WSP01039

• File Number: 8240.300.10
• Description: San Juan River Recovery Program - Program Organization and Mission
• State: CO
• Basin: San Juan/Dolores
• Water Division: 7
• Date: 5/25/1999
• Author: SJRRIP
• Title: San Juan River Basin Recovery Implementation Program Annual Budget and Work Plan Fiscal Year 1999
• Water Supply Pro - Doc Type: Biological Opinion

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San Juan River Larval Fish Passive Drift-netting
Fiscal Year 1999 Project Proposal

Principal Investigators: Steven P. Platania
Division of Fishes - Museum of Southwestern Biology,
University of New Mexico, Albuquerque, NM 87131
[phone] [e-mail]

and

Principal Investigators: David L. Propst
Conservation Services Program, New Mexico Department of Game and Fish,
State Capitol, Villagra Bldg, P.O. Box 25112, Santa Fe, NM 87504
[phone] [e-mail]

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Studv Area:

The two drift-netting stations for this study will be the San Juan River between RM 128 and
Mexican Hat (RM 53). If adult Colorado pikeminnow are tracked to presumed spawning bars,
we will establish study sites immediately downstream of those areas. In 1998, that locality was
near RM 167. Under this scope of this project, we do not anticipate making any collections in
the reach of the San Juan River under the jurisdiction of the National Park Service.

Collections:

All fish specimens collected will be sorted, identified and preserved for curation in the Division
of Fishes, Museum of Southwestern Biology (MSB), Department of Biology, at the University
of New Mexico.

Backlrround:

Beginning in spring 1995, personnel from the Division of Fishes, Museum of Southwestern
Biology (MSB), at the University of New Mexico assumed responsibility for the San Juan River
larval fish passive drift-netting study. This project, formerly conducted by the Utah Division
of Wildlife Resources, continued with only minor changes in sampling protocol. Data collected
from this research activity provided several discrete types of information on the fishes of the San
Juan River. Data that can be obtained on the endangered fishes of the river include determining
approximate spawning period, identifying approximate location of spawning sites, and assessing
effects of annual hydrology (and temperature) on their reproductive activities. Similar data
could also be obtained for other members of the ichthyofaunal community and contrasted with
previously drift-net sampling to assess the effects of that year's flow regime on fish
reproduction. Samples collected during this research program were and will continue to be
processed and curated by Fish Division personnel at the University of New Mexico.

Work Plan FY99.wpd

5

Budget and Work Plan FY99

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