检索结果-南通市图书馆

Reproductive biology of Hemitripterus villosus in the Bohai Strait,China

Journal of Oceanology and Limnology 2024年第3期42卷 881-892页

作者： Ping SUN Song QIN Zhengyi LIU Longchuan ZHUANG Key Laboratory of Coastal Biology and Biological Resource Utilization Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai 264003China University of Chinese Academy of Sciences Beijing 100049China Center for Ocean Mega-Science Chinese Academy of SciencesQingdao 266071China

To understand the reproductive biology of Hemitripterus villosus in the Bohai Strait,and fill the key knowledge gap in verifying reproductive seasonality and documenting gonadotropin dependent reproductive cycle of this species,a year-round detail study was conducted for the first *** total,263 individuals were randomly sampled off the coasts of the Bohai *** show that and the overall female-to-male ratio(1.35:1)did not differ significantly from the 1:1 sex *** length and weight relationship for females and males were regressed,depicting an isometric growth for both *** reproductive phases of the complete gonadotropin dependent reproductive cycle in both sexes were *** monthly variations in the gonadosomatic and hepatosomatic indexes for both sexes further indicated that this species spawns a single batch of eggs per year and the peak spawning period is from October to *** average diameter of eggs ranged from 2.10 to 3.57 *** length at first sexual maturity was 224.87 mm for females and 241.26 mm for *** positive relationships between absolute fecundity and fish size,and also gonadal weight were *** from the Bohai Strait exhibited smaller body size,smaller egg diameter,lower gonadosomatic index,lower absolute fecundity,and higher population extinction risk than the other populations’studied *** findings contribute to understanding the status of this isolated westernmost population,and we emphasize that more efficient protection measures for the species and control measures are urgently required to improve the coastal environment in the Bohai Strait.

关键词： Hemitripterus villosus Bohai Strait fecundity length at first maturity reproductive seasonality

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Reproductive biology of female sawcheek scorpionfish,Brachypterois serrulata(Richardson,1846)(Teleostei;Scorpaenidae)from Visakhapatnam Coast,India

引用

Marine Life Science & Technology 2021年第3期3卷 347-354页

作者： Muddula Krishna Naranji Govinda Rao Velamala Kandula Sujatha Department of Marine Living Resources College of Science and TechnologyAndhra UniversityVisakhapatnam530003Andhra PradeshIndia Department of Zoology and Aquaculture College of Science and TechnologyRajamahendravaram533296Andhra PradeshIndia

We examined the reproductive biology of sawcheek scorpionfish,Brachypterois serrulata,collected from Visakhapatnam fish landing center(fishing area covered 16.98°-20.20°N,82.19°-86.53°E).We studied the annual reproductive cycle,fecundity,size at first maturity,mode of spawning with periodical changes and histological *** distribution and size at sexual maturity were calculated as 108 mm TL for *** mean gonado somatic index values of female increased rapidly from January to December,and reached its peak during January and *** fecundity of the fish species is determined by the size and weight of the *** fecundity varied from 1896 to 20,488,with an average of 5721.90 ova.

关键词： Brachypterois serrulata Central-Eastern Coast of India Fecundity GSI length at first maturity

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Reproductive Biology of Splendid Ponyfish Leiognathus Splendens(Cuvier,1829)in Myeik Coastal Waters,Myanmar

引用

Journal of Marine Science 2019年第2期1卷 7-13页

作者： Khin May Chit Maung Phan Minh Thu Nyo Nyo Tun Myeik University 1 Saparshwewar St.Kalwin WardMyeik CityTanintharyi RegionMyanmar Institute of Oceanography Vietnam Academy of Science and Technology(VAST)01 Cau Da St.Nha TrangVietnam Graduate University of Science and Technology VAST18 Hoang Quoc Viet St.Cau GiayHa NoiVietnam

Reproductive biology of Leiognathus splendens was studied by using the samples collected from the catches of trawl fisheries in Myeik coastal waters during January to December *** takes place throughout the year,with a peak during April-May and *** observed length at first maturity was 9.0 cm total length in males and 8.4 cm in *** mean gonadosomatic index was more prominently in females(2.5)than males(1.5).Sex ratio(1 male:1.1 females)also indicates the general dominant of females over males Fecundity varied from 6120 to 58412 *** of fecundity to fish length,fish weight and ovary weight showed that fecundity is more related to the gonad weight(r=0.9)than length(r=0.8)and weight of fish(r=0.7).

关键词： Fecundity gonadosomatic index length at first maturity spawning Leiognathus splendens

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Reproductive Biology of the Striped Seabream Lithognathus mormyrus （Linnaeus, 1758） from AI-Haneah Fishing Site, Mediterranean Sea, Eastern Libya

引用

Journal of Life Sciences 2016年第4期10卷 171-181页

作者： Eyman Faraj Abd Alssalam Sayed Mohamed Ali Mohammad E1 Sayed E1 Sayed El Mor Ramadan Attea Saleh Ali Eman Salem AI Fergani Department of Zoology Omar Al-Mukhtar University AI Beida Libya Department of Science Suez Canal University Egypt

Reproductive biology of L. mormyrus was studied using monthly samples totaling 224 fish obtained from AI-Haneah fishing site, eastern Libya Mediterranean Sea. lengths of the examined fish ranged between 11.5 cm and 23.4 cm. Corresponding weights were 24.5 g and 160.8 g. The minimum values of the condition factors, KF and Kc, were 1.38 and 1.21 at the average fish length of 12.4 cm. These values increased with increases in length until they reached maximum values of 1.59 and 1.41 at the length of 22.1 cm. The high values of KF and Kc, Gonado-Somatic Index and oocyte diameter maintained during May, June, July, and August and the monthly changes in gonadal condition, indicated that summer was the breeding season of L. mormyrus. The oocyte diameter ranged between 379± 25.3 μ and 1,511 ± 143.3μ （n = 76） with an average of 895 ± 111.3 μ. The sex ratio was in favor of females during all months of the study. The overall sex ratio was 1 ： 1.52. length at first maturity, Ls0, for L. mormyrus was found to be 14.15 cm for males and 14.45 for females. Overall average of absolute fecundity was 4,342±557 egg per fish （n = 45）. The overall average of relative fecundity was 234± 181 egg per cm. Absolute fecundity increased with increasing fish length.

关键词： Reproductive biology length at first maturity oocyte diameter fecundity striped Seabream Lithognathus mormyrus.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：