Sediment resuspension rates, organic matter quality and food utilization by sea scallops (&lt;I&gt;Placopecten magellanicus&lt;/I&gt;) on Georges Bank

Grant, Jonathan; Cranford, Peter J.; Emerson, Craig

doi:10.1357/0022240973224193

Cited by 49 publications

(27 citation statements)

References 70 publications

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“…Increased consumption of low-quality food has also been observed for shellfish during wind-driven resuspension events. Although high wind velocity increased seston availablilty for shellfish feeding, the fraction of quality seston was negatively correlated with wind velocity (Frechette and Grant 1991;Grant et al 1997;Smaal and Haas 1997). In the present study, relatively empty stomachs and increased ingestion of low-energy food resulted in significantly lower mean caloric intake with increasing wind speed.…”

Section: Discussioncontrasting

confidence: 39%

“…Wind-driven resuspension events introduce small organisms and organic seston into the water column that can be utilized by grazers and suspension and deposit feeders (Bell and Sherman 1980;Frechette and Grant 1991;Grant et al 1997;Gremare et al 1997). While a few studies have examined the relationship between wind events and production among benthic and planktonic organisms (Frechette and Grant 1991;McKinnon and Ayukai 1996;Smaal and Haas 1997;Lawrence et al 2004), the influence of high-velocity wind on the diets and potential growth of estuarine fishes Leggett 1989a, 1989b;Hewett and Kraft 1993) has been largely neglected, although the effects of turbidity on feeding by larval and juvenile fish has been studied both in laboratory and field settings (Auld and Schubel 1978;Blaber 1987a, 1987b;Grecay and Targett 1996;Abrahams and Kattenfeld 1997;Fiksen et al 2002;Gadomski and Parsley 2005;Meager et al 2005).…”

mentioning

confidence: 99%

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The Effects of Front‐Associated Wind Events and Resultant Sediment Resuspension on Dietary Habits and Caloric Intake of Bay Anchovy and Age‐0 Atlantic Croaker in Mobile Bay, Alabama

Jackson

Cowan

2013

Mar Coast Fish

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We examined the effects of wind‐driven sediment resuspension on the stomach fullness, prey composition, and caloric intake of Bay Anchovy Anchoa mitchilli, a particulate planktivore, and age‐0 Atlantic Croaker Micropogonias undulatus, a benthic omnivore, in Mobile Bay, Alabama. Mobile Bay is a shallow estuary in the northern Gulf of Mexico with substrates ranging from silt to small sand. High‐wind events were associated with cold fronts and were characterized by wind velocities ≥4.0 m/s. Bay Anchovy stomachs were less full during such events and gut contents contained greater contributions by low‐calorie items. Atlantic Croaker stomach fullness did not differ significantly with wind speed. However, prey composition during high‐wind events shifted toward high‐calorie items. These scenarios imply that high‐wind events in Mobile Bay could have an adverse effect on energy uptake by resident Bay Anchovy but may benefit energy uptake by Atlantic Croaker.Received December 14, 2012; accepted March 23, 2013

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Section: Discussioncontrasting

confidence: 39%

mentioning

confidence: 99%

The Effects of Front‐Associated Wind Events and Resultant Sediment Resuspension on Dietary Habits and Caloric Intake of Bay Anchovy and Age‐0 Atlantic Croaker in Mobile Bay, Alabama

Jackson

Cowan

2013

Mar Coast Fish

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“…For example, re-suspensions of bottom sediment by tide or wind (Grant et al, 1997) and changes in phytoplankton abundance (Fréchette and Bourget, 1987) may cause food particle concentrations to fluctuate. Previous studies have clearly established that scallops track these fluctuations using tactile and chemosensory cues (MacDonald et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

Scallops visually respond to the size and speed of virtual particles

Speiser

Johnsen

2008

Journal of Experimental Biology

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SUMMARY The unique eyes of scallops are abundant along the right and left valve mantle margins. These eyes form images by reflection off a concave spherical mirror, and give scallops an angular resolution of around 2°, far better than the 13–40° angular resolution provided by the eyes of other bivalves. It has been argued that bivalve mantle eyes primarily act as predator detectors, but behavioral studies have suggested that vision may serve additional purposes in scallops. By placing specimens of the bay scallop Argopecten irradians (Lamarck 1819) in a tank with 5–10 cm s–1 flow, showing them simulated images of moving particles,and recording their behavior, we tested whether visual cues may influence feeding behavior in these animals. We found that scallops opened their anterior mantle gapes significantly more often when they were shown 1.5×1.5 mm virtual particles (with angular sizes of 3.4°) than when they were shown 0.6×0.6 mm particles (1.4°; P<0.001) or no particles at all (P<0.05). We also found that scallops opened their anterior mantle gapes significantly more often when they were shown virtual particles moving at 2.5 cm s–1 (P<0.01)or 5 cm s–1 (P<0.05) than when they were shown particles moving at 10 cm s–1. Because scallops must open their anterior mantle gapes to feed, our findings suggest that these animals may visually detect the size and speed of moving particles and use this information to help identify favorable feeding conditions.

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“…Field measurements have demonstrated that regular resuspension of the fine sediment at the Frisian Front dilutes food concentrations and lowers food quality for suspension feeders (Duineveld & Boon 2002). This may explain the depressed growth rates in fine-grained sediments, as is the case in other areas with frequent resuspension (Emerson 1990, Turner & Miller 1991, Bock & Miller 1994, Urrutia et al 1996, Grant et al 1997, Cranford et al 1998, Gremare et al 1998.…”

Section: Discussionmentioning

confidence: 99%

“…Food quality is probably another important factor that determines growth. Circumstantial and experimental evidence (Grant et al 1997, Cranford et al 1998, Witbaard et al 2001 suggests that resuspension of fine sediment causes a decline in food quality, which leads to depressed shell growth in bivalves. Resuspension of fine sediments in the shallow SE North Sea is caused by a combination of tidal and wave currents.…”

Section: Introductionmentioning

confidence: 99%

Growth trends in three bivalve species indicate climate forcing on the benthic ecosystem in the southeastern North Sea

Witbaard¹,

Duineveld²,

Amaro³

et al. 2005

Clim. Res.

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Internal growth lines in shells of 3 suspension-feeding bivalves (Arctica islandica, Mya truncata and Chamelea striatula) from the SE North Sea were analysed in search of common interannual variations of their growth rate. The high similarity (69 to 80%) between the growth records in the 3 species suggests that a large-scale (climatic) factor is responsible for an important part of the variation in annual shell growth. The common trend extracted from the individual growth records was correlated with monthly data on phytocolour, NAO index, temperature and wind. The strength and sign of the effect of the last 3 factors varied seasonally. Effects of wind strength and direction were analysed in detail, as in situ measurements showed that wind speeds >10 m s -1 (Beaufort 6) cause resuspension of fine sediment at the site where the bivalves were collected. Resuspended sediment causes a drop in the quality of food for suspension feeders. During the bivalve growing season, northwesterly to easterly winds tended to depress growth, whereas winds with a westerly component mainly had a positive effect. Strong winds from a WNW direction in May, however, had a negative effect and could explain the highest proportion of variance in the common growth trend; WNW winds have a long fetch at the study area and generate (high) long waves, facilitating resuspension of fine sediment at relatively low wind speeds.

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Sediment resuspension rates, organic matter quality and food utilization by sea scallops (<I>Placopecten magellanicus</I>) on Georges Bank

Cited by 49 publications

References 70 publications

The Effects of Front‐Associated Wind Events and Resultant Sediment Resuspension on Dietary Habits and Caloric Intake of Bay Anchovy and Age‐0 Atlantic Croaker in Mobile Bay, Alabama

The Effects of Front‐Associated Wind Events and Resultant Sediment Resuspension on Dietary Habits and Caloric Intake of Bay Anchovy and Age‐0 Atlantic Croaker in Mobile Bay, Alabama

Scallops visually respond to the size and speed of virtual particles

Growth trends in three bivalve species indicate climate forcing on the benthic ecosystem in the southeastern North Sea

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