Extinct habitat, extant species: lessons learned from conservation recovery actions for the Pedder galaxias (Galaxias pedderensis) in south-west Tasmania, Australia

2013 ◽  
Vol 64 (9) ◽  
pp. 864 ◽  
Author(s):  
Stuart Chilcott ◽  
Rob Freeman ◽  
Peter E. Davies ◽  
David A. Crook ◽  
Wayne Fulton ◽  
...  
Keyword(s):  
Freshwater Fish ◽  
Major Change ◽  
Lessons Learned ◽  
Hydroelectric Power ◽  
Introduced Fish ◽  
Extant Species ◽  
Conservation Actions ◽  
In The Wild ◽  
Natural Range ◽  
Lake Pedder

The Pedder galaxias (Galaxias pedderensis) from Lake Pedder, Tasmania, Australia, is one of the world’s most threatened freshwater fish. The flooding of Lake Pedder in 1972 for hydroelectric power generation caused a major change to the ecosystem that initiated an irreversible decline in the Pedder galaxias within its natural range. The flooding inundated another headwater catchment and native and introduced fish from this catchment colonised the impoundment. Numbers of the Pedder galaxias declined markedly as the impoundment matured and as colonising fish proliferated. Surveys in the 1980s confirmed the parlous state of the population, highlighting the need for conservation intervention. Several urgent conservation actions were undertaken to save the species from extinction. Translocation was considered the most important recovery action, given the critically low numbers in the wild. The species is now extinct from its natural range and is known from only two translocated populations. The conservation program, and specifically the translocation recovery action, saved the Pedder galaxias from extinction. The conservation management was extremely challenging since rapidly declining fish numbers needed timely and critical decisions to underpin the future of the fish. Recommendations are provided arising from this case study to guide conservation of freshwater fish in similar circumstances.

A Retrospective and a Look Forward: Lessons Learned From Researching Emotions In-the-Wild

2021 ◽  
pp. 1-9
Author(s):  
Benjamin Tag ◽  
Jorge Goncalves ◽  
Sarah Webber ◽  
Peter Koval ◽  
Vassilis Kostakos
Keyword(s):  
Lessons Learned ◽  
In The Wild

scholarly journals Amphibians of northwestern Buenos Aires province, Argentina: checklist, range extensions and comments on conservation

Check List ◽  
2016 ◽  
Vol 12 (6) ◽  
pp. 1998 ◽  
Author(s):  
María G. Agostini ◽  
Pablo E. Saibene ◽  
Ignacio Roesler ◽  
David Bilenca
Keyword(s):  
Buenos Aires ◽  
Agricultural Practices ◽  
Agricultural Landscapes ◽  
Buenos Aires Province ◽  
Annotated List ◽  
Native Grasslands ◽  
Extant Species ◽  
Short Period ◽  
Conservation Actions

Northwestern Buenos Aires province is located within the Pampas region of Argentina. Agricultural practices have extensively modified native grasslands in a relatively short period, leaving no intact pristine areas. Based on data collected between 2006 and 2015 at 153 ponds in agricultural landscapes, we compiled an annotated list of the amphibians of northwestern Buenos Aires province. We report 13 extant species of amphibians, which represent 43% of the known amphibian diversity in Buenos Aires province, and extend the ranges of three species. Three species found only in herpetological collections extend the list to 16 species. Our study is the first long-term survey of amphibians conducted in this part of Argentina and provides valuable information for future conservation actions across agricultural landscapes.

scholarly journals Assessing the Species in the CARES Preservation Program and the Role of Aquarium Hobbyists in Freshwater Fish Conservation

Fishes ◽  
2019 ◽  
Vol 4 (4) ◽  
pp. 49
Author(s):  
Jose W. Valdez ◽  
Kapil Mandrekar
Keyword(s):  
Freshwater Fish ◽  
Wild Species ◽  
Information Exchange ◽  
Iucn Red List ◽  
Vital Role ◽  
Red List ◽  
Priority List ◽  
In The Wild ◽  
Conservation Organizations

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.

scholarly journals Monitoring freshwater fish in Florida lakes using electrofishing: Lessons learned

2011 ◽  
Vol 27 (4) ◽  
pp. 329-342
Author(s):  
Mark V. Hoyer ◽  
Jason P. Bennett ◽  
Daniel E. Canfield
Keyword(s):  
Freshwater Fish ◽  
Lessons Learned ◽  
Florida Lakes

scholarly journals The changing fates of the world's mammals

2011 ◽  
Vol 366 (1578) ◽  
pp. 2598-2610 ◽  
Author(s):  
Michael Hoffmann ◽  
Jerrold L. Belant ◽  
Janice S. Chanson ◽  
Neil A. Cox ◽  
John Lamoreux ◽  
...  
Keyword(s):  
Captive Breeding ◽  
Extinction Risk ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Mammal Species ◽  
International Union ◽  
The Status ◽  
Conservation Actions ◽  
In The Wild

A recent complete assessment of the conservation status of 5487 mammal species demonstrated that at least one-fifth are at risk of extinction in the wild. We retrospectively identified genuine changes in extinction risk for mammals between 1996 and 2008 to calculate changes in the International Union for Conservation of Nature (IUCN) Red List Index (RLI). Species-level trends in the conservation status of mammalian diversity reveal that extinction risk in large-bodied species is increasing, and that the rate of deterioration has been most accelerated in the Indomalayan and Australasian realms. Expanding agriculture and hunting have been the main drivers of increased extinction risk in mammals. Site-based protection and management, legislation, and captive-breeding and reintroduction programmes have led to improvements in 24 species. We contextualize these changes, and explain why both deteriorations and improvements may be under-reported. Although this study highlights where conservation actions are leading to improvements, it fails to account for instances where conservation has prevented further deteriorations in the status of the world's mammals. The continued utility of the RLI is dependent on sustained investment to ensure repeated assessments of mammals over time and to facilitate future calculations of the RLI and measurement against global targets.

scholarly journals POTENSI JENIS-JENIS IKAN AIR TAWAR KONSUMSI MASYARAKAT ALIRAN SUNGAI DIGOEL, KABUPATEN BOVEN DIGOEL, PAPUA, DAN BEBERAPA LANGKAH PENGELOLAANNYA

2010 ◽  
Vol 6 (1) ◽  
pp. 41 ◽  
Author(s):  
Lexy K Rarung ◽  
Silvester B Pratasik
Keyword(s):  
Freshwater Fish ◽  
Fish Population ◽  
Local People ◽  
Native Fish ◽  
Introduced Fish ◽  
Management Options ◽  
Clear Cut ◽  
Management Actions

This study aimed at providing information on freshwater fish living in Digoel River, Boven Digoel Regency, Papua, edible for local people and some management options. Data were collected from observing the fishing activities and Tanah Merah  market, and through personal interviews as well. Results showed that there were about 23 species of native and introduced fish living in the Digoel River. Native fish population is decreasing as a result of forest clear cut, pollution, irrational fishing and predation. Therefore, management actions should be taken.

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