The constraints of high density production of the calanoid copepod Acartia tonsa Dana

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Copepods are excellent live feed for marine fish larvae in aquaculture. Culturing copepods at high density is important to increase the total egg yield, but this is still a main challenge. To address this, we conducted experiments to test factors affecting the egg harvest potential of the well studied and aquaculture relevant calanoid Acartia tonsa. A simple model was developed to evaluate the influence of individual egg production, egg predation, crowding effects and tank design on the egg harvest. At high densities from 500 to 3500 ind L−1, there was no difference in food ingestion and egg cannibalism. However, the copepods showed lower food consumption and egg cannibalism compared to the ecologically relevant densities of 20–100 ind L−1. Model calculations demonstrate that maximum egg harvest is the result of a subtle balance between water mixing and tank depth: a shallow, non-mixed tank will allow the eggs to settle and escape cannibalism but at the same time prevent the algal food staying suspended, and full utilization of the egg production potential depends on the fine tuning of these parameters
Original languageEnglish
JournalJournal of Plankton Research
Volume39
Issue number6
Pages (from-to)1028–1039
Number of pages12
ISSN0142-7873
DOIs
Publication statusPublished - 2017

Cite this

@article{95864fdf478e48a6821de842e8d24309,
title = "The constraints of high density production of the calanoid copepod Acartia tonsa Dana",
abstract = "Copepods are excellent live feed for marine fish larvae in aquaculture. Culturing copepods at high density is important to increase the total egg yield, but this is still a main challenge. To address this, we conducted experiments to test factors affecting the egg harvest potential of the well studied and aquaculture relevant calanoid Acartia tonsa. A simple model was developed to evaluate the influence of individual egg production, egg predation, crowding effects and tank design on the egg harvest. At high densities from 500 to 3500 ind L−1, there was no difference in food ingestion and egg cannibalism. However, the copepods showed lower food consumption and egg cannibalism compared to the ecologically relevant densities of 20–100 ind L−1. Model calculations demonstrate that maximum egg harvest is the result of a subtle balance between water mixing and tank depth: a shallow, non-mixed tank will allow the eggs to settle and escape cannibalism but at the same time prevent the algal food staying suspended, and full utilization of the egg production potential depends on the fine tuning of these parameters",
author = "Thuy, {Minh Vu Thi} and Hansen, {Benni Winding} and Thomas Ki{\o}rboe",
year = "2017",
doi = "10.1093/plankt/fbx056",
language = "English",
volume = "39",
pages = "1028–1039",
journal = "Journal of Plankton Research",
issn = "0142-7873",
publisher = "Oxford University Press",
number = "6",

}

The constraints of high density production of the calanoid copepod Acartia tonsa Dana. / Thuy, Minh Vu Thi; Hansen, Benni Winding; Kiørboe, Thomas.

In: Journal of Plankton Research, Vol. 39, No. 6, 2017, p. 1028–1039.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - The constraints of high density production of the calanoid copepod Acartia tonsa Dana

AU - Thuy, Minh Vu Thi

AU - Hansen, Benni Winding

AU - Kiørboe, Thomas

PY - 2017

Y1 - 2017

N2 - Copepods are excellent live feed for marine fish larvae in aquaculture. Culturing copepods at high density is important to increase the total egg yield, but this is still a main challenge. To address this, we conducted experiments to test factors affecting the egg harvest potential of the well studied and aquaculture relevant calanoid Acartia tonsa. A simple model was developed to evaluate the influence of individual egg production, egg predation, crowding effects and tank design on the egg harvest. At high densities from 500 to 3500 ind L−1, there was no difference in food ingestion and egg cannibalism. However, the copepods showed lower food consumption and egg cannibalism compared to the ecologically relevant densities of 20–100 ind L−1. Model calculations demonstrate that maximum egg harvest is the result of a subtle balance between water mixing and tank depth: a shallow, non-mixed tank will allow the eggs to settle and escape cannibalism but at the same time prevent the algal food staying suspended, and full utilization of the egg production potential depends on the fine tuning of these parameters

AB - Copepods are excellent live feed for marine fish larvae in aquaculture. Culturing copepods at high density is important to increase the total egg yield, but this is still a main challenge. To address this, we conducted experiments to test factors affecting the egg harvest potential of the well studied and aquaculture relevant calanoid Acartia tonsa. A simple model was developed to evaluate the influence of individual egg production, egg predation, crowding effects and tank design on the egg harvest. At high densities from 500 to 3500 ind L−1, there was no difference in food ingestion and egg cannibalism. However, the copepods showed lower food consumption and egg cannibalism compared to the ecologically relevant densities of 20–100 ind L−1. Model calculations demonstrate that maximum egg harvest is the result of a subtle balance between water mixing and tank depth: a shallow, non-mixed tank will allow the eggs to settle and escape cannibalism but at the same time prevent the algal food staying suspended, and full utilization of the egg production potential depends on the fine tuning of these parameters

U2 - 10.1093/plankt/fbx056

DO - 10.1093/plankt/fbx056

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VL - 39

SP - 1028

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JO - Journal of Plankton Research

JF - Journal of Plankton Research

SN - 0142-7873

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ER -