Reproductive biology of largescale tonguesole Cynoglossus arel in coastal waters of Bandar Abbas, Persian Gulf, Iran

Abstract Niamaimandi, N., Aziz, A., Siti Khalijah, D., Che Roos, S. and Kiabi, B. 2008. Reproductive biology of the green tiger prawn (Penaeus semisulcatus) in coastal waters of Bushehr, Persian Gulf. – ICES Journal of Marine Science, 65: 1593–1599. The reproductive cycle of the green tiger prawn (Penaeus semisulcatus) was investigated in the coastal waters of Bushehr, Iran, Persian Gulf, from January 2003 to March 2004, with the aim of determining spawning seasons, durations, and locations in those waters. Bushehr waters are one of the main fishing grounds for P. semisulcatus in the Persian Gulf. Spawning peaks between December and March, but there is also some spawning in October. The minimum size at maturity was 24 mm carapace length (CL), and 50% were mature at 40 mm CL. The proportion of females that mated increased sharply above this size (40 mm), with 90% of females sexually mature at 54 mm CL. Spawning took place in a limited part of the study area, mostly offshore. Overexploiting the spawning stock could result in reduced reproductive output, limiting fishery production.

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Reproductive Biology of Round Sardinella (Sardinella Aurita) (Valenciennes, 1847) in Senegalese Coastal Waters

Journal of Biology and Life Science ◽

10.5296/jbls.v9i1.12222 ◽

2018 ◽

Vol 9 (1) ◽

pp. 31

Author(s):

Ismaïla NDIAYE ◽

Alassane SARR ◽

Alioune FAYE ◽

Modou THIAW ◽

Malick DIOUF ◽

...

Keyword(s):

Sex Ratio ◽

Reproductive Biology ◽

Coastal Waters ◽

Sexual Maturity ◽

Reproductive Parameters ◽

Monthly Variation ◽

Relative Fecundity ◽

The Mean ◽

Sardinella Aurita ◽

Somatic Index

In this study, a total of 1068 specimens Sardinella aurita of which 553 females and 515 males were examined. The objectif of this study was to determine the reproductive parameters of Sardinella aurita. The sex ratio was significantly in favor of females (55%). The size at first sexual maturity was estimated at 18.9 cm for females and 18.0 cm for males. The monthly variation of sexual maturity stages and gonado-somatic index (GSI) allowed to locate the reproduction periods from February to June and from September to December. The mean absolute fecundity was estimated at 110.794 ± 7582 oocytes whereas relative fecundity was about 422 ± 26 oocytes per gram of female.

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Uterine fluid composition of the dwarf ornate wobbegong shark (Orectolobus ornatus) during gestation

Marine and Freshwater Research ◽

10.1071/mf10138 ◽

2011 ◽

Vol 62 (6) ◽

pp. 576 ◽

Cited By ~ 10

Author(s):

Megan T. Ellis ◽

Nicholas M. Otway

Keyword(s):

Reproductive Biology ◽

Coastal Waters ◽

Reproductive Strategies ◽

Yolk Sac ◽

Gestation Period ◽

Fluid Composition ◽

Complex Composition ◽

Eastern Australia ◽

Uterine Fluid ◽

Low Levels

Low fecundity in chondrichthyans makes them extremely susceptible to fishing, so understanding the various reproductive strategies in this group is vital for management. Knowledge of the uterine fluid (UF) composition throughout gestation is fundamental to this understanding, yet is restricted to a few species. This study focussed on the UF composition of the wobbegong (Orectolobus ornatus), which inhabits coastal waters off eastern Australia. The UF was quantified throughout pregnancy. Fluids surrounding uterine eggs had a complex composition, with mean urea (98.48 mmol L–1), sodium (560.25 mmol L–1) and potassium (13.93 mmol L–1) concentrations significantly greater than those in seawater. A change in composition, from complex to simple, occurred after 3–4 months gestation. Major electrolyte concentrations then resembled seawater for the remainder of gestation, suggesting the flushing of the uteri with seawater and evidenced by fluctuating low levels of urea. The gestation period reflected the time for metabolism of yolk stores, osmotic and ionic adjustment, development of functioning immunological systems and prevention of external yolk sac damage. Our study is the first documentation of UF composition for a wobbegong shark and increases understanding of its reproductive biology.

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Growth pattern and reproductive biology of Acanthopagrus latus from the Persian Gulf

Survey in Fisheries Sciences ◽

10.18331/sfs2017.4.1.3 ◽

2017 ◽

Vol 4 (1) ◽

Cited By ~ 1

Author(s):

A Vahabnezhad ◽

S.A Taghavimotlagh ◽

M Ghodrati Shojaei

Keyword(s):

Reproductive Biology ◽

Growth Pattern ◽

Persian Gulf ◽

Acanthopagrus Latus ◽

The Persian Gulf

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Reproductive Biology of Ovigerous Female Emerita emeritus (Crustacea, Decapoda) in Bengkulu Coastal Waters, Indonesia: Egg Production and Reproductive Output

Croatian Journal of Fisheries ◽

10.1515/cjf-2016-0018 ◽

2016 ◽

Vol 74 (3) ◽

pp. 103-109 ◽

Cited By ~ 1

Author(s):

Ouratul Edritanti ◽

Achmad Farajallah ◽

Yusli Wardiatno

Keyword(s):

Embryonic Development ◽

Surface Temperature ◽

Reproductive Biology ◽

Coastal Waters ◽

Egg Production ◽

Reproductive Output ◽

Ovigerous Female ◽

Abundant Species ◽

Sea Surface ◽

Egg Volume

Abstract Emerita emeritus is an abundant species in Bengkulu coastal waters, but the knowledge of its reproductive biology is poor. The present study was conducted to elucidate the reproductive aspects of ovigerous female E. emeritus, including fecundity, egg volume and reproductive output. This study was conducted between January 2015 and January 2016 in Bengkulu coastal waters, Indonesia. Samples were collected manually using shovels and hands. The results showed that ovigerous females occurred every month. Fecundity increased significantly in ovigerous females proportional to the size. No correlation was shown between sea surface temperature and egg production. Fecundity and reproductive output decreased throughout the embryonic development.

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