nurul fitriya research center for oceanography indonesian ... · copepod in indonesia expeditions:...
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INTRODUCTION
Copepod : microcrustacea holoplanktonic Humes (1994) : 11.500 species ; 200 famili & 1650 genusCopepod in IndonesiaExpeditions: Challenger (1872-1876), Siboga (1899-1900), and Snellius I (1929-1930)Estuarine waters : Berau, East Kalimantan
1) Berau is the second big river after Mahakam in East Kalimantan that supplies a huge fresh water including sedimentation and pollution that could change the quality of coastal environment
2) the Berau estuarine is surrounded by mangrove forest that could supplied big amount of nutrient to the coastal environment
3) there is not any plankton study was done beforein Berau estuarine that could be used as base lineinput for coastal zone management of this area.
GOALS
To study the species composition of copepod including abundancePreparing the illustration and description of collected species of copepod in accurate way
M e t h o d
Temperature, Salinity and CurrentTemperature and Salinity ; CTD Current ; Direct Reading Currentmeter RCM-2Copepod ; conical plankton net, 300 µm, diameter of 0,45 m and length of 180 cm flow meter mounted at the mouth of the net
Table 1. Copepod in Berau WatersOrdo Family Genus Species HABITAT
P I O E N
Calanoid CalanidaeEucalanidae
Centropagidae
Temoridae
Acartiidae
PseudodiaptomidaeTortaniidaeParacalaniidae
Pontellidae
CandaciidaePhaennidae
CanthocalanusSubeucalanus
Centropages
Temora
Acartia
PseudodiaptomusTortanusAcrocalanusParvocalanusParacalanusBestiolinaLabidocera
Pontellopsis
CalanopiaCandaciaPhaenna
1. pauver2. subcrassus3. crassus4. brevifurcus5. furcatus6. dorsispinatus (nr)7. orsini8. discaudata9. turbinata
10. pasifica11. erythraea12. bispinosa13. incisus14. forcipatus15. gibber16. crassirotris17. aculeatus18. similis19. acuta20. bengalensis21. javaensis22. minuta23. macronyx24. herdmani25. australica26. discaudata27. spinifera
●●●-●-●●●●●●-●●●●●●●-●●-●●●
●●●-●-●-●●●●-●●●●●●●-●●●●●●
●●●-●------●----●----●----●
---●-●-●-●●-●-----------●--
●--●-●●●●●●●●●●●●●●●●●●●●●-
Cyclopoida Oithonidae
Sapphirinidae
Oncaeidae
Oithona
CopiliaSapphirinaOncaea
28. brevicornis29. oculata30. simplex31. mirabilis32. gastrica33. conifera34. media35. sp. (ns)
●●●●●●●-
●●●●●●●-
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--------
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Harpacticoida LichomolgidaeEctinosomatidae
EuterpinaMicrosetella
36. acutifrons37. rosea
●●
●●
-●
●-
-●
Poecilostomatoida Tachidiidae
Corycaeidae
Kelleria
Corycaeus
38. australiensis39. sp. (ns)40. asiaticus41. catus42. crassiusculus43. lubbocki
●-●●●●
●-●●●●
--●●●●
●●----
●-----
Siphonostomatoida Caligidae Caligus 44. sp. - - - - -
Ket. P=Pacific; I=Indian; O=Oceanic; E=Estuarine; N=Neritic; nr = new record; ns = new species
Tabel 2. continue
Fig 5. Species Composition of Copepod in Berau Waters,
The composition of Copepod species in Berau Water
Calanoide, 80.533
Cyclopoid, 0.573
Poecilostomatoid, 15.116
Harpacticoid, 0.313
Siphonostomatoida, 0.004
Gbr 6. Kelimpahan species Kopepoda di Berau
Abundance of Copepod in Berau Water
0
100
200
300
400
500
600
700
800
900
1 2 3 4 5 6 7 8 9 10
Survey Stations
Abu
ndan
ce (i
nd/m
3 )
Siphonostomatoid
Harpacticoid
Poecilostomatoid
Cyclopoid
Calanoid
Fig 6. Abundance of Copepod in Berau Waters,
Fig 7. (a) Centropages dorsispinatus (Kim, 1985)(b) Centropages dorsispinatus in Berau waters, East Kalimantan
CONCLUSIONThe composition of Copepod species juring the sueves consist of:ordo Calanoid (27 species), Cyclopoid (8 species), Poecilostomatoid (6 species), Harpacticoid (2 species), and Siphonostomatoid (1 species)
1 new record species is Centropages dorsispinatus
The dominance of Copepod in general showed a trend that decreased from the estuarine to the open sea.
Calanoid had the higher dominance
The conditions of temperature, salinity and current pattern were suitable for the grow of Copepod and even the other marine animals.
Acartia bispinosa
Acartia pacifica
Acrocalanus gibber
Several photos of Copepod species in Berau, East Kalimantan
Tortanus forcipatus
Corycaeus asiaticus
Acartia erythraea
Several photos of Copepod species in Berau, East Kalimantan