高(gao)郵(you)(you)湖(hu)(hu),古名樊良湖(hu)(hu),又名新(xin)開湖(hu)(hu)。屬淮河流(liu)域(yu)(yu),淮河入江(jiang)水(shui)(shui)(shui)道(dao)穿湖(hu)(hu),終達(da)長江(jiang)。跨江(jiang)蘇(su)(su)省高(gao)郵(you)(you)市(shi)、寶(bao)應縣、金湖(hu)(hu)縣與(yu)安(an)徽省天長市(shi),水(shui)(shui)(shui)域(yu)(yu)總面積(ji)為760.67平方公里(平水(shui)(shui)(shui)面積(ji)),僅(jin)次于太(tai)湖(hu)(hu),洪(hong)澤湖(hu)(hu),為江(jiang)蘇(su)(su)省的第三大湖(hu)(hu)。一(yi)般水(shui)(shui)(shui)位5.55米深(shen)。屬跡洼地(di)型(xing)湖(hu)(hu)泊(bo),水(shui)(shui)(shui)面寬廣,環(huan)境(jing)優美,物產(chan)(chan)豐(feng)富(fu)。高(gao)郵(you)(you)湖(hu)(hu)大閘蟹(xie)、高(gao)郵(you)(you)湖(hu)(hu)龍蝦是著名的品種(zhong)之一(yi),魚蝦的產(chan)(chan)量(liang)也很大。高(gao)郵(you)(you)湖(hu)(hu)是天長水(shui)(shui)(shui)路入江(jiang)通道(dao)。在(zai),龜(gui)、蝦、蟹(xie)等水(shui)(shui)(shui)產(chan)(chan)品豐(feng)富(fu),亦以產(chan)(chan)鴨著名。
蘆(lu)葦迷(mi)(mi)宮是(shi)高(gao)郵(you)湖蘆(lu)葦蕩濕(shi)地(di)公園的核心部分,屬原(yuan)生(sheng)態湖泊濕(shi)地(di),總面積約80萬平方米,是(shi)大世界基尼斯認證為(wei)“中國最大原(yuan)生(sheng)態水上蘆(lu)葦迷(mi)(mi)宮”,其(qi)中大小灘涂(tu)、河(he)港星(xing)羅(luo)棋布,魚蝦肥(fei)美,擁有多種(zhong)鳥類、水生(sheng)植(zhi)物及濕(shi)地(di)植(zhi)被,來(lai)這里不僅能(neng)欣賞蘆(lu)葦搖曳生(sheng)姿,還能(neng)一覽原(yuan)始的濕(shi)地(di)風貌。更是(shi)被人(ren)們譽(yu)為(wei)“天然氧倉”。
高郵(you)湖(hu)湖(hu)底(di)平(ping)(ping)坦,湖(hu)底(di)高程(cheng)3.5-4.5米(mi)(mi)(mi),高郵(you)湖(hu)常年水位(wei)5-5.5米(mi)(mi)(mi),蓄(xu)(xu)水5-6億立方米(mi)(mi)(mi),汛期(qi)蓄(xu)(xu)水9.38億立方米(mi)(mi)(mi)。死(si)水位(wei)5米(mi)(mi)(mi),死(si)庫容4.6億立米(mi)(mi)(mi),蓄(xu)(xu)水位(wei)5.7米(mi)(mi)(mi),蓄(xu)(xu)水面積648平(ping)(ping)方公(gong)里,灌溉(gai)庫容4.2億立米(mi)(mi)(mi),防洪水位(wei)9.24米(mi)(mi)(mi),防洪庫容27億立米(mi)(mi)(mi),蒸發量890毫(hao)米(mi)(mi)(mi)。
湖(hu)水呈黃(huang)綠(lv)色至淡(dan)黃(huang)色,為重碳酸(suan)鹽類鈣組I型水。據(ju)2010年數(shu)據(ju),高郵湖(hu)pH平(ping)均(jun)(jun)(jun)值(zhi)(zhi)(zhi)為8.66,溶解(jie)氧平(ping)均(jun)(jun)(jun)值(zhi)(zhi)(zhi)為7.3毫(hao)克/升(sheng)(sheng),總氮平(ping)均(jun)(jun)(jun)值(zhi)(zhi)(zhi)為1.02毫(hao)克/升(sheng)(sheng),總磷平(ping)均(jun)(jun)(jun)值(zhi)(zhi)(zhi)為0.051毫(hao)克/升(sheng)(sheng),CODMn平(ping)均(jun)(jun)(jun)值(zhi)(zhi)(zhi)為9.61毫(hao)克/升(sheng)(sheng),葉綠(lv)素(su)a平(ping)均(jun)(jun)(jun)值(zhi)(zhi)(zhi)為10.38毫(hao)克/升(sheng)(sheng),透明度平(ping)均(jun)(jun)(jun)值(zhi)(zhi)(zhi)為0.69米。
高郵湖地處長(chang)江、淮河下(xia)游(you)內(nei)陸(lu)水域,浮(fu)游(you)植物(wu)有9門(men)(men)(men)156屬(shu)(shu)(shu),其(qi)中(zhong)蘭藻(zao)(zao)(zao)門(men)(men)(men)29屬(shu)(shu)(shu),占(zhan)(zhan)(zhan)18.6%,隱(yin)藻(zao)(zao)(zao)門(men)(men)(men)2屬(shu)(shu)(shu),占(zhan)(zhan)(zhan)1.3%,金藻(zao)(zao)(zao)門(men)(men)(men)5屬(shu)(shu)(shu),占(zhan)(zhan)(zhan)3.2%,黃(huang)藻(zao)(zao)(zao)門(men)(men)(men)2屬(shu)(shu)(shu),占(zhan)(zhan)(zhan)1.3%,硅藻(zao)(zao)(zao)門(men)(men)(men)29屬(shu)(shu)(shu),占(zhan)(zhan)(zhan)18.6%,甲藻(zao)(zao)(zao)門(men)(men)(men)4屬(shu)(shu)(shu),占(zhan)(zhan)(zhan)2.6%,裸藻(zao)(zao)(zao)門(men)(men)(men)6屬(shu)(shu)(shu),占(zhan)(zhan)(zhan)3.8%,綠藻(zao)(zao)(zao)門(men)(men)(men)78屬(shu)(shu)(shu),占(zhan)(zhan)(zhan)50%,輪(lun)藻(zao)(zao)(zao)門(men)(men)(men)1屬(shu)(shu)(shu),占(zhan)(zhan)(zhan)0.6%。浮(fu)游(you)動物(wu)有288種(zhong),其(qi)中(zhong)原生動物(wu)94種(zhong),占(zhan)(zhan)(zhan)32.6%,輪(lun)蟲106種(zhong),占(zhan)(zhan)(zhan)36.8%,枝角類50種(zhong),占(zhan)(zhan)(zhan)17.4%,橈(rao)足(zu)類38種(zhong),占(zhan)(zhan)(zhan)13.2%。
底棲動(dong)物有92種(zhong)(zhong),其(qi)中軟體動(dong)物腹(fu)足類15種(zhong)(zhong),占(zhan)(zhan)16.3%,斧足類22種(zhong)(zhong),占(zhan)(zhan)23.9%,節(jie)肢動(dong)物的甲殼類14種(zhong)(zhong),占(zhan)(zhan)15.2%,水生(sheng)昆蟲(chong)16種(zhong)(zhong),占(zhan)(zhan)17.4%,環節(jie)動(dong)物的多毛類3種(zhong)(zhong),占(zhan)(zhan)3.3%,寡毛類7種(zhong)(zhong),占(zhan)(zhan)7.6%,蛭類3種(zhong)(zhong),占(zhan)(zhan)3.3%,其(qi)他12種(zhong)(zhong),占(zhan)(zhan)13%。
水生植(zhi)物(wu)共29科(ke)(ke)(ke)(ke)(ke)(ke)(ke)62種(zhong)(zhong)(zhong),其(qi)中萍(ping)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、水蕨科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、芡(qian)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、菱(ling)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、柳(liu)葉菜(cai)(cai)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、唇形(xing)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)、金魚(yu)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、桔梗科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、黑三棱(leng)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、茨(ci)藻科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、燈心草科(ke)(ke)(ke)(ke)(ke)(ke)(ke)各(ge)(ge)1種(zhong)(zhong)(zhong),各(ge)(ge)占(zhan)1.6%,槐葉萍(ping)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、繖形(xing)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、龍膽科(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(fu)萍(ping)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)各(ge)(ge)2種(zhong)(zhong)(zhong),各(ge)(ge)占(zhan)3.2%;小(xiao)二仙草種(zhong)(zhong)(zhong)、雨久花科(ke)(ke)(ke)(ke)(ke)(ke)(ke)各(ge)(ge)3種(zhong)(zhong)(zhong),各(ge)(ge)占(zhan)4.8%,睡蓮(lian)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、蓮(lian)子菜(cai)(cai)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、菜(cai)(cai)苤科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、禾本(ben)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)、莎(sha)草科(ke)(ke)(ke)(ke)(ke)(ke)(ke)各(ge)(ge)4種(zhong)(zhong)(zhong),各(ge)(ge)占(zhan)6.5%,蓼(liao)科(ke)(ke)(ke)(ke)(ke)(ke)(ke)8種(zhong)(zhong)(zhong),占(zhan)12.9%。
魚(yu)(yu)(yu)(yu)類計有(you)(you)24科(ke)(ke)(ke)(ke)(ke)(ke)74屬109種(zhong)。作為捕(bu)撈對象的主(zhu)要有(you)(you)鯉科(ke)(ke)(ke)(ke)(ke)(ke)、鳀科(ke)(ke)(ke)(ke)(ke)(ke)、銀(yin)(yin)魚(yu)(yu)(yu)(yu)科(ke)(ke)(ke)(ke)(ke)(ke)、鯰科(ke)(ke)(ke)(ke)(ke)(ke)、鮠(wei)科(ke)(ke)(ke)(ke)(ke)(ke)、鰻鱺科(ke)(ke)(ke)(ke)(ke)(ke)、鯔(zi)科(ke)(ke)(ke)(ke)(ke)(ke)、鮨科(ke)(ke)(ke)(ke)(ke)(ke)、鱧科(ke)(ke)(ke)(ke)(ke)(ke)、合(he)鰓科(ke)(ke)(ke)(ke)(ke)(ke)、塘鱧科(ke)(ke)(ke)(ke)(ke)(ke)、杜文魚(yu)(yu)(yu)(yu)科(ke)(ke)(ke)(ke)(ke)(ke)等12科(ke)(ke)(ke)(ke)(ke)(ke),主(zhu)要有(you)(you)鯉、鯽、青(qing)、草、鰱、鳙(yong)、鳊(bian)、魴(fang)、、紅鰭(qi)鲌(ba)(ba)、蒙古(gu)紅鲌(ba)(ba)、翹咀(ju)紅鲌(ba)(ba)、條(tiao)、鳡(gan)魚(yu)(yu)(yu)(yu)、鰟(pang)鮍、大(da)銀(yin)(yin)魚(yu)(yu)(yu)(yu)、太湖(hu)短吻銀(yin)(yin)魚(yu)(yu)(yu)(yu)、梅鱭(ji)、鯰魚(yu)(yu)(yu)(yu)、黃顙魚(yu)(yu)(yu)(yu)、河(he)鰻、鱖魚(yu)(yu)(yu)(yu)、黑魚(yu)(yu)(yu)(yu)等。另外,還(huan)有(you)(you)蝦、蟹和貝(bei)類。高郵湖(hu)在(zai)三(san)河(he)閘建閘之前,青(qing)、草、鰱、鳙(yong)四(si)大(da)家魚(yu)(yu)(yu)(yu)的捕(bu)撈量(liang)(liang),1952年(nian)(nian)占總捕(bu)撈量(liang)(liang)的12%,1953年(nian)(nian)建閘后,四(si)大(da)家魚(yu)(yu)(yu)(yu)捕(bu)撈量(liang)(liang)逐年(nian)(nian)減少,到(dao)1960年(nian)(nian),僅占捕(bu)撈量(liang)(liang)的0.16%,幾乎到(dao)了絕跡的程度。
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。