scholarly journals Dynamics of early juvenile winter flounder predation risk on a North West Atlantic estuarine nursery ground

2006 ◽  
Vol 328 ◽  
pp. 249-265 ◽  
Author(s):  
JP Manderson ◽  
J Pessutti ◽  
P Shaheen ◽  
F Juanes
Keyword(s):  
Predation Risk ◽  
Winter Flounder ◽  
Nursery Ground ◽  
Early Juvenile ◽  
North West

Do changes in reef habitats influence relative predation risk on the juvenile Australasian spiny lobster, Jasus edwardsii (Hutton, 1875)?

Crustaceana ◽  
2015 ◽  
Vol 88 (7-8) ◽  
pp. 839-856 ◽  
Author(s):  
J. Hesse ◽  
J. A. Stanley ◽  
A. G. Jeffs
Keyword(s):  
Predation Risk ◽  
Spatial Scales ◽  
Spiny Lobster ◽  
Habitat Type ◽  
Small Spatial Scale ◽  
Important Species ◽  
Early Juvenile ◽  
Risk Of Predation ◽  
Jasus Edwardsii ◽  
Commercially Important

Kelp habitats are in decline in many temperate coastal regions of the world due to climate change and expansion of populations of grazing urchins. The loss of kelp habitat may influence the vulnerability to predators of the juveniles of commercially important species. In this study relative predation rates for kelp versus barren reef habitat were measured for early juvenile Australasian spiny lobster, Jasus edwardsii (Hutton, 1875), on the northeastern coast of New Zealand using tethering methods. Variation in assemblages of predators over small spatial scales appeared to be more important for determining the relative predation of lobsters, regardless of habitat type. Therefore, the assessment of relative predation risk to early juvenile lobsters between kelp and barren habitats will require more extensive sampling at a small spatial scale, as well as a specific focus on sampling during crepuscular and nocturnal periods when these lobsters are most at risk of predation.

Community structure and zoogeographic affinities of the coastal fishes of the Dampier region of north-western Australia.

1985 ◽  
Vol 36 (2) ◽  
pp. 247 ◽  
Author(s):  
SJM Blaber ◽  
JW Young ◽  
MC Dunning
Keyword(s):  
Community Structure ◽  
Western Australia ◽  
High Tide ◽  
Organic Content ◽  
Tidal Range ◽  
Nursery Ground ◽  
North West ◽  
Physical Conditions ◽  
The North ◽  
North Western

The species composition and broad trophic structure of the mangrove creek and open shore fish communities of the Dampier region in tropical north-western Australia are described. The habitats are characterized by a lack of freshwater influence, low turbidity and a tidal range in excess of 4 m. Both mangroves and open shores have a diversity of species typical of Indo-west Pacific coastal waters but the physical conditions have modified the community structure both to exclude many families that prefer areas of higher turbidity and reduced salinity, and to include others that usually occur only in clear waters. The fish faunas of the mangroves (113 species) and open shores (106 species) are compared: 54 species were common to both. The deeper waters were dominated by piscivores, which penetrated throughout the mangroves at high tide. Iliophagous species were abundant, particularly in the mangroves where the organic content of the substratum (7.8-8.2%) was not reduced markedly compared with other areas of the Indo-Pacific, despite the lack of freshwater inflow. The clear and deep water in the mangroves at high tide favour predation on juveniles by piscivorous fishes and reduce the effectiveness of such areas as nurseries. There is virtually no overlap of the fauna with that of the deeper waters (>20 m) of the North West Shelf, and the inshore region is not a significant nursery ground for any of the commercially important deeper water species.

Growth of early juvenile winter flounder (Pseudopleuronectes americanus Walbaum)

2005 ◽  
Vol 36 (16) ◽  
pp. 1595-1601 ◽  
Author(s):  
Benjamin Montgolfier ◽  
Celine Audet ◽  
Yvan Lambert
Keyword(s):  
Winter Flounder ◽  
Pseudopleuronectes Americanus ◽  
Early Juvenile
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