ورقة بحثية
Reproductive Season of the Scalloped Spiny Lobster Panulirus homarus Along the Coast of Oman: Management Implications = موسم التكاثر لشارخة الصخور على طول الساحل في سلطنة عمان

Al Marzouqi, Abdulaziz.


 

Reproductive Season of the Scalloped Spiny Lobster Panulirus homarus Along the Coast of Oman: Management Implications = موسم التكاثر لشارخة الصخور على طول الساحل في سلطنة عمان

Al Marzouqi, Abdulaziz.

The spiny lobster Panulirus homarus is widely distributed in the Indo-West Pacific. Along the coast of Oman it supports an artisanal fishery using traps and tangle nets. The egg-bearing incidence of females caught between 1989 and 2006 were analysed relative to month, lobster size and location of capture. The smallest female with external eggs had a carapace length (CL) of 54.6 mm, but only 9–18% of females of 60–69 mm CL carried eggs. This percentage increased significantly above 70 mm CL, and on average, 63% of individuals >90 mm carried eggs. Egg-bearing increased seasonally at the onset of the SW monsoon in May and June, when wind-driven upwelling reduces inshore water temperatures and increases primary productivity. The reproductive season extended over a 9-month period up to January, with a pause in February to April. No geographical gradient in egg-bearing seasonality was observed. The prolonged breeding season with multiple broods in large females conforms with the typical pattern of tropical palinurids. The 2-month open fishing season (15th October to 15th December) falls within the breeding season, and may be more optimally placed in February to April.

The spiny lobster Panulirus homarus is widely distributed in the Indo-West Pacific. Along the coast of Oman it supports an artisanal fishery using traps and tangle nets. The egg-bearing incidence of females caught between 1989 and 2006 were analysed relative to month, lobster size and location of ...

مادة فرعية

المؤلف : Al Marzouqi, Abdulaziz.

مؤلف مشارك : Groeneveld, Johan C
Al Nahdi, Abdullah
Al Hosni, Ahmed

بيانات النشر : Muscat، Sultanate of Oman : Journal of Agricultural and Marine Sciences، 2008مـ.

التصنيف الموضوعي : العلوم التطبيقية|الزراعة .

المواضيع : Fish - Sultanate of Oman.

الأسماك - سلطنة عمان.

الشارخة(أسماك) - سلطنة عمان.

رقم الطبعة : 1

المصدر : Sultan Qaboos University : Muscat، Sultanate of Oman.

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