Stomach Contents of New Zealand Inland Shags

1951 ◽  
Vol 2 (2) ◽  
pp. 245 ◽  
Author(s):  
P Dickinson

Twenty-nine stomachs of the large black shag (Phalacrocorax carbo (Linn.)) and 61 of the white-throated or little pied shag (P. brevirostris (Gould)) from the Rotorua-Taupo area were examined. Techniques used to determine the state of digestion and the identification of otoliths are discussed. Stomach content analyses showed that the food of lake-feeding shags in July consisted almost entirely of fish and freshwater crayfish. Bullies (Gobiomorphus sp.) were the most important food fish. Salmonid fish were found in one stomach (P. carbo).

1979 ◽  
Vol 57 (7) ◽  
pp. 1502-1503 ◽  
Author(s):  
John D. Neilson ◽  
David J. Gillis

Stomach content analyses on 28 Atlantic salmon captured at Port Burwell, Northwest Territories, in late August, 1977, indicate that invertebrate prey items were the most important by volume. Parathemisto libellula dominated the invertebrate prey group, and Ammodytes sp. was the most important fish in the diet of the salmon analyzed. A range extension for Notoscopelus elongtus kroeyeri was recorded.


2021 ◽  
Vol 50 (4) ◽  
pp. 907-918
Author(s):  
Sabuj Kanti Mazumder ◽  
Mrityunjoy Kunda ◽  
Mohammed Mahbub Iqbal ◽  
Lipi Rani Basak ◽  
Simon Kumar Das

The Asian catfish Mystus bleekeri is a popular food fish along with favored as an ornamental fish in Bangladesh. Till now detailed report on stomach contents, trophic level, length-weight relationship and condition factor of this fish species in the agro-climatic context of Bangladesh is lacking. Hence, the aims of this study were to describe the stomach content, trophic level, length-weight relationship (LWR) and condition factors of Mystus bleekeri collected from Dekhar Haor, Sylhet, Bangladesh from July 2017 to June 2018. A total of 600 specimens ranging from 6.9-24.6 cm total length (TL) and 5.7-72.4 g body weight (BW) was analyzed in this study. Stomach content analysis showed that the fish fed mostly on Mollusca with a frequency of occurrence (fo: 25.36%) and worms (fo: 21.68%), followed by plant matters (fo: 3.32%), Cladocerana (fo: 1.18%), Copepoda (fo: 0.95%), and Teleostei (fo: 0.36%). The estimated mean trophic level (TROPH) ranged from 2.35±0.13 in December to 3.02±0.23 in August, indicating that they are opportunistic feeder. The LWR analysis showed negative allometric growth (b<3) throughout the year. The values of the exponent b in the LWR (W=aLb) vary between 1.474 and 2.490.The mean K value was significantly higher in October indicating the heavier weight and better condition of the fish (P<0.05). The data obtained from this study would be useful to introduce sustainable management of Mystus bleekeri not only in Dekhar Haor but also in other inland waters of Bangladesh.


1992 ◽  
Vol 43 (6) ◽  
pp. 1451 ◽  
Author(s):  
JH Choat ◽  
KD Clements

Diets of a number of temperate-water reef fishes considered to be herbivores were examined by stomach content analysis. Two species of the genus Odax (family Odacidae), O. pullus and O. acroptilus, were investigated. Stomach contents of samples of O. pullus from two times and two localities on the New Zealand coast were dominated by fucoid and laminarian algae. There was evidence of selection of reproductive structures of fucoid algae as an important food source. O. acroptilus collected from the central NSW coast of Australia proved to be a carnivore on small benthic invertebrates. In addition, the stomach contents of a taxon unique to Southern Hemisphere waters, Aplodactylus arctidens (family Aplodactylidae), and of one member of a widespread taxon, Girella tricuspidata (family Girellidae), were examined as a comparison with Odax. Collections of each species were made in northern New Zealand. A. arctidens and G. tricuspidata were facultative herbivores with diets dominated by under storey and epiphytic red algae. These results emphasize the unusual feeding patterns of herbivorous odacids and their importance in the development of general models of piscine herbivory.


1979 ◽  
Vol 57 (10) ◽  
pp. 2028-2032 ◽  
Author(s):  
Jean-Marie Bergeron ◽  
Jacques Juillet

Stomach content analyses performed on 272 meadow voles (Microtus pennsylvanicus) revealed that the animal feeds on 35 of the 45 species of plant present in its habitat. Timothy is the most abundant and the most common plant in the vole's diet. The abundance of the plants sampled in the habitat is positively correlated with the abundance of the plants found in the stomach contents. However, some species, like meadow grass (Poa spp.), aredefinitely preferred by the voles since they appear more frequently in the stomach contents than in the habitat. Some feeding habits are also sex dependent.[Translated by the journal]


Author(s):  
Myra J. Tait ◽  
Kiera L. Ladner

AbstractIn Canada, Treaty 1 First Nations brought a claim against the Crown for land debt owed to them since 1871. In 2004, Crown land in Winnipeg became available that, according to the terms of the settlement, should have been offered for purchase to Treaty 1 Nations. Similarly, in New Zealand, the Waikato-Tainui claim arose from historical Crown breaches of the 1840 Treaty of Waitangi. In 1995, a settlement was reached to address the unjust Crown confiscation of Tainui lands. Despite being intended to facilitate the return of traditional territory, compensate for Crown breaches of historic treaties, and indirectly provide opportunity for economic development, in both cases, settlement was met with legal and political challenges. Using a comparative legal analysis, this paper examines how the state continues to use its law-making power to undermine socio-economic development of Indigenous communities in Canada and New Zealand, thereby thwarting opportunity for Indigenous self-determination.


1999 ◽  
Vol 47 (1) ◽  
pp. 75 ◽  
Author(s):  
R. G. Lentle ◽  
K. J. Stafford ◽  
M. A. Potter ◽  
B. P. Springett ◽  
S. Haslett

The particle size distribution of stomach contents from 25 tammar wallabies (Macropus eugenii Desmarest) shot in the Okataina State Forest and adjoining farmland near Rotorua, New Zealand, were determined. There was a greater percentage of finer, and a smaller percentage of larger, particles than reported in the stomach contents of larger macropods. The chewing and biting activities of four free-ranging tammars fitted with radio-microphone collars were monitored. Chewing rates (chews per minute) were similar to those of other small herbivorous vertebrates. There were significantly lower rates of chewing and higher chew-to- bite ratios when browsing than when grazing. Observations of browsing by three captive tammars showed inefficient handling by mutually opposed palms and digitopalmar grip, resulting in low rates of ingestion. We suggest that tammars lower the time necessary for fermentation of food by reducing the size of food particles, and that their choice between graze and browse is influenced by food handling and chewing investment.


2009 ◽  
Vol 5 (1) ◽  
Author(s):  
Evert Lindquist

With the adoption of the State Sector Act in 1988, the New Zealand public sector revolution was in full motion. The Act was one of many initiatives that provided a new framework for government and managing public services (Boston et al., 1996; Scott, 2001). New Zealand rapidly became the poster child for what became known as the New Public Management, and an archetype scrutinised around the world. The audacity and intellectual coherence of the New Zealand model became a standard against which the progress of other governments was judged. These reforms were part of  a larger social and economic transformation which led to dislocation and democratic reform. In the crucible of introducing and implementing these reforms, and in the inevitable re-adjustment phases, New Zealand gained a reputation for continuous reflection on its progress by its political leaders, government officials and a small band of impressive academics.


2021 ◽  
Author(s):  
◽  
Ailish Wallace-Buckland

<p>In January 1932, the Sydney-based lifestyle magazine Health and Physical Culture published an article titled ‘The Menace of Effeminacy’. This article, written by Carl Hertzig, and read by magazine-subscribers across the Tasman, documented anxieties around the state of men and masculinity following the upheaval of the Great War. Touching on topics such as gender, psychology, eugenics, and sexuality this article and its concerns represent those that this thesis explores in order to understand what the ‘fear of effeminacy’ actually meant for New Zealanders during the interwar years (c.1918-1939). This thesis documents and analyses contemporary discussions of male sexuality and masculinity through a series of sources in order to establish the ways in which these concepts were understood in interwar New Zealand. Firstly, it examines some of the key pieces of legislation and reports that demonstrated official approaches, and ways of thinking, towards mental defectives, sexual offenders, and those with war neuroses. It then explores medical journals, and the dissertations of medical students; and finally, it analyses parts of popular print culture in Aotearoa/New Zealand, such as magazines and newspapers, in order to investigate and piece together the landscape in which said anxieties around effeminacy, masculinity, mental stability, and other deviations from the societally prescribed norm met. This thesis approaches these primary sources in such a way that acknowledges the evolutionary framework of understanding that was pervasive in medical circles during this era.  By thus examining the connections between constructions of the male body, homosexuality and effeminacy, late nineteenth to early twentieth century ideas around eugenics, and psychology and psychiatry, this work further uncovers the state of masculinity and male sexuality in New Zealand during the interwar period. This thesis argues that the ‘threat’ to masculinity perceived in a variety of venues was a mixture of anxieties around physical and mental wounds inflicted by the Great War; population concerns exacerbated by the exposure of the health-standards of troops, and worries of how to recover and reconstruct a virile society following four years of strife; concerns at the apparent loosening of sexual mores, and the changing manifestations of both masculinity and femininity; and ever increasing interest in the psychology of self, sexuality, and society. It adds to existing work on post-World War One masculinity by centring New Zealand discussions and understandings in a way that contributes to the broader literature on New Zealand twentieth-century masculinity, psychology and psychiatry, eugenics, and male sexuality.</p>


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