Howard Jelks
Howard Jelks is a retired Research Fish Biologist at the USGS Wetland and Aquatic Research Center.
Until his retirement in 2022, Howard Jelks was responsible for assisting the in planning, organizing, coordinating, and reporting research on faunal surveys, distributional analyses, species biology, experimental field and laboratory ecology, limiting factors, and behavior of rare, threatened, and endangered freshwater fishes of the southeastern United States. He designed studies, collected and processed samples, compiled, and statistically analyzed data, and assisted with interpretation of the results and preparation of written research findings as publishable additions to fisheries science and technical presentations at meetings. He assisted in study design and analysis on a survey of cryptic fish at Buck Island National Monument, St. Croix, VI, completed a book on the life history and risk assessment of the black carp. Jelks has been a leader in the research and recovery effort for the federally endangered Okaloosa darter at Eglin Air Force Base over the past decade. He led in coordinating and drafting the 1998 Revised Recovery Plan for the Okaloosa darter. Jelks is completing a book on the Fishes of Eglin Air Force Base which details the distribution, life history, and identifying characteristics of the species that inhabit those waters. He regularly participates in meetings at Eglin to help guide management of aquatic systems and their upland watersheds. Jelks collaborated with Frank Jordan, of Loyola University New Orleans, and Robert Dorazio, USGS, in developing removal sampling methods and statistical analyses that permit the simultaneous estimation of the abundance and detection of darters at multiple sites across Eglin. These estimates will contribute toward the assessment of the Okaloosa darter. Jelks has also participated in multi-species efforts to assess imperiled aquatic fauna both in the southeastern U.S. and throughout North America.
Science and Products
Use of strong habitat–abundance relationships in assessing population status of cryptic fishes: An example using the Harlequin Darter Use of strong habitat–abundance relationships in assessing population status of cryptic fishes: An example using the Harlequin Darter
Eradication of two non-native cichlid fishes in Miami, Florida (USA) Eradication of two non-native cichlid fishes in Miami, Florida (USA)
Resolving the status of the genera Gastrophysus and Geneion in the family Tetraodontidae (Teleostei: Tetraodontiformes) Resolving the status of the genera Gastrophysus and Geneion in the family Tetraodontidae (Teleostei: Tetraodontiformes)
Stream fish colonization but not persistence varies regionally across a large North American river basin Stream fish colonization but not persistence varies regionally across a large North American river basin
Characterizing the early life history of an imperiled freshwater mussel (Ptychobranchus jonesi) with host-fish determination and fecundity estimation Characterizing the early life history of an imperiled freshwater mussel (Ptychobranchus jonesi) with host-fish determination and fecundity estimation
Response of imperiled Okaloosa darters to stream restoration Response of imperiled Okaloosa darters to stream restoration
Book review: Black bass diversity: Multidisciplinary science for conservation Book review: Black bass diversity: Multidisciplinary science for conservation
Evaluating the piscicide rotenone as an option for eradication of invasive Mozambique tilapia in a Hawaiian brackish-water wetland complex Evaluating the piscicide rotenone as an option for eradication of invasive Mozambique tilapia in a Hawaiian brackish-water wetland complex
Marine and inland fishes of St. Croix, U. S. Virgin Islands: an annotated checklist Marine and inland fishes of St. Croix, U. S. Virgin Islands: an annotated checklist
Movement and longevity of imperiled Okaloosa Darters (Etheostoma okaloosae) Movement and longevity of imperiled Okaloosa Darters (Etheostoma okaloosae)
Discovery of South American suckermouth armored catfishes (Loricariidae, Pterygoplichthys spp.) in the Santa Fe River drainage, Suwannee River basin, USA Discovery of South American suckermouth armored catfishes (Loricariidae, Pterygoplichthys spp.) in the Santa Fe River drainage, Suwannee River basin, USA
Variation in reproductive life history traits between two populations of Blackbanded Darters (Percina nigrofasciata) Variation in reproductive life history traits between two populations of Blackbanded Darters (Percina nigrofasciata)
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Population Monitoring of the Federally Threatened Okaloosa Darter at Eglin Air Force Base
American Fisheries Society Imperiled Freshwater and Diadromous Fishes of North America
WaterSMART: Apalachicola/Chattahoochee/ Flint River (ACF) Basin
American Fisheries Society List of Freshwater Snails from Canada and the United States
American Fisheries Society Crayfish of the United States and Canada
Removing threats before they spread: Eradication of two non-native fishes in Miami, Florida (USA) Removing threats before they spread: Eradication of two non-native fishes in Miami, Florida (USA)
Annotated checklist of marine and inland fishes of St. Croix, U.S. Virgin Islands Annotated checklist of marine and inland fishes of St. Croix, U.S. Virgin Islands
Characterizing the early life history of an imperiled freshwater mussel (Ptychobranchus jonesi) Characterizing the early life history of an imperiled freshwater mussel (Ptychobranchus jonesi)
Science and Products
Use of strong habitat–abundance relationships in assessing population status of cryptic fishes: An example using the Harlequin Darter Use of strong habitat–abundance relationships in assessing population status of cryptic fishes: An example using the Harlequin Darter
Eradication of two non-native cichlid fishes in Miami, Florida (USA) Eradication of two non-native cichlid fishes in Miami, Florida (USA)
Resolving the status of the genera Gastrophysus and Geneion in the family Tetraodontidae (Teleostei: Tetraodontiformes) Resolving the status of the genera Gastrophysus and Geneion in the family Tetraodontidae (Teleostei: Tetraodontiformes)
Stream fish colonization but not persistence varies regionally across a large North American river basin Stream fish colonization but not persistence varies regionally across a large North American river basin
Characterizing the early life history of an imperiled freshwater mussel (Ptychobranchus jonesi) with host-fish determination and fecundity estimation Characterizing the early life history of an imperiled freshwater mussel (Ptychobranchus jonesi) with host-fish determination and fecundity estimation
Response of imperiled Okaloosa darters to stream restoration Response of imperiled Okaloosa darters to stream restoration
Book review: Black bass diversity: Multidisciplinary science for conservation Book review: Black bass diversity: Multidisciplinary science for conservation
Evaluating the piscicide rotenone as an option for eradication of invasive Mozambique tilapia in a Hawaiian brackish-water wetland complex Evaluating the piscicide rotenone as an option for eradication of invasive Mozambique tilapia in a Hawaiian brackish-water wetland complex
Marine and inland fishes of St. Croix, U. S. Virgin Islands: an annotated checklist Marine and inland fishes of St. Croix, U. S. Virgin Islands: an annotated checklist
Movement and longevity of imperiled Okaloosa Darters (Etheostoma okaloosae) Movement and longevity of imperiled Okaloosa Darters (Etheostoma okaloosae)
Discovery of South American suckermouth armored catfishes (Loricariidae, Pterygoplichthys spp.) in the Santa Fe River drainage, Suwannee River basin, USA Discovery of South American suckermouth armored catfishes (Loricariidae, Pterygoplichthys spp.) in the Santa Fe River drainage, Suwannee River basin, USA
Variation in reproductive life history traits between two populations of Blackbanded Darters (Percina nigrofasciata) Variation in reproductive life history traits between two populations of Blackbanded Darters (Percina nigrofasciata)
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.