7/30/2019 kerang2an

1/5

Gambar Indonesian

name

Scientific

name

Omni

vora

Karni

v

ora

Herbi

vora

Habitat Reproduksi

Tegillarcagranosa(WoRMS) /

Anadara

granosaAnadara

(Tegillarca)granosa

(Dharma 2008)

Solen Vagina

truncatus(WoRMS)

Solen truncata(Dharma 2008)

Atrina spAtrina

(Servatrina)pectinata

(Dharma

2008).

Anadara(Cunearca)

pilula (Dharma2008)

Trisidostortuosa

(Dharma2008).

Marcia(Hemitapes)

japonica

7/30/2019 kerang2an

2/5

Identifikasi by : Pieter F. Silulu, S.Kel.

7/30/2019 kerang2an

3/5

Scientific name Commoncharacteristics Averagelength

(cm)

maximum

length

(cm)

length at

maturity

(mm)

Reproductive

strategy

Trophic level

(from diet

composition

unless otherwise

stated)

Anadara (Tegillarca) granosa Shell equivalve, thick and solid, ovate,strongly inflated, slightly longer thanhigh and feebly inequilateral. Umbones

strongly protruding, cardinal area ratherlarge. About 18 radial ribs (15 to 20) withwide interstices at each valve; ribs stout

and distinctly rugose, bearing regular,often rectangular nodules. Periostracum

rather thin and smooth. Internal marginswith strong crenulations correspondingwith the external radial ribs. No byssal

gape. Colour: outside of shell whiteunder the yellowish brown periostracum.

Inner side white, often tinged yellowtowards the umbonal cavity.

6.0 9.0

Solen truncata 14.0Atrina (Servatrina) pectinata Shell reaching a large size, usually rather

thin, fragile, moderately inflated andtriangularly wedge-shaped in outline,

with a highly variable sculpture. Dorsalmargin nearly straight or slightlyconcave, posterior margin generally

truncate. Ventral margin widely convexposteriorly, straightish to shallowly

depressed anteriorly. Outer surface ofvalves with 15 to 30 radial ribs whichmay be smooth to densely set with short,

open spines. Dorsal most radial ribfrequently with a series of short andsharp spines protruding along the dorsal

margin of shell. Inner surface of shellwith shallow grooves corresponding to

the external radial ribs. Internal nacreouslayer rather thin, undivided, occupyingthe anterior 2/3 to 3/4 of valves. Posterior

adductor scar completely enclosed withinthe nacreous area. Colour: outside of

shell slightly shiny, translucentolivaceous tan, often tinged with darker

purplish brown or grey toward the

umbones. Interior similarly coloured,iridescent on nacreous area.

26.0 37.0

Anadara (Cunearca) pilula 3.0 4.0

7/30/2019 kerang2an

4/5

Trisidos tortuosa Half-buried in fine to medium sand

bottoms, with abundant f ragmental shellmaterial and subject to the effects of

currents and wave action. Littoral andsublittoral

7.5 8.5

Marcia (Hemitapes) japonica 5.0 6.0

Saccostrea cucullata 10.0 20.0

Placuna placenta Actively collected and often over fished,or commercially cultured for the shellswhich are used in large quantities for

shellcraft. Transparent shells are locallyused in some areas as a substitute for

window glass in houses. Soft parts areconsumed by coastal populations. Foundin sandy or muddy substrates in shallow

estuarine lagoons, coves and small bayswhere salinity of water ranges from 10-

35 ppm

10.0 18.0

Perna viridis Shell elongate, roughly trigonal-ovate inoutline, swollen and pointed anteriorly,

rounded and compressed posteriorly.Umbones terminal and sharply tapering,rather incurved. Anterior margin reduced.

Ventral margin long and often somewhatconcave. Outer surface nearly smooth

apart from concentric growth marks andfaint radial lines. Periostracum ratherthick and smooth, adherent. Ligamental

ridge finely pitted. Hinge with 1 smalltooth in right valve and 2 in the left.Anterior adductor scar absent in adult

specimens. Posterior retractor scars large,confluent with the posterior adductor

scar. Anterior retractor scar separated,elongate-ovate in shape, situated a shortway to posterior end of ligament. Internal

margins smooth. Colour: outside of shell

whitish under a bright periostracumwhich is dark brownish green anteriorlyand olive-green to bright green

posteriorly. Interior an iredescent pale

bluish green, with a vivid green marginon periostracum.

8.0 16.5 15-30

External sexualfertilization.

Spawning peaks

coincide withmonsoon

seasons except

in the

Philippines and

Thailand wherespawning is

year-round (Ref.

80527). Both

sexes release

gametes in the

water column,

where developed

larvae remain fortwo weeks

before settling in

benthic habitatas juveniles.

Sexual maturity

occurs at 15-30

mm shell length,

roughly 2-3

months age.

Paphia undulata 5.0 6.5

The sexes are usually separate in bivalves but some

hermaphroditism

is known. Fertilization is usually external. Most

of the bivalve larvae that hatch from eggs in the water column feed on

diatoms or other phytoplankton

Jenis kelaimn jantan dan betina pada bivalvia umumnya terpisah, tetapi pada beberapa spesies

diketahui sebagai hermafrodit. Pembuahan

antara

http://en.wikipedia.org/wiki/Hermaphroditismhttp://en.wikipedia.org/wiki/Diatomhttp://en.wikipedia.org/wiki/Diatomhttp://en.wikipedia.org/wiki/Hermaphroditismhttp://en.wikipedia.org/wiki/Diatom

7/30/2019 kerang2an

5/5

sel telur dan sel sperma terjadi secara eksternal

Dan setiap telur yang menetas di kolom air akan menjadi larva dan memakan diato-diatom atau

fitoplankton lainnya