family gerreidae
DESCRIPTION
Family Gerreidae. Mojarras Common species: Spotfin Mojarra ( Eucinostomus argenteus ). Gerreidae Characteristics. Highly protrusible jaw, compressed silvery body Use mouth for feeding on benthic invertebrates Passes sand out gill slits and captures prey on gill rakers - PowerPoint PPT PresentationTRANSCRIPT
Gerreidae, Haemulidae, & Sparidae
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Family Gerreidae
• Mojarras• Common species:
o Spotfin Mojarra (Eucinostomus argenteus)
Gerreidae, Haemulidae, & Sparidae
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Gerreidae Characteristics
• Highly protrusible jaw, compressed silvery body• Use mouth for feeding on benthic invertebrates
o Passes sand out gill slits and captures prey on gill rakers
• The silver jenny (Eucinostomus gula) and spotfin mojarra (Eucinostomus argenteus) are almost indistinguishable
Gerreidae, Haemulidae, & Sparidae
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Family Haemulidae
• Grunts• Common species:
o Tomtate (Haemulon aurolineatum)
o White Grunt (Haemulon plumeri)
o Pigfish (Orthopristis chrysoptera)
Gerreidae, Haemulidae, & Sparidae
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Haemulidae Characteristics
• Beautiful schooling fish, usually found associated with reefs
• Small mouth and teeth, large molariform teeth on pharynx
French Grunts
Gerreidae, Haemulidae, & Sparidae
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Diurnal Migrations
• Form diurnal aggregations on reefs and migrate to sand and grass beds to feed
• Interestingly, migrations always follow the same routeo Routes are not genetically inherited, but
learned socially as “cultural traditions”
Gerreidae, Haemulidae, & Sparidae
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We have to stop meeting like this!!
White Grunts
Gerreidae, Haemulidae, & Sparidae
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White Grunt (Haemulon plumieri)
• Caught frequently in the S.E. U.S., one of the largest grunts (25” and 8lbs.)
Gerreidae, Haemulidae, & Sparidae
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Tomtate (Haemulon aurolineatum)
• The smallest of the grunts; it is not commercially viable
Gerreidae, Haemulidae, & Sparidae
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Family Sparidae
• Porgies• Common species:
o Red Porgy (Pagrus pagrus)
o Whitebone Porgy (Calamus leucosteus)
o Sheepshead (Archosargus probatocephalus)
o Pinfish (Lagodon rhomboides)
Gerreidae, Haemulidae, & Sparidae
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Sparidae Characteristics
• Continuous dorsal fin; front jaw has incisor-like or canine teeth
• Grunt-like in appearance, but feeding habits are more diversified
• Have well-developed molariform teeth on pharyngeal jaws
Gerreidae, Haemulidae, & Sparidae
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Red Porgy
• Was once one of NC’s most valued reef fish but severely overfished in 1980’s
Gerreidae, Haemulidae, & Sparidae
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Pinfish
• Ubiquitous, omnivores (mostly plants)
• Larvae are found in estuaries in late winter and early spring