Philometra margolisi n.sp. (Nematoda: Philometridae) from the gonads of the red grouper, Epinephelus morio (Pisces: Serranidae), in Mexico

1995 ◽  
Vol 52 (S1) ◽  
pp. 161-165 ◽  
Author(s):  
František Moravec ◽  
Victor M. Vidal-Martínez ◽  
Leopoldina Aguirre-Macedo
Keyword(s):  
Body Shape ◽  
Nematode Species ◽  
Outer Circle ◽  
Epinephelus Morio ◽  
Red Grouper ◽  
Gravid Females ◽  
Lateral Papilla ◽  
Shape And Size

A new nematode species, Philometra margolisi n.sp., is described from the gonads of the serranid fish Epinephelus morio from Mexico (localities Telchac, Chuburna, Progreso, and Rio Lagartos, Yucatan). It is characterized mainly by long (0.432–0.468 mm) and slender spicules and a simple gubernaculum (length 0.084–0.093 mm) in the male and by body shape and size (length 65–85 mm), arrangement and number of small cephalic papillae (eight papillae in an outer circle and four in an inner one), structure and length (1.07–1.18 mm) of the esophagus, long ovaries, and the presence of a pair of small lateral papilla-like projections on the elongate caudal end in gravid females.

New philometrids (Nematoda, Philometridae) from head tissues of two serranid fishes (Epinephelus morio and Mycteroperca microlepis) off Florida, northern Gulf of Mexico

2010 ◽  
Vol 55 (4) ◽  
Author(s):  
František Moravec ◽  
Micah Bakenhaster ◽  
Emma Fajer-Avila
Keyword(s):  
New Species ◽  
Gulf Of Mexico ◽  
Northern Gulf Of Mexico ◽  
Mouth Cavity ◽  
Epinephelus Morio ◽  
Red Grouper ◽  
Subcutaneous Tissues ◽  
Gravid Females ◽  
Microscopy Examination ◽  
Mycteroperca Microlepis

AbstractA new species of nematode, Philometra morii sp. nov. (Philometridae), is described from males and gravid females collected from the mouth cavity of the red grouper, Epinephelus morio (Valenciennes) (Serranidae, Perciformes), from the northen Gulf of Mexico, off Florida, USA. The new species is characterized mainly by the length of spicules (84–90 and 72–87 μm) and the length (54 μm) and structure of the gubernaculum in the male, and by the presence of three large oesophageal teeth protruding from the mouth, the number and arrangement of small cephalic papillae (8 papillae in 4 pairs of external circle and 6 single papillae of internal circle), the length (1.09–1.50 mm) and structure of the oesophagus and two large papilla-like caudal projections, and by the length of their bodies (19.34–30.07 mm). Philometra morii is the third species of this genus reported from E. morio in the Gulf of Mexico, differing from the two previously described species, in addition to morphological features, by the site of infection in this host (mouth cavity and sinuses vs oculo-orbits or gonads). From the same region (northern Gulf of Mexico, off Florida), gravid females of Philometra Costa, 1845, morphologically and biometrically similar to those of P. morii, were found in the subcutaneous tissues and sinuses of the head of another serranid fish (gag), Mycteroperca microlepis (Good et Bean). Although their conspecificity with P. morii cannot be excluded, they have been designated as Philometra sp. until conspecific males are discovered and described. Based on light and scanning electron microscopy examination (latter used only for females), both these forms are described.

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

Body Shape and Size Concerns and Diet Culture in Urban Adolescents Attending Suburban High Schools

2016 ◽  
Vol 58 (2) ◽  
pp. S63
Author(s):  
Alice Woolverton ◽  
Allegra L. Spalding ◽  
Natasha K. Warikoo ◽  
Erin C. Dunn ◽  
Tracy K. Richmond
Keyword(s):  
High Schools ◽  
Body Shape ◽  
Urban Adolescents ◽  
Suburban High Schools ◽  
Shape And Size

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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