Zooplankton distributions at the Georges Bank frontal system: retention or dispersion?

Larval lobster ( Homarus americanus ) distribution and drift in the vicinity of the Gulf of Maine offshore banks and their probable origins

“…These plankton assemblages provide insight into the possibility of transport of lobster larvae off Georges Bank into the Gulf of Maine. The late summer mesoplankton distributions correspond closely to the published early summer results along the same transect (Perry et al, 1993). The similarity we observed between the micro-and mesoplankton distributions suggests that the divergent swimming abilities are less important than either the environmental characteristics or the physical forces in maintaining discrete distributions.…”

“…These plankton assemblages provide insight into the possibility of transport of lobster larvae off Georges Bank into the Gulf of Maine. The late summer mesoplankton distributions correspond closely to the published early summer results along the same transect (Perry et al. , 1993).…”

Larval lobster ( Homarus americanus ) distribution and drift in the vicinity of the Gulf of Maine offshore banks and their probable origins

“…These plankton assemblages provide insight into the possibility of transport of lobster larvae off Georges Bank into the Gulf of Maine. The late summer mesoplankton distributions correspond closely to the published early summer results along the same transect (Perry et al, 1993). The similarity we observed between the micro-and mesoplankton distributions suggests that the divergent swimming abilities are less important than either the environmental characteristics or the physical forces in maintaining discrete distributions.…”

“…These plankton assemblages provide insight into the possibility of transport of lobster larvae off Georges Bank into the Gulf of Maine. The late summer mesoplankton distributions correspond closely to the published early summer results along the same transect (Perry et al. , 1993).…”

Influence of a tidal front on zooplankton abundance, assemblages and life histories in Península Valdés, Argentina

“…As occur in many tidal fronts (e.g., Liu et al, 2003;Perry et al, 1993;Schultes et al, 2013), the lowest zooplankton abundance and Chl-a values were found in the mixed zone. Although this zone is characterized by the presence of suspension detritus (Carreto et al, 1986;Li et al, 2007) and high nutrient concentrations, which are resuspended from the bottom to the surface by the effect of the strong tidal mixing (Mann and Lazier, 2006), the success of many planktonic organisms would be difficult because of the mechanical stress due to turbulence (e.g., Carreto et al, 1986;Liu et al, 2003;Mianzan et al, 2010;Munk, 1993;Sabatini and Martos, 2002).…”

“…It has been shown that small hake larvae are retained in the stratified zone of a tidal front through a vertical migratory behavior, taking advantage of the existence of a two-layer water flow that would allow horizontal transport (Álvarez-Colombo et al, 2011). This behavior has been observed in several zooplankton organisms that are retained in highly productive systems such as fronts (Andersen et al, 2004;Morgan et al, 1997;Naylor, 2010;Perry et al, 1993;Schmitt et al, 2011). In that sense, it could be expected that a similar behavior of copepods would be the main mechanism responsible for the movement of this group to the different zones of the tidal frontal system, allowing them to explore zones profitable for its development.…”

Comparing Physical Collection and Environmental DNA Methods for Determining Abundance Patterns of Gammarus Species along an Estuarine Gradient

“…In contrast, most light-trap captures were the species G. mucronatus and G. lawrencianus. Closely related to G. lawrencianus [54], G. annulatus has adopted a divergent pelagic life history and is more frequently captured during night trawls despite having similar day/night abundances [53,73]. Likewise, G. lawrencianus are more prevalent in light-trap samples relative to raking, but this effect is zone-dependent.…”

Larval lobster ( Homarus americanus ) distribution and drift in the vicinity of the Gulf of Maine offshore banks and their probable origins

“…These plankton assemblages provide insight into the possibility of transport of lobster larvae off Georges Bank into the Gulf of Maine. The late summer mesoplankton distributions correspond closely to the published early summer results along the same transect (Perry et al, 1993). The similarity we observed between the micro-and mesoplankton distributions suggests that the divergent swimming abilities are less important than either the environmental characteristics or the physical forces in maintaining discrete distributions.…”

“…These plankton assemblages provide insight into the possibility of transport of lobster larvae off Georges Bank into the Gulf of Maine. The late summer mesoplankton distributions correspond closely to the published early summer results along the same transect (Perry et al. , 1993).…”

Influence of a tidal front on zooplankton abundance, assemblages and life histories in Península Valdés, Argentina

“…As occur in many tidal fronts (e.g., Liu et al, 2003;Perry et al, 1993;Schultes et al, 2013), the lowest zooplankton abundance and Chl-a values were found in the mixed zone. Although this zone is characterized by the presence of suspension detritus (Carreto et al, 1986;Li et al, 2007) and high nutrient concentrations, which are resuspended from the bottom to the surface by the effect of the strong tidal mixing (Mann and Lazier, 2006), the success of many planktonic organisms would be difficult because of the mechanical stress due to turbulence (e.g., Carreto et al, 1986;Liu et al, 2003;Mianzan et al, 2010;Munk, 1993;Sabatini and Martos, 2002).…”

“…It has been shown that small hake larvae are retained in the stratified zone of a tidal front through a vertical migratory behavior, taking advantage of the existence of a two-layer water flow that would allow horizontal transport (Álvarez-Colombo et al, 2011). This behavior has been observed in several zooplankton organisms that are retained in highly productive systems such as fronts (Andersen et al, 2004;Morgan et al, 1997;Naylor, 2010;Perry et al, 1993;Schmitt et al, 2011). In that sense, it could be expected that a similar behavior of copepods would be the main mechanism responsible for the movement of this group to the different zones of the tidal frontal system, allowing them to explore zones profitable for its development.…”

Comparing Physical Collection and Environmental DNA Methods for Determining Abundance Patterns of Gammarus Species along an Estuarine Gradient

“…In contrast, most light-trap captures were the species G. mucronatus and G. lawrencianus. Closely related to G. lawrencianus [54], G. annulatus has adopted a divergent pelagic life history and is more frequently captured during night trawls despite having similar day/night abundances [53,73]. Likewise, G. lawrencianus are more prevalent in light-trap samples relative to raking, but this effect is zone-dependent.…”

Larval lobster ( Homarus americanus ) distribution and drift in the vicinity of the Gulf of Maine offshore banks and their probable origins

“…These plankton assemblages provide insight into the possibility of transport of lobster larvae off Georges Bank into the Gulf of Maine. The late summer mesoplankton distributions correspond closely to the published early summer results along the same transect (Perry et al, 1993). The similarity we observed between the micro-and mesoplankton distributions suggests that the divergent swimming abilities are less important than either the environmental characteristics or the physical forces in maintaining discrete distributions.…”

“…These plankton assemblages provide insight into the possibility of transport of lobster larvae off Georges Bank into the Gulf of Maine. The late summer mesoplankton distributions correspond closely to the published early summer results along the same transect (Perry et al. , 1993).…”

Influence of a tidal front on zooplankton abundance, assemblages and life histories in Península Valdés, Argentina

“…As occur in many tidal fronts (e.g., Liu et al, 2003;Perry et al, 1993;Schultes et al, 2013), the lowest zooplankton abundance and Chl-a values were found in the mixed zone. Although this zone is characterized by the presence of suspension detritus (Carreto et al, 1986;Li et al, 2007) and high nutrient concentrations, which are resuspended from the bottom to the surface by the effect of the strong tidal mixing (Mann and Lazier, 2006), the success of many planktonic organisms would be difficult because of the mechanical stress due to turbulence (e.g., Carreto et al, 1986;Liu et al, 2003;Mianzan et al, 2010;Munk, 1993;Sabatini and Martos, 2002).…”

“…It has been shown that small hake larvae are retained in the stratified zone of a tidal front through a vertical migratory behavior, taking advantage of the existence of a two-layer water flow that would allow horizontal transport (Álvarez-Colombo et al, 2011). This behavior has been observed in several zooplankton organisms that are retained in highly productive systems such as fronts (Andersen et al, 2004;Morgan et al, 1997;Naylor, 2010;Perry et al, 1993;Schmitt et al, 2011). In that sense, it could be expected that a similar behavior of copepods would be the main mechanism responsible for the movement of this group to the different zones of the tidal frontal system, allowing them to explore zones profitable for its development.…”

Comparing Physical Collection and Environmental DNA Methods for Determining Abundance Patterns of Gammarus Species along an Estuarine Gradient

“…In contrast, most light-trap captures were the species G. mucronatus and G. lawrencianus. Closely related to G. lawrencianus [54], G. annulatus has adopted a divergent pelagic life history and is more frequently captured during night trawls despite having similar day/night abundances [53,73]. Likewise, G. lawrencianus are more prevalent in light-trap samples relative to raking, but this effect is zone-dependent.…”