Reproductive Biology and Fishery-Related Characteristics of the Malabar Grouper (Epinephelus malabaricus) Caught in the Coastal Waters of Mafia Island, Tanzania
المؤلفون المشاركون
المصدر
العدد
المجلد 2013، العدد 2013 (31 ديسمبر/كانون الأول 2013)، ص ص. 1-11، 11ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2013-07-21
دولة النشر
مصر
عدد الصفحات
11
التخصصات الرئيسية
الملخص EN
The reproductive biology and fishery-related characteristics of the Malabar grouper (Epinephelus malabaricus) (Bloch and Schneider, 1801) specimens were investigated.
The size of females ranged from 25 to 113 cm total length (LT), with 50% sexually mature at 79 cm LT, and the males (97 cm to 114 cm LT) were larger than the females.
Due to the sex ratios and size distribution of the sample, it appeared that the groupers change sex between 97 and 113 cm LT.
However, the gonadal histology data lacked specimens in the transitional stage.
The spawning peak occurred in November, as defined by the presence of ripe females, and the spawning season lasted from September to February.
The size of the fish correlated positively with the water depth at capture, which is also related to oxygen levels in deep water being more favourable for larger fish.
Larger specimens (>100 cm LT) were targeted by fishers between December and February, when the northeast monsoon coincides with calmer weather and the spawning season.
Fishers were interviewed, and observations were made on fishing gear, vessels, and grounds.
There was no indication that small-scale fishers targeted spawning aggregations; therefore, fisheries independent research is recommended in order to verify the time, location, and behaviour of the spawning of Malabar groupers for management and conservation purposes.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Gaspare, Lydia& Bryceson, Ian. 2013. Reproductive Biology and Fishery-Related Characteristics of the Malabar Grouper (Epinephelus malabaricus) Caught in the Coastal Waters of Mafia Island, Tanzania. Journal of Marine Sciences،Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-1007147
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Gaspare, Lydia& Bryceson, Ian. Reproductive Biology and Fishery-Related Characteristics of the Malabar Grouper (Epinephelus malabaricus) Caught in the Coastal Waters of Mafia Island, Tanzania. Journal of Marine Sciences No. 2013 (2013), pp.1-11.
https://search.emarefa.net/detail/BIM-1007147
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Gaspare, Lydia& Bryceson, Ian. Reproductive Biology and Fishery-Related Characteristics of the Malabar Grouper (Epinephelus malabaricus) Caught in the Coastal Waters of Mafia Island, Tanzania. Journal of Marine Sciences. 2013. Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-1007147
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1007147
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر