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Suborder Gobiodei: The Gobies. Thomas J Bland Olatunde Akinwale 21 November, 2008. www.eol.org. Gobiodei. 9 families, 270 genera, 2211 species Benthic Mostly Marine Small bodied. www.eol.org. Gobiodei. Swim bladder absent Pelvic fins below pectoral fins Fused (usually)

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suborder gobiodei the gobies

Suborder Gobiodei: The Gobies

Thomas J Bland

Olatunde Akinwale

21 November, 2008

www.eol.org

gobiodei
Gobiodei

9 families, 270 genera, 2211 species

Benthic

Mostly Marine

Small bodied

gobiodei1
Gobiodei

Swim bladder absent

Pelvic fins below pectoral fins

Fused (usually)

Lateral line reduced

Cephalic canals

Can be highly variable among species

phylogenetics
Phylogenetics

Gobioidei is monophyletic

Families are not

Thacker 2003

loach gobies
Loach Gobies

Family Rhyacicthyidae

1 genus, 2 species

Most primitive goby

Retains well developed lateral line

www.fishbase.org

www.eol.org

freshwater sleepers
Freshwater Sleepers

Family Odontobutidae

5 genera, 15 species

May not be monophyletic

www.fishbase.org

www.eol.org

sleepers
Sleepers

Family Eleotridae

35 genera, 155 species

Marine, brackish, and freshwater

Pelvic fins separate

Oxyeleotris marmorata reaches 66cm

www.nzfreshwater.org

www.eol.org

sand gobies
Sand Gobies

Family Kraemeriidae

2 genera, 8 species

Elongate body

Burrow into sand

animaldiversity.ummz.umich.edu

www.eol.org

gobies true gobies
Gobies, True Gobies

Family Gobiidae

210 genera, >2000 species

10-20 new species/year

Round goby (Neogobius melanostomus)

animaldiversity.ummz.umich.edu

www.eol.org

wormfishes
Wormfishes

Family Microdesmidae

5 genera, 20 species

Very elongate

Burrow into substrate

www.fishbase.org

www.eol.org

infantfishes
Infantfishes

Family Schindleriidae

1 genus, 3 species

Highly Paedomorphic

Transparent, some bones/cartilage does not develop

Lightest, shortest lived vertebrate

www.fishbase.org

www.eol.org

round goby neogobius melanostomus1
Round Goby(Neogobius melanostomus)

Ballast water introduction

www.eol.org

round goby
Round Goby

High reproductive rate

Aggressive

Displaces native benthic fishes

Eat fish eggs and native mussels

Native predator of Zebra Mussel (Driessena polymorpha)

animaldiversity.ummz.umich.edu

goby vids
Goby vids

http://video.google.com/videoplay?docid=1188610441663749549&ei=lrgkScPyJoGE_AHqrrDxBg&q=shrimp+goby&hl=en

http://www.youtube.com/watch?v=taChNbtKIV0

mudskippers
Mudskippers

Subfamily Oxudercinae

10 genera, 39 species

Distribution ranges from

Tropical and subtropical

Intertidal soft-bottomed

Shores of West Africa and

Indo-Pacific region.

mudskippers cont d
Mudskippers (cont’d)

Some species possess adaptations to terrestrial environment and amphibious life.

In particular, periophthalms (genus Periophthalmus) and boleophthalms (genus Boleophthalmus) include species that inspired popular and scientific imagination since the dawn of the Natural Sciences.

mudskippers cont d1
Mudskippers (cont’d)

http://www.youtube.com/watch?v=9S4TA9RfDb8&feature=related

Periophthalmus argentilineatus

Boleophthalmus pectinirostris

questions
Questions

What adaptations do gobies have for a benthic lifestyle?

Why are loach gobies considered the most primitive gobies?

Why is Gobiidae so speciose?

Why do experts think there may be lots of undiscovered species in Gobiidae?

Where is the round goby native to?

What role does the goby play in the shrimp goby/shrimp mutualism?