標(biāo)題: Titlebook: Biology and Conservation of the European Sturgeon Acipenser sturio L. 1758; The Reunion of the E Patrick Williot,Eric Rochard,J?rn Gessner [打印本頁] 作者: Perforation 時(shí)間: 2025-3-21 18:39
書目名稱Biology and Conservation of the European Sturgeon Acipenser sturio L. 1758影響因子(影響力)
書目名稱Biology and Conservation of the European Sturgeon Acipenser sturio L. 1758影響因子(影響力)學(xué)科排名
書目名稱Biology and Conservation of the European Sturgeon Acipenser sturio L. 1758網(wǎng)絡(luò)公開度
書目名稱Biology and Conservation of the European Sturgeon Acipenser sturio L. 1758網(wǎng)絡(luò)公開度學(xué)科排名
書目名稱Biology and Conservation of the European Sturgeon Acipenser sturio L. 1758被引頻次
書目名稱Biology and Conservation of the European Sturgeon Acipenser sturio L. 1758被引頻次學(xué)科排名
書目名稱Biology and Conservation of the European Sturgeon Acipenser sturio L. 1758年度引用
書目名稱Biology and Conservation of the European Sturgeon Acipenser sturio L. 1758年度引用學(xué)科排名
書目名稱Biology and Conservation of the European Sturgeon Acipenser sturio L. 1758讀者反饋
書目名稱Biology and Conservation of the European Sturgeon Acipenser sturio L. 1758讀者反饋學(xué)科排名
作者: 不能根除 時(shí)間: 2025-3-21 21:56 作者: Femine 時(shí)間: 2025-3-22 00:48 作者: famine 時(shí)間: 2025-3-22 05:38
ooperation plan is underlined. A part of the book is devoted to perspectives. Illustrations of the European sturgeon, mainly in photographs, but also in stamps and paintings, are presented..978-3-642-42801-2978-3-642-20611-5作者: 違反 時(shí)間: 2025-3-22 09:33
Book 2011’s organizations have also been asked to contribute, and the key role of a French-German cooperation plan is underlined. A part of the book is devoted to perspectives. Illustrations of the European sturgeon, mainly in photographs, but also in stamps and paintings, are presented..作者: countenance 時(shí)間: 2025-3-22 15:05
Book 2011 all over Western Europe ranging from the Black Sea to the Baltic, is now on the verge of extinction. Major aspects of its biology and management, including mismanagement, are provided in a historic perspective. Similarly, the changes in the restoration programs (in situ and ex situ) initiated in Fr作者: 漂浮 時(shí)間: 2025-3-22 20:27 作者: Fibrinogen 時(shí)間: 2025-3-22 22:32 作者: 秘密會(huì)議 時(shí)間: 2025-3-23 05:02 作者: podiatrist 時(shí)間: 2025-3-23 09:27
Rudolf Ratzel,Hans-Dieter Lippertby sturgeons of French waters at the end of the last glaciation. More than 30 sites have revealed sturgeon remains, some of which are very high upstream. Both species (. and .) were present on the Atlantic front and the Channel–North Sea. Today, new questions are raised and discussed.作者: 激勵(lì) 時(shí)間: 2025-3-23 12:20
Rudolf Ratzel,Hans-Dieter Lippert Atlantic coast, as well as in the Mediterranean and Adriatic Seas, which is concluded to represent the origin of the species range. Contrastingly, the diversity was low on the European Atlantic and the North Sea coasts as well as in the Black Sea, suggesting that these areas were colonized only recently.作者: cultivated 時(shí)間: 2025-3-23 15:38
Rudolf Ratzel,Hans-Dieter Lippertrly twentieth century. In addition to the European sturgeon, Atlantic sturgeon (.), beluga (.) and Adriatic sturgeon (.) are discussed as presumably former endemic species. Such status remains open given that the occurrence of isolated specimens is not taken as conclusive evidence for the upgrading of these taxa to a native species status.作者: ARC 時(shí)間: 2025-3-23 21:38
Rudolf Ratzel,Hans-Dieter Lippertradient. They show common denominators in the subtidal area as far as depth, muddy or sandy sediment are concerned, and similar current velocity. These habitats constitute an important feeding ground rich in tube-dwelling polychaetes (. sp. and .), which have been identified as the dominant prey items of European sturgeon juveniles.作者: 手銬 時(shí)間: 2025-3-23 23:08
Rudolf Ratzel,Hans-Dieter Lippertsess the evolution of landings and caviar production. According to our estimates, with the intensive fishing of juveniles, landings reached 120?t in 1920, with a production of 3,000?kg of caviar. The sharp decrease after World War II up to 1980 is described.作者: 顯赫的人 時(shí)間: 2025-3-24 03:04
Rudolf Ratzel,Hans-Dieter Lippertter 1840 in Germany. The endpoint of a targeted fishery occurred in the early twentieth century for the majority of rivers. River constructions to improve navigation, pollution, as well as overharvest interlinking with insufficient protection led to the extirpation of the species in the North Sea and its tributaries.作者: 盡忠 時(shí)間: 2025-3-24 07:45
Rudolf Ratzel,Hans-Dieter Lippertne and disappearance in the 1920s, due to increasing fishing and pollution. In Italy, sturgeon fishing was declared illegal in the 1980s, but in a few years the species disappeared. Nowadays, a reintroduction plan could take advantage of the experience gained with the recovery plan carried out for ..作者: Anthem 時(shí)間: 2025-3-24 11:46 作者: 能得到 時(shí)間: 2025-3-24 17:09
Morphological Distinction Between Juvenile Stages of the European Sturgeon , and the Atlantic Sturgein fish of 4–20?cm is assessed. We outline valid diagnostic characteristics in juveniles (number of dorsal and lateral scutes, surface/type of scutes, presence of fontanelle), giving comments on their usefulness with regard to the diagnostic significance in adults.作者: 朋黨派系 時(shí)間: 2025-3-24 21:33
Ontogeny of the European Sturgeon, ,ally oriented spikes are very prominent. In older juveniles the spikes regress; in 30?cm long juveniles the spikes have nearly disappeared. The ontogeny of the incomplete cover of the gills by the operculum is shown. The distribution of the ampullary electroreceptors in a 27-day-old larva is described.作者: Customary 時(shí)間: 2025-3-25 01:50 作者: 種族被根除 時(shí)間: 2025-3-25 05:38
Palaeogeographic Patterns of , Atlantic coast, as well as in the Mediterranean and Adriatic Seas, which is concluded to represent the origin of the species range. Contrastingly, the diversity was low on the European Atlantic and the North Sea coasts as well as in the Black Sea, suggesting that these areas were colonized only recently.作者: Juvenile 時(shí)間: 2025-3-25 07:51 作者: 慢慢沖刷 時(shí)間: 2025-3-25 13:37 作者: 處理 時(shí)間: 2025-3-25 18:51 作者: Aphorism 時(shí)間: 2025-3-25 22:05 作者: 先驅(qū) 時(shí)間: 2025-3-26 00:28 作者: 整潔 時(shí)間: 2025-3-26 08:18
Rudolf Ratzel,Hans-Dieter Lippertties. Because of diverse anthropogenic regional pressures, the sturgeon’s range decreased drastically, and population disappearances were reported earlier in the twentieth century in the northern part of its range.作者: 外向者 時(shí)間: 2025-3-26 10:42
Rudolf Ratzel,Hans-Dieter Lippertnne basin. Some characteristics varied with latitude, e.g., age at puberty, onset of reproduction migration. Characteristics of puberty and sexual cycles in farmed sturgeon are given, including the few available data on ..作者: Osmosis 時(shí)間: 2025-3-26 15:12
An Overview on Geographical Distribution from Past Descriptionsties. Because of diverse anthropogenic regional pressures, the sturgeon’s range decreased drastically, and population disappearances were reported earlier in the twentieth century in the northern part of its range.作者: CODE 時(shí)間: 2025-3-26 19:54
Characteristics of the Reproductive Cycle of Wild ,nne basin. Some characteristics varied with latitude, e.g., age at puberty, onset of reproduction migration. Characteristics of puberty and sexual cycles in farmed sturgeon are given, including the few available data on ..作者: CESS 時(shí)間: 2025-3-26 23:58 作者: 古董 時(shí)間: 2025-3-27 04:28 作者: 空洞 時(shí)間: 2025-3-27 09:17 作者: 腫塊 時(shí)間: 2025-3-27 13:17
Brief Introduction to Sturgeon with a Special Focus on the European Sturgeon, , L. 1758sturgeon species are currently under threat, while the situation is slightly better in America. The European sturgeon colonized the continent from the Black Sea to the Baltic, through the Mediterranean, the Western Atlantic Ocean, the English Channel, and the North Sea (Fig.?1.1).作者: 孤獨(dú)無助 時(shí)間: 2025-3-27 17:06 作者: myocardium 時(shí)間: 2025-3-27 18:32 作者: cleaver 時(shí)間: 2025-3-28 00:35 作者: 生氣的邊緣 時(shí)間: 2025-3-28 02:28
Morphological Distinction Between Juvenile Stages of the European Sturgeon , and the Atlantic Sturge In Atlantic and European sturgeon parameters used for species segregation have been established for subadults and adults. So far, with regard to juvenile stages of . currently used for restocking, diagnostic morphological characteristics allowing the distinction between the two species have not bee作者: 挖掘 時(shí)間: 2025-3-28 06:31 作者: 厚臉皮 時(shí)間: 2025-3-28 12:36
An Overview on Geographical Distribution from Past Descriptions region, i.e., Europe and North Africa. Of the 196 basin units investigated, 24 were selected for spawning by sexually mature individuals, and 44 were frequented by occasional vagrants. Its spatial distribution did not follow the classic “core–periphery” model noted for most European diadromous fish作者: cartilage 時(shí)間: 2025-3-28 15:34
Ancient Sturgeon Populations in France Through Archaeozoological Remains, from Prehistoric Time Untiall over France, and the review of specific determinations according to morphological criteria. Whilst . remains to this day the only identified species on the Mediterranean side, rivers of the Atlantic coast and the north of France have sheltered by a majority another species, ., from the Neolithic作者: 我的巨大 時(shí)間: 2025-3-28 22:49
Palaeogeographic Patterns of , such as museum specimens or archaeological remains represents the only opportunity to access the past diversity of the species. Extracting and analyzing DNA from ancient material provide the means to compare genetically sturgeons from the entire former geographical range of the species. Here we pre作者: MOCK 時(shí)間: 2025-3-29 00:00 作者: 向下 時(shí)間: 2025-3-29 04:32 作者: outrage 時(shí)間: 2025-3-29 10:49 作者: 死亡 時(shí)間: 2025-3-29 13:12 作者: Ligneous 時(shí)間: 2025-3-29 19:29 作者: LEER 時(shí)間: 2025-3-29 22:12
Historic Overview on the Status of the European Sturgeon (,) and Its Fishery in the North Sea and It that it can be derived from available fisheries data. The alteration in fishing techniques and fishing sites, from a strictly riverine fishery to coastal fishery average in the 1880s and subsequently, the increased marine catch is illustrated. Its effects on fish size as well as on the population a作者: 欲望小妹 時(shí)間: 2025-3-30 02:45 作者: Functional 時(shí)間: 2025-3-30 06:02
The Historical and Contemporary Status of the European Sturgeon, , L., in Italygreat sturgeon, . L., while it was the only species on the Tyrrhenian Coast. It was the most common sturgeon species in the Po River, where the first signal of decline, at the end of the nineteenth century, became a progressive trend in the first half of the following century and accelerated in the 作者: 密切關(guān)系 時(shí)間: 2025-3-30 09:57 作者: 易受刺激 時(shí)間: 2025-3-30 14:05
Patrick Williot,Eric Rochard,J?rn GessnerDescribes all aspects of the biology, management and restoration programs of Acipenser sturio.Written by experts.Presents illustrations of the European sturgeon by photos, stamps, and paintings.Includ作者: Progesterone 時(shí)間: 2025-3-30 20:33 作者: 津貼 時(shí)間: 2025-3-30 23:22 作者: Embolic-Stroke 時(shí)間: 2025-3-31 02:11 作者: 木訥 時(shí)間: 2025-3-31 06:09
https://doi.org/10.1007/978-3-642-20611-5Acipenser sturio; conservation; sturgeon, Atlantic; sturgeon, European; Fish and Wildlife Biology作者: 使尷尬 時(shí)間: 2025-3-31 09:56
978-3-642-42801-2Springer-Verlag Berlin Heidelberg 2011作者: 過分 時(shí)間: 2025-3-31 15:45 作者: Isolate 時(shí)間: 2025-3-31 21:07
https://doi.org/10.1007/978-3-662-12171-9ry makes it possible to determine the different sizes and age categories of ancient specimens by measuring specific bones which are correlated with the same measurements taken on modern specimens of known total length (TL) and mass. These references have been established for ., . (both attested in E作者: 重疊 時(shí)間: 2025-3-31 22:12
