10 MARINE MAMMALS AND SEA TURTLES - Hebron Project
10 MARINE MAMMALS AND SEA TURTLES - Hebron Project
10 MARINE MAMMALS AND SEA TURTLES - Hebron Project
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<strong>Hebron</strong> <strong>Project</strong> Comprehensive Study Report<br />
Marine Mammals and Sea Turtles<br />
<strong>10</strong>.3 Existing Conditions<br />
<strong>10</strong>.3.1 Marine Mammals<br />
A total of 21 marine mammals, including five baleen whales (mysticetes), 12<br />
toothed whales (odontocetes), and four true seals (phocids), are known to<br />
occur in the Nearshore and/or Offshore Study Areas (Table <strong>10</strong>-2). The<br />
temporal and spatial distribution, habitat, and relevant SARA listings and<br />
COSEWIC designations for each species are presented in Table <strong>10</strong>-2. At-risk<br />
species are described in greater detail in Chapter 11. Most marine mammals<br />
are seasonal inhabitants of the Study Areas, with both regions representing<br />
important foraging grounds for many species. The best available abundance<br />
estimates for each of the marine mammal species in the Northwest Atlantic,<br />
as well as for eastern Newfoundland, are provided in Table <strong>10</strong>-3.<br />
Table <strong>10</strong>-2 Marine Mammals Known or Expected to Occur within the Nearshore and<br />
Offshore Study Areas<br />
Species Bull Arm Study Area<br />
<strong>Hebron</strong> Study Area<br />
(Scientific<br />
Occurrence Season Occurrence Season<br />
Name)<br />
Baleen Whales (Mysticetes)<br />
Humpback whale<br />
(Megaptera<br />
novaeangliae)<br />
Blue whale<br />
(Balaenoptera<br />
musculus)<br />
Fin whale<br />
(Balaenoptera<br />
physalus)<br />
Sei whale<br />
(Balaenoptera<br />
borealis)<br />
Minke whale<br />
(Balaenoptera<br />
acutorostrata)<br />
Common<br />
Uncommon<br />
Year-round,<br />
but mostly<br />
June-Sept<br />
Year-round,<br />
but mostly<br />
July-Sept<br />
Common<br />
Uncommon<br />
Common? June-Oct Common<br />
Yearround,<br />
but<br />
mostly<br />
May-Oct<br />
Yearround,<br />
but<br />
mostly<br />
June-Oct<br />
Yearround,<br />
but<br />
mostly<br />
June-Oct<br />
Rare Summer Uncommon May-Sept<br />
Common<br />
Toothed Whales (Odontocetes)<br />
Sperm whale<br />
(Physeter<br />
macrocephalus)<br />
Northern<br />
bottlenose whale<br />
(Hyperoodon<br />
ampullatus) D<br />
Sowerby's<br />
beaked whale<br />
(Mesoplodon<br />
bidens)<br />
Killer whale<br />
(Orcinus orca)<br />
Year-round,<br />
but mostly<br />
June-Oct<br />
Common<br />
Uncommon Summer Uncommon<br />
Very Rare Year-round? Rare<br />
Very Rare Year-round? Rare<br />
Uncommon<br />
?<br />
Year-round,<br />
but mostly<br />
June-Oct<br />
Uncommon<br />
Yearround,<br />
but<br />
mostly<br />
May-Oct<br />
Yearround,<br />
but<br />
mostly<br />
summer<br />
Yearround?<br />
Yearround?<br />
Yearround,<br />
but<br />
mostly<br />
June-Oct<br />
Habitat<br />
Coastal &<br />
banks<br />
Coastal &<br />
pelagic<br />
Slope &<br />
pelagic<br />
Offshore<br />
& pelagic<br />
Shelf,<br />
banks, &<br />
coastal<br />
Pelagic,<br />
slope,<br />
canyons<br />
Pelagic,<br />
canyons,<br />
slope<br />
Pelagic,<br />
deep,<br />
slope,<br />
canyon<br />
Widely<br />
distributed<br />
SARA<br />
Status A<br />
NS<br />
Schedule 1:<br />
Endangered<br />
Schedule 1:<br />
Special<br />
Concern<br />
NS<br />
NS<br />
NS<br />
NS<br />
Schedule 3:<br />
Special<br />
Concern<br />
NS<br />
COSEWIC<br />
Status B<br />
NAR<br />
E<br />
SC<br />
DD<br />
NAR<br />
NAR; LPC<br />
NAR<br />
SC<br />
SC<br />
<strong>10</strong>-4 June 20<strong>10</strong>
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