L. crocodilus
|
Myctophidae
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Trophic & and habitat-driven ontogenetic shifts
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Species showing ontogenetic shifts in both their vertical distribution
(largest individuals at greater depth) and their trophic ecology
(increase of δ15N values with the size of the
individuals).
|
M. atlanticum |
Zoarcidae |
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M. punctatum |
Myctophidae |
Trophic-driven
ontogenetic shift |
|
Species showing only an ontogenetic shift in
their trophic ecology (influence of individual size on
δ15N values, but no effect of depth whenever it could
be tested). |
A. risso |
Paralepididae |
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S. beanii |
Serrivomeridae |
|
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S. boa* |
Stomiidae |
|
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A. carbo* |
Trichiuridae |
|
|
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A. olfersii |
Sternoptychidae |
Depth-driven increase in
δ15N values |
|
Species showing an increase of their
δ15N values with depth (but no effect of size).
X. copei also showed an ontogenetic shift in the vertical
distribution of individuals (the smallest individuals were not found in
the deepest stations). |
X. copei |
Alepocephalidae |
|
|
|
N. kroyeri |
Myctophidae |
No ontogenetic shift |
|
Species with no observed ontogenetic shifts (no effect of depth on
δ15N values). Moreover, N. kroyeri and
L. macdonaldi had a low CV of their δ15N values
(CV <3) while S. koefoedi had a wider dispersion of
δ15N values (CV = 4.81). |
L. macdonaldi |
Myctophidae |
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S. koefoedi |
Platytroctidae |
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Community |
- |
Trophic
& and habitat-driven ontogenetic shifts |
|
The whole community showed
an increase in individual sizes with depth. A weak but significant
relationship was also found between δ15N values and
individual size. |