Under the bridge: marking sites prove the presence of Eurasian otter Lutra lutra in the Poljanska Sora River valley, Slovenia by Rudi Kraševec, Aleksander Trajbarič, Urša Fležar

“…To confirm the presence of the species in the Slovenian Pre-Alps, we searched for otter scat – spraint, on six tributaries to the Poljanska Sora River of Polhograjsko hribovje, the Pre-Alpine mountains around Polhov Gradec. …”
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An integrative approach to a revision of the freshwater mussel genus Songkhlanaia (Bivalvia, Unionidae), with the description of a new species by Ekgachai Jeratthitikul, Chirasak Sutcharit, Pongpun Prasankok

“…Furthermore, based on the current data, these three species are recognized as endemic and are restricted to disjunct biogeographic areas in Indochina: S. tamodienica in the Songkhla Lake Basin in southern Thailand, S. moreleti in the Tonle Sap and Lower Mekong basins, and S. songkhramensis sp. nov. in the Songkhram Basin and its nearby tributaries of the Middle Mekong Basin.…”
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Karyotype uniformity in populations of the endemic Hemiancistrus fuliginosus (Loricariidae: Hypostomini) collected in the upper and middle Uruguai River by Jocicléia Thums Konerat, Vanessa Bueno, Ana Luiza de Brito Portela-Castro, Isabel Cristina Martins-Santos, Vladimir Pavan Margarido

“…In this study, cytogenetics analyzes in four populations of H. fuliginosus from tributaries of the Uruguai Riverrevealed 2n = 56 chromosomes (30m + 18sm + 6st + 2a) for all populations. …”
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Harpacticoid assemblages (Copepoda: Harpacticoida) in the hyporheic zone of four streams in central Slovenia by Nataša Mori, Anton Brancelj

“…The sampling was conducted in 2002 at 12 locations distributed at a distance of approximately 1 km along each stream including tributaries, at a depth of 30–60 cm in the wetted channel (three sites per location) and depths from 65 to 160 cm on the stream banks (one site per location) using a Bou-Rouch pump. …”
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A Hidden Markov Model Applied to the Daily Spring Precipitation over the Danube Basin by Constantin Mares, Ileana Mares, Heike Huebener, Mihaela Mihailescu, Ulrich Cubasch, Petre Stanciu

“…The stations are situated in localities crossed by the Danube or situated on the principal tributaries. The number of hidden states has been determined by means of BIC values. …”
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THE LAKES OF THE ROMANIAN BLACK SEA COAST. MAN-INDUCED CHANGES, WATER REGIME, PRESENT STATE by PETRE GÂŞTESCU, PETRE BREŢCAN, DACIAN CONSTANTIN TEODORESCU

“…Regarding limans, we would mention the largest one – Babadag, grafted into the valley of the two Northern Dobrogea rivers, Taiţa and Teliţa, situated on the western side of the Razim-Sinoie lagoon (the largest lacustrine complex in Romania); Taşaul, initially located at the mouth of the Casimcea River, flows into the Black Sea; Techirghiol, after the conflence of the two tributaries, Urlichioi (Derea) and Biruinţa; Tatlageac, at the end of the Dulceşti (Tatlageac) Valley, and Mangalia, in the Albeşti Valley. …”
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Study on Irrigation Water Quality in the Rift Valley Areas of Awash River Basin, Ethiopia by Zeyede Aregahegn, Mulate Zerihun

“…This study aimed to evaluate the water quality of the Awash River and its tributaries in the basin used for irrigation purposes. …”
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A human geography analysis of the evolution of the urban morphology of ancient Foshan city from the perspective of Cantonese trading culture by Shaobin Wang, Ye Hou, Weihui Zhang, Cheng Liao, Rongyi Wang

“…The study reveals that since the Northern Song Dynasty, the river area has decreased, while the number of tributaries has increased and extended further inland. …”
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Seasonal Variations of Phosphorus Species in the Overlying and Pore Waters of the Tuohe River, China by Qing Xu, Xiaoping Yu, Yafei Guo, Tianlong Deng, Yu-Wei Chen, Nelson Belzile

“…Overlying sediment and pore waters were collected in summer and winter at upstream (Jintang) and downstream (Neijiang) sites of the Tuohe River, which is one of the five largest tributaries of the Yangtze River in China. Phosphorus species, including soluble reactive phosphorus (SRP), soluble unreactive phosphorus (SUP), and total dissolved phosphorus (TDP), and some diagenetic constituents including dissolved Fe(II), Mn(II), and sulfide in overlying and pore waters, were measured systematically. …”
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MINERALOGICAL AND GEOCHEMICAL FEATURES OF HEAVY CONCENTRATES FROM CREEKS OF THE NORTHWESTERN END OF THE OKHOTSK TERRANE (KHABAROVSK KRAI) by М.А. Pavlova, D.I. Smirnov, D.А. Guskov, S.V. Petrov, M.A. Rassomakhin, A.Yu. Nefyodova

“…The work presents the mineralogical and geochemical features of heavy concentrates from eight gold-bearing tributaries of the Anmandykan 2nd Creek in Khabarovsk krai: West otvilok, East otvilok, Somnitelny, Smezhny, Perevalny, Sobol, Vstrechny and Khvory. …”
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Spatiotemporal Variation Characteristics of Water Pollution and the Cause of Pollution Formation in a Heavily Polluted River in the Upper Hai River by Chunfang Meng, Xiaoyu Song, Kening Tian, Bingxiao Ye, Tianxiu Si

“…Data of 15 water quality parameters were analyzed during 1980–2018 at 19 monitoring sites in the mainstream and major tributaries of the Xinxiang Section of the Wei River (XSWR). …”
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Ectoparasites in Ornamental Shrimps Neocaridina denticulata and Neocaridina palmata from Purbalingga Fish Market Aquariums by Srimurni Kusmintarsih Endang, Hassan Alsheikh Mahmoud Hanan, Husein Sastranegara Moh., Syakuri Hamdan, Nuryanto Agus

“…The Neocaridina genus is one of the atyidae families that inhabit lakes, tributaries, ponds, rivers, and streams. Two species of Neocaridina have become popular in the Indonesian aquarium, namely N. denticulata and N. palmata. …”
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Characterizing Stream Condition with Benthic Macroinvertebrates in Southeastern Minnesota, USA: Agriculture, Channelization, and Karst Geology Impact Lotic Habitats and Communities by Neal D. Mundahl

“…Prior to implementing watershed-wide projects to reduce the impacts of agriculture on regional streams and rivers, stream habitats and benthic aquatic macroinvertebrate communities were assessed at 15 sites on the South Branch Root River and its major tributaries in southeastern Minnesota, USA. Triplicate kick-net samples were collected from each site during three time periods (1998, 1999, 2006/2008) and stream habitats were inventoried within 150 m long sections at each site. …”
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Analysis of the Physicochemical Burden of Oyo State Fish Pond, Ibadan, Southwest Nigeria by BB Babatunde, GN Woke

“…The pond is a recipient of tributaries of wastewaters from Premier Hotel (PHWW), Coca Cola bottling plant (CCWW), University of Ibadan Teaching Hospital (UCHWW) and Bodija Residential area (BDJWW). …”
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Analysis of the Physicochemical Burden of Oyo State Fish Pond, Ibadan, Southwest Nigeria by BB Babatunde, GN Woke

“…The pond is a recipient of tributaries of wastewaters from Premier Hotel (PHWW), Coca Cola bottling plant (CCWW), University of Ibadan Teaching Hospital (UCHWW) and Bodija Residential area (BDJWW). …”
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Lessons from the Case History of a Massive Landslide Dam by Fawad S. Niazi, Aranzazu Pinan-Llamas, Kamran Akhtar

“…A massive landslide created a natural dam on two tributaries of Jhelum River near the town of Hattian Bala in Kashmir in October 2005. …”
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Hazard assessment for a pharmaceutical mixture detected in the upper Tennessee River using Daphnia magna by D. Wolfe, M. Schorr, M. Hanson, C.H. Nelson, S.M. Richards

“…In a 2008 study, 13 pharmaceuticals, ranging in amounts from 0.0028 to 0.1757 µg/l, were identified in the Tennessee River, USA and its tributaries. In order to address the need for risk assessment of environmentally relevant pharmaceutical mixtures, Daphnia magna 21-d life cycle tests were performed on a mixture of 11 of the 13 pharmaceuticals as well as on the individual components of the mixture. …”
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Textural Characteristics and Depositional Regime of the Shitalakshya River Sediments, Bangladesh by Sohag Ali, Mrinal Kanti Roy, Md. Mahmodul Islam, Zillur Rahman, Faruk Ahmed, Abdul Alim, Md. Yeasin Arafath

“…The analyzed samples have unimodal, bimodal, and polymodal distribution, which indicates the sediments are carried by different tributaries and distributaries in the Sitalakshya River system. …”
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Spatial Interpolation of Annual Runoff in Ungauged Basins Based on the Improved Information Diffusion Model Using a Genetic Algorithm by Mei Hong, Ren Zhang, Dong Wang, Longxia Qian, Zhenghua Hu

“…To test our new method, seven experiments for the annual runoff interpolation based on GIDM at 17 stations on the mainstream and tributaries of the Yellow River are carried out and compared with the inverse distance weighting (IDW) method, Cokriging (COK) method, and conventional IDMs using the same sparse observed data. …”
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An ichthyofaunal amendment with the length-weight relations and condition factors of some endemic and invasive freshwater fishes from Western Anatolia by Kurtul Irmak, Kaya Cüneyt, Şen Arda, Özcan Ceylin, Ercivan Deniz, Demiral Kaan, Güngör Melike, İlhan Ali, Sarı Hasan Musa

“…In the scope of this study, fish fauna of Küçük Menderes River and its tributaries, updated with the comparison of the recent ichthyofaunal studies, as well as the length-weight relations (LWR) and condition factors (CF) were estimated for 7 freshwater fish species belonging to six families from the river basin: endemic Oxynoemacheilus eliasi, Cobitis fahireae; invasive, Carassius gibelio, Atherina boyeri, transloce Perca fluviatilis and the native Squalius fellowesii, Cyprinus carpio. …”
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