A new record extending the Southerly distribution of the Shark Ray (Rhina ancylostomus), and notes on the behaviour of the specimen in captivity

1992 ◽  
Vol 43 (1) ◽  
pp. 319 ◽  
Author(s):  
I Gordon
Keyword(s):  
New Record ◽  
New South ◽  
New South Wales ◽  
South Wales ◽  
In Captivity ◽  
Live Specimen

A live specimen of Rhina ancylostomus was collected off Forster, New South Wales, Australia (32�10'S, 152�45'E), some 600 km farther south than the species has previously been recorded. The specimen has been maintained live at the Manly Oceanarium, where information has been gained on some basic behavioural attributes of this rare elasmobranch.

Validation of the formation and appearance of annual marks in the otoliths of yellowtail (Trachurus novaezelandiae) and blue mackerel (Scomber australasicus) in New South Wales

1999 ◽  
Vol 50 (5) ◽  
pp. 389 ◽  
Author(s):  
John Stewart ◽  
Douglas J. Ferrell ◽  
Neil L. Andrew
Keyword(s):  
Growth Rate ◽  
Age Estimation ◽  
New South ◽  
New South Wales ◽  
Early Summer ◽  
Age Class ◽  
South Wales ◽  
In Captivity

Yellowtail (Trachurus novaezelandiae) and blue mackerel (Scomber australasicus) were captured off the coast of New South Wales, marked with oxytetracycline, and kept in captivity for 1 year. The fish were periodically sampled to validate the use of their otoliths for age estimation. Opaque marks were formed during the year in the otoliths of yellowtail apparently aged 0 to 7 years and in apparently 1-year-old blue mackerel. These marks were formed in winter for both species, but did not become visible until early summer in some fish. There was an association between the growth rate of the otolith and the detection of opaque marks. Within an age class, fish with the fastest growing otoliths tended to have their most recently formed opaque marks visible earliest. These relationships between growth rate and the probability of correctly assigning an age class have important implications for ageing fish. Extra keyword: ageing

scholarly journals Keraphyton gen. nov., a new Late Devonian fern-like plant from Australia

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e9321 ◽  
Author(s):  
Antoine Champreux ◽  
Brigitte Meyer-Berthaud ◽  
Anne-Laure Decombeix
Keyword(s):  
New Record ◽  
New Genus ◽  
Vascular System ◽  
New South ◽  
New South Wales ◽  
Late Devonian ◽  
South Wales ◽  
Australian Flora ◽  
Early Late

The first plants related to the ferns are represented by several extinct groups that emerged during the Devonian. Among them, the iridopterids are closely allied to the sphenopsids, a group represented today by the genus Equisetum. They have been documented in Middle to early Late Devonian deposits of Laurussia and the Kazakhstan plate. Their Gondwanan record is poor, with occurrences limited to Venezuela and Morocco. Here we describe a new genus from a late Late Devonian locality of New South Wales. It is represented by a single anatomically preserved large stem characterized by a star-shaped vascular system with protoxylem strands located at rib tips, and by a lack of secondary tissues. Within the first fern-like plants, this stem shares the largest number of characters with iridopterid axes but differs by the pattern of its vascular system. Keraphyton mawsoniae gen. et sp. nov. adds a new record of early fern-like plants in eastern Gondwana. It provides new insights into the anatomical diversity within this key group of plants and supports the distinctiveness of the Australian flora in the latest Devonian.

Another alien terrestrial planarian in the United Kingdom: Australopacifica atrata (Steel, 1897) (Platyhelminthes: Tricladida: Continenticola)

Zootaxa ◽  
2019 ◽  
Vol 4604 (3) ◽  
pp. 575 ◽  
Author(s):  
HUGH D. JONES
Keyword(s):  
United Kingdom ◽  
New South ◽  
New South Wales ◽  
Chicken Liver ◽  
Copulatory Apparatus ◽  
The United Kingdom ◽  
South Wales ◽  
Dead Mouse ◽  
In Captivity ◽  
The Uk

Black terrestrial planarians, 5 mm to 3 cm long, have been found in five locations in the United Kingdom, the earliest in 2015. They are identified as Australopacifica atrata (Steel, 1897), a species originally described from New South Wales, Australia. A detailed systematic discussion of original and later descriptions, all of which are of external features only and with no morphological details, is given in support of this identification. Sectioned specimens show partly mature ovaries and ventral testes though none show any development of the copulatory apparatus. They reproduce freely by fission. They appear to be generalist scavengers, having been found feeding on a dead slow worm, a dead mouse, an earthworm and also on rotten fruit. In captivity they feed on chicken liver, squashed slugs and earthworms. It is assumed that they have been inadvertently introduced to the UK and distributed through horticultural activity. 

Sign in / Sign up

Export Citation Format

Share Document