本文關(guān)鍵詞：南海北部陸坡水域三種中層魚類的生物學(xué)及分布特征　出處：《大連海洋大學(xué)》2015年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 南海陸坡 中層魚類 尾明角燈魚 蝰魚 燭光魚

【摘要】：中層魚類(mesopelagic fish)指棲息于約為200-1000m海洋中層(mesopelagic zone)的海洋魚類。中層魚類是海洋中潛在資源最豐富的類群之一,主要為小型魚類,是大洋及深海食物鏈中連接浮游動物和更高營養(yǎng)層級捕食者的關(guān)鍵種類,有生長快、性成熟早、多數(shù)種類具有晝夜垂直移動習(xí)性等特點(diǎn)。由于捕撈及加工技術(shù)的制約,世界各國未形成持續(xù)穩(wěn)定中層魚類漁業(yè)。近年來隨著研究方法和技術(shù)手段的不斷進(jìn)步,中層魚類巨大的生物量以及對大洋的食物鏈和碳循環(huán)的重要作用逐漸引起國內(nèi)外學(xué)者的重視,部分國家也在探討對中層魚類的經(jīng)濟(jì)開發(fā)。本文首先對中層魚類的分布及資源儲量、生物學(xué)特征、加工利用及生態(tài)地位進(jìn)行綜述,以期為中層魚類的研究及探捕提供參考。尾明角燈魚(Ceratoscopelus warmingii)是南海北部陸坡水域中層魚類的重要種類之一,以往我國對中層魚類的研究較少,對深海生態(tài)系統(tǒng)的認(rèn)知有限。本文根據(jù)2015年6月南海北部陸坡多綜合調(diào)查的拖網(wǎng)及尾明角燈魚生物學(xué)測定資料,對其生物學(xué)特征進(jìn)行了初步的研究。結(jié)果表明,夏季南海北部陸坡的尾明角燈魚的體長范圍為30~64mm,體長由3個(gè)股群組成,三個(gè)股群的三個(gè)股群的體長均值分別為37.52±2.39mm、44.62±2.84mm、49.80±3.17mm,其體長體重關(guān)系式為W=8.418×10-6L3.0985。性腺成熟度以II期、III期居多,50%性發(fā)育(II期及以上)體長為42.5mm,雌雄比為1:0.70,較大個(gè)體雌性居多。在夜間,其平均攝食等級隨時(shí)間逐步增加,20:00、22:00、4:00尾明角燈魚的平均攝食等級分別為0.82、1.58、2.53。以上研究結(jié)果為南海北部陸坡尾明角燈魚的進(jìn)一步研究提供了基礎(chǔ)的參數(shù)及資料。蝰魚(Chauliodus sp.)、燭光魚(Polyipnus sp.)是南海北部陸坡水域中層魚類中重要的巨口魚類,這兩種中層魚類的相關(guān)研究較少,對其了解十分有限。本文根據(jù)2015年6月南海北部陸坡多綜合調(diào)查的蝰魚及燭光魚的生物學(xué)測定資料,對其生物學(xué)特征進(jìn)行了初步的研究。結(jié)果表明,夏季南海北部陸坡的蝰魚的體長范圍為65—243mm,體重范圍0.49-32.32g,其體長體重關(guān)系式為W=8.418×10-6L3.09853。攝食等級以I期、II期居多。燭光魚的體長范圍為31—59mm,體重范圍1.72-10.7g,其體長體重關(guān)系式為W=1.36313×10-4L2.715566。攝食等級以I期、III期居多。以上研究結(jié)果為蝰魚、燭光魚的進(jìn)一步研究提供了基礎(chǔ)的參數(shù)及資料。研究尾明角燈魚的分布特征對了解南海陸坡生態(tài)系統(tǒng)有著十分重要的意義。本文根據(jù)南海北部陸坡多綜合調(diào)查秋季及夏季航次的拖網(wǎng)及相關(guān)環(huán)境資料,對其分布、漁場重心及其分布與環(huán)境因子的關(guān)系進(jìn)行了初步的研究。結(jié)果表明,白天在600m以淺水層多未捕獲尾明角燈魚,傍晚開始捕獲少量該樣品,夜間在上層捕獲的量較大。以上結(jié)果反映了南海北部陸坡尾明角燈魚晝夜垂直移動及白天多分布于700m以深的習(xí)性,其漁場重心漁場重心2014年秋季較2015年夏季南偏,其分布與環(huán)境因子的關(guān)系下網(wǎng)時(shí)間、其所在水層的溫度、溶解氧存在一定的相關(guān)關(guān)系。蝰魚是南海北部陸坡水域中層魚類中重要的巨口魚類。本文根據(jù)南海北部陸坡多綜合調(diào)查秋季及夏季航次的拖網(wǎng)及相關(guān)環(huán)境資料,對其分布、漁場重心及其分布與環(huán)境因子的關(guān)系進(jìn)行了初步的研究。結(jié)果表明,在400m以深水層捕獲蝰魚較多,70m左右在2015年夏季有少量捕獲。經(jīng)GAM模型分析蝰魚的分布與水深、拖網(wǎng)的水層、時(shí)間、表層的溫度、溶解氧可能存在一定的相關(guān)關(guān)系。
[Abstract]:The middle layer fish (mesopelagic fish) refers to the marine fishes that perch about the middle layer of the ocean (mesopelagic zone) of the 200-1000m. Mesopelagic fish is one of the most abundant taxa potential resources in the ocean, mainly for small fish, is a key type of ocean and deep-sea food chain connected with animal plankton and higher trophic level predators, with fast growth, early maturity, most species of diel vertical migration habits etc.. Due to the constraints of fishing and processing technology, there is no sustainable and stable fish fishery in the world. In recent years, with the continuous progress of research methods and technological means, the great biomass of middle fishes and its important role in the food chain and carbon cycle of the ocean have attracted the attention of scholars both at home and abroad, and some countries are also exploring the economic development of middle-level fishes. In this paper, the distribution and resource reserves, biological characteristics, processing and utilization and ecological status of middle fishes are reviewed first, so as to provide references for the research and exploration of middle-level fishes. The tail Mingjiaodeng fish (Ceratoscopelus warmingii) is one of the important species in northern slope of the South China Sea waters of mesopelagic fishes in China in the past, the middle-level fish research on deep-sea ecosystems cognitive co.. According to the June 2015 survey of the northern slope of the South China Sea more comprehensive and Mingjiaodeng fish tail trawl biological measurement data, the biological characteristics were studied. The results show that the length of the northern slope of the South China Sea summer Mingjiaodeng fish tail 30~64mm, body length by 3 groups of three shares, three shares of stock group group the mean body length were 37.52 + 2.39mm, 44.62 + 2.84mm, 49.80 + 3.17mm, the relationship between body length and body weight was W=8.418 * 10-6L3.0985. The maturity of gonadal maturity is mostly in II stage and III stage. The 50% sex development (II stage and above) body length is 42.5mm, the male and female ratio is 1:0.70, and the larger individual female are most. At night, the average feeding intensity gradually increased with time, the average grade of 20:00, 22:00 and 4:00 feeding fish tail Mingjiaodeng were 0.82, 1.58, 2.53. The above research results for further study on the northern slope of the South China Sea fish tail Mingjiaodeng provides parameters and data base. Chauliodus (Chauliodus sp.) (Polyipnus sp.), candle fish is an important northern slope of the South China Sea waters in the middle of fish dragonfishes, related research of the two middle-level fish less, the understanding is very limited. According to the June 2015 northern slope of the South China Sea more comprehensive biological investigation and determination of viperfish candle fish, its biological characteristics were studied. The results show that the length of viperfish northern slope of the South China Sea in the summer of 65 - 243mm, weight range of 0.49-32.32g, the relationship between body length and body weight was W=8.418 * 10-6L3.09853. The intake grade was mostly in phase I and II. The body length range of the candlelight fish is 31 - 59mm, and the body weight range is 1.72-10.7g. The body length weight relation is W=1.36313 x 10-4L2.715566. The intake grade was mostly in phase I and III. The above results provide the basic parameters and data for the further study of viperfish, candle fish. Research on the distribution characteristics of Mingjiaodeng tail fish has a very important significance for understanding the continental slope of the South China Sea ecosystem. Based on the northern slope of the South China Sea more comprehensive investigation of autumn and summer cruises trawl and related environmental data, the relationship between the distribution and barycenter of their distribution and environmental factors were studied. The results show that during the day in the 600m on the shallow layer does not capture Mingjiaodeng tail fish, the evening began to catch a little of the sample, the night in the upper capture large amount. These results reflect the northern slope of the South China Sea fish tail Mingjiaodeng diel vertical migration and distribution in the daytime 700m in the deep habit, the barycenter of barycenter of autumn of 2014 compared to 2015 summer south, there exists a certain relationship between the distribution and environmental factors in the network time, the water temperature, dissolved oxygen. Viperfish is an important northern slope of the South China Sea waters dragonfishes fishes in the middle. Based on the northern slope of the South China Sea more comprehensive investigation of autumn and summer cruises trawl and related environmental data, the relationship between the distribution and barycenter of their distribution and environmental factors were studied. The results showed that in the 400m to capture more deep levels of viperfish, about 70m in the summer of 2015, a small amount of capture. The GAM model analysis of viperfish distribution and water depth and trawl aquifer, time, surface temperature, dissolved oxygen, there may be some relationship.
【學(xué)位授予單位】：大連海洋大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：S917.4

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1 楊雨燕;南海北部陸坡水域三種中層魚類的生物學(xué)及分布特征[D];大連海洋大學(xué);2015年

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