The reproductive biology of female crimson sea bream Evynnis tumifrons off the southwestern coast of Kyushu, Japan

Havimana, Lindon; Ohtomi, Jun; Masuda, Yasuji; Archdale, Miguel Vázquez

doi:10.1007/s12562-019-01380-6

Cited by 3 publications

(9 citation statements)

References 20 publications

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“…It has been demonstrated that the histological method is more accurate for estimating size at maturity [33,56]. In accordance with the recommendation of [31], we thereby suggest using histological techniques to estimate size at sexual maturity.…”

Section: Discussionsupporting

confidence: 78%

“…This method is the most accurate method currently available for evaluating the fish's maturity state [36,39,40]. C. whiteleggii showed an asynchronous ovary, a phenomenon also reported in other fish species of different taxonomic families including those from the similar geographic location such as Apogon lineatus [43], Nemipterus bathybius [30], Gerres equulus [44], and Evynnis tumifrons [31]. The ovarian maturity stages of C. whiteleggii were therefore classified based on the appearance of the most advanced oocytes, post-ovulatory follicles (POF), and atretic oocytes into six categories (immature, maturing, mature, spawned, spent, and resting).…”

Section: Discussionmentioning

confidence: 66%

“…A similar discrepancy in the estimated size at sexual maturity was also reported for Evynnis tumifrons. While Havimana et al [31] evaluated the minimum size of mature female E. tumifrons as 161 mm fork length (FL) and FL 50 as 179 mm, based on the histological approach, Anzawa et al [55] calculated the minimum size of mature female E. tumifrons as 170 mm FL from its GSI. It has been demonstrated that the histological method is more accurate for estimating size at maturity [33,56].…”

Section: Discussionmentioning

confidence: 99%

“…The tissues were cut into sections of 4 to 6 µm thickness, fixed in paraffin, and stained with Mayer's hematoxylin and eosin. The developmental stages of oocytes were classified according to Yamamoto [29], Granada et al [30], and Havimana et al [31] with some adjustments for this species, and the histological classification of atretic oocytes and post-ovulatory follicles followed Hunter and Macewicz [32]. The presence of the most advanced oocytes, post-ovulatory follicles, and atretic oocytes served as indicators of ovarian maturity estimation [30,31,[33][34][35].…”

Section: Histological Analysis and Measurement Of Oocytesmentioning

confidence: 99%

“…The developmental stages of oocytes were classified according to Yamamoto [29], Granada et al [30], and Havimana et al [31] with some adjustments for this species, and the histological classification of atretic oocytes and post-ovulatory follicles followed Hunter and Macewicz [32]. The presence of the most advanced oocytes, post-ovulatory follicles, and atretic oocytes served as indicators of ovarian maturity estimation [30,31,[33][34][35]. Oocytes that had been sectioned through the nucleus were measured under a microscope to determine their sizes.…”

Section: Histological Analysis and Measurement Of Oocytesmentioning

confidence: 99%

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First Report on Reproductive Features of Shadow Driftfish Cubiceps whiteleggii (Perciformes: Nomeidae): An Effort toward Sustainable Management

et al. 2022

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Fish of the Nomeidae family are a significant part of marine food webs and are an emerging fisheries resource. The formulation of sustainable management and conservation strategies is constrained by the lack of comprehensive research on the population biology of any of these species. We, therefore, studied reproductive aspects of Cubiceps whiteleggii as a representative of Nomeidae. We used a biological index (gonadosomatic index), as well as macroscopic (visual observations of the surface and transverse ovary sections) and microscopic analyses, in search of proxies for estimating the ovarian maturity status. Samples were collected from April 2014 to December 2017 in Kagoshima Bay, Japan. Asynchronous ovary development in C. whiteleggii indicated multiple spawning during a single reproductive season. Ovarian maturity stages were divided into six groups based on the appearance of the most advanced oocytes, post-ovulatory follicles, and atretic oocytes: immature, maturing, mature, spawned, spent, and resting. Females with ovaries at mature or spawned stages were defined as sexually mature individuals. The size at 50% sexual maturity was estimated to be 126 mm standard length. The spawning season was estimated to last from July to November. Both biological and macroscopic indices were found unsuitable to be used as independent indices in estimating reproductive aspects requiring scientists and managers to search for better alternatives. The conceptualization of appropriate management protocols for the fishery should be aided by these findings, which are the sole knowledge available on the reproductive features of this species. This will ensure its sustainable harvest and make it easier to conduct future research on fish reproduction.

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Section: Discussionsupporting

confidence: 78%

Section: Discussionmentioning

confidence: 66%

Section: Discussionmentioning

confidence: 99%

Section: Histological Analysis and Measurement Of Oocytesmentioning

confidence: 99%

Section: Histological Analysis and Measurement Of Oocytesmentioning

confidence: 99%

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First Report on Reproductive Features of Shadow Driftfish Cubiceps whiteleggii (Perciformes: Nomeidae): An Effort toward Sustainable Management

et al. 2022

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Age and growth of crimson sea bream Evynnis tumifrons off the southwestern coast of Kyushu, Japan

et al. 2020

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Reproductive characteristics of the hermaphroditic four-finger threadfin, Eleutheronema tetradactylum (Shaw, 1804), in tropical coastal waters

Soe,

Iqbal,

Lim

et al. 2023

BMC Zool

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This study investigated the reproductive traits of the hermaphroditic four-finger threadfin, Eleutheronema tetradactylum, along the coasts of Thailand during January to December 2021. Fish samples were collected from Pattani Bay, Thailand to assess the sex ratio, gonadosomatic index (GSI), maturity stage and fecundity. Additional fish samples were also collected from other areas to evaluate the length and weight at first sex change (Ls50 and Ws50) and length at first maturity (Lm50). The overall sex ratio for male and female was 1:0.69 with male being predominant throughout the year. Threadfin fish spawn the whole year round with peaks during moderate rainy and heavy rainy seasons. Histological examination confirmed its protandrous hermaphrodite posing multiple spawning habits. The average fecundity was 1.85 × 105 ± 1.05 × 105 eggs and positively related with standard length, body weight, gonad weight, and egg diameter (p < 0.05). The Ls50 and Ws50 were 27.58 cm and 419.39 g, and 29.71 cm and 457.28 g, for fish from Pattani Bay and Samut Prakan province, respectively. The Lm50 of male from Pattani Bay and Samut Prakan province were 25.78 cm and 25.56 cm, respectively, which were larger than those from Satun and Nakhon Sri Thammarat provinces. The Lm50 of females from Pattani Bay was smaller than that from Samut Prakan province. This study provided fundamental information on the reproductive characteristics of E. tetradactylum, which can be implemented to support management of natural fish stock and aquaculture development.

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The reproductive biology of female crimson sea bream Evynnis tumifrons off the southwestern coast of Kyushu, Japan

Cited by 3 publications

References 20 publications

First Report on Reproductive Features of Shadow Driftfish Cubiceps whiteleggii (Perciformes: Nomeidae): An Effort toward Sustainable Management

First Report on Reproductive Features of Shadow Driftfish Cubiceps whiteleggii (Perciformes: Nomeidae): An Effort toward Sustainable Management

Age and growth of crimson sea bream Evynnis tumifrons off the southwestern coast of Kyushu, Japan

Reproductive characteristics of the hermaphroditic four-finger threadfin, Eleutheronema tetradactylum (Shaw, 1804), in tropical coastal waters

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