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Occurrence record: 242

of Carcharhinus melanopterus | blacktip reef shark recorded on 2013-02-21

Dataset

Data resource SharkBase
Occurrence ID 242
Basis of record Not supplied
Sex unknown
Individual count 12
License CC-BY-NC-Int
Occurrence remarks These are black tip reef sharks we saw while staying at the Haad Tien resort on Koh Tao in 2013. We saw baby reef sharks which was really cool to see. I saw two baby sharks maybe 1-2 feet long that day and was able to get a picture of one of them. The first baby shark was in the shallows of the bay and the second one, which is in the picture, was seen deeper in the bay where the adults were. I'm not sure how many sharks were in the bay but I would take a guess of about a dozen.
Occurrence status present
Abcd identification qualifier Not provided

Event

Record date 2013-02-21
Supplied date "Thu Feb 21 00:00:00 AEDT 2013"
Date precision Day

Taxonomy

Scientific name Carcharhinus melanopterus
Taxon rank species
Common name blacktip reef shark
Supplied common name "Black Tip reef Shark"
Kingdom Animalia
Phylum Chordata
Class Chondrichthyes
Order Carcharhiniformes
Family Carcharhinidae
Genus Carcharhinus
Species Carcharhinus melanopterus
Taxonomic issue No issues
Name match metric Exact match
The supplied name matched the name exactly.
Name parse type wellformed

Geospatial

Locality haad tien ko tao
Latitude 10.065246
Longitude 99.832152
Geodetic datum EPSG:4326
Water body Gulf of Thailand (Siam)
Coordinate precision Unknown

Additional properties

conditions Calm
dcterms:bibliographic citation Kempster RM and Egeberg CA (2015). SharkBase citizen science global chondrichthyan sighting database. Support Our Sharks Ocean Conservation Society. Version 2015.07. www.shark-base.org (consulted on 29/06/2015)
sighting type Diving/Snorkelling
visibility Good

User flagged issues 

User Assertion Status:

    Data quality tests

    Test name Result
    Occurrence status assumed to be present Warning
    Geodetic datum assumed WGS84 Warning
    Invalid collection date Passed
    Incomplete collection date Passed
    First of the month Passed
    Data are generalised Passed
    Name not supplied Passed
    Name not recognised Passed
    Invalid scientific name Passed
    Name not in national checklists Passed
    Decimal coordinates not supplied Passed
    Coordinates are transposed Passed
    Coordinates are out of range for species Passed
    Supplied coordinates are zero Passed
    Zero latitude Passed
    Zero longitude Passed
    Location not supplied Passed
    Country inferred from coordinates Passed
    Supplied coordinates centre of state Passed
    Coordinates centre of country Passed
    Missing geodetic datum Passed
    Show/Hide 14 missing properties
    Show/Hide 51 tests that have not been run

    Additional political boundaries information

    Area Management
    Global 200 priority ecoregions - Terrestrial Kayah-Karen/Tenasserim Moist Forests
    Biodiversity
    Freshwater Ecoregions of the World Malay Peninsula Eastern Slope
    Terrestrial Ecoregional Boundaries Tenasserim-South Thailand Semi-Evergreen Rain Forests
    Marine
    FAO Fishery Statistical Areas 71
    Marine Ecoregions of the World Gulf of Thailand

    Environmental sampling for this location

    Biodiversity
    Endemism 0.0
    Endemism (Non-marine) 0.0
    Occurrence Density 0.024691358 frequency
    Shannon Diversity (H) 0.0 index
    Species Richness 0.024691358 frequency
    Climate
    WorldClim: Precipitation - annual 1835.0 mm
    WorldClim: Precipitation - coldest quarter 701.0 mm
    WorldClim: Precipitation - driest month 56.0 mm
    WorldClim: Precipitation - driest quarter 186.0 mm
    WorldClim: Precipitation - seasonality 60.0
    WorldClim: Precipitation - warmest quarter 330.0 mm
    WorldClim: Precipitation - wettest month 395.0 mm
    WorldClim: Precipitation - wettest quarter 838.0 mm
    WorldClim: Temperature - annual mean 270.0 degrees C * 10
    WorldClim: Temperature - annual range 134.0 degrees C * 10
    WorldClim: Temperature - coldest month min 204.0 degrees C * 10
    WorldClim: Temperature - coldest quarter mean 253.0 degrees C * 10
    WorldClim: Temperature - diurnal range mean 91.0 degrees C * 10
    WorldClim: Temperature - driest quarter mean 271.0 degrees C * 10
    WorldClim: Temperature - isothermality 67.0 %
    WorldClim: Temperature - seasonality 1157.0 standard deviation (degrees C * 10) * 100
    WorldClim: Temperature - warmest month max 338.0 degrees C * 10
    WorldClim: Temperature - warmest quarter mean 283.0 degrees C * 10
    WorldClim: Temperature - wettest quarter mean 258.0 degrees C * 10
    Distance
    Marspec Distance to Shore 1.0 km
    Marine
    Marspec Annual Range in Sea Surface Salinity 1.49 100 x psu
    Marspec Annual Range in Sea Surface Temperature 2.27 100 x degrees C
    Marspec Annual Variance in Sea Surface Salinity 20.75 100 x psu
    Marspec Annual Variance in Sea Surface Temperature 0.49089998 10,000 x degrees C
    Marspec Bathymetric Slope 0.3 10 x degrees
    Marspec Concavity 0.019000001 1000 x degrees
    Marspec East/West Aspect -0.08 radians
    Marspec Maximum Monthly Sea Surface Salinity 32.77 100 x psu
    Marspec Mean Annual Sea Surface Salinity 31.99 100 x psu
    Marspec Mean Annual Sea Surface Temperature 28.48 100 x degrees C
    Marspec Minimum Monthly Sea Surface Salinity 31.279999 100 x psu
    Marspec North/South Aspect -0.98999995 1 x radians
    Marspec Plan Curvature 1.0E-4 x 10000
    Marspec Profile Curvature -0.0016999999 x 10000
    Marspec Sea Surface Temperature of the coldest ice-free month 27.279999 100 x degrees C
    Marspec Sea Surface Temperature of the warmest ice-free month 29.55 100 x degrees C