Shinkai Seep Field
Latitude: 11.651οN Longitude: 143.049οE Depth: 5700 m bsl
Shinkai Seep Field (SSF) is an outcrop of serpentinized peridotite hosted hydrothermal vent system in the southern Mariana forearc (Ohara et al., 2011). Methane seepages (Yamanaka et al., 2015) as well as abundant vesicomyid clam communities (Ohara et al., 2011) are found in this serpentinite-hosted hydrothermal vent system. The organisms other than the vesicomyid clams are actiniarians, zoanthids, a Beroe comb jelly, buccinid snails, and galatheid crabs (Ohara et al., 2011).
Table 1: Operations history for Shinkai Seep vent
| Ship/ Platform | Operation | Year | Dive Number | References |
| YK15-11 Yokosuka/ Shinkai 6500 | Not found | 2015 | 6K-1433 | YK15-11 cruise report |
Table 2: Activity and Rock types
| Activity and rock types | References | |
| Activity | No active fluid venting | Ohara et al., 2011 |
| Rock types | Serpentinized peridotite | Ohara et al., 2011 |
Table 3: Vent Biology
| General name | Phylum | Class/Order | Family | Species | References |
| Actiniarians | Cnidaria | Ohara et al., 2011 | |||
| Beroe comb jelly | Ctenophora | Ohara et al., 2011 | |||
| Buccinid snails | Mollusca | Ohara et al., 2011 | |||
| Galatheid crabs | Arthropoda | Ohara et al., 2011 | |||
| Zoanthids | Cnidaria | Ohara et al., 2011 | |||
| Vesicomyid clams | Mollusca | Bivalvia/Veneroida | Vesicomyidae | Calyptogena (Abyssogena) mariana | Yamanaka et al., 2015 |
| Vesicomyid clams | Mollusca | Bivalvia/Veneroida | Vesocomyidae | Abyssogena southwardae | Ohara et al., 2011; Krylova et al.,2009 |
Images: None known
Vent fluid characteristics: None known
Video Links: None known
References:
- Krylova, E. M., Sahling, H., Janssen, R., 2010. Abyssogena: a new genus of the family Vesicomyidae (Bivalvia) from deep-water vents and seeps. Journal of Molluscan Studies 76, 107–132.
- Ohara, Y., Reagan, M. K., Fujikura, K., Watanabe, H., Michibayashi, K., Ishii, T., Stern, R. J., Pujana I., Martinez, F., Girard, G., Ribeiro, J., Brounce, M., Komori, N., Kino, M., 2011. A serpentinite-hosted ecosystem in the Southern Mariana Forearc. PNAS 109 (8), 2831–2835.
- Yamanaka, T., Shimamura, S., Nagashio, H., Yamagami, S., Onishi, Y., Hyodo, A., Mampuku, M., Mizota, C., 2015. A Compilation of the Stable Isotopic Compositions of Carbon, Nitrogen, and Sulfur in Soft Body Parts of Animals Collected from Deep-Sea Hydrothermal Vent and Methane Seep Fields: Variations in Energy Source and Importance of Subsurface Microbial Processes in the Sediment-Hosted Systems. In: Ishibashi, J., Okino, K., Sunamura, M. (Eds.), Subseafloor Biosphere Linked to Hydrothermal Systems: TAIGA Concept. Springer Japan, 105-129.
Website References:
- Yokosuka cruise report YK15-11 http://www.godac.jamstec.go.jp/catalog/data/doc_catalog/media/YK15-11_all.pdf (accessed 2/27/2017)