| Contributors | Affiliation | Role |
|---|---|---|
| Chapman, John | Oregon State University (OSU-HMSC) | Principal Investigator |
| Copley, Nancy | Woods Hole Oceanographic Institution (WHOI BCO-DMO) | BCO-DMO Data Manager |
A major objective of the JTMD project was to characterize the biodiversity of the arriving and landed JTMD fauna and flora. This dataset includes length and reproductive development of Caprella spp. amphipods collected from the debris.
Access to this data is temporarily RESTRICTED. Please contact the PI's for further information.
Amphipod specimens were collected from Japanese tsunami marine debris (JTMD) from 2012-2014 at coastal sites in Oregon.
BCO-DMO Processing:
- added conventional header with dataset name, PI name, version date
- renamed parameters to BCO-DMO standard
- replaced spaces with underscores
- changed blank cells to nd
| Parameter | Description | Units |
| entry_num | record entry number | unitless |
| biofoul_object | biofouling sample identification | unitless |
| sample | JTMD sample number | unitless |
| date_coll | local date collected | unitless |
| specimen_id | specimen identifcation number | unitless |
| origin | origin of specimen: Japan or Oregon | unitless |
| species | species name | unitless |
| len_body | body length | millimeters |
| len_pereo2 | length of pereopod 2 | millimeters |
| len_pereo1 | length of pereopod 1 | millimeters |
| sex | sex: I = Intersex; J = juvenile; F = female; M = male; X=bad sample/torn/missing 7th pereopod | unitless |
| develop | reproductive condition: intersex; brood; post-brood; juvenile; pre-brood; male; female | unitless |
| comments | comments | unitless |
| Dataset-specific Instrument Name | |
| Generic Instrument Name | Microscope - Optical |
| Generic Instrument Description | Instruments that generate enlarged images of samples using the phenomena of reflection and absorption of visible light. Includes conventional and inverted instruments. Also called a "light microscope". |
| Website | |
| Platform | Carlton_shore |
| Start Date | 2012-12-01 |
| End Date | 2014-11-30 |
| Description | Japanese tsunami marine debris collection |
I. Biodiversity; Population and Food Web Analysis; Viability and Reproductive Condition; Dispersal Track and Growth History; Shellfish Pathogens/Parasites
This project seeks to document the biodiversity of Japanese species on arriving tsunami-generated debris, through morphological and genetic identification (including massively parallel DNA sequencing of whole community samples) andthrough quantitative replicate samples to determine numerical abundance, density, frequency, and biomass. In addition, species accumulation and rarefaction curves will be determinded to estimate total inbound diversity.
Focuses include:
- Population structure of selected taxa, based on size/age class distributions.
- Viability and reproductive condition of selected taxa, based on fecundity, gonadal indices, and/or spore production, upon arrival.
- Food web analyses based upon tissue stable isotope ratios (δ13C and δ15N).
- Dispersal track and growth history of selected taxa based on oxygen isotopic and elemental composition of shell calcite.
- Identity and prevalence of parasites and pathogens in oysters (Crassostrea gigas) and mussels (Mytilus galloprovincialis).
II. Biotic Attrition Over Time
Comparison of dead species assemblages on JTMD to live assemblages to assess the fate and alteration of debris communities over time.
III. Genetic Matching of Novel Invasions With JTMD Biota
Genetically characterize populations of target species so that if and when new invasions are detected, or when previously established invasions appear to be newly expanding or appearing in new locations, genetic studies can be undertaken to determine if these events are related to the JTMD phenomenon.
This is a Rapid Response Grant.
2020-09-30: Final data was not submitted for this project. The data for this research are available at the Dryad data depository (http://dx.doi.org/10.5061/dryad.rh01m). Contact Dr. Carlton for more information.
| Funding Source | Award |
|---|---|
| NSF Division of Ocean Sciences (NSF OCE) |