Parasitic fauna of farmed freshwater ornamental fish in the northwest of Iran

AbstractThe Urmia Lake Basin is located between the West and East Azerbaijan provinces in the northwest of Iran. Lake Urmia is the twentieth largest lake and second largest hypersaline lake in the world. Stratigraphic columns have been constructed, using published information, to compare the sedimentary units deposited from the Permian to the Neogene on the east and west sides of the lake, and to use these to quantity subsidence and uplift. East of the lake, the sedimentary section is more complete and has been the subject of detailed stratigraphic studies, including the compilation of measured sections for some units. West of the lake, the section is incomplete and less work has been done; three columns illustrate variations in the preserved stratigraphy for the time interval. In all cases, the columns are capped by the Oligocene–Miocene Qom Formation, which was deposited during a post-orogenic marine transgression and unconformably overlies units ranging from Precambrian to Cretaceous. Permian to Cretaceous stratigraphy is used to measure subsidence in the Lake Urmia basin up to the end of the Cretaceous, and then, the subsequent orogenic uplift, which was followed by further subsidence recorded by the deposition of the Qom Formation in the Oligocene–Miocene.

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Potential benefit of I-Tiao-Gung (Glycine tomentella) extract to enhance ornamental fish welfare during live transport

Aquaculture ◽

10.1016/j.aquaculture.2020.736304 ◽

2021 ◽

Vol 534 ◽

pp. 736304

Author(s):

Su Mei Wu ◽

Jung-Ren Chen ◽

Chin-yen Chang ◽

Yu-Jen Tseng ◽

Bonnie Sun Pan

Keyword(s):

Potential Benefit ◽

Ornamental Fish ◽

Fish Welfare ◽

Glycine Tomentella

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Length-weight relationships of five ornamental fish species harvested from a tributary of Bira Cot River, Indonesia

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/674/1/012050 ◽

2021 ◽

Vol 674 (1) ◽

pp. 012050

Author(s):

F M Nur ◽

A S Batubara ◽

A W Perdana ◽

A Damora ◽

N Fadli ◽

...

Keyword(s):

Fish Species ◽

Ornamental Fish

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Common Cancers Among Kurdish People in the Northwest of Iran: Current Status and Future Prospects

SN Comprehensive Clinical Medicine ◽

10.1007/s42399-018-0034-3 ◽

2018 ◽

Vol 1 (3) ◽

pp. 215-223

Author(s):

Seyedeh Pardis Hosseini ◽

AmirHossein Fereidunian ◽

Parastoo Jamshidi ◽

Mehdi Jafari ◽

Jamal Ahmadpoor

Keyword(s):

Current Status ◽

Future Prospects ◽

Northwest Of Iran

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Parasitic fauna of Eurasian beavers (Castor fiber) in Sweden (1997–1998)

Acta Veterinaria Scandinavica ◽

10.1186/s13028-021-00588-w ◽

2021 ◽

Vol 63 (1) ◽

Author(s):

Per-Arne Åhlen ◽

Göran Sjöberg ◽

Margareta Stéen

Keyword(s):

Age Groups ◽

Ecological Factors ◽

Parasite Fauna ◽

Castor Fiber ◽

Older Individuals ◽

Parasitic Fauna ◽

Eurasian Beaver ◽

Norwegian Population ◽

Stichorchis Subtriquetrus ◽

One Year

Abstract Background The parasitic fauna of beavers (Castor fiber and C. canadensis) has been well studied in many parts of their respective areas of distribution. In Scandinavia there have, however, been limited investigations conducted on the parasites of beavers in recent times. The present study is the first quantitative survey of parasites on beavers living in Sweden and elsewhere in Scandinavia. We investigated the parasitic fauna of the Eurasian beaver (C. fiber) in a North–South gradient in Sweden. The aim of the study was to investigate parasite distribution and prevalence in particular, related to average yearly air temperature and different age groups of beavers. A total of 30 beavers were sampled at eight localities, spanning a 720 km North–South gradient during the springs of 1997 and 1998. Results Five parasite taxa were identified. Four of these were present in all of the examined beavers, Stichorchis subtriquetrus (trematode), Travassosius rufus (nematode), Platypsyllus castoris (coleopteran), and Schizocarpus spp. (arachnid). A higher number of new infections of S. subtriquetrus, and more adults of T. rufus, were seen in beavers in southern Sweden where temperatures are higher. One-year old beavers had a higher infestation of S. subtriquetrus, but not of T. rufus, than older individuals. Conclusions The parasite fauna of Swedish beavers mirrored the impoverished parasite fauna of the original Norwegian population, and the high prevalence of parasites could be due to low major histocompatibility complex (MHC) polymorphism. Young beavers had a higher load of trematodes, probably depending on behavioural and ecological factors. Warmer temperatures in southern localities likely contributed to increased endoparasite loads.

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Ichthyological ethnoknowledge of the “piabeiros” from the Amazon region, Brazil

Journal of Ethnobiology and Ethnomedicine ◽

10.1186/s13002-021-00468-7 ◽

2021 ◽

Vol 17 (1) ◽

Author(s):

Daniel da Silva Ladislau ◽

Maiko Willas Soares Ribeiro ◽

Philip Dalbert da Silva Castro ◽

Jackson Pantoja-Lima ◽

Paulo Henrique Rocha Aride ◽

...

Keyword(s):

Fish Species ◽

Local Ecological Knowledge ◽

Middle Part ◽

Ornamental Fish ◽

Ecological Knowledge ◽

Structured Interviews ◽

Economic Activities ◽

Negro River ◽

Artisanal Fishers ◽

Ecological Aspects

Abstract Background The capture of ornamental fish is one of the main economic activities of riverine families in the Amazon. However, studies regarding the local ecological knowledge of workers in this activity are still incipient. In view of this, we have studied and explored the local ecological knowledge of artisanal fishers who specialize in the capture of fish for the aquarium trade in the middle part of the Negro River basin and investigated issues related to the ecological aspects of the fish species that are targeted by this trade in the region. Methods Therefore, we conducted semi-structured interviews and applied questionnaires to artisanal fishers of ornamental fish (N = 89), from the municipality of Barcelos, from January to April 2016. Results In total, 41 popular names were cited, which correspond to four ethnocategories and 10 families. The main species were Paracheirodon axelrodi (12.5%), Hemigrammus bleheri (8.3%), Ancistrus dolichopterus (6.4%), Symphysodon discus (5.3%), and Potamotrygon motoro (3.8%). According to the fishers, the species of fish known in the region as “piabas” have a preference for living in clusters (28.9%) and carry out migratory movements (26.1%). The diet of local fish species reported by fisheries is diverse, though mainly based on periphyton (42.2%), and the reproductive cycle directly influenced by the period of flooding of rivers in the region (37.6%) Conclusion Our study revealed that the fishers possess information on the ecological aspects of local ornamental fish species, many of which are consistent with scientific literature. The information presented may assist in the decision-making process for the management of local fishery resources and contribute to the resumption of growth and sustainability in the capture of ornamental fish.

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