Recovery Plan Ad Hoc Report results

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Plan Title Plan Stage Plan Lead Region (FWS) Plan Lead Office (FWS) Species Common Name Species Scientific Name Action Priority Action Number Action Description Action Status Estimated Initiation Date Estimated Completion Date Action Lead Agencies Responsible Parties Work Types Labor Types Comments Implementation Activity Number Implementation Activity Description Implementation Activity Status Implementation Activity Estimated Initiation Date Implementation Activity Estimated Completion Date Implementation Activity Labor Types Implementation Activity Work Types Implementation Activity Responsible Parties Implementation Activity Comments Implementation Activity Species
Louisiana Pearlshell F 4 Louisiana Ecological Services Field Office (337) 291-3100 Louisiana pearlshell Margaritifera hembeli 1 1.1 Develop and implement management plan Partially Complete Prior to FY 1995 FY 2020 Other U.S. Forest Service Management: General Internal Technical Assistance, Internal Field Assistance, Internal Administrative The Revised Land and Management Resources Plan for KNF contains management guidelines for the LA pearlshell. Development of a drought contingency plan has been initiated, but not yet finalized. A study has been funded to determine the level of threat from fluctuations in hydrological flow and identify areas of susceptibility to drought. A propagation and reintroduction plan is currently been initiated. Individuals are currently being propagated and headstarted for experimental release in 2018. A standardized monitoring plan has been developed and is being implemented.Habitat threats are being identified and addressed when possible, including a PFW project to restore better stream flow at a road crossing.
Louisiana Pearlshell F 4 Louisiana Ecological Services Field Office (337) 291-3100 Louisiana pearlshell Margaritifera hembeli 1 1.2 Conduct population surveys Ongoing Current FY 2006 FY 2023 U.S. Forest Service, Louisiana Department of Wildlife and Fisheries , Region 4 - Ecological Services, Natchitoches National Fish Hatchery U.S. Forest Service, Louisiana Department of Wildlife and Fisheries , Region 4 - Ecological Services, Natchitoches National Fish Hatchery Research: Population Surveys, Management: Population Monitoring Internal Technical Assistance, Internal Field Assistance Range-wide surveys of the Bayou Rigolette watershed and the Bayou Boeuf watershed were completed in 2009. Those surveys were conducted on private and public lands by personnel from the LDWF and the USFS, in coordination with the Service. Survey reports for private land were prepared by LDWF and for public land by the USFS. Data analysis was completed in 2014 by Quantitative Ecological Services, Inc under a grant from the LDWF. In addition a long-term management plan was developed and should be applied consistently across the range by all who monitor the species. Field training on implementation of standardized long-term monitoring scheduled for 2015. A database to store the data and assist in analysis has been developed and is housed in LNHP. Surveys and monitroing will be ongoing until suffcient data exists for poulation trend analysis. In FY17, reporting as ongoing.
Louisiana Pearlshell F 4 Louisiana Ecological Services Field Office (337) 291-3100 Louisiana pearlshell Margaritifera hembeli 1 2 Life history research Ongoing Current FY 2005 FY 2022 Other U.S. Forest Service, Louisiana Department of Wildlife and Fisheries , Region 4 - Ecological Services, Natchitoches National Fish Hatchery Management: Stranding Response, Management: Propagation, Management: Reintroduction, Research, Research: General, Research: Habitat Status, Research: Genetics Internal Technical Assistance In November 2009, Dr. Kevin J. Roe of the Department of Natural Resource Ecology and Management, Iowa State University issued Conservation Genetics of the Freshwater Mussel Margaritifera hembeli (Bivalvia: Margaritiferidae), Final Report, funded by the Service. That document contained the final results of a study conducted for the Service's NNFH to document population genetic structure, the extent of gene flow, and historical connections between LA pearlshell populations. Results showed that mussel populations are not entirely panmictic (where mating is entirely random) nor are populations completely isolated.were delayed. In 2011 - current, NNFH conducting species life history resarch. The reproductive timing is documented to be once annually in the February to April timeframe, possibly correlated with average water temperature (mainly in March).In 2016, NNFH, assisted by ES, USFS, LNHP, Booker Fowler, LDWF was able to identify the pickerel as a suitable host fish species for the Louisiana pearlshell. This was confirmed by NNFH's host fish research in 2018. Confirmation of suitable host fish is measured by the successful infestation and encystment of the fish with La pearlshell glochidia, metaphorphosis of glochidia into viable transformers (very young offspring) that release from the host fish. Research into this species life history is ongoing to provide information for important data gaps.
Louisiana Pearlshell F 4 Louisiana Ecological Services Field Office (337) 291-3100 Louisiana pearlshell Margaritifera hembeli 2 3.1 Feasibility of reintroductions Ongoing Current FY 2019 FY 2021 U.S. Forest Service, Louisiana Department of Wildlife and Fisheries , Region 4 - Ecological Services, Other, Natchitoches National Fish Hatchery U.S. Forest Service, Louisiana Department of Wildlife and Fisheries , Region 4 - Ecological Services, Region 4 - Fisheries Management: Propagation Internal Technical Assistance, Internal Field Assistance In April 2016, the first Louisiana pearlshells were produced in the hatchery setting. They were transerred to the State of Alabama due to their experience in headstarting mussels. They will be returned to Louisiana for experimental reintroduction in 2019 at a location to be determined on USFS land based on information in the propagation and reintroduction plan and the genetics management plan. The metric for success of reintroductions will be survival of the propagated, headstarted and reintroduced mussels and evidence of their reproduction in the wild via observation of juvenile recruitment and observation of mulit-age structure of the bed. Younger La pearlshell mussels are difficult to detect in the wild due to the small size and burying habitats of juveniles.
Louisiana Pearlshell F 4 Louisiana Ecological Services Field Office (337) 291-3100 Louisiana pearlshell Margaritifera hembeli 2 3.2 Develop method for reintroductions Ongoing Current U.S. Forest Service, Louisiana Department of Wildlife and Fisheries , Region 4 - Ecological Services, Natchitoches National Fish Hatchery U.S. Forest Service, Louisiana Department of Wildlife and Fisheries , Region 4 - Ecological Services, Region 4 - Fisheries Research: Propagation Labor type not yet selected In 2016, successful metamorphosis of Louisiana pearlshells were conducted in the hatchery. The pickerel was determined to be the host fish species. Louisiana does not have current methodolgy to rear the juveniles in captivity, thus the new juveniles were transferred to the State of Alabama for headstarting. Surviving mussels will be returned to Louisiana for experimental reitroduction in 2018 at a location to be determined. Currently the ES office is working with partners to develop a propagation and reintroduction plan for the species. The USFWS Conservation Genetics Lab is currently developing a genetics management plan for the species. The method of reintroduction will be evaluated upon the first experimental reintroduction in the spring or summer of 2018.
Louisiana Pearlshell F 4 Louisiana Ecological Services Field Office (337) 291-3100 Louisiana pearlshell Margaritifera hembeli 2 3.3 Reintroduce species Planned Other U.S. Forest Service, Louisiana Department of Wildlife and Fisheries , Region 4 - Ecological Services, Region 4 - Fisheries Management: Propagation Labor type not yet selected No reintroductions have been accomplished. Experimental reintroductions of headstarted, 2 year old juveniles are planned in 2018 at a location yet to be determined on USFS.