<p> </p>
<p><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">光照与食物也许是影响鰟鮍发色的因素,但不是决定性因素</span></p>
<p><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">影响鰟鮍发色主要原因有三个:</span></p>
<p><span lang="EN-US">1</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">、水的透明度</span></p>
<p><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">鰟鮍所生活水域水的透明度一般在</span><span lang="EN-US">10-50cm</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">之间,而在靠近水体底部水的透明度可能更低。</span></p>
<p><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">在低透明度的水体中鱼更有安全感,更容易发色。</span></p>
<p><span lang="EN-US">2</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">、底砂的颜色</span></p>
<p><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">深色或黑色的底砂会使鰟鮍颜色变深,显现色彩</span></p>
<p><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">我用黑金沙饲养的越南鱊就没有褪色,只是颜色较野外的略浅。</span></p>
<p><span lang="EN-US">3</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">、繁殖期</span></p>
<p><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">每年总有那么几个月。。。。。(这句话听着耳熟,嘿嘿)</span></p>
<p><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">每年的</span><span lang="EN-US">3</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">月至</span><span lang="EN-US">8</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">月是大部分鰟鮍的繁殖期(日本的细鳞鱊是每年冬季繁殖),在这期间,雄鱼色彩会逐渐变得鲜艳,头部出现追星,雄鱼互相追打,夸示色彩。</span></p>
<p><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">而随着</span><span lang="EN-US">9</span><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">月份的来临,水温降低,繁殖期结束,雄鱼追星消退,色彩黯淡。</span></p>
<p><span lang="EN-US"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p> </o:p></span></p>
<p><span style="FONT-FAMILY: 宋体; mso-ascii-font-family: Verdana; mso-hansi-font-family: Verdana">综上所述,对于鰟鮍来说,想获得稳定的色彩很难,但并不是没有一点办法。有兴趣的朋友可以试试鰟鮍的人工繁殖,饲养从小就生活在水族箱内的个体,也许会有意想不到的惊喜。</span></p>
[此贴子已经被作者于2009-11-8 14:08:16编辑过] |