高(gao)(gao)郵(you)湖(hu)(hu),古(gu)名(ming)(ming)樊(fan)良(liang)湖(hu)(hu),又名(ming)(ming)新開湖(hu)(hu)。屬(shu)淮(huai)(huai)河流域,淮(huai)(huai)河入江(jiang)水(shui)道(dao)穿湖(hu)(hu),終達長(chang)江(jiang)。跨江(jiang)蘇省高(gao)(gao)郵(you)市、寶應縣(xian)、金湖(hu)(hu)縣(xian)與安徽省天(tian)長(chang)市,水(shui)域總面積(ji)為760.67平(ping)方(fang)公里(平(ping)水(shui)面積(ji)),僅次于太湖(hu)(hu),洪澤湖(hu)(hu),為江(jiang)蘇省的(de)(de)第(di)三大湖(hu)(hu)。一般水(shui)位5.55米深(shen)。屬(shu)跡(ji)洼地(di)型湖(hu)(hu)泊,水(shui)面寬廣,環境優美,物(wu)產豐富。高(gao)(gao)郵(you)湖(hu)(hu)大閘蟹(xie)、高(gao)(gao)郵(you)湖(hu)(hu)龍蝦(xia)是著名(ming)(ming)的(de)(de)品(pin)種(zhong)之一,魚(yu)蝦(xia)的(de)(de)產量(liang)也很大。高(gao)(gao)郵(you)湖(hu)(hu)是天(tian)長(chang)水(shui)路入江(jiang)通(tong)道(dao)。在,龜、蝦(xia)、蟹(xie)等水(shui)產品(pin)豐富,亦以產鴨著名(ming)(ming)。
蘆(lu)葦(wei)迷宮(gong)(gong)是高郵湖(hu)(hu)蘆(lu)葦(wei)蕩(dang)濕地(di)公園的(de)(de)核心部分,屬原生態湖(hu)(hu)泊(bo)濕地(di),總面積約80萬平(ping)方米,是大(da)(da)世(shi)界基(ji)尼(ni)斯認證為(wei)“中國最大(da)(da)原生態水(shui)上蘆(lu)葦(wei)迷宮(gong)(gong)”,其中大(da)(da)小灘涂、河港星羅棋布,魚蝦(xia)肥美,擁(yong)有(you)多種鳥(niao)類、水(shui)生植物及濕地(di)植被(bei),來這里(li)不僅能(neng)欣賞(shang)蘆(lu)葦(wei)搖曳生姿,還能(neng)一覽原始的(de)(de)濕地(di)風貌。更是被(bei)人們譽為(wei)“天然氧倉”。
高郵湖湖底平坦(tan),湖底高程3.5-4.5米(mi),高郵湖常年(nian)水(shui)位(wei)(wei)5-5.5米(mi),蓄水(shui)5-6億立(li)方(fang)米(mi),汛期(qi)蓄水(shui)9.38億立(li)方(fang)米(mi)。死水(shui)位(wei)(wei)5米(mi),死庫(ku)容4.6億立(li)米(mi),蓄水(shui)位(wei)(wei)5.7米(mi),蓄水(shui)面積(ji)648平方(fang)公里,灌溉庫(ku)容4.2億立(li)米(mi),防洪水(shui)位(wei)(wei)9.24米(mi),防洪庫(ku)容27億立(li)米(mi),蒸發量890毫米(mi)。
湖水(shui)呈(cheng)黃(huang)綠色(se)至(zhi)淡(dan)黃(huang)色(se),為(wei)重(zhong)碳酸鹽類鈣組I型水(shui)。據(ju)2010年數據(ju),高(gao)郵湖pH平(ping)(ping)均(jun)(jun)值(zhi)(zhi)為(wei)8.66,溶(rong)解氧平(ping)(ping)均(jun)(jun)值(zhi)(zhi)為(wei)7.3毫(hao)克/升(sheng),總(zong)(zong)氮平(ping)(ping)均(jun)(jun)值(zhi)(zhi)為(wei)1.02毫(hao)克/升(sheng),總(zong)(zong)磷平(ping)(ping)均(jun)(jun)值(zhi)(zhi)為(wei)0.051毫(hao)克/升(sheng),CODMn平(ping)(ping)均(jun)(jun)值(zhi)(zhi)為(wei)9.61毫(hao)克/升(sheng),葉綠素a平(ping)(ping)均(jun)(jun)值(zhi)(zhi)為(wei)10.38毫(hao)克/升(sheng),透明度平(ping)(ping)均(jun)(jun)值(zhi)(zhi)為(wei)0.69米。
高郵湖地處長江(jiang)、淮河下游(you)內(nei)陸水域,浮游(you)植(zhi)物有9門(men)156屬(shu),其(qi)中蘭藻(zao)(zao)門(men)29屬(shu),占(zhan)(zhan)(zhan)(zhan)18.6%,隱藻(zao)(zao)門(men)2屬(shu),占(zhan)(zhan)(zhan)(zhan)1.3%,金藻(zao)(zao)門(men)5屬(shu),占(zhan)(zhan)(zhan)(zhan)3.2%,黃藻(zao)(zao)門(men)2屬(shu),占(zhan)(zhan)(zhan)(zhan)1.3%,硅藻(zao)(zao)門(men)29屬(shu),占(zhan)(zhan)(zhan)(zhan)18.6%,甲藻(zao)(zao)門(men)4屬(shu),占(zhan)(zhan)(zhan)(zhan)2.6%,裸藻(zao)(zao)門(men)6屬(shu),占(zhan)(zhan)(zhan)(zhan)3.8%,綠藻(zao)(zao)門(men)78屬(shu),占(zhan)(zhan)(zhan)(zhan)50%,輪(lun)藻(zao)(zao)門(men)1屬(shu),占(zhan)(zhan)(zhan)(zhan)0.6%。浮游(you)動物有288種,其(qi)中原生(sheng)動物94種,占(zhan)(zhan)(zhan)(zhan)32.6%,輪(lun)蟲106種,占(zhan)(zhan)(zhan)(zhan)36.8%,枝角(jiao)類50種,占(zhan)(zhan)(zhan)(zhan)17.4%,橈足類38種,占(zhan)(zhan)(zhan)(zhan)13.2%。
底棲動(dong)(dong)(dong)(dong)物(wu)有92種(zhong)(zhong),其(qi)中軟體動(dong)(dong)(dong)(dong)物(wu)腹足類(lei)(lei)15種(zhong)(zhong),占(zhan)(zhan)(zhan)16.3%,斧足類(lei)(lei)22種(zhong)(zhong),占(zhan)(zhan)(zhan)23.9%,節(jie)肢動(dong)(dong)(dong)(dong)物(wu)的甲殼類(lei)(lei)14種(zhong)(zhong),占(zhan)(zhan)(zhan)15.2%,水生(sheng)昆(kun)蟲16種(zhong)(zhong),占(zhan)(zhan)(zhan)17.4%,環節(jie)動(dong)(dong)(dong)(dong)物(wu)的多毛類(lei)(lei)3種(zhong)(zhong),占(zhan)(zhan)(zhan)3.3%,寡毛類(lei)(lei)7種(zhong)(zhong),占(zhan)(zhan)(zhan)7.6%,蛭類(lei)(lei)3種(zhong)(zhong),占(zhan)(zhan)(zhan)3.3%,其(qi)他12種(zhong)(zhong),占(zhan)(zhan)(zhan)13%。
水(shui)生植物(wu)共29科(ke)(ke)(ke)(ke)(ke)(ke)(ke)62種(zhong)(zhong),其中萍科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、水(shui)蕨科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、芡科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、菱科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、柳葉菜(cai)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、唇(chun)形科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、胡麻科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、貍藻科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、金(jin)魚科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、桔梗科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、黑(hei)三棱科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、茨藻科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、燈心(xin)草科(ke)(ke)(ke)(ke)(ke)(ke)(ke)各(ge)(ge)(ge)(ge)1種(zhong)(zhong),各(ge)(ge)(ge)(ge)占1.6%,槐葉萍科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、繖形科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、龍(long)膽科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、玄參科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、澤瀉科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、天南星科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、浮萍科(ke)(ke)(ke)(ke)(ke)(ke)(ke)各(ge)(ge)(ge)(ge)2種(zhong)(zhong),各(ge)(ge)(ge)(ge)占3.2%;小二仙草種(zhong)(zhong)、雨久花(hua)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)各(ge)(ge)(ge)(ge)3種(zhong)(zhong),各(ge)(ge)(ge)(ge)占4.8%,睡蓮科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、蓮子菜(cai)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、菜(cai)苤科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、禾本科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、莎草科(ke)(ke)(ke)(ke)(ke)(ke)(ke)各(ge)(ge)(ge)(ge)4種(zhong)(zhong),各(ge)(ge)(ge)(ge)占6.5%,蓼科(ke)(ke)(ke)(ke)(ke)(ke)(ke)8種(zhong)(zhong),占12.9%。
魚(yu)(yu)類計(ji)有(you)(you)24科(ke)(ke)(ke)74屬109種。作為(wei)捕撈(lao)(lao)對(dui)象的(de)主(zhu)要(yao)有(you)(you)鯉(li)科(ke)(ke)(ke)、鳀科(ke)(ke)(ke)、銀(yin)魚(yu)(yu)科(ke)(ke)(ke)、鯰(nian)科(ke)(ke)(ke)、鮠科(ke)(ke)(ke)、鰻鱺科(ke)(ke)(ke)、鯔(zi)科(ke)(ke)(ke)、鮨科(ke)(ke)(ke)、鱧科(ke)(ke)(ke)、合(he)鰓科(ke)(ke)(ke)、塘鱧科(ke)(ke)(ke)、杜文魚(yu)(yu)科(ke)(ke)(ke)等(deng)12科(ke)(ke)(ke),主(zhu)要(yao)有(you)(you)鯉(li)、鯽、青、草、鰱、鳙(yong)、鳊、魴(fang)、、紅鰭鲌、蒙古紅鲌、翹咀紅鲌、條、鳡魚(yu)(yu)、鰟鮍、大銀(yin)魚(yu)(yu)、太湖(hu)短吻銀(yin)魚(yu)(yu)、梅鱭、鯰(nian)魚(yu)(yu)、黃顙魚(yu)(yu)、河(he)(he)鰻、鱖(gui)魚(yu)(yu)、黑魚(yu)(yu)等(deng)。另外,還有(you)(you)蝦、蟹(xie)和貝(bei)類。高郵湖(hu)在(zai)三(san)河(he)(he)閘建閘之前,青、草、鰱、鳙(yong)四大家(jia)魚(yu)(yu)的(de)捕撈(lao)(lao)量,1952年(nian)占總捕撈(lao)(lao)量的(de)12%,1953年(nian)建閘后,四大家(jia)魚(yu)(yu)捕撈(lao)(lao)量逐年(nian)減少,到1960年(nian),僅占捕撈(lao)(lao)量的(de)0.16%,幾乎到了絕跡的(de)程度。
江蘇省湖蕩灘地多,水生經濟植物資源豐富,可分為挺水植物、浮葉植物、漂浮植物和沉水植物四大類。主要品種如下:挺水植物有蓮藕、蘆葦、蒲草等。一般生長在靠近岸邊水淺的地方,植株挺立于水中,部分基葉伸出水面。省內淡水水域均有分布,特別是湖泊、河蕩地區資源豐富。浮葉植物有菱、芡實、莼菜等,根生在水底,莖比較柔軟,葉片浮于水面。菱主要分布在里下河、蘇州水網地區;芡實在湖蕩、港汊和漚田均有分布;莼菜以太湖東山所產有名。漂浮植物有水葫蘆、水浮蓮、浮萍等,整株植物飄浮水面,其根不著生于水底,省內河溝和湖蕩地區均有分布,資源比較豐富。沉水植物有有苦草、馬來眼子菜、輪葉黑藻等,植株生于水中,湖蕩地區均有分布,資源豐富。