Archive for the ‘Ocean & Water’ Category
This is a guest post by Monaca Noble, a biologist at the Smithsonian Environmental Research Center’s Marina Invasions Laboratory. For the last 10 years, Ms. Noble has worked on issues related to the transport of marine species in ballast water and the introduced parasite Loxothylacus panopaei.
This June, 49 enthusiastic volunteers came out to search for zombie crabs in Maryland’s Chesapeake Bay. Together they searched through shells from 52 crab collectors distributed throughout the Chesapeake Bay’s tributaries. Volunteers found thousands of White-fingered Mud Crabs (Rhithropanopeus harrisii), hundreds of fish (Naked Gobies, American Eels, and others), and several parasitized zombie crabs at our site on Broomes Island, MD.
What are zombie crabs? Zombie crabs are mud crabs that have been parasitized with the introduced parasitic barnacle, Loxothylacus panopaei (Loxo for short). Loxo is a parasite native to the Gulf of Mexico, the Caribbean, and parts of Florida. It parasitizes at least nine species of mud crabs (xanthid crabs) throughout this range. Read the rest of this entry »
This is a guest post by Michael Bear Citizen Science Project Director at Ocean Sanctuaries. In this post, he describes a citizen science led effort to catalog marine life living in and around the HMCS Yukon. In 2000, the Yukon was transformed into an artificial reef as part of San Diego’s marine conservation effort.
In 2000, the City of San Diego in collaboration with the San Diego Oceans Foundation (SDOF), purchased, cleaned and sank a 366 foot-long Canadian warship called the HMCS Yukon to create an artificial reef, a task at which has been spectacularly successful. Sitting at the bottom of the San Diego coast, the Yukon attracts dozens of local marine life species and is becoming a revenue-generating attraction for tourist divers from around the world.
When this project started, both the SDOF and the local scientific community were curious to understand the effects of an artificial reef on local fish populations and surrounding marine life. A joint study was undertaken by SDOF and Dr. Ed Parnell of Scripps Institution of Oceanography and released in 2004.¹ Crucial to the study was data gathered by local citizen science divers to generate a baseline of marine life species on the ship.
This year, Ocean Sanctuaries, San Diego’s first citizen science oriented, ocean non-profit is conducting a follow up study to the pioneering work of Dr. Parnell and colleagues. Established in 2014, Ocean Sanctuaries encourages and supports citizen science projects which empower local divers to gather marine data under scientific mentorship and forward our understanding of the oceans. Ocean Sanctuaries currently has three active citizen science projects. ‘Sharks of California’ and the ‘Sevengill Shark ID Project’ are both shark related. The third project is the follow-up study on the Yukon called the Yukon Marine Life Survey.
The data gathered in this project will be mainly photographic. Local divers will photograph specific areas of the ship in quadrats and with transect lines and the data will to be compared with the same areas examined in the 2004 study.
The project plans to use a web-based application for wildlife data management called ‘Wildbook’ for cataloging observations made in the Yukon Marine Life Survey. ‘Wildbook’ was originally designed to identify whale sharks, but will be modified as a multi-species database for use with the Yukon Marine Life Survey.²
Referring to the original Yukon Marine Life Survey of 2004¹, Barbara Lloyd, Founder of Ocean Sanctuaries says, “The Yukon Artificial Reef Monitoring Project (ARMP) was a short-term baseline study of fish transects and photo quadrats. The ARMP project has been gathering data for about a decade now. We at Ocean Sanctuaries strongly believe that a follow up study to the original baseline study can provide the research and fishing communities with valuable marine life data. In addition, unlike the original study, we intend to use photographs to ensure verifiable encounter data. We aim to create a large base of citizen scientists to take the photos and enter the data. This crowd-sourced data will allow us to collaborate between citizens and researchers.”
The current Yukon Marine Life Survey will span at least five years. Once completed, the data will inform scientists of changes to the marine life on the ship enabling California coastal managers to evaluate the impact of artificial reefs on local marine species. Take a video tour of the Yukon and learn more about the project at SciStarter.
1. Ecological Assessment of the HMCS Yukon Artificial Reef
off San Diego, CA, Dr. Ed Parnell, 2004:
2. Wildbook: A Web-based Application for Wildlife Data Management
Keep track of water quality and learn about environmental stewardship with Stream Team.
Looking for more water monitoring projects? We’ve got you covered!
Spencer Towle is a senior at Cate School in Carpinteria. As we walk down to a bioswale on the campus, this San Francisco native with a head of unruly brown hair describes his first year as a member of the Cate School Stream Team, “A senior took us through all the instruments and showed us how to work them, and what we were sampling for. That made Stream Team a lot more real for me. We weren’t just dipping instruments into the water and reading the numbers—I really learned the purpose behind it.”
Joshua Caditz, an environmental lawyer turned science teacher, leads the group and is proud of his band of water-monitoring geeks. “The students for the most part run this watershed monitoring project with the guidance and assistance of Santa Barbara Channelkeeper, and they’re doing an outstanding job. We currently manage the entire watershed except for the summer when Channelkeeper sends in a few interns to take over.” Caditz founded the Cate Stream Team in 2010 with the two-fold objective of conducting a long-term study of water quality in the Carpinteria watershed, and engaging students in a combination of field and laboratory work. He lodged the program under the oversight of the non-profit group Santa Barbara Channelkeeper.
Santa Barbara Channelkeeper operates similar programs to keep tabs on water quality in Ventura, Santa Barbara and Goleta. Jenna Driscoll, Watershed and Marine Program Associate at Santa Barbara Channelkeeper says, “It’s really rewarding to see people connecting with their watershed. When I first started working for Channelkeeper I was shocked to learn how many streams there are in our area. Santa Barbara Channelkeeper is a “watchdog” organization. Often times government agencies do not have the resources to do all the monitoring that they are mandated to do by law. When this is the case, Channelkeeper steps in to fill the monitoring gap.”