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Investigation of the relationship of the fish population with their associated benthos community (population counts, activity and stomach content)
Entry ID: K054_1991_1992_NZ_2


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Summary
Abstract: The relationship between the benthos and fish populations associated with it was investigated. Fish counts, fish behaviour and samples of fish were collected. Four 5m x 2m transects were surveyed for fish counts at four sites at Cape Armitage and Pram Point. The sites at Cape Armitage represented four different depths over the reef platform. At Pram Point, two shallow sites and two deep sites were surveyed. Within each transect, all fish observed by a diver with a torch were identified and recorded with an estimate of their total length. Up to 10 fish at each site were followed for ten minutes. Their behaviour every minute was recorded. These observations discontinued after 2 days as the fish were found to be inactive for great lengths of time. Diving observations were limited to a maximum of 40 minutes and this method therefore proved inefficient to continue this survey. Ten fish of a range of sizes from each species (Trematomus bernacchii, T. pennellii (centronotus) and T. hansoni) were collected from an area distant from the survey sites so as not to interfere with densities in the monitored area. Each fish was measured and weighed, then fixed in bouins and the gut injected with preservative. Samples were analysed for gut content, sex and age.

Parent DIF
This data set description is a member of a collection. The collection is described in
K054_1991_1992_NZ_1


Geographic Coverage
 N: -77.85 S: -77.85  E: 166.6667  W: 166.6667
 Min Depth: 0  Max Depth: 25
 N: -77.85 S: -77.85  E: 166.75  W: 166.75
 Min Depth: 0  Max Depth: 25

Temporal Coverage
Start Date: 1991-10-16
Stop Date: 1991-11-09


Location Keywords
CONTINENT > ANTARCTICA
CONTINENT > ANTARCTICA > ROSS ISLAND
CONTINENT > ANTARCTICA > CAPE ARMITAGE
CONTINENT > ANTARCTICA > PRAM POINT
GEOGRAPHIC REGION > POLAR


Science Keywords
BIOLOGICAL CLASSIFICATION >ANIMALS/VERTEBRATES >FISH >RAY-FINNED FISHES
BIOSPHERE >AQUATIC ECOSYSTEMS >BENTHIC HABITAT    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >REEF HABITAT    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >MARINE HABITAT    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >SPECIES/POPULATION INTERACTIONS >EVOLUTIONARY ADAPTATION    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >BIODIVERSITY FUNCTIONS    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >COMMUNITY STRUCTURE    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >ECOSYSTEM FUNCTIONS    [Definition]


ISO Topic Category
BIOTA


Platform
FIELD INVESTIGATION    [Information]


Data Set Progress
COMPLETE


Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand    [Information]
Data Center URL: http://www.antarcticanz.govt.nz/

Data Center Personnel
Name: SHULAMIT GORDON
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Personnel
CHRIS BATTERSHILL
Role: INVESTIGATOR
Phone: +61 (07) 4753 4431
Fax: +61 (07) 4772 5852
Email: c.battershill at aims.gov.au
Contact Address:
Australian Institute of Marine Science
PMB 3, Townsville MC
City: Townsville
Province or State: Queensland
Postal Code: 4819
Country: Australia


CEISHA POIROT
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: c.poirot at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


SHULAMIT GORDON
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand



Creation and Review Dates
DIF Creation Date: 2009-05-21
Last DIF Revision Date: 2009-06-06


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