Volume: 300 L 容积：300 升
Dimensions: 100x60x50 cm 尺寸：100×60×50 厘米
List of fishes: 5 Cribroheros longimanus
鱼类名录：5 条长手慈鲷（Cribroheros longimanus）
3 Poecilia mexicana 3 墨西哥花鳉
List of plants: Lemna minor, Salvinia minima, Ceratophyllum demersum
植物列表：小浮萍、最小槐叶萍、金鱼藻
Description of decorations: All the decorative elements used (sand, rocks, plants, leaves and tree branches) were collected from the Nahualate River and were arranged for a more accurate representation of the represented biotope.
装饰物描述：所有使用的装饰元素（沙子、岩石、植物、落叶和树枝）均采集自纳瓦拉特河，并经过布置以更准确地还原所代表的生物群落。
Description of equipment: Canister Fluval 307 with mechanical and biological material, Atman 150w heater, 3 tubes T8 6000k 1 tube T8 2700k
设备描述：配备机械和生物滤材的 Fluval 307 外置过滤桶、Atman 150W 加热棒、3 支 6000K T8 灯管和 1 支 2700K T8 灯管
Water parameters: The temperature is 24° C, 0 ppm ammonia, 0 ppm nitrite, 20 ppm nitrate, 18 GH, pH 7.9, presence of tannins.
水质参数：水温 24°C，氨氮 0 ppm，亚硝酸盐 0 ppm，硝酸盐 20 ppm，总硬度 18 GH，pH 7.9，含有单宁。Additional info: Partial water changes of 30% weekly
补充信息：每周进行 30% 的部分换水。
INFORMATION ABOUT BIOTOPE
关于生物群落的信息
Description of the area surrounding the biotope: The Nahualate River account is located between parallels 14.00.32 “and 14.54.26” north latitude and meridians 91.09.20 “and 91.38.05” west longitude
生物栖息地周边环境描述：纳瓦拉特河流域位于北纬 14°00′32″至 14°54′26″、西经 91°09′20″至 91°38′05″之间。
Due to the extension of its surface (2,012,1167 km2) it occupies the fifth place (8.44%) within the basins that discharge its waters to the Pacific Ocean. It partially covers the departments of Escuintla, Suchitepéquez, Sololá and Totonicapán.
由于其流域面积广阔（2,012,1167 平方公里），在注入太平洋的诸流域中排名第五（占比 8.44%）。该流域部分覆盖埃斯昆特拉省、苏奇特佩克斯省、索洛拉省和托托尼卡潘省。
It has geographical boundaries, to the north the Motagua river basin, to the east the Madre Vieja river basin, to the west the Salamá and Siscán river basins, and to the south the Pacific Ocean to which it pours its waters.
该流域具有明确的地理边界：北接莫塔瓜河流域，东邻马德雷维耶哈河流域，西靠萨拉马与西斯坎河流域，南濒太平洋，其河水最终注入其中。
The Nahualate River has a length from its source to the point of its mouth in the Pacific Ocean of 125,317 kilometers, along its channel it receives 16,098 streams, which means that the river basin has 8 streams per square kilometer of its surface.
纳瓦拉特河从源头至太平洋入海口的全长为 125.317 公里；沿其河道共汇入 16,098 条溪流，这意味着该流域每平方公里地表面积上分布有 8 条溪流。
Description of the underwater landscape of the biotope: Form and currents:
生物栖息地水下景观描述：形态与水流：
The shape of the basin appears quite elongated, with narrow parts to the north. Its average width according to the central region to the mouth is 25 kilometers, and at the top it goes about 25 kilometers until it has a convergence of 4 kilometers. The river has from very fast waters with presence of large rocks, to stagnant waters on some banks where the soil is sediment and mud with plants and leaves.
该流域形态呈显著狭长状，北部区域尤为狭窄。从中部区域至河口段的平均宽度为 25 公里；而上游段延伸约 25 公里后，逐渐收敛至仅 4 公里宽。河段水流变化多样：既有流经巨岩、流速极快的急流区，也有部分河岸水流停滞，底质为沉积物与淤泥，并生长着水生植物、堆积着落叶。
Depth: 深度：
On the river route you can see different underwater landscapes, from shallow waters of less than 1 meter to spaces where the depth can reach 5 meters (or more in the rainy season).
在河流沿线，您可以看到多样的水下景观，从不足 1 米的浅水区，到深度可达 5 米的空间（雨季时甚至更深）。
Elements that make up the underwater landscape:
构成水下景观的要素：
A large number of trees border the banks of the river, providing to this, branches and leaves which are washed away by the current, which is combined with the ground formed by sand, small and medium rocks.
大量树木沿河岸生长，其枝条与叶片被水流冲刷带入河中，与由沙子及中小石块构成的河床相结合。
Description of the parameters of the habitat: The water is slightly cloudy and amber in color due to the amount of organic material that is decomposing, the pH is in ranges of 7.6 – 8, the average GH is 17, the average temperature is 23° C.
栖息地参数描述：由于大量有机物质正在分解，水体略显浑浊并呈琥珀色；pH 值介于 7.6 至 8 之间，平均总硬度（GH）为 17，平均水温为 23°C。
The parameters were measured with aquarium tests
上述参数均通过水族测试试剂盒测定。
List of fishes and invertebrates occurring in the nature biotope: In the place the following species were identified:
自然生境中出现的鱼类与无脊椎动物名录：在该地点已鉴定出以下物种：
Amatitlania nigrofasciata (Günther, 1867)
黑带慈鲷（Amatitlania nigrofasciata，Günther, 1867）
Astatheros macracanthus (Günther, 1864)
阿斯塔特罗鱼（Astatheros macracanthus，Günther, 1864）
Astyanax aeneus (Günther, 1860)
铜色丽脂鲤（Astyanax aeneus，Günther, 1860）
Amphilophus trimaculatum (Günther, 1867)
三斑伴丽鱼（Amphilophus trimaculatum，Günther, 1867）
Cribroheros longimanus (Günther, 1867)
长手筛颌丽鱼（Cribroheros longimanus，Günther, 1867）
Poecilia Mexicana (Steindachner, 1863)
墨西哥花鳉（斯坦达赫纳，1863 年）
List of plants found in the nature biotope: Cabomba caroliniana
该自然生境中发现的植物列表：卡邦巴草（Cabomba caroliniana）
Lemna minor 小浮萍
Salvinia minima 最小槐叶萍（Salvinia minima）
Ceratophyllum demersum 金鱼藻
Nymphaea tetragona 四角睡莲（Nymphaea tetragona）
Threats to the ecology: • Increase in housing in areas near the river.
对生态的威胁：• 河流附近地区住房数量增加。
• Population increase, with children and young people being the most significant percentage.
• 人口增长，其中儿童和青少年占比最高。
• Intensive use of the river for irrigation, which also causes a greater degree of pollution.
• 河流被密集用于灌溉，这也导致了更严重的污染。
• River used for drains and garbage dump of the towns on the edge of it.
• 河流被沿岸城镇用作排水渠和垃圾倾倒场。
• River deviation • 河流改道
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