Fauna Norvegica最新文献

Radiocarbon dating of naturally shed reindeer antlers melted out of retreating and down-wasting ice patches and ice caps in western Norway 挪威西部退缩和消减的冰斑和冰盖中自然脱落的驯鹿角的放射性碳年代测定

Fauna Norvegica Pub Date : 2024-07-02 DOI: 10.5324/fn.v43i0.5854

A. Nesje

{"title":"Radiocarbon dating of naturally shed reindeer antlers melted out of retreating and down-wasting ice patches and ice caps in western Norway","authors":"A. Nesje","doi":"10.5324/fn.v43i0.5854","DOIUrl":"https://doi.org/10.5324/fn.v43i0.5854","url":null,"abstract":"A rise in summer temperatures, especially since the turn of the 21st century, has caused negative mass balance and marginal retreat of ice caps and ice patches in western Norway. Twentytwo naturally shed reindeer antlers found at retreating and down-melting margins of fourteen retreating ice patches and ice caps on mountain summits in western Norway during the recent decades have been radiocarbon dated. The reindeer antlers show no evidence of being sawed or cut off the skull or any engravings/scrape marks if the antlers had been handled by humans. The oldest reindeer antler in this study dates at 2201-2132 cal. yr BCE. Four dated antlers fall within the age range 2300-2000 cal. yr BCE. Single dates fall within the time ranges 1100 to 1000, 900 to 800, and 500 to 300 cal. yr BCE. Four dated antlers are within the time range 200 BCE to 100 cal. yr CE and two dated antlers fall within the time range 600 to 800 cal. yr CE. Finally, fifteen dates fall within the time range 1300-1900 cal. yr CE, the highest number (n=11) between 1300 and 1600 cal. yr CE. The temperature decline and increased precipitation causing advancing glaciers and ice caps, accompanied by growing ice patches during the Neoglacial period, including the early phase of the Little Ice Age, provided good preservation conditions for the reindeer antlers during the Little Ice Age, with extensive ice and snow cover in the high mountains in western Norway.","PeriodicalId":35994,"journal":{"name":"Fauna Norvegica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141685202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Considerations needed for analysing data from the Swedish Electrofishing RegiSter (SERS), with special reference to the RivFishTIME database of long-term riverine fish surveys 分析瑞典电鱼系统 (SERS) 数据时需要考虑的因素，特别是 RivFishTIME 长期河流鱼类调查数据库

Fauna Norvegica Pub Date : 2023-12-20 DOI: 10.5324/fn.v42i0.5647

Joacim Näslund, Mikael Andersson, Sara Bergek, Erk Degerman, Serena Donadi, Jon Duberg, Kerstin Holmgren, Anders Kinnerbäck, Berit Sers, Thomas Staveley, Helena Strömberg, Erik Myrstener

{"title":"Considerations needed for analysing data from the Swedish Electrofishing RegiSter (SERS), with special reference to the RivFishTIME database of long-term riverine fish surveys","authors":"Joacim Näslund, Mikael Andersson, Sara Bergek, Erk Degerman, Serena Donadi, Jon Duberg, Kerstin Holmgren, Anders Kinnerbäck, Berit Sers, Thomas Staveley, Helena Strömberg, Erik Myrstener","doi":"10.5324/fn.v42i0.5647","DOIUrl":"https://doi.org/10.5324/fn.v42i0.5647","url":null,"abstract":"The published database RivFishTIME (Comte et al. 2021, Global Ecology and Biogeography, doi: 10.1111/geb.13210) includes a large section of time-series data on fish abundance in Swedish rivers from the Swedish Electrofishing RegiSter, SERS. Knowledge about the limitations of the source data are important when extracting and analyzing data and with this brief note we provide some details that may be helpful for interpreting the Swedish time-series. The note highlights the importance of linking vital metadata to extracted focal data when constructing new databases, especially concerning time series data from monitoring programs conducted in non-randomly selected sites with human environmental impacts. Many of the SERS data come from rivers that have been affected by human impact, e.g. liming to mitigate environmental acidification and hydropower dams, since before monitoring was initiated. Data in SERS are also biased towards shallow salmonid habitats, due to the configuration of Swedish monitoring programs. Hence, data from many rivers are not representative of their fish biodiversity in general. This information is vital for appropriate interpretation of fish biodiversity trends. For RivFishTIME analyses considerations are important since Swedish data constitutes a large proportion of the database. We also provide background information about SERS and references to other Swedish databases containing complementary information. Finally, we provide contact information of the SERS database curators, who can assist prospective analysts with data extraction from SERS.","PeriodicalId":35994,"journal":{"name":"Fauna Norvegica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138955708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Annual growth of brown trout in alpine lakes is highly influenced by spring snow depth and ice-out day 高寒湖泊褐鳟的年生长受春季积雪深度和出冰日的影响较大

Fauna Norvegica Pub Date : 2023-10-24 DOI: 10.5324/fn.v42i0.5071

Reidar Borgstrøm

引用次数: 0

Distribution of the gill parasite Discocotyle sagittata (Monogenea: Polyopisthocotylea) in parr of Atlantic salmon Salmo salar and sea trout S. trutta in Norwegian rivers 挪威河流中部分大西洋鲑鱼和海鳟鱼鳃寄生弓形盘尾虫(单属:多子叶目)的分布

Fauna Norvegica Pub Date : 2023-10-24 DOI: 10.5324/fn.v42i0.5063

Tor Atle Mo

引用次数: 0

The first record of Gyraulus cf. acronicus (Gastropoda, Heterobranchia, Planorbidae) in waterbodies of the Novaya Zemlya Archipelago 新地群岛水体中Gyraulus cfc . acronicus(腹足目，异鳃目，Planorbidae)的首次记录

Fauna Norvegica Pub Date : 2023-02-28 DOI: 10.5324/fn.v42i0.4917

N. B. Ovchankova, A. Krasheninnikov

引用次数: 0

A paradoxical bias in knowledge about Norwegian freshwater fishes: research efforts during 1980-2020 关于挪威淡水鱼知识的矛盾偏见:1980-2020年的研究工作

Fauna Norvegica Pub Date : 2023-02-28 DOI: 10.5324/fn.v42i0.4965

L. A. Vøllestad

{"title":"A paradoxical bias in knowledge about Norwegian freshwater fishes: research efforts during 1980-2020","authors":"L. A. Vøllestad","doi":"10.5324/fn.v42i0.4965","DOIUrl":"https://doi.org/10.5324/fn.v42i0.4965","url":null,"abstract":"Norwegian freshwater systems are in general species poor. That is particularly the case for the freshwater fishes. Only 32 species are considered native, whereas an additional 12 species are non-native. Some of the non-native species are also considered to be invasive and have negative ecosystem effects. Freshwater fishes are exposed to numerous stressors through their life cycle, many of which are of anthropogenic origin. In order to manage and conserve the diversity of fish there is a need for basic knowledge and understanding. Here I make an effort to review the published research on all Norwegian freshwater fish species during the 1980-2020 period, based on a standardized search on the Web of Science. Over 2000 relevant articles were retrieved and evaluated following the search. The research activity has been highly biased, with most research activity directed at a few species of high economic and societal value. Most work was directed at Atlantic salmon Salmo salar and brown trout S. trutta, and in general towards species within the salmonid family. Extremely little attention was directed at species such as the lampreys (four species) and sculpins (three species). Also, many species that has been listed on the Norwegian Red List during various time periods has not been given any particular attention. This lack of attention was also evident for most of the non-native species. The strong bias in research activity and lack of attention given to many species will clearly lead to difficulties in making appropriate management decisions. This is unfortunate, in particular in a time when climate change may lead to numerous ecosystem level changes.","PeriodicalId":35994,"journal":{"name":"Fauna Norvegica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45009641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Upper thermal threshold of Lepidurus arcticus (Branchiopoda, Notostraca) in lakes on the southern outreach of its distribution range 在其分布范围南缘的湖泊中，北方鳞虱(branchi足目，Notostraca)的上热阈值

Fauna Norvegica Pub Date : 2021-12-07 DOI: 10.5324/fn.v41i0.3832

T. Qvenild, E. Fjeld, A. Fjellheim, J. Hammar, T. Hesthagen, Hanna-Kaisa Lakka

{"title":"Upper thermal threshold of Lepidurus arcticus (Branchiopoda, Notostraca) in lakes on the southern outreach of its distribution range","authors":"T. Qvenild, E. Fjeld, A. Fjellheim, J. Hammar, T. Hesthagen, Hanna-Kaisa Lakka","doi":"10.5324/fn.v41i0.3832","DOIUrl":"https://doi.org/10.5324/fn.v41i0.3832","url":null,"abstract":"The Arctic tadpole shrimp Lepidurus arcticus has a circumpolar distribution and the Scandes (Fennoscandian Mountains) marks its southernmost limit in Europe. Within this area, 391 natural and 88 regulated lakes with L. arcticus have been identified, of which 87% are above the treeline. The lakes hosting L. arcticus decrease in altitude from south to north, which results from its temperature preferences. The majority of the locations are at a lower lake air temperature than 11°C which is equivalent to a water temperature near 14°C. This is assumed to be near the upper thermal threshold for L. arcticus. In lakes that exceed this average summer water temperature (1 July – 15 September), sustainable populations seem to be rare. In warmer lakes, life cycle mismatches are assumed to explain the absence of L. arcticus, most likely by affecting the embryo and juvenile stages. The distribution appears to be dichotomous, with one large northern area north of 65°N and one separated southern “island”. Only two locations of L. arcticus are known for the area between latitudes 62.88 and 64.39°N. In this part of the Scandes, the lakes are likely too warm to host L. arcticus as most of them are situated below 700 m a.s.l. This may also be the case in the northernmost region, north of 70°N, where only 11 populations are recorded. Most of the lakes in this area typically occurs below 400 m a.s.l. L. arcticus populations are sensitive to fish predation, and dense fish populations may be another stressor limiting its distribution. In contrast to water bodies in the High Arctic where L. arcticus only exists in shallow, fishless ponds, in the Scandes they co-exist with fish in 97% of the findings. Global warming has already modified the environment of the Scandes, and populations of L. arcticus are at threat in many of the small and shallow water bodies at low altitudes.","PeriodicalId":35994,"journal":{"name":"Fauna Norvegica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70786038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Introduced European minnow Phoxinus phoxinus in alpine lakes may increase total mercury concentration in brown trout Salmo trutta 在高山湖泊中引入的欧洲明鱼Phoxinus Phoxinus可能会增加褐鳟Salmo trutta的总汞浓度

Fauna Norvegica Pub Date : 2021-11-26 DOI: 10.5324/fn.v41i0.3967

R. Borgstrøm, S. Rognerud, S. Meland, B. O. Rosseland

{"title":"Introduced European minnow Phoxinus phoxinus in alpine lakes may increase total mercury concentration in brown trout Salmo trutta","authors":"R. Borgstrøm, S. Rognerud, S. Meland, B. O. Rosseland","doi":"10.5324/fn.v41i0.3967","DOIUrl":"https://doi.org/10.5324/fn.v41i0.3967","url":null,"abstract":"In Norway, the cyprinid European minnow Phoxinus phoxinus has been spread far outside its previous natural distribution area, with lots of establishments in mountain lakes where brown trout Salmo trutta originally was the only fish species. We have analysed δ15N and total mercury (THg) concentration in brown trout from eight lakes, situated between 1031 and 1244 m a.s.l. on the Hardangervidda mountain plateau, southern Norway. One of the lakes is inhabited by brown trout and European minnow, while in the other seven lakes, brown trout is the only fish species. δ15N of brown trout were significantly higher in the population with co-existing European minnow, indicating a higher trophic position of brown trout in this population than in the allopatric populations, probably caused by piscivory, as indicated by frequent occurrence of European minnow in brown trout diet. The mercury concentrations in brown trout from this lake had values up to around 0.4 mg THg per kg wet weight. The concentrations were significantly higher than in the lakes without European minnow, and together with the δ15N values, indicating that translocation and establishment of European minnow may increase the trophic position of brown trout in previously allopatric populations, and thereby also increase the mercury level. ","PeriodicalId":35994,"journal":{"name":"Fauna Norvegica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49512958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Alien amphipods (Arthopoda; Crustacea) in the Tista Estuary, Halden, southeastern Norway 外来的片脚类动物(节肢动物;挪威东南部哈尔登的Tista河口的甲壳类动物

Fauna Norvegica Pub Date : 2021-11-26 DOI: 10.5324/fn.v41i0.3957

I. Spikkeland, J. P. Nilssen

{"title":"Alien amphipods (Arthopoda; Crustacea) in the Tista Estuary, Halden, southeastern Norway","authors":"I. Spikkeland, J. P. Nilssen","doi":"10.5324/fn.v41i0.3957","DOIUrl":"https://doi.org/10.5324/fn.v41i0.3957","url":null,"abstract":"Two new amphipods for Norway Melita nitida and Corophium multisetosum (Crustacea; Amphipoda) were registered in brackish waters in the Tista Estuary in Halden, southeastern Norway. Both species were found in the samples from Tista’s outlet into the Idde Fjord, C. multisetosum in the beach zone and M. nitida at about 4 m depth. Melita nitida is a North American species first found in Europe in the Netherlands in 1998, and since then dispersed into the Baltic Sea via the Kiel Canal and now also found several places on the German Baltic Sea coast and in the Black Sea. Corophium multisetosum was collected even before the 1920s in Western Europe, and is considered native for Europe, whereas its relationship to North America is more ambiguous. From the British Isles and the Netherlands, it seems to have spread to Germany, Poland, Denmark and Sweden, and at present Norway. Until now the two species were found in small numbers at the Norwegian sites and their influence on the total benthic community is probably negligible in this initial phase. The Tista Estuary in Halden apparently appears to be a hotspot for alien brackish water species in Norway. Generally estuaries, with their combination of brackish water jointly with their unsaturated ecological niches and intensive international ship traffic, seem to possess the highest potential infection rate for aquatic systems with alien acrozoobenthic species.","PeriodicalId":35994,"journal":{"name":"Fauna Norvegica","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48125994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A review of grass flies (Diptera, Chloropidae) of Karelia and Murmansk Province of Russia 俄罗斯卡累利阿省和摩尔曼斯克省草蝇类（直翅目，叶蝉科）的研究进展

Fauna Norvegica Pub Date : 2020-07-02 DOI: 10.5324/fn.v40i0.3406

E. Nartshuk, A. Polevoi, A. Przhiboro

引用次数: 2