The Relationships among Food, Temperature, and Gonad Development of the Bay Scallops Aequipecten irradians Lamarck

Sastry, A. N.

doi:10.1086/physzool.41.1.30158483

Cited by 105 publications

(44 citation statements)

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“…These authors showed that mussels collected from different natural populations and maintained in the laboratory with or without food exhibited a male-biased shift in sex ratio under starvation conditions within a month (Stenyakina et al 2010). This is also in agreement with previous observations in natural populations of hermaphroditic scallops (Sastry 1968) that showed a correlation between a higher proportion of males and a combination of low food supply and cooler temperatures. Similar patterns have also been demonstrated in laboratory reared and natural populations of Pacific oysters (Lango-Reynoso 1999; Chávez-Villalba et al 2011); i.e., a sex ratio in favor of females was noted when food availability conditions were favorable.…”

Section: Temperaturesupporting

confidence: 93%

Sex Determining Mechanisms in Bivalves

Breton¹,

Capt²,

Guerra³

et al. 2017

Preprint

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Abstract:In this review, we provide an overview of the current knowledge on the different sexual systems and sex determining mechanisms in bivalves, with a focus on the various epigenetic and genetic factors that may be involved. The final section of the review provides recent discoveries on sex-specific mitochondrial genes in bivalves possessing the unconventional system of doubly uniparental inheritance of mitochondria (which is found in several members of the orders Mytiloida, Unionoida, Veneroida and Nuculanoida). The genes involved in this developmental pathway could represent the first sex determination system in animals in which mitochondrially-encoded genes are directly involved.

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Section: Temperaturesupporting

confidence: 93%

Sex Determining Mechanisms in Bivalves

Breton¹,

Capt²,

Guerra³

et al. 2017

Preprint

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“…However, several authors (e.g. Sastry 1968;Giese 1974;Sastry 1979) have mentioned that the reproductive cycle of suspension feeders is not only influenced by physical parameters such as SST, but also by changes in phytoplankton biomass and species compositions. The increase of chlorophyll a concentrations in the Buenos Aires shelf region observed during winter and summer by Carreto et al (1995) with a main peak in spring and a secondary peak in autumn, correspond considerably with the dominance of M. mactroides in ripe and spawning stages (Fig.…”

Section: Reproduction Cyclementioning

confidence: 99%

Reproductive cycle and gonad development of the Northern Argentinean Mesodesma mactroides (Bivalvia: Mesodesmatidae)

et al. 2009

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The reproductive cycle and gonad development of the yellow clam Mesodesma mactroides was studied over a period of 24 months (January 2005-December 2006 at the Argentinean sandy beach Santa Teresita. Histological examination of gonadal tissue revealed that sex ratios did not significantly deviate from the proportion of 1:1 and no case of hermaphroditism was found. The reproductive cycle of M. mactroides followed an annual cyclicality, which was significantly correlated to monthly mean sea surface temperatures (SST). Oocytes showed highest abundance in winter, indicating a process of gonadal development and sexual maturation. The mean oocyte size decreased significantly during spring. Modal oocyte sizes decreased significantly during winter and late spring of each year, suggesting spawning events. The condition index was not useful in describing the annual reproductive cycle of M. mactroides. Ash-free, shell-free dry mass was chosen to detect the condition of the specimens, and this significantly correlated with monthly mean SST and the gametogenic cycle. Annual recruitment patterns during summer-autumn indicated a 3-month-long planktonic phase of M. mactroides. The reproduction cycle and gonad development of M. mactroides showed only weak differences between data from the present study and those collected 40 years ago.

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“…이매패류의 생식소 발달 및 성숙은 수온 (Turner and Hanks, 1960;Sastry, 1966Sastry, , 1968, 먹이생물 (Sastry, 1966(Sastry, , 1968, 일조시간 (Simpson, 1982) 등과 관련이 있으며 해역의 환경에 따라 생식소의 발달이 달라진다 (Chang, 1991). 큰가리비는 매우 낮은 온도에서도 성숙이 진행된다고 알려져 있다 (Chang et al, 1985).…”

Section: 해만가리비 산란 및 유생사육 연구unclassified

Growth Characteristics of Bay Scallop (Argopecten irradians) reared in the Southern East Sea

Lee¹,

Shim²,

Kim³

et al. 2015

The Korean Journal of Malacology

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Bay scallop (Argopecten irradians) has been farmed only in the South Sea of Korea. East Sea Fisheries Research Institute (ESFRI) has developed bay scallop aquaculture technologies to extend its aquaculture area to the Southeast Sea of Korea. For the artificial spawning, the water temperature was maintained at 23℃. Over 100,000,000 eggs were spawned through artificial spawning inductions, such as air exposure and thermal shock by rising the water temperature. The fertilization rate was over 91% with nearly 94,000,000 fertilized eggs. The shape of fertilized eggs was spherical with an average diameter of 61.7 ± 0.05 μm (54.1-67.4 μm). Five days after fertilization, the eggs developed into prodissoconch shell, and continuously grew into umbo stage and then umbones stage. After 8 days of fertilization, the size of larva became 179.7 ± 8.4 μm on average (150.4-204.8 μ m), and the larva formed a foot and an eye spot. The larvae grew to 235.4 ± 9.7 μm in 10 days and attached to adherence material, becoming juvenile bay scallop. The shells grew from 22.71 mm to 72.40 mm in 6 month (June-December). The total weight increased from 2.0 g to 32.7 g at the same period. The daily growth rates of young scallop were 0.35 mm d -1 (Apr. to Jun.) and 0.41 mm d -1 (Jun. to Aug.), which were comparable to those found in the South Sea. These findings suggest that the bay scallop aquaculture may be suitable in the Southeast Sea of Korea and may provide an additional crop to aquaculturists.

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The Relationships among Food, Temperature, and Gonad Development of the Bay Scallops Aequipecten irradians Lamarck

Cited by 105 publications

References 0 publications

Sex Determining Mechanisms in Bivalves

Sex Determining Mechanisms in Bivalves

Reproductive cycle and gonad development of the Northern Argentinean Mesodesma mactroides (Bivalvia: Mesodesmatidae)

Growth Characteristics of Bay Scallop (Argopecten irradians) reared in the Southern East Sea

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