The role of spatial units in modelling freshwater fish distributions: Comparing a subcatchment and river network approach using MaxEnt

2020 ◽  
Vol 418 ◽  
pp. 108937 ◽  
Author(s):  
Heiko Schmidt ◽  
Johannes Radinger ◽  
Daniel Teschlade ◽  
Stefan Stoll
2003 ◽  
Vol 60 (1) ◽  
pp. 17-32 ◽  
Author(s):  
David G Argent ◽  
Joseph A Bishop ◽  
Jay R Stauffer ◽  
Robert F Carline ◽  
Wayne L Myers

2021 ◽  
Vol 14 (1) ◽  
pp. 101-114
Author(s):  
Jacinta Tangil ◽  
◽  
Asmiaty Amat

This study discusses the practice of the bombon system which is a tradition of the Kadazandusun community. The bombon system is a method of conservation of freshwater fish that has been practiced by the Kadazandusun since the time of their ancestors. Through this practice, the Kadazandusun community can preserve their environment, while at the same time ensuring a continuous source of fish. The bombon tradition is based on the traditional beliefs and customary laws of the Kadazandusun people. The bombon system shows the local wisdom of the Kadazandusun community towards the environment and in human relations. The problem around which this study is centred relates to the structural functionalism of the bombon system in the life of the Kadazandusun community. The objective of this study is to look at the function and role of the practice of the bombon system in the life of the Kadazandusun community. This study was conducted via field study, employing interviews, participatory observations and document research. The results show that the bombon system and the Kadazandusun community are functional and support each other’s survival. The practice of the bombon system becomes a functional aesthetic requirement for the community of bombon practitioners, furthering its role as a contributor to the values and culture of the practitioner community. The practice of the bombon system, which highlights many implicit and explicit positive effects in the life of the Kadazandusun community, proves that the practice is functional and continues to be relevant to the life of the community today.


2019 ◽  
Vol 9 (5) ◽  
pp. 2833-2846 ◽  
Author(s):  
Allan Raffard ◽  
Julien Cucherousset ◽  
Jérôme G. Prunier ◽  
Géraldine Loot ◽  
Frédéric Santoul ◽  
...  

2020 ◽  
Vol 102 ◽  
pp. 102692
Author(s):  
João Marcelo S. Abreu ◽  
Ananda Carolina S. Saraiva ◽  
James S. Albert ◽  
Nivaldo M. Piorski

Fishes ◽  
2019 ◽  
Vol 4 (4) ◽  
pp. 49
Author(s):  
Jose W. Valdez ◽  
Kapil Mandrekar

Freshwater fish represent half of all fish species and are the most threatened vertebrate group. Given their considerable passion and knowledge, aquarium hobbyists can play a vital role in their conservation. CARES is made up of many organizations, whose purpose is to encourage aquarium hobbyists to devote tank space to the most endangered and overlooked freshwater fish to ensure their survival. We found the CARES priority list contains nearly six hundred species from twenty families and two dozen extinct-in-the-wild species. The major families were typically those with the largest hobbyist affiliations such as killifish, livebearers, and cichlids, the latter containing half of CARES species. CARES included every IUCN threatened species of Pseudomugilidae and Valenciidae, but only one percent of threatened Characidae, Cobitidae, and Gobiidae species. No Loricariidae in CARES were in the IUCN red list as they have not been scientifically described. Tanzania and Mexico contained the largest amount of species, with the latter containing the most endemics. Many species were classified differently than the IUCN, including a third of extinct-in-the-wild species classified as least concern by the IUCN. This vast disconnect exemplifies the importance of future collaboration and information exchange required between hobbyists, the scientific community, and conservation organizations.


1994 ◽  
Vol 45 (5) ◽  
pp. 905 ◽  
Author(s):  
PC Gehrke ◽  
JH Harris

Potential pathways for interaction between fish and cyanobacteria include fish grazing directly on cyanobacteria, fish preying on grazers of cyanobacteria, fish supplying nutrients through excretion, fish providing nutrients by resuspending sediments, and fish altering the availability of nutrients and light by damaging macrophytes. The dominant interactions in Australia are likely to be through pathways that increase the availability of nutrients at the bottom of the food web. Carp probably contribute to these pathways more than do other species by excreting nutrients, resuspending sediments and damaging macrophytes. Further research, on both alien and native fish species, is needed to quantify these processes. Grazing of cyanobacteria by fish is probably trivial because freshwater fish in Australia lack mechanisms to process cyanobacterial cells effectively. Trophic interactions between planktivorous fish, zooplankton and cyanobacteria require closer study to assess the potential for preventing cyanobacterial blooms by manipulating natural predator communities in Australia. However, the need to protect and strengthen native fish stocks precludes removal of native fish to reduce predation pressure on zooplankton communities. Alternative solutions that combine control of nutrients entering waterways and removal of carp have a higher likelihood of success.


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