蘑菇的壮丽,Engraulis encrasicolus(林奈,1758)在博科科尔斯克湾(黑山,南贾德兰)

IF 1 4区 生物学 Q3 MARINE & FRESHWATER BIOLOGY
Acta Adriatica Pub Date : 2019-01-14 DOI:10.32582/AA.59.2.2
Mirko Đurović, Aleksandar Joksimović, A. Pešić, Olivera Marković, Slobodan Regner, Milica Mandić, Zdravko Ikica
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引用次数: 0

摘要

本文研究了2006年7月至2007年6月在亚得里亚海南部的黑山博卡科托斯卡湾(Boka Kotorska Bay)地区用海滩围网捕获的鳀鱼Engraulis encrasicolus (Linnaeus,1758)的性腺形态的年变化。每个月采集样本。体长6.6 ~ 12.2 cm,体重1.58 ~ 11.27 g,取卵巢称重,取雌性性腺组织切片作组织学分析。所有凤尾鱼标本的长度-重量关系由公式\(W = 0.0032\)\(L_T^3.2537; (r^2 = 0.9528)\)描述。GSI值在11月最低,一直保持在低水平,直到4月,这对应于性腺休止期。4、5月GSI逐渐升高,与产卵期开始一致。虽然初级卵母细胞(I期)在所有月份都存在,但它们的百分比从10月开始增加,在冬季月份(11月至100年3月)最高%). Mature cells, stage IV, were present during April – October period, with highest value in May when they comprised 12.3% of total oocyte number. An increase in the percentage of oocytes in the yolk vesicle (II) and yolk (III) stages occurred in April, remaining almost unchanged until October. Smallest average oocyte size was noticed in period November – February with an average of 59.69 μm, while greatest size was recorded in April 2007, 185.84 μm.
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Razmnožavanje brgljuna, Engraulis encrasicolus (Linnaeus, 1758) u Bokokotorskom zaljevu (Crna Gora, južni Jadran)
The annual alteration of gonad morphology in anchovy, Engraulis encrasicolus (Linnaeus,1758), caught in the period from July 2006 to June 2007 using beach seines in the region of Boka Kotorska Bay (Montenegro, southern Adriatic) was studied. Samples were taken each month. Total length of individuals ranged from 6.6 to 12.2 cm, while weight ranged from 1.58 to 11.27 g, Their ovaries were extracted and weighed, and a piece of female gonad tissue was sampled for histological analysis. The length–weight relationship of all anchovy specimens was described by the equation: \(W = 0.0032\) \(L_T^3.2537; (r^2 = 0.9528)\). The lowest GSI values were found in November and remained at low levels until April, which corresponded to the gonad rest stage. The GSI increased gradually during April and May, which coincides with the begining of spawning period. Although primary oocytes (stage I) were present during all months, their percentage increased from October and was the highest during the winter months (November-March 100%). Mature cells, stage IV, were present during April – October period, with highest value in May when they comprised 12.3% of total oocyte number. An increase in the percentage of oocytes in the yolk vesicle (II) and yolk (III) stages occurred in April, remaining almost unchanged until October. Smallest average oocyte size was noticed in period November – February with an average of 59.69 μm, while greatest size was recorded in April 2007, 185.84 μm.
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来源期刊
Acta Adriatica
Acta Adriatica 生物-海洋与淡水生物学
CiteScore
1.60
自引率
11.10%
发文量
13
审稿时长
>12 weeks
期刊介绍: Journal "Acta Adriatica" is an Open Access journal. Users are allowed to read, download, copy, redistribute, print, search and link to material, and alter, transform, or build upon the material, or use them for any other lawful purpose as long as they attribute the source in an appropriate manner according to the CC BY licence.
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