scholarly journals Taxonomic Status of Four Rare Alien Fish Species of the Kapchagay Reservoir (Balkhash Basin, Central Asia)

2021 ◽  
Vol 61 (3) ◽  
pp. 339-347
Author(s):  
N. Sh. Mamilov ◽  
T. G. Konysbaev ◽  
I. N. Magda ◽  
E. D. Vasil’eva

Abstract— Based on the morphological features, four rare alien species in the Kapchagai reservoir were identified: Coregonus peled, Parasalmo mykiss, Megalobrama mantschuricus, and Oreochromis niloticus. The latter two species were recorded for the ichthyofauna of Kazakhstan for the first time. Self-reproducing P. mykiss populations have been known in the Balkhash Basin since the late 1990s, whereas the introduction of C. peled into the Ili basin in 1968−1969 and 1971 did not lead to the naturalization of the species. The reasons for the great diversity of invasive fish species in the Kapchagai reservoir are overviewed.

2021 ◽  
Vol 39 (10) ◽  
Author(s):  
Asmida Ahmad ◽  
Nur Fazini Asro Bt. Ramzi Sulaiman ◽  
Nadia Bt. Abu Hasan

River pollution has been a major problem in Malaysia and significantly affects the environment. One of the contributing issues would be the spread of invasive alien fish species that has given negative impacts on the environment and ecological disaster, the human health, harming the native animals and plants, as well the economy. Based on the National Committee on Invasive Alien Species Report in 2018, that 46 invasive alien species from a total of 130 species in the established main invasive alien species lists in Malaysia.  The alien fishes have been known to make their presence in our dams, lakes and rivers but not much attention has been paid to their existence. Based on these facts, it is proven that the issue poses a significant risk hence an urgent attention is required in managing this pollution through proactive legal measures to enforce strictly the existing law so as to prevent the halt of the spread of invasive species. A legal doctrinal and non-doctrinal modes of research are used to examine and review on the existing laws and/or policy governing this issue. This research will help to provide reference and strategic planning via legal approach for better controlling the invasion in our Malaysian waters.  


2011 ◽  
Vol 12 (1) ◽  
pp. 247 ◽  
Author(s):  
C. TURAN ◽  
D. YAGLIOGLU

The non-indigenous tetraodontid of Indo-Pacific origin Tylerius spinosissimus is recorded for the first time in Turkish waters and for the third time in the Mediterranean Sea. This record increases to 53 the number of Indo-Pacific alien fish species present along the coasts of Turkey.


Author(s):  
Alexandru Iftime ◽  
Oana Iftime

The paper presents a review of literature data, supplemented with original observations, on the presence, establishment, distribution and invasive status of alien fish, amphibian and reptile species in Romania. Consistent criteria were followed in defining alien species records, establishment and invasive status. From the 48 alien fish species, 1 fish hybrid, 1 amphibian and 18 reptile species recorded, only 16 fishes and 3 reptiles can be regarded as established. Of these we consider the criteria for invasive status as being probably fulfilled by one fish species (Perccottus glenii), and less likely by six more fish species. The presence and the alien status of the one amphibian are debatable. No reptile species can be considered invasive at present.


Author(s):  
Md. Hashmi Sakib ◽  
Arif Reza ◽  
Md. Safiul Islam Afrad ◽  
Sang-Go Lee

Adoption of alien fish species for aquaculture has become a common practice in Bangladesh. In this study, the socio-economic factors responsible for alien species adoption by fish farmers in Bogra District of Bangladesh were investigated. Data on adoption and socio-economic factors were collected from randomly selected 110 fish farmers. A multiple regression model was used to determine the factors influencing the adoption of alien fish species. The majority of the respondents (62.7%) belong to the moderate adoption category. The results showed that socio-economic factors such as commercialization, social participation, innovativeness, knowledge significantly affected fish farmers decision to adopt alien species. A stepwise regression analysis reveals that farmers knowledge on aquaculture is the deterministic factor regarding adoption. The trend of adopting alien fish species is not a concern limited to the study area, rather it reflects the general scenario of the aquaculture industry in Bangladesh. Therefore, socio-economic studies on alien fish species adoption could be helpful in forecasting future trends and formulating management strategies.


2016 ◽  
Vol 7 (4) ◽  
pp. 324-332 ◽  
Author(s):  
I. V. Zuev ◽  
A. A. Vyshegorodtsev ◽  
S. M. Chuprov ◽  
D. V. Zlotnik

2012 ◽  
Vol 60 (1) ◽  
pp. 26 ◽  
Author(s):  
Michael W. Klunzinger ◽  
Stephen J. Beatty ◽  
David L. Morgan ◽  
Gordon J. Thomson ◽  
Alan J. Lymbery

Glochidia (parasitic larvae) of freshwater mussels generally require a fish as a host. Westralunio carteri Iredale, 1934 (Bivalvia : Hyriidae), the only freshwater mussel found in south-western Australia, was listed as Vulnerable, but recently changed to Least Concern (International Union for the Conservation of Nature). Glochidia were found on four alien and seven native species of fish from 18 sites in the South West Coast Drainage Division. On alien fishes, prevalence of glochidia ranged from 0.0 to 41.0% and mean intensity (number of glochidia per infested fish) from 1.0 to 6.0, while on native fishes prevalence was 9.2–90.5% and intensity was 2.3–7.1. Glochidia infestation was greatest on benthic fishes, which may be a consequence of greater encounter rates, but other factors, such as host size, probably also influence glochidia prevalence and intensity. Glochidia were generally restricted to fins of infested fish, and were rarely on gills or the body surface. In the laboratory, four native and one alien fish species were found to be competent hosts for their ability to produce juvenile W. carteri, but two alien fish species were not. The inability of some alien fishes to produce juvenile W. carteri could potentially reduce recruitment success in areas dominated by alien fishes.


2010 ◽  
Vol 1 (3) ◽  
pp. 181-186 ◽  
Author(s):  
N. Sh. Mamilov ◽  
G. K. Balabieva ◽  
G. S. Koishybaeva

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