Skip to main content

Food Size Dependent Feeding and Egg Production of Acartia pacifica from a Tropical Strait

Buy Article:

$25.00 plus tax (Refund Policy)

Abstract:

A study was carried out to observe the effect of food size spectra and food concentration on the ingestion rate and egg production rate (EPR) of Acartia pacifica (Steuer, 1915), a small calanoid copepod (total length 1.0–1.3 mm), from the Strait of Malacca. Food particles were divided into four size fractions (10–20, 20–35, 35–50, and 50–140 μm) and quantified in terms of chlorophyll a concentration and carbon biomass with the C:N values used as an indication of food quality. Acartia pacifica showed significantly higher carbon ingestion rates for the 50–140 μm food size fraction, reflecting the species' affinity for larger food particles; however, mean EPR was significantly higher for the 35–50 μm food size fraction where the mean C:N value was 14.7. Similarly, gross egg production efficiency (E p) was the highest for this food size fraction. In general, E p was comparable to other acartia species from tropical areas, but lower than those from temperate regions. This probably is due to a higher metabolic carbon demand and a lower quality of food in the tropical environment. Acartia pacifica effectively utilized food from the broad size spectrum used in our study with an affinity for larger particles with higher (though not highest) C:N content.

Document Type: Research Article

DOI: https://doi.org/10.5343/bms.2011.1026

Publication date: 2012-04-01

More about this publication?
  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more