Advective loss of overwintering Calanus finmarchicus from the Faroe–Shetland Channel

Rullyanto, Arief; Jónasdóttir, Sigrún; Visser, André W.

doi:10.1016/j.dsr.2014.12.009

Cited by 5 publications

(2 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…is an important grazer of primary production (Runge and de Lafontaine 1996;Heath and Lough 2007). The younger life stages are important food for juvenile fish in the nursery areas, and the adults are main prey for several pelagic fish stocks such as herring and cod (Dalpadado et al 2000;Sundby 2000;Rullyanto et al 2015). In the spring, egg production for Calanus spp.…”

Section: Introductionmentioning

confidence: 99%

The effects of hydrogen peroxide on mortality, escape response, and oxygen consumption of Calanus spp.

Escobar-Lux

Fields

Browman

et al. 2019

FACETS

View full text Add to dashboard Cite

Hydrogen peroxide (H2O2), a pesticide used in salmonid aquaculture, is released directly into the environment where nontarget organisms are at risk of exposure. We determined threshold concentrations for mortality of Calanus spp., the dominant zooplankton species in the North Atlantic, and assessed sublethal effects, focusing on the escape response and oxygen consumption rates (OCRs) as behavioral and physiological assays. One-hour exposure to 170 mg·L−1 (i.e., 10% of the recommended H2O2 treatment) was lethal to copepodite stage V (92% mortality) and adult females (100% mortality). The acute median lethal concentration (1h-LC50) was 214.1 (150.67–277.4) and 48.6 (44.9–52.2) mg·L−1 for copepodite V and adults, respectively. The 25-h LC50 was 77.1 (57.9–96.2) and 30.63 (25.4–35.8) mg·L−1 for copepodite V and adults, respectively. At concentrations of 0.5% and 1% of the recommended treatment level, Calanus spp. showed a decrease in escape performance and lower OCRs with increased concentration. At H2O2 concentrations of 5% of the recommended treatment levels (85 mg·L−1), exposed copepods showed no escape reaction response. These results suggest that sublethal concentrations of H2O2 will increase the risk of predation for Calanus spp. Furthermore, this study provides supporting evidence that theoretical “safe” values, traditionally used for predicting toxicity thresholds, underestimate the impact of H2O2 on the physiological condition of nontarget crustaceans.

show abstract

Section: Introductionmentioning

confidence: 99%

The effects of hydrogen peroxide on mortality, escape response, and oxygen consumption of Calanus spp.

Escobar-Lux

Fields

Browman

et al. 2019

FACETS

View full text Add to dashboard Cite

show abstract

“…Environmental Fluid Dynamics Code (EFDC) has been widely applied, with study areas including Lake Poyang [5,13,22,23], Lake Tai [24], Lake Chaohu [25,26], Lake Dianchi [27], Lake Fuxian [28], Lake Daoxiang [29], the Changtan Reservoir [30], the Shenzhen Reservoir [31], Morro Bay [32], Kwang-Yang Bay [32], Blackstone River [33], and the St. Lucie Estuary [34]. MIKE SHE is another physically distributed modelling system that has been adopted in many water bodies, including Lake Poyang [35][36][37], Lake Yangchen [38], Lake Trichonis [39], the Karup catchment [40], the Florida Everglades [41,42], the Faroe-Shetland Channel [43], and the Senegal River Basin [44]. In addition, a 2D lake hydrodynamic model developed by Huang et al [45], has been successfully applied in Lake Poyang and Lake Tai for short-time forecasting.…”

Section: Introductionmentioning

confidence: 99%

Modelling the Impacts of Bathymetric Changes on Water Level in China’s Largest Freshwater Lake

Gao

Cui

2019

Water

View full text Add to dashboard Cite

A recent dramatic decline in water level during the dry season in China’s largest freshwater lake (Lake Poyang) significantly influenced water availability and biogeochemical processes. To learn the potential causes of water level decline, this study investigated the hydrodynamic response to bathymetric changes during three typical hydrological years by scenario simulation using Environmental Fluid Dynamics Code (EFDC). The simulation results indicated that bathymetric changes resulted in a water level decrease during a low water level period. Inter-annual variation in the decrease rate implied that water level in typical dry and wet years were influenced more significantly than that in moderate hydrological years. A spatial gradient in the distribution of water level changes was also observed, which was mainly concentrated in the main channel. Water velocities also slowed down, weakly corresponding to the decrease in water level during the low water level period. Overall, bathymetric changes caused by sand mining contributed to water level and velocity variations, influencing the stability and sustainability of the lake ecosystem. This study can potentially enhance our understanding of the hydrodynamic processes in Lake Poyang and support water resource management.

show abstract

Winter mortality in Calanus populations in two northern Norwegian fjords from 1984 to 2016

et al. 2018

View full text Add to dashboard Cite

Advective loss of overwintering Calanus finmarchicus from the Faroe–Shetland Channel

Cited by 5 publications

References 24 publications

The effects of hydrogen peroxide on mortality, escape response, and oxygen consumption of Calanus spp.

The effects of hydrogen peroxide on mortality, escape response, and oxygen consumption of Calanus spp.

Modelling the Impacts of Bathymetric Changes on Water Level in China’s Largest Freshwater Lake

Winter mortality in Calanus populations in two northern Norwegian fjords from 1984 to 2016

Contact Info

Product

Resources

About