulated 12 h peak reasonably well.…”

Section: Model Validationmentioning

confidence: 88%

“…Wu et al (1996) found that the most significant peaks of water levels are around 12.4 and 5.2 h corresponding to the astronomical tide and fundamental seiche of Lake Ontario, respectively. They also noticed a peak at 2.7 h corresponding to Helmholtz mode of the harbour.…”

Section: Model Validationmentioning

confidence: 99%

“…Considerable work has gone into characterizing this exchange flow between the harbour and the lake (Dick and Marsalek, 1973;Hamblin, 1998;Lawrence et al, 2004). Several studies using field measurements in the harbour were conducted to quantify the currents and mixing within the harbour (OME, 1985;Boyce and Chiocchio, 1991;Wu et al, 1996). Wu et al (1996) observed that the currents in the harbour are mainly wind-driven and detected seiches in the water levels.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies using field measurements in the harbour were conducted to quantify the currents and mixing within the harbour (OME, 1985;Boyce and Chiocchio, 1991;Wu et al, 1996). Wu et al (1996) observed that the currents in the harbour are mainly wind-driven and detected seiches in the water levels. On the other hand, theoretical and numerical models have also been developed either to study the exchange processes between these two water bodies without specifically validating the harbour circulation (Gu and Lawrence, 2001;Hamblin and He, 2003) or simulate current movements without explicitly considering the importance of the exchange mechanisms (James and Eid, 1978;Tsanis and Wu, 1995).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Application of a numerical model for circulation, temperature and pollutant distribution in Hamilton Harbour

Rao

Marvin

Zhao

2009

Journal of Great Lakes Research

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A subchronic in situ exposure method for evaluating effects in small‐bodied fish at contaminated sites

Miller

Sherry

Parrott

et al. 2011

Environmental Toxicology

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In situ fish-caging studies at contaminated sites can provide information that is more realistic compared to traditional laboratory-based studies. However, few methods have been developed for exposing sentinel fish species for subchronic durations, and fewer still are optimized for exposing small-bodied fish while maintaining fish health and growth throughout the caging trial. Those methods typically lack a feeding regimen during the fish caging trial. While that may be acceptable or even appropriate for typical short-term toxicity testing, it does limit the duration of the exposure, and may not be suitable when post-caging trials or observations are necessary. Returning healthy fish to the lab following the in situ exposure would be important, for example, in studies designed to examine long-term or multigenerational effects following an in situ exposure. In this article we describe a subchronic method for caging small fish at contaminated sites while maintaining growth and reproductive development. Fathead minnow (Pimephales promelas) were caged in situ for 6 weeks, after which time they were returned to the lab where they were evaluated for health and reproductive performance. Growth and reproductive endpoints revealed no adverse effect on fish due to fish caging and related handling, demonstrating the suitability of our caging and feeding method for long-term caging studies.

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Observed Currents and Water Levels in Hamilton Harbour

Cited by 19 publications

References 12 publications

Metagenomic analysis of virus diversity and relative abundance in a eutrophic freshwater harbour

Metagenomic analysis of virus diversity and relative abundance in a eutrophic freshwater harbour

Application of a numerical model for circulation, temperature and pollutant distribution in Hamilton Harbour

A subchronic in situ exposure method for evaluating effects in small‐bodied fish at contaminated sites

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