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Journal of Oceanography and Marine Research | ISSN: 2572-3103 | Volume 6
&
Marine Science, Coastal Dynamics and Management
6
th
International Conference on
Oceanography, Ocean Technology and Marine Biology
6
th
International Conference on
September 21-22, 2018 | Dallas, USA
Diel migration of microzooplankton Tintinnid in Masinloc Oyon-Bay Marine Reserve
Jane Abigail Santiago
and
Maria Carmen Lagman
De La Salle University, Philippines
D
iel vertical migration (DVM) is considered as a general characteristic of the zooplankton community. During the night, most of
the zooplankton have a high occurrence in the surface layer of the water to feed on phytoplankton and descends during the day
to avoid predators, however, reverse patterns also occur to other organisms. Tintinnids, a cosmopolitan group of microzooplankton,
have been observed to be abundant on the upper layers both in coastal and open seas. This study aimed to assess the diel migration of
tintinnids in marine environment and test if they follow the zooplankton general diel characteristic. Tintinnids were collected on the
month of July 2017 at 8 stations in Masinloc-Oyon Bay. Plankton net with 20µm mesh size was horizontally towed at 1-meter depth
for 10mins with a speed of 1.5-2.0 knots. Vertical tows were also performed by lowering the net at 1 meter above the bottom to the
surface. Night sampling was done at 9pm-4am while the day-time collection was conducted at 9am-4pm. Both sampling periods were
conducted during high tide with a depth range of 11-21 meters. One of the noteworthy findings of this study is the recorded visibility
of tintinnids in the surface layers both in the night and day-time collection. No significant difference was observed between night
and day-time abundances using horizontal tow. A significant difference was recorded between night and day-time abundance with
vertical tow. The results suggest that tintinnids might deviate from the generalized diel characteristic of the zooplankton community.
This current work presented a potential area of interest about tintinnids distribution pattern.
janeabigailsantiago20@gmail.comJ Oceanogr Mar Res 2018, Volume 6
DOI: 10.4172/2572-3103-C1-006