growth pattern, condition factor and length at first maturity of yellowfin seabream acanthopagrus latus in the persian gulf

Authors

ایمان سوری نژاد

دانشگاه هرمزگان شهلا نیکخواه خواجه عطایی

دانشگاه هرمزگان احسان کامرانی

دانشگاه هرمزگان مهدی قدرتی شجاعی

دانشگاه تربیت مدرس

abstract

length- weight relationship and growth pattern, condition factor and length at first maturity of yellowfin seabream were investigated in the persian gulf by monthly sampling of 30 fish from september 2011 to august 2012. maximum (31.45± 4.32) and minimum (17.80± 1.85) values of fork length and maximum (720.46 ± 292.58 gr) and minimum (134.01± 45.62) values of body weight were in january and september, respectively. the most frequent length category was of 26-28 cm which included 13% of the total samples. fork length-weight relation in acanthopagrus latus was calculated as w=0.0481fl2.7956 with r2= 0.984 that regarding non-significant difference between the estimated b and the number 3 with 0.95% confidence level, the growth pattern of this species was determined to be isometric in the persian gulf. condition factor was calculated to be 2.132 in acanthopagrus latus in the persian gulf waters. condition factor was decreased from january to march and then increased from april to the end of autumn. length at first maturity was estimated to be 24.31 cm of fork length in acanthopagrus latus. 38% of caught fish had a length close or shorter than length at first maturity that this trend if continued would threaten acanthopagrus latus stocks in future.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Length weight relationship, condition factor and length at first maturity of Indian halibut Psettodes erumei in the Persian Gulf

Length weight relationship, condition factor and length at first maturity of Indian halibut Psettodes erumei were investigated in the Persian Gulf by monthly sampling of 30 fish from March to February 2012. Mean value of total length and weight were 38.68 ± 9.39 cm and 986.92 ± 756.79 gr, respectively. Maximum and minimum values of total length were in August (44.43 ± 6.37 cm) and March (23.27 ...

full text

Determination of heavy metals in Acanthopagrus latus (Yellowfin seabream) from the Bushehr seaport (coastal of Persian Gulf), Iran

In this study, bioaccumulation of lead, copper, cadmium, zinc and mercury in gill, liver and muscle of Acanthopagrus latus (Yellowfin seabream) was quantified. The concentrations of heavy metals were determined by using differential pulse anodic stripping voltammetry (DPASV) after wet digestion method. The result comprise of concentration level of Cu2+, Cd2+, Zn2+, Pb2+ and Hg2+ in ten differen...

full text

Seasonal Changes of Morphometric Structure and Plasma Hormone Levels of Thyroid Gland in Persian Gulf Yellowfin Seabream (Acanthopagrus latus)

Seasonal changes of the thyroid gland structure and hormones secretion was examined in yellowfin seabream Acanthopagrus latus in Persian Gulf (Zangi branch, Musa creek). Thyroid gland composed of follicles scattered around the ventral aorta, near the gills. Follicular cells varied according to secretion of the gland during warm and cold seasons. Thyroid hormones (Triidothyronine [T3] and Thyrox...

full text

Feeding habits of yellowfin seabream, Acanthopagrus latus in the northern region of the Persian Gulf

Feeding habits of yellowfin seabream, Acanthopagrus latus was investigated in coastal waters of the Northern Persian Gulf. This investigation was conducted by monthly sampling of thirty fish from September 2011 through August 2012. Fish size ranged from 17.98 ± 2.07 to 32.31 ± 6.52 cm in total length and from 134.01 ± 45.62 to 720.46 ± 292.58 g in weight. The highest value of gastro-somatic ind...

full text

Seasonal change of thyroid histomorphological structure and hormone production in yellowfin seabream (Acanthopagrus latus) in the Persian Gulf

 Seasonal changes of the thyroid gland structure and hormones secretion was examined in yellowfin seabream (Acanthopagrus latus) in the northwest of Persian Gulf (Musa creek). Thyroid gland composed of follicles scattered around the ventral aorta, near the gills. Follicular cells varied according to secretion of the gland during warm and cold seasons. Thyroid hormones (Triidothyronine [...

full text

Seasonal change of thyroid histomorphological structure and hormone production in yellowfin seabream (Acanthopagrus latus) in the Persian Gulf

 Seasonal changes of the thyroid gland structure and hormones secretion was examined in yellowfin seabream (Acanthopagrus latus) in the northwest of Persian Gulf (Musa creek). Thyroid gland composed of follicles scattered around the ventral aorta, near the gills. Follicular cells varied according to secretion of the gland during warm and cold seasons. Thyroid hormones (Triidothyronine [T3] and ...

full text

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023