Population dynamics of Amphiura chiajei (Echinodermata: Ophiuroidea) in Killary Harbour, on the west coast of Ireland

1992 ◽  
Vol 114 (4) ◽  
pp. 595-605 ◽  
Author(s):  
B. W. Munday ◽  
B. F. Keegan
Keyword(s):  
Population Dynamics ◽  
West Coast ◽  
The West

FIRST RECORD OF TURRIS CLAUSIFOSSATA7, (GASTROPODA: CONOIDEA, TURRIDAE) FROM GULF OF KHAMBHAT, INDIA

2017 ◽  
Vol 23 (1) ◽  
Author(s):  
DEVENDRA SOLANKI ◽  
JIGNESH KANEJIYA ◽  
BHARATSINH GOHIL
Keyword(s):  
Population Dynamics ◽  
West Coast ◽  
First Record ◽  
The State ◽  
Distribution Range ◽  
The South ◽  
The West ◽  
West Coast Of India ◽  
Gulf Of Kachchh ◽  
First Time

Turris clausifossata, a Conoid, Turrid is being reported for the first time from Gopnath coast, Gulf of Khambhat the state of Gujarat situated on the west coast of India. Turris clausifossata was first recorded7 from Dwarka, Gulf of Kachchh, Gujarat (21°49’N, 68°55’E), but not brought to light as first record to the west coast of India. Yet, its occurrence was reported only at two coasts of Gujarat. Current research reveals that Turris clausifossata is extending its distribution range to the south of Dwarka on the west coast of India. Present study was carried out from April 2015 to March 2016 and in this study, a status of species presented in form of population dynamics and seasonal availability.

Seasonal population dynamics of the non-native Caprella mutica (Crustacea, Amphipoda) on the west coast of Scotland

2010 ◽  
Vol 61 (5) ◽  
pp. 549 ◽  
Author(s):  
Gail V. Ashton ◽  
Michael T. Burrows ◽  
Kate J. Willis ◽  
Elizabeth J. Cook
Keyword(s):  
Population Dynamics ◽  
West Coast ◽  
Anthropogenic Disturbance ◽  
Native Species ◽  
Fish Farm ◽  
Fish Farms ◽  
The West ◽  
Caprella Mutica ◽  
Seasonal Population ◽  
Seasonal Population Dynamics

Information on the life history and population dynamics of non-native species is essential to understand the process of invasion and impacts on invaded ecosystems. The non-native marine caprellid amphipod Caprella mutica has successfully established populations on coastlines throughout the temperate northern hemisphere and in New Zealand in the southern hemisphere. The introduction mechanism has been surpassed and it is now important to understand its ecology and biology in non-native habitats. The seasonal population dynamics of C. mutica were investigated over 18 months at four sites with different levels of anthropogenic disturbance on the west coast of Scotland. Abundance of C. mutica fluctuated seasonally at all sites, peaking during June to October. The highest abundance recorded on a single mesh collector was 319 000 individuals m−2 in August 2004 at one of the fish farms. Both seasonal and site-specific factors influenced the population dynamics of C. mutica. Both males and females were significantly larger and more abundant at the fish farm sites. Individuals displayed reproductive characteristics at a smaller size at the fish farm sites, indicating earlier maturity. The results suggest that anthropogenic disturbance and artificial resource enhancement contribute to the global establishment success of non-native C. mutica.

Eelgrass (Zostera marina) restoration on the west coast of Sweden using seeds

2016 ◽  
Vol 546 ◽  
pp. 31-45 ◽  
Author(s):  
E Infantes ◽  
L Eriander ◽  
PO Moksnes
Keyword(s):  
West Coast ◽  
Zostera Marina ◽  
The West

Changes in soil quality following humping/hollowing and flipping of pakihi soils on the West Coast, South Island New Zealand

2007 ◽  
pp. 265-270 ◽  
Author(s):  
S.M. Thomas ◽  
M.H.Beare C.D. Ford ◽  
V. Rietveld
Keyword(s):  
Organic Matter ◽  
Soil Quality ◽  
West Coast ◽  
Land Development ◽  
Hot Water ◽  
Limited Information ◽  
The West ◽  
Organic Matter Quality ◽  
Pasture Production ◽  
Soil C

Humping/hollowing and flipping are land development practices widely used on the West Coast to overcome waterlogging constraints to pasture production. However, there is very limited information about how the resulting "new" soils function and how their properties change over time following these extreme modifications. We hypothesised that soil quality will improve in response to organic matter inputs from plants and excreta, which will in turn increase nutrient availability. We tested this hypothesis by quantifying the soil organic matter and nutrient content of soils at different stages of development after modification. We observed improvements in soil quality with increasing time following soil modification under both land development practices. Total soil C and N values were very low following flipping, but over 8 years these values had increased nearly five-fold. Other indicators of organic matter quality such as hot water extractable C (HWC) and anaerobically mineralisable N (AMN) showed similar increases. With large capital applications of superphosphate fertiliser to flipped soils in the first year and regular applications of maintenance fertiliser, Olsen P levels also increased from values

Sign in / Sign up

Export Citation Format

Share Document