Fecundity and Temporal Reproductive Cycle of Four Finger Threadfin (Eleutheronema tetradactylum) in Malaysian Coastal Water

Zamidi, I.; Samat, Alim; Zaidi, C. C.; Ghaffar, Mazlan Abd.; Alam, Gazi Mahabubul; Al‐Amin, Abul Quasem; Das, Simon Kumar

doi:10.3923/ajava.2012.1100.1109

Cited by 10 publications

(19 citation statements)

References 9 publications

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“…This sh is a protandrous hermaphrodite, which initially grows as male before changes to female at a certain age, thus more male is found in the coastal habitat. It is coincident with a report by Zamidi et al [14] who indicated that male sh dominated female from gillnets in Malaysia. Another study by Cheng et al [56] found that the ratio of female was 34.5% in the rst year of culture and changed to 90.3% after three years in the rearing pond.…”

Section: Discussionsupporting

confidence: 90%

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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

Preprint

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This study investigates reproductive traits of the hermaphroditic four-finger threadfin, Eleutheronema tetradactylum, along the coasts of Thailand during January 2021 and January 2022. Fish sample from Pattani Bay, Thailand was collected to assess sex ratio, gonadosomatic index (GSI), maturity stage and fecundity. Additional samples from other provinces were used to investigate length and weight at first sex change (Ls50 and Ws50) and length at first maturity (Lm50). It was found that the overall sex ratio for male and female was 1:0.69 with male predominated throughout the year. This fish spawned the whole year round with peak during moderate rainy season. Results from histological examination confirmed its protandrous hermaphrodite posing multiple spawning behavior. The average fecundity was 1.85 x 105 ± 1.05 x 105 eggs and positively related with standard length, body weight, gonad weight and egg diameter (P < 0.05). The Ls50 and Ws50 for fishes from Pattani Bay and Samut Prakan province were 27.58 cm, 419.39 g and 29.71 cm, 457.28 g, respectively. The Lm50 of male from Pattani Bay and Samut Prakan were 25.78 cm and 25.56 cm, respectively, considered larger than those from Satun and Nakhon Sri Thammarat provinces. The Lm50 of female from Pattani Bay was slightly smaller than that of Samut Prakan province. This study provides fundamental information on the reproductive characteristics of E. tetradactylum and can be implemented for both management of natural fish stock and future aquaculture development.

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Section: Discussionsupporting

confidence: 90%

“…It was reported that this sh had lengthy spawning period with peak in June in Malaysian coastal waters [14] and peak spawning period from October to December in the north-western part of Australia [8]. Those ndings also prove that habitat and season in uencing spawning pattern of this species.…”

Section: Discussionmentioning

confidence: 61%

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

Soe

Iqbal

Lim

et al. 2023

Preprint

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show abstract

“…The seasonal spawning potential between current and next spawning period in a female fish is being referred to as fecundity (Bichi et al, 2014). In Table 2, it is obvious that the weight of the brooder fishes and their fecundity are positively correlated as explained by The Fish Site, ( 2019), This shows that fecundity increases with the body weight of the fish as previously mentioned in the scientific report of Zamidi et al, (2012) on fecundity of Eleutheronema tetradactylum in Malaysian Coastal Water.…”

Section: Discussionmentioning

confidence: 62%

Egg Biopsy and Spawning Performance of Catfish (Burchell, 1822) using Ovaprim and Chicken Pituitary Hormone

2022

IJAB

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Study on egg biopsy and spawning performance of cat fish (Clarias gariepinus) induced with Ovaprim and Chicken Pituitary Hormone (CPH) was carried out to determine the effect of Ovaprim and CPH on fish egg (Oocyte) migration and the resultant effect on fertilization and hatchability percentages. Sixteen C. gariepinus brood stocks (sex ratio 2:1) between 1.1kg and 2.3kg in weight and four layers birds (Gallus gallus domesticus) between 1.2kg and 2.2kg in weight were used for the experiment. Extraction of CPH from layers birds was carried out to induce brood stock fishes. Treatment 1 was used for Ovaprim and replicated thrice whilst Treatment 2 was used for CPH and also replicated thrice. An indoor slow flow- through system vat measuring 2 ft x 6 ft x 1 ft each was used for the incubation. Water test kits and Table top scale were used to monitor essential physicochemical parameters and measurement of the fish brood stock and Chicken layers weights individually. The mean values of egg biopsy, fertilization and hatchability percentages in Ovaprim and CPH treatments was not significantly different at 5% level of probability. Also, there was no significant difference at 5% level of probability in the physiochemical parameters. This study showed that both Ovaprim and CPH induced egg ripening and migration of egg nucleus to the micropyle for effective fertilization and spawning in African catfish therefore, CPH could be recommended on the basis of spawning effectiveness and availability of the pituitary from the chicken slaughter/processing house with little or no cost.

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“…Berdasarkan hasil penelitian spesies ikan Kembung mencapai matang gonad pada kelas ukuran ukuran 18,03-22,09 cm (jantan) dan 19,10-19,52 cm (betina). Hal ini berarti ikan yang tertangkap belum sempat memijah, sehingga dapat menimbulkan terganggunya ekosistem terganggunya unit stok di perairan tersebut, Perbedaan waktu pemijahan dapat disebabkan oleh faktor lingkungan, seperti suhu, musim ketersediaan makanan (Pavlov et al, 2014) termasuk perubahan cuaca berupa hujan dan angin serta letak geografis (Zamidi et al, 2012). Berdasarkan penelitian Oktaviani et al, 2015, kesulitan dalam menentukan musim pemijahan ikan kembung lelaki di perairan Raja Ampat adalah keberadaan ikan TKG 4 (ripe) yang selalu muncul di tiap bulannya.…”

Section: Pembahasanunclassified

Analisis Spasial Dan Temporal Terhadap Alternatif Strategi Pengelolaan Perikanan Ikan Kembung Di Perairan Selat Sunda

Kuswoyo¹,

Mualim²

2022

BJSJ

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Tujuan dari penelitian ini adalah memetakan distribusi sebaran spasial dan temporal kegiatan perikanan terkait pertumbuhan populasi ikan dan strategi pengelolaannya. Terkait hal ini, Rastrelliger, terpilih sebagai spesies yang ditangkap di wilayah pengelolaan perikanan yang dikenal memiliki nilai ekonomi tinggi meskipun sebagai bycatch. Untuk Dalam menentukan strategi pengelolaan spesies ini, pemetaan merupakan langkah penting pertama dari kegiatan yang harus dilakukan. Pada bulan Januari sampai dengan Maret 2016 dilakukan Penelitian ini di Tempat Pendaratan Ikan (PPP) Labuan, Lempasing, dan Kota Agung dengan melakukan survey yang dilakukan melalui wawancara, purposive sampling dan stratified random sampling untuk sampel ikan. Hasil penelitian ini menegaskanadanya tumpang tindih wilayah penangkapan ikan,berdasarkan irisan satu fishing ground dengan penangkapan nelayan yang berbeda wilayah penangkapan yaitu di perairan Pulau Legundi, Belimbing, dan Kilauan. Korelasi antara bobot panjang Rastrelliger memilikipola alometrik negatif dalam pertumbuhan, ikan dewasa Rastrelliger kanagurta dengan ukuran kelas 18,03–22,09 cm (jantan) dan 19,10–19,52 (betina) dengan ukuran tangkapan pertama (Lc) menggunakan purse seineadalah 15,66 cm dan 18,67 cm (Lc<Lm artinya ikan tidak bertelur saat ditangkap). Alternatif strategi pengelolaan yang tepat adalah penutupan penangkapan disaat musim penangkapan untuk memberikan kesempatan bagi ikan untuk memijah.

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Fecundity and Temporal Reproductive Cycle of Four Finger Threadfin (Eleutheronema tetradactylum) in Malaysian Coastal Water

Cited by 10 publications

References 9 publications

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

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

Egg Biopsy and Spawning Performance of Catfish (Burchell, 1822) using Ovaprim and Chicken Pituitary Hormone

Analisis Spasial Dan Temporal Terhadap Alternatif Strategi Pengelolaan Perikanan Ikan Kembung Di Perairan Selat Sunda

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