Description
A study of the major cryptofaunal species from reef-flat rubble (slabs and small boulders) at Sa'aga, Upolu Island, has yielded 10 species of Bryozoa (2 new), with the following colonial morphologies: two-dimensionally encrusting - Puellina sp.; Calyptotheca mortoni n. sp., fixed-erect - Reteporellina samoensis n. sp., Triphyllozoon sp.; and rooted-articulated - Crisia elongata, Nellia tenuis, Chlidonia pyriformis; Savignyella lafontii; Vasignyella otophora; Margaretta gracilior. Systematic rearrangements include placing Nellia in the Quadricellariidae, and the Savignyellidae in the superfamily Cateoicelloide Savignyella otophora is made the type species of a new genus Vasignyella. Bryozoa dominate numerically over other suspension feeders in this habitat. Much of the central portions of the rubble undersides are occupied by bryozoans, surrounded by sponges and ascidians, with the periphery dominated by crustose-coralline algae. Rooted, flexible Bryozoa can be so numerous as to form a turf.
The present collection is very small (a deliberate collection of bryozoans not having been made for the whole shore) but otherwise representative of the genera and morphotypes found elsewhere in such reefal environments.
Data Records
The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 20 records.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versions
The table below shows only published versions of the resource that are publicly accessible.
How to cite
Researchers should cite this work as follows:
Gordon D (2024). Intertidal bryozoans from coral reef-flat rubble Sa‘aga, Western Samoa. Version 1.0. The National Institute of Water and Atmospheric Research (NIWA). Occurrence dataset. https://nzobisipt.niwa.co.nz/resource?r=upolo_bryozoa&v=1.0
Rights
Researchers should respect the following rights statement:
The publisher and rights holder of this work is The National Institute of Water and Atmospheric Research (NIWA). This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License.
GBIF Registration
This resource has been registered with GBIF, and assigned the following GBIF UUID: 140a7fca-5ad2-40a8-8bc2-1ead92d0a42e. The National Institute of Water and Atmospheric Research (NIWA) publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF New Zealand.
Keywords
Occurrence; Observation
Contacts
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Geographic Coverage
Sa' aga, just southeast of Si 'umu on the south coast of Upolu Island, Samoa.
| Bounding Coordinates | South West [-14.03, -171.774], North East [-14.027, -171.771] |
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Sampling Methods
Bryozoans have apparently not been collected from Samoa before this dataset. The present specimens collected by Professor J. E. Morton, Auckland University, came from the underside of coral reef-flat rubble (slabs and small boulders of hermatypic corals) on the fringing reef at Sa' aga, just southeast of Si 'umu on the south coast of Upolu Island, Western Samoa.
| Study Extent | fringing reef at Sa' aga, just southeast of Si 'umu on the south coast of Upolu Island, Samoa. |
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Method step description:
- The undersides of the coral rubble in <1m of water were examined to explore the ecology of the fringing reef.
Bibliographic Citations
- Dennis P. Gordon (1989) Intertidal bryozoans from coral reef-flat rubble Sa‘aga, Western Samoa, New Zealand Journal of Zoology, 16:3, 447-463 DOI: 10.1080/03014223.1989.10422912
Additional Metadata
marine, harvested by iOBIS
| Alternative Identifiers | https://nzobisipt.niwa.co.nz/resource?r=upolo_bryozoa |
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