Mechanisms promoting upriver transport of larvae of two fish species in the Hudson River estuary

Schultz, Eric T.; Lwiza, Kamazima M. M.; Fencil, Megan; Martin, Jennifer

doi:10.3354/meps251263

Cited by 33 publications

(32 citation statements)

References 36 publications

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“…stratification by abiotic and biotic factors) (Dobretsov & Miron 2001), but this process is poorly understood. In shallow coastal seas, larvae have been shown to control the direction of net travel by ascending into the water column at certain states of the tide (flood, ebb, high or low water) and descending to the bottom during others (Schultz et al 2003). However, in the absence of detailed knowledge of behaviour, larvae are considered in most cases to behave as passive particles and their movements are predicted by hydrodynamic models incorporating only the duration of larval life (Roberts 1997).…”

Section: Introductionmentioning

confidence: 99%

Mechanisms of larval transport: vertical distribution of bivalve larvae varies with tidal conditions

Knights

Crowe²,

Burnell³

2006

Mar. Ecol. Prog. Ser.

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Larval transport is a key process in the life-history and population dynamics of many marine species. It is strongly influenced by ocean currents, but the influence of behavioural traits of larvae (e.g. vertical migration) on their advective dispersal is poorly understood. In the absence of field data, predictions of population connectivity are often based on hydrodynamic models and assume that larvae behave as passive particles. Variations in the vertical distribution of early and late stage larvae of Mytilus spp. were investigated in a field study in the Irish Sea, collecting discrete water samples by Niskin sampler at a range of depths at different tidal states and phases at 2 sites and on 2 dates during summer 2005. Larvae were homogenously distributed throughout the water column during flood tide, whereas larvae we more densely aggregated in middle and bottom waters during ebb tide. Highest densities were greatest near the bottom during low flow conditions. Larval size had no effect on the patterns of vertical distribution of larvae in the water column. The relative lack of larvae in the water column during ebb tides compared to flood tides could lead to significant net transport in the direction of flood tides. If this is a widespread phenomenon, models based on the assumption that larvae behave as passive particles are unlikely to predict dispersal distances correctly.

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Section: Introductionmentioning

confidence: 99%

Mechanisms of larval transport: vertical distribution of bivalve larvae varies with tidal conditions

Knights

Crowe²,

Burnell³

2006

Mar. Ecol. Prog. Ser.

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“…Alternatively, passive transport mechanisms, which result in transport/advection to the receiving waters, such as residual bottom inflow (Joyeux 1999, Schultz et al 2003) and wind-driven transport (Shaw et al 1985, Joyeux 1999, may also explain larval ingress into bays and estuaries. The actual mechanisms seem to be species and location specific and often are a combination of both active and passive mechanisms .…”

Section: Introductionmentioning

confidence: 99%

Patterns of larval Atlantic croaker ingress into Chesapeake Bay, USA

Schaffler¹,

Reiss²,

Jones³

2009

Mar. Ecol. Prog. Ser.

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We compared ingress patterns of Atlantic croaker Micropogonias undulatus larvae into Chesapeake Bay, USA, with published ingress patterns through barrier island inlets, the accepted model for larval fish ingress. This model asserts that larvae ingress on night flood tides at the flooddominated side of the inlet and at all depths. At the Chesapeake Bay mouth and in the adjacent coastal waters, we compared the distribution of abundance, size, age, and growth rates of croaker prior to ingress. In contrast to the barrier island inlet model, croaker larvae were more abundant at depth than closer to the surface regardless of location. However, the response to light was variable, where croaker larvae farther offshore showed no response to light, but croaker larvae in the bay mouth were more abundant at night. Croaker larvae followed an expected pattern of increasing age and length from offshore stations to the bay mouth station. Further, among nearshore coastal stations there was evidence of larger and older croaker larvae at the northern portion of the bay mouth than at middle or southern stations. Patterns in growth were similar at all locations, indicating the likelihood of a single source location or similar environments among transport pathways for croaker larvae. Ingress can occur across the entire mouth of Chesapeake Bay; however, net tidal inflow may result in age and size structuring, which allows more rapid movement into the northern flooddominated portions of the bay mouth.KEY WORDS: Larval ingress · Atlantic croaker · Chesapeake Bay · Depth · Daily age Resale or republication not permitted without written consent of the publisher

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“…Larval ingress can be driven by active mechanisms like selective tidal stream transport, but the vertically well-mixed nature of tidal passes in the northern GOM and particularly in our sampling site of Bayou Tartellan indicates that the driving forces are passive mechanisms of recruitment and retention, such as residual bottom flow (Joyeux, 1999;Schultz et al, 2003), wind-driven transport (Shaw et al, 1985;Joyeaux, 1999;Hare et al, 1999;Hare and Govoni, 2005), or flow differentials across channels due to boundary conditions and marsh edge effects (Lyczkowski-Shultz et al, 1990;Raynie, 1991;Raynie and Shaw, 1994;Kupchik, 2014). Growth rates for Atlantic croaker larvae collected in water masses with salinities and temperatures consistent with continental shelf waters were lower than growth rates for larvae collected in water masses with characteristics associated with estuarine or coastal boundary waters.…”

Section: Discussionmentioning

confidence: 99%

Age, growth, and recruitment of larval and early juvenile Atlantic croaker (Micropogonias undulatus), determined from analysis of otolith microstructure

Kupchik¹,

Shaw²

2016

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Mechanisms promoting upriver transport of larvae of two fish species in the Hudson River estuary

Cited by 33 publications

References 36 publications

Mechanisms of larval transport: vertical distribution of bivalve larvae varies with tidal conditions

Mechanisms of larval transport: vertical distribution of bivalve larvae varies with tidal conditions

Patterns of larval Atlantic croaker ingress into Chesapeake Bay, USA

Age, growth, and recruitment of larval and early juvenile Atlantic croaker (Micropogonias undulatus), determined from analysis of otolith microstructure

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