http://lod.bco-dmo.org/id/dataset/3990
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2013-07-08
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Lionfish behavior observed during study of effect of density on lionfish behavior at Eleuthera, Bahamas in 2012 (Lionfish Invasion project)
2013-09-12
publication
2013-09-12
revision
BCO-DMO Linked Data URI
2013-09-12
creation
http://lod.bco-dmo.org/id/dataset/3990
Mark Hixon
Oregon State University
principalInvestigator
Cassandra E. Benkwitt
Oregon State University
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Hixon, M., Benkwitt, C. E. (2013) Lionfish behavior observed during study of effect of density on lionfish behavior at Eleuthera, Bahamas in 2012 (Lionfish Invasion project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 12 Sept 2013) Version Date 2013-09-12 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/3990 [access date]
Lionfish behavior observed during study of effect of density on lionfish behavior. Dataset Description: <p>An observational field study was conducted on natural patch reefs with varying lionfish densities to determine if local invasive lionfish density affects lionfish behavior. This dataset contains information on activities during each 10-minute focal lionfish observation. The observations took place on natural reefs near Rock Sound, Eleuthera, Bahamas from 16 July to 30 August 2012.</p>
<p>Also see related dataset from sub-project "Effect of invasive lionfish density on behavior": <a href="https://www.bco-dmo.org/dataset/3991" target="_blank">lionfish density effect on movement</a></p>
<p><strong>Related Publications:</strong><br />
Benkwitt, C.E. In Prep.&nbsp; Higher invasive lionfish densities lead to increased collective foraging range.</p> Methods and Sampling: <p>Each reef was visited at three times of day: dawn, midday, and dusk, and two focal lionfish were observed during each visit at each reef. Focal lionfish were observed for 10 minute intervals and all activity was recorded. The number of lionfish on each reef was counted at the beginning of the observation period and again at the end, to get a measure of how many were leaving/returning to the reef from the surrounding seagrass.&nbsp;</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-0851162 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=0851162
completed
Mark Hixon
Oregon State University
Department of Zoology 3029 Cordley Hall
Corvallis
OR
97331-2914
USA
hixonm@science.oregonstate.edu
pointOfContact
Cassandra E. Benkwitt
Oregon State University
c.benkwitt@lancaster.ac.uk
pointOfContact
asNeeded
Dataset Version: 12 Sept 2013
Unknown
site
lat
lon
surface_area
time_of_day
count_start
count_end
count_avg
density_start
density_end
density_avg
cloud_cover_pcnt
temp_F
obs_id
date
time_start
time_end
depth_ft
location
current_strength
len_tot
rest_prop
hover_prop
swim_prop
hunt_prop
num_strikes
prey_species_struck
num_blowing
prey_species_blew
num_kills
prey_species_killed
person
notes
theme
None, User defined
site
latitude
longitude
No BCO-DMO term
time_of_day
count
cloud_pct
date
time_start
time_end
site description
fish_len
taxon_code
person name
comments
featureType
BCO-DMO Standard Parameters
Eleuthera_Reef_Surveys_2012
service
Deployment Activity
Eleuthera, Bahamas
place
Locations
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Ecological Release and Resistance at Sea: Invasion of Atlantic Coral Reefs by Pacific Lionfish
http://hixon.science.oregonstate.edu/content/highlight-lionfish-invasion
Ecological Release and Resistance at Sea: Invasion of Atlantic Coral Reefs by Pacific Lionfish
<p>Invasive species are increasingly introduced by human activities to new regions of the world where those species have never existed previously. In the absence of natural enemies (predators, competitors, and diseases) from their homeland, invasives may have strong negative effects on invaded ecosystems, especially systems with fewer species ("ecological release"), and may even drive native species extinct. However, if native natural enemies can somehow control the invaders ("ecological resistance"), then ecological disruption can be prevented or at least moderated. Most of the many invasive species in the sea have been seaweeds and invertebrates, and the few documented invasive marine fishes have not caused major problems. However, this situation has recently changed in a stunning and ominous way. In the early 1990s, lionfish (<i>Pterois volitans</i>) from the Pacific Ocean were accidentally or intentionally released from aquaria to the ocean in the vicinity of Florida. Camouflaged by shape and color, protected by venomous spines, consuming native coral-reef fishes voraciously, and reproducing rapidly, lionfish have subsequently undergone a population explosion. They now range from the mid-Atlantic coast of the US to the Caribbean, including the Bahamas. Native Atlantic fishes have never before encountered this spiny, stealthy, efficient predator and seldom take evasive action. In fact, the investigator has documented that a single lionfish is capable of reducing the abundance of small fish on a small coral patch reef by nearly 80% in just 5 weeks. There is great concern that invasive lionfish may severely reduce the abundance of native coral-reef fishes important as food for humans (e.g., grouper and snapper in their juvenile stages) as well as species that normally maintain the integrity of coral reefs (e.g., grazing parrotfishes that can prevent seaweeds from smothering corals). There are far more species of coral-reef fish in the Pacific than the Atlantic, so this invasion may represent a case of extreme ecological release with minor ecological resistance. Dr. Hixon and colleagues will study the mechanisms of ecological release in lionfish, as well as examine potential sources of ecological resistance in the heavily invaded Bahamas. Because very little is known about the ecology and behavior of lionfish in their native Pacific range, he will also conduct comparative studies in both oceans, which may provide clues regarding the extreme success of this invasion. In the Bahamas, the investigator will document the direct and indirect effects on native species of the ecological release of lionfish, both as a predator and as a competitor. These studies will be conducted at various scales of time and space, from short-term experiments on small patch reefs, to long-term experiments and observations on large reefs. Whereas direct effects involve mostly changes in the abundance of native species, indirect effects can be highly variable. For example, lionfish may actually indirectly benefit some native species by either consuming or outcompeting the competitors of those natives. The project will explore possible ecological resistance to the invasion by determining whether any native Bahamian species are effective natural enemies of lionfish, including predators, parasites, and competitors of both juvenile and adult lionfish. Comparative studies of natural enemies, as well as lionfish ecology and behavior, in both the Atlantic and the Pacific may provide clues regarding the explosive spread of lionfish in the Atlantic.</p>
<p>Regarding broader impacts, this basic research will provide information valuable to coral-reef and fisheries managers fighting the lionfish invasion in the US, the Bahamas, and the greater Caribbean, especially if sources of native ecological resistance are identified. The study will fund the PhD research of U.S. graduate students, as well as involve assistance and participation by a broad variety of undergraduates and reef/fisheries managers, including women, minorities, native Bahamians, and native Pacific islanders. Participation in this project will promote education in marine ecology and conservation biology directly via Dr. Hixon's and graduate students' teaching and outreach activities, and indirectly via the experiences of undergraduate field assistants and various associates.</p>
Lionfish Invasion
largerWorkCitation
project
eng; USA
biota
oceans
Eleuthera, Bahamas
-76.28902
-76.24447
24.79488
24.88247
2012-07-16
2012-08-30
Bahamas; Cayman Islands; Mariana Islands; Philippines
0
BCO-DMO catalogue of parameters from Lionfish behavior observed during study of effect of density on lionfish behavior at Eleuthera, Bahamas in 2012 (Lionfish Invasion project)
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/35527.rdf
Name: site
Units: text
Description: <p>Name of individual reef site.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35528.rdf
Name: lat
Units: decimal degrees
Description: <p>Latitude of the reef site.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35529.rdf
Name: lon
Units: decimal degrees
Description: <p>Longitude of the reef site.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35530.rdf
Name: surface_area
Units: m^2
Description: <p>Surface area of reef (meters squared).</p>
http://lod.bco-dmo.org/id/dataset-parameter/35531.rdf
Name: time_of_day
Units: text
Description: <p>Classified as Dawn, Midday, or Dusk</p>
http://lod.bco-dmo.org/id/dataset-parameter/35532.rdf
Name: count_start
Units: integer
Description: <p>Number of lionfish present at the reef at the start of the observation.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35533.rdf
Name: count_end
Units: integer
Description: <p>Number of lionfish present at the reef at the end of the observation.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35534.rdf
Name: count_avg
Units: number
Description: <p>Average number of lionfish present on the reef at that site at that observation (average of lionfish number start and end) .</p>
http://lod.bco-dmo.org/id/dataset-parameter/35535.rdf
Name: density_start
Units: #/m^2
Description: <p>Lionfish density at site at the start of the observation (number of lionfish per meter squared).</p>
http://lod.bco-dmo.org/id/dataset-parameter/35536.rdf
Name: density_end
Units: #/m^2
Description: <p>Lionfish density at site at the end of the observation (number of lionfish per meter squared).</p>
http://lod.bco-dmo.org/id/dataset-parameter/35537.rdf
Name: density_avg
Units: #/m^2
Description: <p>Average density of lionfish present on the reef at that site at that observation (average of lionfish density start and end) in number per meter sqaured.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35538.rdf
Name: cloud_cover_pcnt
Units: %
Description: <p>Percent cloud cover.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35539.rdf
Name: temp_F
Units: degrees F
Description: <p>Temperature underwater (measured with dive computer) in degrees F.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35540.rdf
Name: obs_id
Units: integer
Description: <p>Unique number given to each focal lionfish observation.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35541.rdf
Name: date
Units: mm/dd/YYYY
Description: <p>Date of observation (month/day/year).</p>
http://lod.bco-dmo.org/id/dataset-parameter/35542.rdf
Name: time_start
Units: HH:MM
Description: <p>Time of the start of the observation (24-hr clock).</p>
http://lod.bco-dmo.org/id/dataset-parameter/35543.rdf
Name: time_end
Units: HH:MM
Description: <p>Time of the end of the observation (24-hr clock).</p>
http://lod.bco-dmo.org/id/dataset-parameter/35544.rdf
Name: depth_ft
Units: feet
Description: <p>Depth of site (measured with dive computer) in feet.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35545.rdf
Name: location
Units: text
Description: <p>Area of reef where lionfish was found at the start of the observation.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35546.rdf
Name: current_strength
Units: text
Description: <p>Current strength:<br />L=low;<br />M=medium;<br /> H=high.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35547.rdf
Name: len_tot
Units: cm
Description: <p>Estimate of lionfish size in total length (centimeters).</p>
http://lod.bco-dmo.org/id/dataset-parameter/35548.rdf
Name: rest_prop
Units: proportion
Description: <p>Proportion of time during the 10-minute observation the focal lionfish spent resting.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35549.rdf
Name: hover_prop
Units: proportion
Description: <p>Proportion of time during the 10-minute observation the focal lionfish spent hovering.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35550.rdf
Name: swim_prop
Units: proportion
Description: <p>Proportion of time during the 10-minute observation the focal lionfish spent swimming.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35551.rdf
Name: hunt_prop
Units: proportion
Description: <p>Proportion of time during the 10-minute observation the focal lionfish spent hunting.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35552.rdf
Name: num_strikes
Units: integer
Description: <p>Number of times lionfish struck (attempt) at a potential prey fish during the 10-minute period.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35553.rdf
Name: prey_species_struck
Units: code
Description: <p>Species code for prey fish lionfish struck at (first two letters are first two letters of genus and second two letters are first two letters of species).</p>
http://lod.bco-dmo.org/id/dataset-parameter/35554.rdf
Name: num_blowing
Units: integer
Description: <p>Number of times lionfish used the blowing technique at a prey during the 10-minute period.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35555.rdf
Name: prey_species_blew
Units: code
Description: <p>Species code for prey fish lionfish blew at (first two letters are first two letters of genus and second two letters are first two letters of species).</p>
http://lod.bco-dmo.org/id/dataset-parameter/35556.rdf
Name: num_kills
Units: integer
Description: <p>Number of times lionfish successfully killed a prey fish during the 10-minute period.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35557.rdf
Name: prey_species_killed
Units: code
Description: <p>Species code for prey fish lionfish killed (first two letters are first two letters of genus andsecond two letters are first two letters of species).</p>
http://lod.bco-dmo.org/id/dataset-parameter/35558.rdf
Name: person
Units: text
Description: <p>Initials of observer of lionfish activity.</p>
http://lod.bco-dmo.org/id/dataset-parameter/35559.rdf
Name: notes
Units: text
Description: <p>Any additional notes.</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
19010
https://datadocs.bco-dmo.org/file/933jzV1szq7jQD/lionfish_density_eff_behavior.csv
lionfish_density_eff_behavior.csv
Primary data file for dataset ID 3990
download
https://osprey.bco-dmo.org/dataset/3990/data/download
download
onLine
dataset
<p>Each reef was visited at three times of day: dawn, midday, and dusk, and two focal lionfish were observed during each visit at each reef. Focal lionfish were observed for 10 minute intervals and all activity was recorded. The number of lionfish on each reef was counted at the beginning of the observation period and again at the end, to get a measure of how many were leaving/returning to the reef from the surrounding seagrass.&nbsp;</p>
Specified by the Principal Investigator(s)
<p>BCO-DMO Processing Notes:<br />
- Modified parameter names to conform with BCO-DMO naming conventions.<br />
- Added lat and lon values for each site included in the original metadata.<br />
- Replaced blanks with 'nd' to indicate 'no data'.<br />
- 08-Jan-2018: removed embargo on dataset.</p>
Specified by the Principal Investigator(s)
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
Deployment: Eleuthera_Reef_Surveys_2012
Eleuthera_Reef_Surveys_2012
Cape_Eleuthera_Reefs
island
Eleuthera_Reef_Surveys_2012
Mark Hixon
Oregon State University
Cape_Eleuthera_Reefs
island