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Family Gerreidae

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Passes sand out gill slits and captures prey on gill rakers ... Whitebone Porgy (Calamus leucosteus) Sheepshead (Archosargus probatocephalus) ... – PowerPoint PPT presentation

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Title: Family Gerreidae


1
Family Gerreidae
  • Mojarras
  • Common species
  • Spotfin Mojarra (Eucinostomus argenteus)

2
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
  • The silver jenny (Eucinostomus gula) and spotfin
    mojarra (Eucinostomus argenteus) are almost
    indistinguishable

3
Family Haemulidae
  • Grunts
  • Common species
  • Tomtate (Haemulon aurolineatum)
  • White Grunt (Haemulon plumeri)
  • Pigfish (Orthopristis chrysoptera)

4
Haemulidae Characteristics
  • Beautiful schooling fish, usually found
    associated with reefs
  • Small mouth and teeth, large molariform teeth on
    pharynx

French Grunts
5
Diurnal Migrations
  • Form diurnal aggregations on reefs and migrate to
    sand and grass beds to feed
  • Interestingly, migrations always follow the same
    route
  • Routes are not genetically inherited, but learned
    socially as cultural traditions

6
We have to stop meeting like this!!
White Grunts
7
White Grunt (Haemulon plumieri)
  • Caught frequently in the S.E. U.S., one of the
    largest grunts (25 and 8lbs.)

8
Tomtate (Haemulon aurolineatum)
  • The smallest of the grunts it is not
    commercially viable

9
Family Sparidae
  • Porgies
  • Common species
  • Red Porgy (Pagrus pagrus)
  • Whitebone Porgy (Calamus leucosteus)
  • Sheepshead (Archosargus probatocephalus)
  • Pinfish (Lagodon rhomboides)

10
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

11
Red Porgy
  • Was once one of NCs most valued reef fish but
    severely overfished in 1980s

12
Pinfish
  • Ubiquitous, omnivores (mostly plants)
  • Larvae are found in estuaries in late winter and
    early spring
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