Sexual maturity, spawning activity, sex ratio and fecundity of two Mullidae species dwelling the Gulf of Suez, Red Sea

Sabrah, Manal M.; Heneish, Rasha Ali; Alwany, Magdy A.; Ahmad, Mohammed I.

doi:10.1016/j.ejar.2016.04.007

Cited by 12 publications

(12 citation statements)

References 9 publications

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“…Most of the studies carried out in the Mediterranean limit this species' spawning season to the period from April to September (Golani 1994), with its spawning peak varying longitudinally from April (Turkey: Cicek et al 2002;Ismen 2006;Ok 2012) to May (Egypt: Ramadan & El-Halfawy 2014) and June (Libya: El-Drawany 2013). Our results agree with Mediterranean records for the Gulf of Suez, for which the spawning period extends from May to September (Sabrah et al 2017).…”

Section: Discussionsupporting

confidence: 90%

“…Furthermore, Akar and Gündoğdu (2013) and Cicek and Avsar (2011) reported the modal length as 9.0 cm TL, also from Turkey. Recently, in the Gulf of Suez, Sabrah et al (2017) collected specimens that were 9.0 to 16 cm long, with a modal length of 15 and 10 cm TL, respectively, for the females and males. The maximum length recorded in the present study was 3.0 cm shorter than maximum length reported in the Mediterranean (19.2 cm TL)by Ok (2012) in Turkeyand in its native area (Randall 1995).…”

Section: Discussionmentioning

confidence: 99%

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Preliminary study on the biological traits of the Por’s goatfish Upeneus pori (Chordata: Actinopterygii) off the southern coast of Lampedusa Island (Central Mediterranean)

Geraci

Scannella

Falsone

et al. 2018

The European Zoological Journal

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One hundred and six specimens of the Por's goatfish, Upeneus pori Ben-Tuvia & Golani (1989), a Lessepsian species native to the Western Indian Ocean, were collected from bottom trawlers' catches from 2012 to 2016 on the deep shelf off the southern coast of Lampedusa Island (Strait of Sicily, Central Mediterranean Sea). Since it first appeared in Iskenderun Bay (Turkey) in 1950, the Por's goatfish has quickly spread in Levantine Sea waters to become a commercial species used by local fisheries, while continuing its range expansion along the southeastern coasts of the Mediterranean. Because the Strait of Sicily currently represents the westernmost sector of this species distribution area, it might serve as a stepping-stone for this species' expansion in the western basin of the Mediterranean. Supporting this hypothesis was our finding of specimens with post-spawning gonads. The pattern of westward expansion by the Por's goatfish in the Mediterranean Sea and its settlement in the Strait of Sicily are discussed in relation to the warming trend over the last 30 years.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 99%

Preliminary study on the biological traits of the Por’s goatfish Upeneus pori (Chordata: Actinopterygii) off the southern coast of Lampedusa Island (Central Mediterranean)

Geraci

Scannella

Falsone

et al. 2018

The European Zoological Journal

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“…The assessment and management of fish populations is achieved by using size at sexual maturity and data on fecundity to estimate the biomass of spawning stocks (Nunes et al, 2011;Sabrah et al, 2017). Knowledge of the size at sexual maturity of fish is important in fishery management because it helps to avoid removal of fish that are smaller than sexually mature ones.…”

Section: Discussionmentioning

confidence: 99%

Reproductive Biology of Ripon Barbel (Labeobarbus Altianalis) In River Kuja-Migori Basin, Kenya

Kembenya

Getabu

Njiru

et al. 2022

Res. Agric. Livest. Fish.

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The present study aimed to investigate the reproductive biology of Labeobarbus altianalis from River Kuja-Migori basin, Kenya. This fish species is distributed in most water bodies in the Lake Victoria basin and effluent rivers. Labeobarbus altianalis is susceptible to fishing due to aggregation at the river mouths during reproduction seasons. We conducted a study for 18 months with an objective of determining length at 50% sexual maturity, fecundity, gonadosomatic index, egg size, sex ratio and breeding season of L. altianalis. The results showed that breeding of this fish occurred from March to August and September to November coinciding with longer and shorter rain seasons. Fecundity ranged from 1320-2382 eggs (mean 1552 ± 23.3). There was a strong correlation between fecundity and total length (R2 = 0.994). The mean egg diameter was 1.2 ± 0.007 mm. Mean gonado-somatic index was 5.63 ± 0.34 and 2.24 ± 0.21 for females and males respectively. The length at 50% sexual maturity was estimated to be 16.3 cm and 18 cm total length for males and females respectively. There was no significant difference in sex ratio from the hypothetical 1:1 (χ2, p > 0.05). Females had low fecundity and males attain sexual maturity earlier than females. Results from this study provide important information for managing riverine fishery in the Lake Victoria basin. Vol. 9, No. 2, August 2022: 221-228

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“…Such deviation and predominance of one sex might result from the behavioral differences between the two sexes, which is, in turn, a result of differential fishing proportion, one being caught more than the other (Mali et al, 2017). It could also be due to natural selectivity, and gear selectivity concerning sex difference in activity and morphology, segregation of the sexes through various periods of the year, including segregation resulting from sex differences in the size of maturity (Smith, 1956); migration for spawning and feeding (Yeldan & Avsar, 2000), or the strong predation capability of one sex than the other (Sabrah et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Reproductive Biology of the Brushtooth Lizardfish (Saurida undosquamis) (Richardson, 1848) Inhabiting the Northern Gulf of Suez and the South-Eastern Mediterranean Sea

al.¹

2021

Egypt. J. of Aquatic Biolo. and Fish.

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The Brushtooth Lizardfish Saurida undosquamis is one of the economically successful Lessepsian species, which migrated from the Red Sea to the Mediterranean Sea. The present study was carried out from September 2018 till April 2019 in the Northern Gulf of Suez (at Suez) and from March 2018 to March 2019 in the South-Eastern Mediterranean Sea (at Port Said). A total of 838 specimens were monthly collected from both sites. Overall sex ratio was 1:0.40 and 1:0.54 for the Gulf of Suez and the Mediterranean population, respectively. There was a highly significant difference between the ratios of both sexes in both populations (P<0.001). The monthly changes in maturity stages and gonado-somatic index showed that S. undosquamis have a prolonged spawning season extending from December to April in the Gulf of Suez and from June to March, with two major spawns occurring in August and February in the Mediterranean Sea. The fish length corresponding to 50% (L 50 ) was 17.3 cm for males and 18.2 cm for females from the Gulf of Suez, whereas it was 16.9 cm for males and 17.8 cm for females from the Mediterranean Sea. The absolute fecundity for the Gulf of Suez population ranged from 14750 to 63553 ova (average: 38075 ± 18181 ova) for fish that ranged from 20-22 cm to 30-32 cm (TL). For the Mediterranean Sea population, the absolute fecundity ranged from 18090 to 62025 ova (average: 39274 ± 15783 ova) for fish that ranged from 18-20 cm to 30-32 cm (TL).

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Sexual maturity, spawning activity, sex ratio and fecundity of two Mullidae species dwelling the Gulf of Suez, Red Sea

Cited by 12 publications

References 9 publications

Preliminary study on the biological traits of the Por’s goatfish Upeneus pori (Chordata: Actinopterygii) off the southern coast of Lampedusa Island (Central Mediterranean)

Preliminary study on the biological traits of the Por’s goatfish Upeneus pori (Chordata: Actinopterygii) off the southern coast of Lampedusa Island (Central Mediterranean)

Reproductive Biology of Ripon Barbel (Labeobarbus Altianalis) In River Kuja-Migori Basin, Kenya

Reproductive Biology of the Brushtooth Lizardfish (Saurida undosquamis) (Richardson, 1848) Inhabiting the Northern Gulf of Suez and the South-Eastern Mediterranean Sea

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