The results showed demersal biological resources in summer were richer than that in spring as well as diversity index of the community.

更多3.97、2.743国产一级在线和观看、0.76。結(jié)果表明黄色视频无码高清，夏季底層生物資源較春季豐富狂操老女人逼黄色一级视频，漁業(yè)生物群落的多樣性指數(shù)也較春季高。

East China Sea ; Huanghai Sea ; demersal fish ; structure of community ; seasonal dynamics

東海极品孕妇无码视频在线第一页；黃海国产在线91。；底層魚類；群落結(jié)構(gòu)中文视频在线你懂的；季節(jié)變化

Females lay spherical, demersal, adhesive eggs singly or perhaps in small clumps.

女性蛋球hs网站、底層、膠單個或可能在小的前面久久精品超碰。

Based upon stomachs collected from the north Yellow Sea during autumn in 2007, feeding ecology of Liparis tanakae was investigated. The results showed that shrimps and demersal fishes were the most important preys of L.

根據(jù)2007年秋季在黃海北部海域進(jìn)行的定點底拖網(wǎng)調(diào)查十八岁禁看网站，對細(xì)紋獅子魚的攝食生態(tài)進(jìn)行了初步研究。

Based on otter trawl catch rates of five surveys conducted by South China Sea Fisheries Research Institute from 1961 to 1999, changes in demersal trawling fishery resources in the northern South China Sea were analyzed.

利用1961~1999年期間南海水產(chǎn)研究所5次漁業(yè)資源調(diào)查的底拖網(wǎng)漁獲率數(shù)據(jù)欧美国产综合，分析了南海北部底拖網(wǎng)漁業(yè)資源的數(shù)量變動国产精品免费-区二区三区。

Based upon stomachs collected from the north Yellow Sea during autumn in 2007, feeding ecology of Lophius litulon was investigated. The results showed that demersal fishes and shrimps were the most important prey groups of L.

根據(jù)2007年秋季在黃海北部海域進(jìn)行的定點底拖網(wǎng)調(diào)查，對黃鮟鱇的攝食生態(tài)進(jìn)行了初步研究国产日韩欧美在线电影院日本黄色网站。

Based on monthly fishery resources investigation data of demersal trawl from 1986~1987 in the Pearl River Estuary and adjacent waters,the paper quantitatively analyzed variation of fish community of various species by cluster analysis and principal coordinates analysis of a package of MVSP.

根據(jù)1986~1987年珠江口及其鄰近水域漁業(yè)資源的周年月份調(diào)查數(shù)據(jù)一级特黄特色的免费大片观看，運用MVSP軟件包中的聚類分析和主坐標(biāo)分析對珠江口魚類群落的時空變化進(jìn)行定量分析，描述珠江口魚類群落的季節(jié)變化和區(qū)域變化特征，把珠江口從時空上劃分為4個季節(jié)和5個水域国产黄在线观看免费观看网站，并與傳統(tǒng)的劃分方法作比較又黄又湿又刺激一区二区三区，討論了這種分析結(jié)果的合理性。

Community ; Index of similarity ; Index of diversity ; Cluster analysis ; Dendrogram ; Demersal fish ; Deep sea ; East China Sea

群落日韩成人教师在线播放视频；相似性指數(shù)日韩第一区自拍视频在线观看网站；多樣性指數(shù)；聚類分析亚洲第页；樹狀圖淫荡淫乱一级黄色电影网址；底層魚類；深海黄频又色又硬又爽；東海

Benthos feeders were bottom-dwelling or demersal species.

食底棲動物的魚類9999免费视频，主要是一些底層和近底層魚類。

The results suggest that policy simulation aimed to maximize the economic will increasing all fishing effort of all fishing sector except demersal trawl should be reduced 43.2%, and social strategy were suggested increasing small-scale fishing effort to satisfy social benefits, especially for miscellaneous will increase 3.48 times on current level, maximize ecological suggested all fishing sector should be reduced drastically or stop.

結(jié)果表明：以經(jīng)濟利益最大化為管理策略時會提高所有漁具的捕撈努力量三级片免费网站视频，除了拖網(wǎng)下降43.2%之外www.日本jizz.com；以社會利益最大化為管理策略時模型要求極大地增加小型漁業(yè)，尤其是混合漁業(yè)的捕撈努力量將上升3.34倍另类欧美97性XXXXX；而以生態(tài)穩(wěn)定性最大化為管理目標(biāo)時bbixxcon，模型要求所有漁業(yè)的捕撈努力量都必須降低甚至停止。