Survey Evaluation of Florida’s Freshwater Fisheries Long-Term Monitoring Program
Abstract
:1. Introduction
2. Materials and Methods
2.1. Survey
2.2. Summary and Analysis
3. Results
3.1. The 4-Year and 15-Year Survey Comparison
3.2. The 15-Year Survey Responses
3.2.1. Experience Level
3.2.2. Functional Roles
3.2.3. Future Directions
4. Discussion
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Section | Description |
---|---|
Demographics | Experience level, functional role in agency, region of work |
Field sampling | Extent to which standard protocols are used and referenced, both within and outside the core set of 39 water bodies |
Reasons protocols are not used * | |
Ratings of standard protocols for trawl, electrofish, fish health, and creel sampling * | |
Ratings of program and services, including program efficiency, staff and field support, and online information resources * | |
Data entry, summary, and reporting | Ratings of data entry, QA/QC procedures, queries, summary and analysis tools, reports, and online information resources * |
Data-related issues | |
Extent to which data are shared and data requests tracked | |
Utility of data summary information | |
Importance of different data summary information as related to sportfish populations, fish community structure, creel surveys, fish health, and aquatic plants | |
Selection of important data summary metrics for dissemination, split into broad categories of sportfish (e.g., lake mean total catch rate), fish community (e.g., diversity index), habitat (e.g., list of aquatic species observed), and creel surveys (e.g., total angler effort by species group) | |
Management decision support | Reasons monitoring data are not used in making management decisions * |
Importance of different monitoring data for making management decisions | |
Programmatic views | Level of agreement with 21 statements related to data and reports, sampling protocol, program, needs, and resources |
Additional input | Ratings and rankings of future initiatives (automated summaries and reports, database development, restructured online and electronic resources, trainings, evaluations) |
Open-ended questions for specific trainings needed and additional input |
Future Initiative | All | Experience Level | Functional Role | |||
---|---|---|---|---|---|---|
S | L | FM | FR | HM | ||
Database development | 1 | 2 | 1 | 1 | 1 | 3 |
Automated summary reports | 2 | 1 | 2 | 2 | 2 | 1 |
Annual training on standard protocols | 3 | 3 | 3 | 3 | 3 | 2 |
Standard protocol evaluation | 4 | 4 | 4 | 4 | 4 | 4 |
Updated standard sampling manual | 5 | 6 | 5 | 6 | 5 | 6 |
Reorganized web-based program resources | 6 | 5 | 6 | 5 | 6 | 5 |
Management Metric | All | Experience Level | Functional Role | |||
---|---|---|---|---|---|---|
S | L | FM | FR | HM | ||
Sportfish abundance, size structure, and condition | 1 | 1 | 1 | 1 | 1 | 1 |
Lake-wide plant coverage and composition | 2 | 5 | 2 | 5 | 3 | 2 |
Fish community metrics | 3 | 2 | 4 | 4 | 2 | 3 |
Creel estimates | 4 | 4 | 3 | 2 | 4 | 6 |
Sportfish growth and mortality | 5 | 3 | 5 | 3 | 5 | 4 |
Fish health data | 6 | 6 | 6 | 6 | 6 | 5 |
Comparison | Direction of Change (4-Year to 15-Year) | Test | Test Statistic | df | n4, n15 | p-Value |
---|---|---|---|---|---|---|
Rating | ||||||
Satisfaction of standard sampling protocols | ↑ | Mann–Whitney U | 1171.0 | -- | 36, 55 | <0.001 |
Cost and time efficiency of standard sampling program | ↑ | Mann–Whitney U | 1345.0 | -- | 36, 61 | 0.001 |
Process required to access data | ↑ | Mann–Whitney U | 830.0 | -- | 27, 45 | 0.045 |
Annual use | ||||||
Standard sampling manual | ↑ | Chi-square | 39.8 | 1 | 39, 63 | <0.001 |
Online data entry form for LTM data | ↑ | Chi-square | 5.6 | 1 | 38, 58 | 0.018 |
Online data entry form for other (i.e., not LTM) data | ↑ | Chi-square | 6.1 | 1 | 35, 58 | 0.014 |
Retrieve LTM data from database | ↑ | Chi-square | 23.5 | 1 | 38, 58 | <0.001 |
Retrieve other (i.e., not LTM) data from database | ↑ | Chi-square | 13.6 | 1 | 34, 58 | <0.001 |
Type of management decisions made by respondents | ||||||
Habitat management | ↑ | Chi-square | 21.0 | 1 | 39, 34 | <0.001 |
Reasons for using other (i.e., not LTM) data | ||||||
Non-LTM data sources more useful for making management decisions | ↓ | Fisher Exact | 0.011 | -- | 36, 40 | 0.022 |
Category | Program Component or Data Type | Rating | Mann–Whitney U | nS, nL | ||
---|---|---|---|---|---|---|
S | L | U | p-Value | |||
Field protocols | Overall | 5 | 4 | 312.5 | 0.065 | 15, 19 |
Field logistics | Overall | 4 | 5 | N | N | 17, 28 |
Individual sampling protocols | All gears | 4 | 4 | N | N | 13–26, 20–28 |
Habitat | 4 | 4 | N | N | 24, 32 | |
Fish health | 4 | 4 | N | N | 23, 30 | |
Creel | 4 | 4 | N | N | 21, 24 | |
Program attributes | Efficiency | 4 | 4 | N | N | 28, 33 |
Staff support/assistance | 5 | 5 | N | N | 27–28, 29–31 | |
Sampling manual | 4 | 4 | N | N | 24, 30 | |
Online resources | 4 | 4 | N | N | 19–23, 21–24 | |
Importance | Creel data | 5 | 4 | N | N | 11, 20 |
Fish community data | 4 | 3 | N | N | 11, 19 | |
Habitat maps and estimates | 5 | 4 | N | N | 12, 21 | |
Sportfish catch data | 5 | 4 | 218.5 | 0.065 | 11, 20 | |
Sportfish age data | 4 | 4 | N | N | 11, 19 | |
Fish health data | 3 | 3 | N | N | 10, 19 |
Statement | Kruskal–Wallis | Mann–Whitney U | Group Relationships | nFM, nFR, nHM | |||
---|---|---|---|---|---|---|---|
Chi-Square | df | p-Value | U | p-Value | |||
LTM data can be used to provide evidence for a management action | 7.413 | 2 | 0.025 | 222 | 0.009 | FR > HM | 22, 36, 13 |
There are other data that should be prioritized over what we collect now | 5.606 | 2 | 0.061 | 406.5 | 0.067 | FR < HM | 21, 37, 14 |
The sample size recommendations are adequate for my needs | 5.027 | 2 | 0.081 | 180.5 | 0.048 | FM > HM | 22, 37, 13 |
244 | 0.041 | FR > HM | |||||
I know where to find LTM program resources and information that I need | 17.184 | 2 | <0.001 | 129.5 | 0.021 | FM > HM | 22, 36, 14 |
185.5 | <0.001 | FR > HM | |||||
We are provided enough LTM staff help to complete our LTM sampling each year | 5.834 | 2 | 0.054 | 265 | 0.029 | FR > HM | 22, 37, 14 |
We should have annual training or refresher courses to stay current on LTM protocols | 5.199 | 2 | 0.074 | 528 | 0.030 | FR > FM | 22, 37, 14 |
Program Component | Main-Effect Test | Pairwise Tests | nFM, nFR, nHM | |||
---|---|---|---|---|---|---|
Test | Test Statistic | p-Value | Differences | Evidence | ||
Annual use | ||||||
Standardized sampling manual for LTM sampling activities | FH | <0.001 | 0.004 | FM > HM < FR | S | 20, 35, 8 |
Standardized sampling manual for other (i.e., non-LTM) sampling activities | FH | <0.001 | <0.001 | FR < FM > HM FR > HM | S W | 20, 35, 8 |
Standardized sampling protocol for LTM sportfish sampling | CHI | 6.3 (2) | 0.043 | FM > HM FM > FR | M W | 20, 35, 8 |
Standardized sampling protocol for other (i.e., non-LTM) sportfish sampling | FH | <0.001 | <0.001 | FR < FM > HM FR > HM | S M | 20, 35, 8 |
Standardized sampling for LTM fish community sampling | FH | <0.001 | 0.002 | FM > HM FR > HM | S M | 20, 35, 8 |
Standardized sampling for other (i.e., non-LTM) fish community sampling | FH | <0.001 | <0.001 | FR < FM > HM FR > HM | S W | 20, 35, 8 |
Standardized sampling for LTM aquatic plant sampling | FH | 0.002 | 0.024 | FM < HM > FR | M | 20, 35, 8 |
Rating | ||||||
Vegetation mapping protocol | KW | 4.684 (2) | 0.096 | FM < FR | W | 13, 18, 8 |
Importance for making management decisions | ||||||
Creel data | MW | 47.5 | 0.007 | FM > HM * | S | 18, 7 |
Priority | Category | Metric | Description |
---|---|---|---|
High (≥ 70%) | Sportfish | Abundance | Lake mean total catch rate |
Size structure | Length frequency of sportfish | ||
Condition | Mean relative weight of sportfish | ||
Growth | Mean length at age of sportfish | ||
Temporal trend | 5-year lake trends of sportfish metrics | ||
Fish community | Richness | Number of species observed in fish community | |
Creel | Catch rate | Total angler catch rate by species group | |
Harvest rate | Total angler harvest rate by species group | ||
Effort | Total angler effort by species group | ||
Temporal trend | 5-year lake trends in creel metrics | ||
Habitat | Presence | List of aquatic species observed | |
Volume/area coverage | Percent area coverage (PAC) and percent volume infested (PVI) estimates for submersed species | ||
Spatial distribution | Plant distribution map by species | ||
Moderate (50–69%) | Sportfish | Abundance | Lake mean catch rate by size group |
Statewide comparison (2 metrics) | Statewide average total and size-specific catch rates | ||
Age structure | Mean number per age | ||
Size structure | Proportional size distribution (PSD) | ||
Fish community | Community structure (3 metrics) | Percent composition by number/weight for species and species groups; mean catch rate by number for each species | |
Temporal trend | 5-year lake trends of fish community metrics | ||
Presence (2 metrics) | List of species observed (current year, all years of record) | ||
Diversity | Diversity index | ||
Creel | Catch | Total angler catch by species group (standardized by days and lake size) | |
Statewide comparison (2 metrics) | Statewide average angler catch/harvest by species group (standardized by days and lake size) | ||
Habitat | Community structure | Percent occurrence of aquatic plant species | |
Temporal trend | 5-year lake trends in aquatic habitat metrics |
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Bonvechio, K.I.; Paudyal, R.; Crandall, C.; Carlson, A.K. Survey Evaluation of Florida’s Freshwater Fisheries Long-Term Monitoring Program. Fishes 2023, 8, 216. https://doi.org/10.3390/fishes8040216
Bonvechio KI, Paudyal R, Crandall C, Carlson AK. Survey Evaluation of Florida’s Freshwater Fisheries Long-Term Monitoring Program. Fishes. 2023; 8(4):216. https://doi.org/10.3390/fishes8040216
Chicago/Turabian StyleBonvechio, Kimberly I., Ramesh Paudyal, Chelsey Crandall, and Andrew K. Carlson. 2023. "Survey Evaluation of Florida’s Freshwater Fisheries Long-Term Monitoring Program" Fishes 8, no. 4: 216. https://doi.org/10.3390/fishes8040216
APA StyleBonvechio, K. I., Paudyal, R., Crandall, C., & Carlson, A. K. (2023). Survey Evaluation of Florida’s Freshwater Fisheries Long-Term Monitoring Program. Fishes, 8(4), 216. https://doi.org/10.3390/fishes8040216