Mitochondrial DNA analyses of the saltwater crocodile (Crocodylus porosus) from the Northern Territory of Australia

2012 ◽  
Vol 60 (1) ◽  
pp. 18 ◽  
Author(s):  
Naomi L. Luck ◽  
Kristen C. Thomas ◽  
Victoria E. Morin-Adeline ◽  
Sophie Barwick ◽  
Amanda Y. Chong ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Control Region ◽  
Unknown Origin ◽  
Mitochondrial Control Region ◽  
River Basins ◽  
Northern Territory ◽  
Phylogeographic Pattern ◽  
Control Region Sequences ◽  
Saltwater Crocodile ◽  
Crocodylus Porosus

The saltwater crocodile is distributed throughout south-east Asia and Australia. In Australia, it is most abundant in the Northern Territory and Queensland, where it is sustainably farmed for its skins and meat. The aim of this study was to elucidate the relationships and genetic structure among saltwater crocodiles from the Northern Territory of Australia using mitochondrial control region sequences from 61 individuals, representing nine river basins and six of unknown origin, as well as published sequences from other regions. Eight mitochondrial control region haplotypes were identified among both published and novel sequences. Three of the haplotypes appear to be restricted to specimens from northern Australia, with a single haplotype being the most widely dispersed across all river basins. Although Analysis of Molecular Variance provides some support for differentiation among river basins, the frequency of shared haplotypes among these geographical units and median-joining network analysis do not support a clear genetic structure or phylogeographic pattern for saltwater crocodiles in the Northern Territory. The results of this study will assist in furthering our understanding of the genetic diversity of wild saltwater crocodile populations used for ranching in the Northern Territory, as well as providing a framework for assessing the origin of unknown specimens in the future.

Molecular population phylogeny of the hazel grouseBonasa bonasiain East Asia inferred from mitochondrial control-region sequences

2002 ◽  
Vol 8 (1) ◽  
pp. 251-259 ◽  
Author(s):  
Yoshiyuki Baba ◽  
Yuzo Fujimaki ◽  
Siegfried Klaus ◽  
Olga Butorina ◽  
Serguei Drovetskii ◽  
...  
Keyword(s):  
East Asia ◽  
Control Region ◽  
Mitochondrial Control Region ◽  
Control Region Sequences

Problem crocodiles, Crocodylus porosus, at Nhulunbuy, Northern Territory: an assessment of relocation as a mangaement strategy

1993 ◽  
Vol 20 (1) ◽  
pp. 127 ◽  
Author(s):  
B Walsh ◽  
PJ Whitehead
Keyword(s):  
Carrying Capacity ◽  
Northern Territory ◽  
Effective Strategy ◽  
Wet Season ◽  
Rates Of Return ◽  
Saltwater Crocodile ◽  
Crocodylus Porosus ◽  
Remote Sites ◽  
Total Capture ◽  
Capture Rates

Since 1986 the Conservation Commission of the Northern Territory has operated a programme to remove 'problem' saltwater crocodiles from waters in and adjoining the township of Nhulunbuy. Over a period of five years, 52 different saltwater crocodiles (44 male) were captured. Most (48) were released at remote sites designated by the traditional Aboriginal owners of the surrounding lands. Release distances from the township varied from 17 to 282 km (by coastline). Many crocodiles (47.9%), including those released at the most distant sites, returned to, and were subsequently recaptured at, the township. Total capture rates (initial captures and recaptures pooled) varied seasonally, with fewer crocodiles being caught in the cooler dry season. During the wet season capture rates remained high, but relatively fewer 'new' crocodiles were caught. Probability of recapture could not be related to distance and direction of release from the township, nor size and sex of the released crocodile. Frequency of capture of individual crocodiles (1-8 times) was also unrelated to these variables. The high rates of return indicate that relocation is unlikely to be an effective strategy for managing humancrocodile interactions, at least in areas where potential release sites already support saltwater crocodile populations near carrying capacity.

Phylogenetic analysis of chinese rhesus macaques (Macaca mulatta) based on mitochondrial control region sequences

2011 ◽  
Vol 73 (9) ◽  
pp. 883-895 ◽  
Author(s):  
Di Yan Li ◽  
Huai Liang Xu ◽  
David Glenn Smith ◽  
An Chun Cheng ◽  
Jessica Satkoski Trask ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Control Region ◽  
Macaca Mulatta ◽  
Rhesus Macaques ◽  
Mitochondrial Control Region ◽  
Control Region Sequences ◽  
Chinese Rhesus Macaques

The mitochondrial control region reveals genetic structure in southern kingcroaker populations on the coast of the Southwestern Atlantic

2017 ◽  
Vol 191 ◽  
pp. 87-94 ◽  
Author(s):  
Adrianne dos Santos Freitas ◽  
Raimundo da Silva ◽  
Iracilda Sampaio ◽  
Horacio Schneider
Keyword(s):  
Genetic Structure ◽  
Control Region ◽  
Mitochondrial Control Region ◽  
Southwestern Atlantic
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