Annual secondary production of two estuarine mysid species (Mysidacea: Mysidae) inhabiting an intermittently closed estuary, south-eastern New Zealand

2011 ◽  
Vol 62 (7) ◽  
pp. 823 ◽  
Author(s):  
Adrian W. T. Lill ◽  
Gerard. P. Closs ◽  
Candida Savage ◽  
Marc Schallenberg
Keyword(s):  
New Zealand ◽  
Secondary Production ◽  
Annual Production ◽  
Eastern Coast ◽  
Turnover Rates ◽  
The South ◽  
South Eastern ◽  
Breeding Populations ◽  
Key Species ◽  
Food Conditions

Estimates of secondary production are essential to understanding how communities function. Estimates of secondary production for key species such as mysids are scarce, especially in estuarine environments. There are no estimates for mysid production in intermittently closed estuaries in the world, and no estimates for endemic New Zealand mysids. The current study presents length–mass models for two mysid species (Tenagomysis chiltoni Tattersall, 1923 and T. novae-zealandiae Thomson, 1900) from the south-eastern coast of the South Island, New Zealand. Kaikorai Lagoon, a small intermittently closed estuary, supported a large average annual biomass of T. novae-zealandiae (861.77 mg m–2) and T. chiltoni (971.90 mg m–2). The Hynes average-cohort method was used with length–mass models to estimate the annual production of breeding populations of T. chiltoni and T. novae-zealandiae collected over a year in parts of the Kaikorai Lagoon. Compared with similar temperate ecosystems worldwide, the studied ecosystem indicated high annual production (11 328.8 mg m–2 year–1 and 6585.2 mg m–2 year–1) and turnover rates (P : B) (13.16 and 6.78) for T. novae-zealandiae and T. chiltoni, respectively. High annual secondary production may be due to relatively stable hydrological and food conditions found in intermittently closed estuaries, leading to dense stable populations that are maintained through much of the year.

Corrigendum to: Annual secondary production of two estuarine mysid species (Mysidacea : Mysidae) inhabiting an intermittently closed estuary, south-eastern New Zealand

2012 ◽  
Vol 63 (4) ◽  
pp. 385 ◽  
Author(s):  
Adrian W. T. Lill ◽  
Gerard P. Closs ◽  
Candida Savage ◽  
Marc Schallenberg
Keyword(s):  
New Zealand ◽  
Secondary Production ◽  
Annual Production ◽  
Eastern Coast ◽  
Turnover Rates ◽  
The South ◽  
South Eastern ◽  
Breeding Populations ◽  
Key Species ◽  
Food Conditions

Estimates of secondary production are essential to understanding how communities function. Estimates of secondary production for key species such as mysids are scarce, especially in estuarine environments. There are no estimates for mysid production in intermittently closed estuaries in the world, and no estimates for endemic New Zealand mysids. The current study presents length?mass models for two mysid species (Tenagomysis chiltoni Tattersall, 1923 and T. novae-zealandiae Thomson, 1900) from the south-eastern coast of the South Island, New Zealand. Kaikorai Lagoon, a small intermittently closed estuary, supported a large average annual biomass of T. novae-zealandiae (861.77 mg m?2) and T. chiltoni (971.90 mg m?2). The Hynes average-cohort method was used with length?mass models to estimate the annual production of breeding populations of T. chiltoni and T. novae-zealandiae collected over a year in parts of the Kaikorai Lagoon. Compared with similar temperate ecosystems worldwide, the studied ecosystem indicated high annual production (11 328.8 mg m?2 year?1 and 6585.2 mg m?2 year?1) and turnover rates (P : B) (13.16 and 6.78) for T. novae-zealandiae and T. chiltoni, respectively. High annual secondary production may be due to relatively stable hydrological and food conditions found in intermittently closed estuaries, leading to dense stable populations that are maintained through much of the year.

Detection of hydroxamate siderophores in coastal and Sub-Antarctic waters off the South Eastern Coast of New Zealand

2011 ◽  
Vol 126 (1-4) ◽  
pp. 97-107 ◽  
Author(s):  
Imelda Velasquez ◽  
Brook L. Nunn ◽  
Enitan Ibisanmi ◽  
David R. Goodlett ◽  
Keith A. Hunter ◽  
...  
Keyword(s):  
New Zealand ◽  
Eastern Coast ◽  
The South ◽  
South Eastern ◽  
Hydroxamate Siderophores ◽  
Antarctic Waters

Mauritius

2020 ◽  
Author(s):  
Marius Schneider ◽  
Vanessa Ferguson
Keyword(s):  
Indian Ocean ◽  
Eastern Coast ◽  
Official Language ◽  
The South ◽  
South Eastern ◽  
The Indian Ocean ◽  
The Republic ◽  
Local Languages

Situated off the south-eastern coast of Africa in the Indian Ocean, the Republic of Mauritius is an island nation of 2,040 square kilometres (km) with a population of 1.26 million. English is generally accepted as the official language as it is used by the administration and the courts. French is also widely spoken among the population, and most inhabitants are bilingual. Local languages include Créole and Bhojpuri. The working week on the island is from Monday to Friday and the Mauritian rupee (MUR) is the currency used.

Southern right whales in the South-western Atlantic Ocean: proposed criteria to identify suitable areas of use in poorly known reproductive grounds

2019 ◽  
Vol 99 (5) ◽  
pp. 1231-1236
Author(s):  
Giovanna Corrêa e Figueiredo ◽  
Samara Cazzoli y Goya ◽  
Marcos César de Oliveira Santos
Keyword(s):  
Atlantic Ocean ◽  
Eastern Coast ◽  
The South ◽  
Sandy Bottom ◽  
Western Atlantic ◽  
South Eastern ◽  
Western Atlantic Ocean ◽  
Right Whale ◽  
Ranking Criteria ◽  
Right Whales

AbstractUrbanization and intense vessel traffic in coastal areas are obstacles for right whales when selecting breeding and calving grounds. Human activities might be the main cause for the recently observed drop in right whale sightings along the south-eastern coast of Brazil. Information concerning the biology and the activities that can potentially affect the presence of individuals along the coast are essential for management purposes, as well as for the recovery of the species stocks after a period of whaling pressure. This study correlated the occurrence of right whales in the northern limit of the breeding ground in the South-western Atlantic Ocean with local geomorphology, degree of urbanization and oceanographic features to better identify suitable areas for use by these whales. The study area was divided into 14 sub-areas based on local coastal geomorphology and discharge of large rivers. The following five ranking criteria were applied to each sub-area: presence of whaling stations and whaling activity in the past; presence and activity of ports; protection from swell, coastal slope and composition of the bottom substrate. The sub-areas that offered conditions conducive to the presence of right whales received higher scores. The proposed criteria were validated by overlapping the ranking scores with the records of right whales sighted in each sub-area. In south-eastern Brazil, protected areas with sandy bottom and gentle slope were associated with more sightings of female-calf pairs. The criteria can be used as a primary diagnostic indicating suitable sub-areas for right whales in poorly known breeding grounds.

Saltmarsh and seagrass beds on the south-eastern coast of Bangladesh: vegetation characteristics and adjacent fisheries diversity

2016 ◽  
Vol 26 (4) ◽  
pp. 313-322 ◽  
Author(s):  
Md. Masum Billah ◽  
Hossain Zamal ◽  
Abu Hena Mustafa Kamal ◽  
A. T. M. Rafiqul Hoque ◽  
Md. Mosaddequr Rahman ◽  
...  
Keyword(s):  
Eastern Coast ◽  
Seagrass Beds ◽  
The South ◽  
South Eastern ◽  
Vegetation Characteristics ◽  
Fisheries Diversity

Brachyuran crabs (Decapoda, Brachyura) associated with the green sponge Amphimedon viridis (Demospongiae) from Itaguá Beach, south-eastern coast of Brazil

Crustaceana ◽  
2012 ◽  
Vol 85 (4-5) ◽  
pp. 497-512 ◽  
Author(s):  
Douglas F. R. Alves ◽  
Marcelo C. R. Carvalho ◽  
Samara De P. Barros-Alves ◽  
Valter J. Cobo
Keyword(s):  
Eastern Coast ◽  
Biological Parameters ◽  
The South ◽  
Volume Number ◽  
South Eastern ◽  
Species Recruitment ◽  
Brachyuran Crabs ◽  
Number Of Individuals ◽  
Rocky Bottoms ◽  
Over Time

This study provides information on the community structure of brachyuran crabs associated with the green sponge, Amphimedon viridis Duchassaing & Michelotti, 1864, from a beach on the south-eastern coast of Brazil. Monthly collections from May 2002 through August 2003 were carried out on the rocky bottoms off Itaguá Beach (23°27′07″S 45°02′49″W). Crabs on the green sponge banks were hand-caught during snorkelling sessions, and 638 crabs belonging to 31 species, 19 genera, and 10 families were obtained. Biological parameters, including sponge volume, number of individuals, density, richness, diversity, evenness, and dominance changed considerably over time. Species recruitment and foraging habit are some of the factors that drive the richness, dominance, and diversity patterns of this community. The green sponge banks are important sites for recruitment, refuge, and feeding of many species of brachyurans. Therefore, they are also important for the conservation of this group on the south-eastern coast of Brazil.

scholarly journals The Sabaki languages of Comoros

2021 ◽  
Author(s):  
maurizio serva ◽  
michele pasquini
Keyword(s):  
Eastern Coast ◽  
Phylogenetic Position ◽  
The South ◽  
Bantu Languages ◽  
Eastern Group ◽  
South Eastern ◽  
Western Group

In this article we try to determine the internal and external cladistics of the four Bantu varieties in the Comoros archipelago. With internal cladistics we mean their mutual classification. Conventionally they are divided into two groups: the Eastern group composed of Shindzwani and Shimaore and the Western group composed of Shimwali and Shingazidja, our results point to a rather different classification.With external cladistics we mean the phylogenetic position of the Comorian languages with respect to the Sabaki and Makhuwa languages spoken along the South-Eastern coast of Africa. During the years consensus has been reached that Comorian Bantu languages belong to the Sabaki group, but they are different from Swahili, our findings confirm this conclusion.

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