Clearance effects of the Pacific oyster Crassostrea gigas on the fish-killing algae Chattonella marina and Chattonella antiqua

Nagasoe, Sou; Suzuki, Kengo; Yurimoto, Tatsuya; Fuseya, Reiko; Fukao, Tsuyoshi; Yamatogi, Toshifumi; Kimoto, Katsunori; Maeno, Yukio

doi:10.3354/ab00295

Cited by 7 publications

(7 citation statements)

References 42 publications

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“…Based on our results, we suggest, as did Nagasoe et al (2011), that the Manila clam can potentially prevent red-tide flagellates such as H. akashiwo from bloom- ing in the field. Therefore, the recovery of the stock of R. philippinarum is an important issue, not only because of declining catches but also because of environmental problems related to red tides and eutrophication.…”

mentioning

confidence: 95%

“…and previous studies (Yokote & Honjo 1985, Honjo 1993, Nagasoe et al 2011 suggested the potential of Heterosigma akashiwo as an algal diet for Ruditapes philippinarum. The body-mass index and glycogen content of the group fed H. akashiwo were significantly higher than the control group fed Chaetoceros neogracile (Table 1, Fig.…”

mentioning

confidence: 99%

“…This species is a harmful algal bloom (HAB) species that has caused serious damage to cultured fish in many coastal areas throughout the world (Honjo 1993, Smayda 1998, Imai & Itakura 1999, but there are no reports that this species affects bivalves, including R. philippinarum. Recently, Nagasoe et al (2011) examined the effects of the harmful raphidophytes Chattonella marina (Subrahmanyan) Hara & Chihara, 1982 and C. antiqua (Hada) Ono, 1980 on the Pacific oyster, Crassostrea gigas Thunberg, 1793, and found that no oysters died, even after exposure to high cell densities of both species. In addition, they reported that both species of Chattonella are good oyster diets, and note that the oyster is useful because it has the potential to clear the fish-killing flagellates from the environment (Nagasoe et al 2011).…”

mentioning

confidence: 99%

“…Recently, Nagasoe et al (2011) examined the effects of the harmful raphidophytes Chattonella marina (Subrahmanyan) Hara & Chihara, 1982 and C. antiqua (Hada) Ono, 1980 on the Pacific oyster, Crassostrea gigas Thunberg, 1793, and found that no oysters died, even after exposure to high cell densities of both species. In addition, they reported that both species of Chattonella are good oyster diets, and note that the oyster is useful because it has the potential to clear the fish-killing flagellates from the environment (Nagasoe et al 2011). Thus, as well as the genus Chattonella, it is possible that H. akashiwo could be a good diet for R. philippinarum.…”

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confidence: 99%

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Dietary effects of the red-tide raphidophyte Heterosigma akashiwo on growth of juvenile Manila clams, Ruditapes philippinarum

Taga¹,

Yamasaki²,

Kishioka³

2013

Plankton Benthos Res

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Abstract:We studied the effects of Heterosigma akashiwo, a harmful algal species, in the diet of juvenile Manila clams (Ruditapes philippinarum), because it often blooms in coastal waters where aquaculture of the clams is carried out. Weight of soft tissue of clams increased when they were fed H. akashiwo added at 8,000 cells mL 1 , with weight growth about 8% higher than that of clams fed only Chaetoceros neogracile. In addition, a significant increase in the body-mass index and glycogen content was observed when they were fed H. akashiwo compared with C. neogracile. Analysis of the chemical composition of H. akashiwo, C. neogracile, Pavlova lutheri and Nannochloropsis sp. showed a higher total sugar and acidic sugar content in H. akashiwo than in the other species, whereas the protein content was almost the same for all species except Nannochloropsis sp. These observations suggest the possibility that the sugar content of phytoplankton is an important factor affecting the growth of juvenile clams.

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confidence: 99%

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confidence: 99%

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confidence: 99%

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Dietary effects of the red-tide raphidophyte Heterosigma akashiwo on growth of juvenile Manila clams, Ruditapes philippinarum

Taga¹,

Yamasaki²,

Kishioka³

2013

Plankton Benthos Res

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“…Procedure 2: Measurement of clearance rate In order to examine the effect of sulfide, the measurement of the clams' clearance rate was made under laboratory normoxic conditions according to the method outlined by Nagasoe et al (2011). The clams used for this examination were the individuals that had been treated in Procedure 1.…”

Section: −mentioning

confidence: 99%

Effects of hydrogen sulfide on the feeding activity of Manila clam Ruditapes philippinarum

Nagasoe¹,

Yurimoto²,

Suzuki³

et al. 2011

Aquat. Biol.

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Adaptive feeding in the American oyster Crassostrea virginica: Complex impacts of pulsatile flow during pseudofecal ejection events

Wang

Song

et al. 2020

Limnology & Oceanography

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Adaptive feeding is a strategy used by many organisms to maintain growth and reproduction success while encountering varying feeding conditions. Oysters are sessile benthic and non-siphon filter feeders. Oysters are well adapted to modify the ambient microenvironment through their pumping behavior and particle selection activity. Rejection of unsuitable food particulates bound in pseudofeces via ejection events are an integral part of oyster feeding during which oysters produced strong flow opposite to their inhalant feeding flow. The strong opposite pulsatile flow during the ejection event inevitably disrupts the oyster's normal feeding cycle, but how oysters restart their feeding and allocate their energy consumption during an ejection event has not been investigated. The present study used particle image velocimetry (PIV) to examine the impact of ejection events on the feeding of the American oyster, Crassostrea virginica. The strong pulsatile flow resulting from pseudofecal ejection altered the external flow fields by moving water away from the shell. The initial feeding zone after pseudofecal ejection was relatively narrow, possessed a low pulsatile flow, and did not exploit the full flow field. The feeding zone gradually expanded as the pulsatile flow weakened. The strong shear rate at the stable feeding zone then sustained the feeding flow that facilitated oyster feeding. Furthermore, the volumetric fluxes often increased after the ejection event, suggesting increase in feeding efficiency after ejection events. These PIV studies provide new insight on the interactions between feeding oysters and the surrounding physical environment at small yet ecologically relevant scales. Oysters commonly reside in the shallow intertidal and subtidal zones where they are exposed to a wide range of environmental conditions (Bartol et al. 1999; Grizzle et al. 2003; Rick et al. 2016). Although well adapted to the dynamic environmental conditions found in estuaries, oyster feeding rates and particle sorting efficiencies are sensitive to a variety of biological factors such as live algae composition and concentration (

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Clearance effects of the Pacific oyster Crassostrea gigas on the fish-killing algae Chattonella marina and Chattonella antiqua

Cited by 7 publications

References 42 publications

Dietary effects of the red-tide raphidophyte Heterosigma akashiwo on growth of juvenile Manila clams, Ruditapes philippinarum

Dietary effects of the red-tide raphidophyte Heterosigma akashiwo on growth of juvenile Manila clams, Ruditapes philippinarum

Effects of hydrogen sulfide on the feeding activity of Manila clam Ruditapes philippinarum

Adaptive feeding in the American oyster Crassostrea virginica: Complex impacts of pulsatile flow during pseudofecal ejection events

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