Genetic variation in the greenback flounder Rhombosolea tapirina GÜnther (Teleostei, Pleuronectidae) and the implications for aquaculture

2000 ◽  
Vol 51 (1) ◽  
pp. 23 ◽  
Author(s):  
Tony van den Enden ◽  
Robert W. G. White ◽  
Nicholas G. Elliott
Keyword(s):  
Genetic Variation ◽  
New Zealand ◽  
Genetic Distance ◽  
West Coast ◽  
Gel Electrophoresis ◽  
Effective Population ◽  
Average Heterozygosity ◽  
The West ◽  
Order Of Magnitude ◽  
Population Sizes

Samples of the greenback flounder, Rhombosolea tapirina, were collected from five Tasmanian sites and from one site each off Victoria and New Zealand. Thirty enzyme-coding loci were analysed by gel electrophoresis. Seventeen loci were variable, nine of which were polymorphic in at least four samples. Average heterozygosity across all 30 loci was relatively high at 0.086 ± 0.032. There were significant genetic differences between the Australian and New Zealand samples, with a genetic distance of 0.041, which was an order of magnitude larger than that observed between any Australian samples. Samples from the west coast of Tasmania and from Victoria were genetically isolated from each other and from the remaining four Tasmanian samples; the latter showed little variation among themselves. Reductions in genetic variation (heterozygosity and alleles) were observed in two cultured cohorts when compared with the wild-caught samples, with corresponding low estimates of effective population sizes compared with putative breeding numbers. No genetic variation was detected between normal and malpigmented individuals from the same culture cohort.

Survey of the Genetic Variation Among Eastern Lake Superior Lake Trout (Salvelinus namaycush)

1981 ◽  
Vol 38 (12) ◽  
pp. 1738-1746 ◽  
Author(s):  
Terrence R. Dehring ◽  
Anne F. Brown ◽  
Charles H. Daugherty ◽  
Stevan R. Phelps
Keyword(s):  
Genetic Variation ◽  
Gel Electrophoresis ◽  
Lake Trout ◽  
Lake Superior ◽  
Salvelinus Namaycush ◽  
Starch Gel Electrophoresis ◽  
Average Heterozygosity ◽  
Management Implications ◽  
Salmonid Species ◽  
Starch Gel

Patterns of genetic variation among lake trout (Salvelinus namaycush) of eastern Lake Superior were examined using starch gel electrophoresis. We used 484 individuals sampled from three areas, representing three morphological types (leans, humpers, and siscowets). Of 50 loci examined, 44 were monomorphic in all groups sampled. Genetic variation occurs at six loci AAT-1,2, MDH-3,4, ME-1, and SOD-1. The average heterozygosity found (H = 0.015) is low relative to other salmonid species. A significant amount of heterogeneity exists among the 10 lake trout samples. These differences are due to variation within as well as between morphological types. The significance and management implications of these data are discussed.Key words: genetic variation, lake trout, Salvelinus namaycush, Lake Superior

scholarly journals How to Become a Mushroom: A New Nature Ethnography of Fungi in Aotearoa

2021 ◽  
Author(s):  
◽  
Alice Nicholls
Keyword(s):  
New Zealand ◽  
West Coast ◽  
Nature Writing ◽  
The West ◽  
Multispecies Ethnography ◽  
Ethnographic Fieldwork ◽  
Native Forests ◽  
Transformative Potential ◽  
The Moment

<p>This thesis proposes that the moment of interaction between a person and a fungus is transformative of both subjects. Using new nature writing techniques in tandem with multispecies ethnography, this thesis seeks to present a rich, autoethnographic account of my encounters with fungi in the native forests of the West Coast of Aotearoa. Drawing on five days of ethnographic fieldwork spent at the Fungal Network of New Zealand (FUNNZ) annual Fungal Foray in the township of Moana, I explore the affective, emotional, sensory, intellectual, and corporeal experiences of interacting with fungi. Using new nature writing as an ethnographic medium, I suggest that narratives that pertain to the researcher’s experiences can render new understandings of nonhuman subjects. In doing so, I explore both the transformative potential of multispecies encounters for the researcher and the researched, and the literary potential of multispecies ethnography to illustrate the encounters themselves.</p>

Lagoon subsidence and tsunami on the West Coast of New Zealand

2007 ◽  
Vol 200 (3-4) ◽  
pp. 248-262 ◽  
Author(s):  
S.L. Nichol ◽  
J.R. Goff ◽  
R.J.N. Devoy ◽  
C. Chagué-Goff ◽  
B. Hayward ◽  
...  
Keyword(s):  
New Zealand ◽  
West Coast ◽  
The West

Provenance of titanomagnetite in ironsands on the west coast of the North Island, New Zealand

2017 ◽  
Vol 178 ◽  
pp. 23-34 ◽  
Author(s):  
R.L. Brathwaite ◽  
M.F. Gazley ◽  
A.B. Christie
Keyword(s):  
New Zealand ◽  
West Coast ◽  
The West ◽  
The North

A revision of the genus Podaena Ordish (Insecta: Coleoptera: Hydraenidae)

Zootaxa ◽  
2010 ◽  
Vol 2678 (1) ◽  
pp. 1
Author(s):  
JUAN A. DELGADO ◽  
RICARDO L. PALMA
Keyword(s):  
New Species ◽  
New Zealand ◽  
West Coast ◽  
Male Genitalia ◽  
Barrier Island ◽  
The West ◽  
Separate Species ◽  
Distribution Maps ◽  
Maxillary Palps ◽  
Eleven Species

The New Zealand endemic genus Podaena Ordish, 1984 is revised. Eleven species are recognized of which four are described as new, and the remainder redescribed. The new species are: Podaena aotea from Great Barrier Island, Podaena hauturu from Little Barrier Island, Podaena mariae from the west coast of the South Island, and Podaena moanaiti from Lake Waikaremoana. The most useful characters to separate species are the shape of the maxillary palps and the shape and chaetotaxy of the foretibiae in males; these characters are illustrated for all the species. Unlike most genera of Hydraenidae, male genitalia in Podaena are not diagnostic for all species. The known geographical distribution of some species is expanded, and the complete collecting data for the type series of all the species described by Ordish (1984) are given, together with distribution maps.

Invasion of the New Zealand Coastline by European Sea-Rocket (Cakile maritima) and American Sea-Rocket (Cakile edentula)

2011 ◽  
Vol 4 (2) ◽  
pp. 260-263 ◽  
Author(s):  
Roger D. Cousens ◽  
Jane M. Cousens
Keyword(s):  
New Zealand ◽  
North America ◽  
West Coast ◽  
Congeneric Species ◽  
The West ◽  
The Past ◽  
The North ◽  
Cakile Maritima ◽  
Cakile Edentula ◽  
North And South

AbstractOn the west coast of North America and in Australia, there have been parallel cases of sequential invasion and replacement of the shoreline plant American sea-rocket by European sea-rocket. A similar pattern has also occurred in New Zealand. For 30 to 40 yr, from its first recording in 1921, American sea-rocket spread throughout the eastern coastlines of the North and South Islands of New Zealand. European sea-rocket has so far been collected only on the North Island. From its first collection in 1937, European sea-rocket spread to the northern extremity of the island by 1973, and by 2010, it had reached the southernmost limit. In the region where both species have occurred in the past, American sea-rocket is now rarely found. This appears to be another example of congeneric species displacement.

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