DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Community size-spectra applied to recreational freshwater fisheries in Puerto Rican reservoirs

Journal Article · · Fisheries Management and Ecology
DOI: https://doi.org/10.1111/fme.12671 · OSTI ID:2324031
ORCiD logo [1];  [2];  [3]; ORCiD logo [4];  [1];  [5]
  1. West Virginia Univ., Morgantown, WV (United States)
  2. Puerto Rico Dept. of Natural and Environmental Resources, San Juan, PR (United States)
  3. Pesca, Playa y Ambiente (Fish, Beach, and Environment), San Juan, PR (United States)
  4. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
  5. US Fish and Wildlife Service, San Juan, PR (United States)

We developed a management framework based on community size-spectra (CSS) to establish targets to maximize desirable gamefish. We evaluated the influence of relative abundance of fish functional groups and watershed characteristics on the slope of the CSS or ecological efficiency. Both ecological efficiency and capacity were strongly influenced by relative abundance of fish functional groups and the degree of water level variation. Steeper slopes indicated overfished gamefish populations, whereas flatter slopes indicated systems dominated by undesirable invasive large-bodied low trophic position fish. We hypothesize that a desirable fishery would have a target range of CSS slopes that provides a deterministic community-based framework of predictable responses to environmental and food web changes that can be used to evaluate outcomes of management actions and a means to assess annual progress toward desirable conditions.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
2324031
Journal Information:
Fisheries Management and Ecology, Journal Name: Fisheries Management and Ecology Journal Issue: 2 Vol. 31; ISSN 0969-997X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (41)

Comparison of Gill Nets and Fixed‐Frame Trawls for Sampling Threadfin Shad in Tropical Reservoirs journal July 2012
Using size-based indicators to evaluate the ecosystem effects of fishing journal January 2005
Testing and recommending methods for fitting size spectra to data journal October 2016
Experimental strategies to assess the biological ramifications of multiple drivers of global ocean change-A review journal March 2018
Using indicators for evaluating, comparing, and communicating the ecological status of exploited marine ecosystems. 1. The IndiSeas project journal December 2009
Ecological impacts of small hydropower plants on headwater stream fish: from individual to community effects journal December 2014
Evaluation of the Ecological Compatibility of Butterfly Peacock Cichlids and Largemouth Bass in Puerto Rico Reservoirs journal March 2006
Resistance of the size structure of the fish community to ecological perturbations in a large river ecosystem journal October 2013
Phytoplankton community response to reservoir aging, 1968–92 journal March 1997
Relationship Between Largemouth Bass Recruitment and Water Level Dynamics in a Puerto Rico Reservoir journal March 2005
Fish size spectrum as a complementary biomonitoring approach of freshwater ecosystems journal February 2023
Perspective: Developing Flow Policies to Balance the Water Needs of Humans and Wetlands Requires a Landscape Scale Approach Inclusive of Future Scenarios and Multiple Timescales journal July 2019
Changes in the North Sea fish community: evidence of indirect effects of fishing? journal January 2005
Spawning Season and Nest Fidelity of Largemouth Bass in a Tropical Reservoir journal November 2004
Invasive Blue Catfish in the Chesapeake Bay Region: A Case Study of Competing Management Objectives journal January 2021
Ecosystem models of Lake Victoria (East Africa): Can Ecopath with Ecosim and Atlantis predict similar policy outcomes? journal December 2019
Evaluation of Proposed Speckled Peacock Bass Cichla temensis Introduction to Puerto Rico journal August 2017
Spatial Extent and Dynamics of Dam Impacts on Tropical Island Freshwater Fish Assemblages journal March 2013
Relationships between body size and abundance in ecology journal June 2007
Shift in a Large River Fish Assemblage: Body-Size and Trophic Structure Dynamics journal April 2015
Size-spectra as indicators of the effects of fishing on coral reef fish assemblages journal January 2005
Effects of fish predation on density and size spectra of prey fish communities in lakes journal April 2016
A Bioenergetics‐Based Approach to Explain Largemouth Bass Size in Tropical Reservoirs journal November 2006
Body-size distributions and size-spectra: universal indicators of ecological status? journal May 2010
Size spectra of lake fish assemblages: responses along gradients of general environmental factors and intensity of lake-use journal July 2011
Fish abundance with no fishing: predictions based on macroecological theory journal June 2004
Fish community size structure of small lakes: the role of lake size, biodiversity and disturbance journal April 2015
Factors Influencing Tropical Island Freshwater Fishes: Species, Status, and Management Implications in Puerto Rico journal November 2009
Indicators to support an ecosystem approach to fisheries journal September 2005
Empirical correspondence between trophic transfer efficiency in freshwater food webs and the slope of their size spectra journal June 2018
Evaluating targets and trade‐offs among fisheries and conservation objectives using a multispecies size spectrum model journal March 2014
Chronological age and reservoir characteristics as predictors of trait composition in Neotropical reservoir fish assemblages journal November 2019
Diet overlap between native bigmouth sleepers (Gobiomorus dormitor) and introduced predatory fishes in a Puerto Rico reservoir journal May 2004
Balanced exploitation and coexistence of interacting, size‐structured, fish species journal October 2014
Size spectra and other size-related variables of river fish communities: systematic changes along the altitudinal gradient on pristine Andean streams journal July 2018
Ecosystem ecology: size-based constraints on the pyramids of life journal July 2013
An island invaded by exotics: a review of freshwater fish in Puerto Rico journal January 2020
A multi-model approach to understanding the role of Pacific sardine in the California Current food web journal May 2019
Steeper biomass spectra of demersal fish communities after trawler exclusion in Sicily journal January 2009
Ecosystem size determines food-chain length in lakes journal June 2000
Accounting for the bin structure of data removes bias when fitting size spectra journal February 2020