Hypoxia-based habitat compression in the Neuse River Estuary: context-dependent shifts in behavioral avoidance thresholds

Eby, Lisa A.; Crowder, Larry B.

doi:10.1139/f02-067

Cited by 268 publications

(258 citation statements)

References 33 publications

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“…Further work with telemetry in areas that bottlenose dolphins frequent may help determine how subadult red drum balance feeding and predation risk (Gilliam & Fraser 1987). The response of organisms to estuarine water quality variables can be complex (Eby & Crowder 2002, Bell et al 2003. In the present study, there was a positive relationship between age-2 red drum and temperature, but only in the Neuse River and Outer Banks regions.…”

Section: Habitat Use Of Red Drummentioning

confidence: 47%

“…areas with dissolved oxygen concentration < 2 mg l -1 ) on fishes are well docu- mented, often resulting in behavioral avoidance or reduced growth or survival (Pihl et al 1991, Eby & Crowder 2002). We did not observe significant effects of dissolved oxygen concentration on the distribution of either age class of red drum from the gill net survey, but subadult red drum CPUE was positively related to dissolved oxygen levels in Hancock Creek.…”

Section: Habitat Use Of Red Drummentioning

confidence: 99%

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Abiotic and biotic factors influence the habitat use of an estuarine fish

Bacheler¹,

Paramore²,

Buckel³

et al. 2009

Mar. Ecol. Prog. Ser.

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For migratory fishes that occupy multiple habitats, surveys conducted at different scales may be required to assess habitat use. We used generalized additive models (GAMs) to relate water quality, microhabitat, geographic, and temporal factors to catches of 2 age classes of subadult red drum Sciaenops ocellatus from a 6 yr fishery-independent gill net survey in North Carolina, USA. Age-1 and age-2 red drum were most often caught in shallow, nearshore waters; in some regions, both showed a preference for seagrass. Age-1 red drum were primarily captured at 2 different salinity ranges (0 to 5 and 20 to 30 psu), while age-2 red drum abundance was not related to salinity. A smaller-scale analysis of 36 telemetered age-2 red drum in a small tributary of the Neuse River showed a negative response to salinity, a positive response to dissolved oxygen, a dome-shaped response to prey evenness, and a positive response to total prey. Although subadult red drum can tolerate a wide variety of environmental conditions, our research suggests that they associate with both abiotic and biotic factors in very specific ways. Habitat use patterns of subadult red drum were age-, scale-, and sometimes region-dependent, highlighting the need for examining habitat use patterns of estuarine organisms at multiple life history stages and scales if generalities about how species respond to abiotic and biotic factors are sought.

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Section: Habitat Use Of Red Drummentioning

confidence: 47%

Section: Habitat Use Of Red Drummentioning

confidence: 99%

Abiotic and biotic factors influence the habitat use of an estuarine fish

Bacheler¹,

Paramore²,

Buckel³

et al. 2009

Mar. Ecol. Prog. Ser.

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show abstract

“…To maintain a healthy aquatic life, the daily minimum DO requirement claimed to be 5 mg/L in the water column (NDDoH, 2010); however, amount of DO needed to prevent mortality differs among species and between life stages. For instance, fish eggs and young fish, are more sensitive to low DO than adults (Eby and Crowder, 2002;Ludsin et al, 2009). Hypoxia (i.e., DO <2 mg L −1 ) can affect biological communities in the aquatic ecosystem; for instance, prolonged low DO levels can cause fish kills (Rao et al, 2014) and benthic macroinvertebrate kill (Bridgeman et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Effect of Diurnal Variation of Dissolved Oxygen in a Eutrophic Polymictic Reservoir

Balangoda¹

2017

American Journal of Environmental Sciences

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Abstract:To evaluate the diurnal and seasonal Dissolved Oxygen (DO) variations and their effects on water quality, a comprehensive study was conducted in a eutrophic polymictic reservoir under artificially aerated and non-aerated conditions. The effect of aeration among sampling locations and along the water column of DO and DO saturation and diurnal variation of DO, water temperature, pH and conductivity was evaluated under aerated and non-aerated conditions. Dissolved oxygen and water temperature exhibited diurnal variations under aerated and non-aerated conditions; however, no notable diurnal variation was observed in conductivity and pH. The anoxic condition was observed in near-bottom waters at night under non-aerated conditions. The diurnal DO concentration at the surface level was higher under non-aerated conditions than aerated conditions. The diurnal DO variation implies that excessive algae and weed growth cause a major impact on DO production and consumption during the day and night, respectively. The DO concentration at different sampling locations revealed that artificial aeration increased DO concentration in the deep portion of the reservoir. However, results showed that the existing aeration system was inadequate to increase the DO concentration in the entire reservoir.

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“…Given the interdisciplinary nature of the phenomenon, marine hypoxia has generated a widespread interest among scientists in different disciplines (for example, see Eby and Crowder (2002);Breitburg (2002); Borsuk et al, (2004); Taylor and Eggleston (2004)). Scientific studies have found evidence that hypoxia can affect different fish species in various ways such growth and mortality (for example, Peterson et al, 2000;Miller et al, 2002;Stierhoff et al, 2009;Thomas et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Time series effects of dissolved oxygen and nitrogen on Long Island Sound lobster harvest

2016

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Abstract:The formation of hypoxic water zones in marine ecosystems across the world is a growing concern among marine scientists and regulatory agencies that focus on marine resource management. In the United States, a number of water systems such as the Gulf of Mexico, Long Island Sound, and the Chesapeake Bay experience hypoxic conditions annually. Nutrient rich water with excessive nitrogen content is widely recognized as a key anthropogenic cause that lead to development of hypoxic zones. While the dissolved oxygen level indicates the presence of hypoxic water conditions, at any given time, the aquatic nitrogen concentration indicates the possibility of formation of hypoxic zones in future time periods. Hence, understanding the effects of both these variables on current and future fish population is important for improved water quality management and sustainability of marine resources. In this paper, we estimate the temporal effects of these two key variables on lobster harvest from three contiguous fishing zones in the Long Island Sound that vary in ambient water quality. We find there is no contemporaneous effect of these variables on harvest in both the zone that experience hypoxia and the two zone that do not. While there is some evidence of lagged effects of these variables on harvest, no systematic pattern emerges in these effects that distinguishes the hypoxic fishing zone with non-hypoxic zones.

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Hypoxia-based habitat compression in the Neuse River Estuary: context-dependent shifts in behavioral avoidance thresholds

Cited by 268 publications

References 33 publications

Abiotic and biotic factors influence the habitat use of an estuarine fish

Abiotic and biotic factors influence the habitat use of an estuarine fish

Effect of Diurnal Variation of Dissolved Oxygen in a Eutrophic Polymictic Reservoir

Time series effects of dissolved oxygen and nitrogen on Long Island Sound lobster harvest

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