Growth and reproduction of early grow-out hardened juvenile Pacific oysters, Crassostrea gigas in Gamakman Bay, off the south coast of Korea

Mondol, Mostafizur Rahman; Chulwon, Kim; Kang, Chang‐Keun; Park, Sang Rul; Noseworthy, Ronald G.; Choi, Kwang-Sik

doi:10.1016/j.aquaculture.2016.05.047

Cited by 18 publications

(17 citation statements)

References 44 publications

(88 reference statements)

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“…A growth advantage of triploidy has been reported in several oyster species (Allen & Bushek, 1992;Allen & Downing, 1986, 1990Callam et al, 2016;Mondol et al, 2016;Zhang et al, 2016a). In the present study, triploids also showed a similar growth advantage.…”

Section: Growth Advantage In Triploidsupporting

confidence: 87%

“…Several previous studies about shellfish have reported that the growth of triploid larvae was faster than that of diploid larvae. A similar trend had been shown for oyster species (Allen & Bushek, ; Allen & Downing, , ; Callam et al, ; Mondol et al, ; Zhang et al, ), especially in triploids created by mating tetraploids with diploids (Guo et al, ). Polyploid gigantism is considered the main reason for the increased size of triploid larvae in the dwarf surf clam, Mulinia lateralis (Guo & Allen, ).…”

Section: Discussionsupporting

confidence: 75%

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Comparative studies of the growth, survival, and reproduction of diploid and triploid Kumamoto oyster, Crassostrea sikamea

Zhang

Xiao

et al. 2019

J World Aquaculture Soc

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Triploid oysters have been used for farming to improve growth but have not been created in the Kumamoto oyster, Crassostrea sikamea, which is one of the crucial aquaculture species on the southern coast of China. In the present study, triploids were created using cytochalasin B to inhibit polar body II release in C. sikamea, with the untreated oysters as controls. Triploidy rates of 87 and 57.67%, on average, were obtained in larvae and adults, respectively. Larval growth and survival of the triploid were significantly lower than that of the controls (p < 0.05). In contrast, the triploid postlarvae and adults had a significant growth advantage over the controls (p < 0.05) during the period of 180 (December) to 450 days (September of the next year). Moreover, the triploids clearly exhibited significant sterility in the reproductive season. The glycogen and triglyceride contents in the gonad, adductor muscle, mantle, and gill were higher in triploids than in controls from 180 to 450 days. As a result, high physiological energy supply was strongly correlated with superior growth and reduced reproduction in triploid C. sikamea. The triploid C. sikamea is an excellent oyster species and can be used to improve growth for C. sikamea farming.

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Section: Growth Advantage In Triploidsupporting

confidence: 87%

Section: Discussionsupporting

confidence: 75%

Comparative studies of the growth, survival, and reproduction of diploid and triploid Kumamoto oyster, Crassostrea sikamea

Zhang

Xiao

et al. 2019

J World Aquaculture Soc

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“…Interestingly, our estimation of tissue energy increases from June to February is much lower than the ~50 kJ recorded for longline-cultured 1-year-old oysters in Gamak Bay on the southern coast of Korea during the same period [ 67 , 68 ]. Such a site-dependent difference in tissue growth (1.74 g vs. 2.78 g in final DW in February) of longline oyster populations is correlated with annual primary productivity of phytoplankton in the Geoje–Hansan (9,450 t C) and Gamak (37,000 t C) Bays [ 29 ].…”

Section: Discussionmentioning

confidence: 74%

Physiological processes and gross energy budget of the submerged longline-cultured Pacific oyster Crassostrea gigas in a temperate bay of Korea

et al. 2018

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Physiological processes and gross energy budget of the longline-cultured Pacific oyster Crassostrea gigas were investigated in Geoje–Hansan Bay, Korea during two entire culturing periods. Based on physiological measurements of food consumption, feces production, ammonium excretion, and respiration from July 2008 to February 2009 and from July 2013 to February 2014, scope for growth appeared to be positive during most of the culturing period, except for one period with extremely high temperatures (up to 25°C). Estimates of physiological energy production matched well with tissue energy increment measured by gross biochemical composition during the culturing period, suggesting that the oysters might adjust their physiological performance to relatively low concentrations of suspended particulate matter in the bay to optimize energy acquisition. Such an adaptive adjustment includes an increased absorption of energy and a reduced loss of metabolic and excretory energy, resulting in positive production under high culturing density. Using physiological measurements, we further assessed the feedback effects of the longline aquaculture of oysters on the bay system. Ecological efficiency, estimated by a series of energetic efficiencies at the whole bay level, was low compared with Lindeman’s law of trophic efficiency. Biodeposition and ammonia excretion rates in this study were relatively low compared with other intertidal plastic bag cultures. These results indicate that the cultured oysters might have only minor effects on benthic and pelagic environments of the bay. Overall, our results suggest that the adaptive physiological performance of oysters and consequently weak feedback effects on ambient habitats should facilitate sustainable longline aquaculture in the bay for a prolonged period without severe habitat deterioration.

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“…Microscopic images of the gonad in different reproductive stages were digitized using a digital camera connected to a microscope. The maturity of the gonads was grouped into six stages according to Drumond et al (2006) and Mondol et al (2016), (1) resting, (2) early developing, (3) late-developing, (4) ripe, (5) partially spawning, and (6) spent. The oocyte size (i.e., the diameter) was measured from the digitized microscopic images of the gonads using ImageJ software (National Institute of Health, USA).…”

Section: Biometry and Histologymentioning

confidence: 99%

“…In marine bivalve aquaculture, the planktonic larvae in the water are often induced to settle on artificial substrata, and the settled larvae are served as the seeds. Accordingly, understanding the annual gametogenesis is crucial to forecast the spawning period and subsequent spat harvest from the environment (Ventilla 1984;Arakawa 1990;Ngo et al 2006;Uddin et al 2007Uddin et al , 2012Mondol et al 2016). Unlike the south coast, the rocky shallow east coast of Korea is dominated by the Gray mussel Crenomytilus grayanus, which occurs at a high density on a shallow subtidal rocky substrate (Galysheva 2008;Lutaenko and Noseworthy 2019;Selin and Dulenina 2012).…”

Section: Introductionmentioning

confidence: 99%

Report on the Annual Gametogenesis and Tissue Biochemical Composition in the Gray mussel, Crenomytilus grayanus (Dunker 1853) in the Subtidal Rocky Bottom on the East Coast of Korea

et al. 2021

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The Gray mussel Crenomytilus grayanus occurs in high density in the shallow rocky subtidal zone on the east coast of Korea, where the mussel dominates the shallow subtidal benthic community. In this study, we first examined the annual gametogenesis and temporal changes in the tissue composition, which provides crucial information to the management of the mussel on the east coast. Based on histological analysis, oogenesis and spermatogenesis commenced in September, as the small oogonia (16.67 ± 4.87 µm in diameter) and spermatogonia developed on the follicle walls, respectively. In March, the mature oocytes (46.55 ± 9.91 µm in diameter) and spermatozoa dominated the follicle. During May and June, most of the males and females spawned when the surface seawater temperature (SST) increased from 15.5 to 22.3 °C. The total carbohydrate level in the tissue increased dramatically from April to May, which coincided with the chlorophyll-a maximum occurring in April. Condition index, a ratio of tissue weight to shell weight, also increased from February to May and then declined in June, suggesting that most mussels released the gametes through spawning during these months. Our data suggest that C. grayanus is a spring spawner, and the onset of gametogenesis and subsequent spawning is closely linked to the seasonal changes in the water temperature and food availability in the water column.

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Growth and reproduction of early grow-out hardened juvenile Pacific oysters, Crassostrea gigas in Gamakman Bay, off the south coast of Korea

Cited by 18 publications

References 44 publications

Comparative studies of the growth, survival, and reproduction of diploid and triploid Kumamoto oyster, Crassostrea sikamea

Comparative studies of the growth, survival, and reproduction of diploid and triploid Kumamoto oyster, Crassostrea sikamea

Physiological processes and gross energy budget of the submerged longline-cultured Pacific oyster Crassostrea gigas in a temperate bay of Korea

Report on the Annual Gametogenesis and Tissue Biochemical Composition in the Gray mussel, Crenomytilus grayanus (Dunker 1853) in the Subtidal Rocky Bottom on the East Coast of Korea

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