Abundance of planktonic crustacean larvae, especially decapods, in the northern Arafura Sea in relation to the monsoons
Romimohtarto, K.; Hindarti, D. (1990). Abundance of planktonic crustacean larvae, especially decapods, in the northern Arafura Sea in relation to the monsoons. Neth. J. Sea Res. 25(4): 585-589
In: Netherlands Journal of Sea Research. Netherlands Institute for Sea Research (NIOZ): Groningen; Den Burg. ISSN 0077-7579; e-ISSN 1873-1406, more
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| Authors | | Top |
- Romimohtarto, K.
- Hindarti, D.
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| Abstract |
During the Snellius-II Expedition, vertical hauls with a 150 µm plankton net were made by R.V. 'Samudera' around the Aru Islands during August 1984 and February 1985. Subsamples were analysed on cirriped, stomatopod and decapod larvae. Mean numbers per m² were highest at stations at sites of < 50 m depth and lowest at stations in the Aru Basin. During both cruises large concentrations of brachyuran and caridean larvae occurred at stations southeast of Aru. In the upwelling season (August) high numbers were also found in the zone with increased chlorophyll along the coast of Irian Jaya. Acetes larvae reached densities of up to 20-40 per m³ at some shallow sites, but were not found in the February catches. Larvae of Penaeus sp. occurred in both monsoons, but densities were higher in August than in February. |
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