Effects of habitat manipulation by red grouper, Epinephelus morio, on faunal communities associated with excavations in Florida Bay

2017 ◽  
Vol 93 (4) ◽  
pp. 961-983 ◽  
Author(s):  
Robert D Ellis ◽  
Felicia C Coleman ◽  
Christopher C Koenig
Keyword(s):  
Florida Bay ◽  
Habitat Manipulation ◽  
Epinephelus Morio ◽  
Red Grouper ◽  
Faunal Communities

scholarly journals Red Grouper (Epinephelus morio) Shape Faunal Communities via Multiple Ecological Pathways

Diversity ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 89 ◽  
Author(s):  
Robert D. Ellis
Keyword(s):  
Florida Bay ◽  
Reef Fishes ◽  
Strong Interactions ◽  
Ecological Communities ◽  
Colonizing Species ◽  
Positive Effects ◽  
Juvenile Coral ◽  
Epinephelus Morio ◽  
Red Grouper ◽  
Faunal Communities

Organisms that modify the availability of abiotic resources for other species can alter the structure and function of ecological communities through multiple pathways. In Florida Bay, red grouper (Epinephelus morio) engineer habitats by excavating sediment and detritus from karst solution holes and are also predators that consume a variety of benthic crustaceans and fish, some of which colonize engineered habitats. The effect of red grouper on these communities is complex as colonizing species interact with red grouper in different ways, including both direct (e.g., predator–prey) and indirect interactions. Here, I present the results of an experiment designed to test the direct effects of red grouper on faunal communities associated with Florida Bay solution holes by excluding red grouper from solution holes for four weeks. Red grouper presence generally had positive effects on the abundance, richness, and diversity of faunal communities associated with engineered habitats. Few strong interactions were observed between red grouper and colonizing species, mainly juvenile coral reef fishes. These results suggest that by acting as both a predator and habitat engineer, red grouper shape unique communities, distinct from those of surrounding areas, and influence the composition of communities associated with manipulated habitats.

Paracapillaria epinepheli n. sp. (Nematoda: Capillariidae) from the red grouper Epinephelus morio (Pisces) from Mexico

1996 ◽  
Vol 33 (2) ◽  
pp. 149-153 ◽  
Author(s):  
František Moravec ◽  
Edgar Mendoza-Franco ◽  
Joaquin Vargas-Vázquez
Keyword(s):  
Epinephelus Morio ◽  
Red Grouper

Historical biomass, fishing mortality, and recruitment trends of the Campeche Bank red grouper (Epinephelus morio)

2005 ◽  
Vol 71 (3) ◽  
pp. 267-277 ◽  
Author(s):  
Enrique Giménez-Hurtado ◽  
Raúl Coyula-Pérez-Puelles ◽  
Salvador E. Lluch-Cota ◽  
Abel A. González-Yañez ◽  
Víctor Moreno-García ◽  
...  
Keyword(s):  
Fishing Mortality ◽  
Epinephelus Morio ◽  
Red Grouper

scholarly journals Modeling Discards in Stock Assessments: Red Grouper Epinephelus morio in the U.S. Gulf of Mexico

Fishes ◽  
2021 ◽  
Vol 7 (1) ◽  
pp. 7
Author(s):  
Kyle W. Shertzer ◽  
Erik H. Williams ◽  
Skyler R. Sagarese
Keyword(s):  
Gulf Of Mexico ◽  
Stock Assessment ◽  
Time Varying ◽  
Discard Mortality ◽  
Stock Assessments ◽  
Epinephelus Morio ◽  
Red Grouper ◽  
Management Advice ◽  
The U.S

To be as accurate as possible, stock assessments should account for discard mortality in fisheries if it occurs. Three common approaches to modeling discards in assessments are to lump dead discards with landings, treat dead discards as their own fleet, or link them conversely with landings through use of a retention function. The first approach (lumping) implicitly assumes that the selectivity of landings applies also to discards. In many cases, that assumption is false, for example, if discards comprise smaller fish than do landings. The latter two approaches avoid the assumption by modeling discards explicitly with their own selectivity pattern. Here, we examine these approaches to modeling discards. Using a simulation study, we demonstrate that the two approaches to modeling discards explicitly can provide identical results under both static and time-varying conditions. Then, using a stock assessment case study of red grouper Epinephelus morio in the U.S. Gulf of Mexico, we demonstrate that in practice the approaches to modeling discards can provide different outcomes, with implications for the resultant management advice. We conclude by comparing and contrasting the different approaches, calling for more research to elucidate which approach is most suitable under various sources of error typically encountered in discard data.

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