Observation of Juvenile Southern Bluefin Tuna (Thunnus maccoyi C.) School Response to the Approaching Vessel Using Scanning Sonar
نویسندگان
چکیده
منابع مشابه
A draft genome assembly of southern bluefin tuna Thunnus maccoyii
Tuna are large pelagic fish whose populations are close to panmixia. In addition, they are threatened species, so it is important for the maintenance and monitoring of genetic diversity that genetic information at a genome level be obtained. Here we report the draft assembly of the southern bluefin tuna genome and the collection of genome-wide sequence data for five other tuna species. We sampl...
متن کاملResults of health surveys of two species of farmed tuna: southern bluefin tuna (Thunnus maccoyii) in Australia and northern bluefin tuna (Thunnus thynnus) in the Mediterranean
Health of two farmed species of tuna was evaluated in farm surveys in Australia, Croatia and Spain. The results were discussed at tuna health workshop during EAFP 12th International Conference. While a wide range of parasites was found, few problems occurred during the surveys. The information obtained will be useful for future monitoring and research on health of farmed tuna. Introduction Fish...
متن کاملEvidence of separate subgroups of juvenile southern bluefin tuna
Archival tagging studies of southern bluefin tuna (SBT , Thunnus maccoyii) have revealed that juveniles residing in the Great Australian Bight (GAB) over the austral summer undertake seasonal cyclic migrations to the southeast Indian Ocean and the Tasman Sea during winter. However, there remains disagreement about the extent of mixing between juvenile SBT regularly caught by longline fleets sou...
متن کاملThermal effects on the blood respiratory properties of southern bluefin tuna, Thunnus maccoyii.
Thermal effects on the blood respiratory properties of southern bluefin tuna (Thunnus maccoyii) at 10, 23 and 36 degrees C, and at 0.5 and 1.5% CO(2) were investigated. A reversed temperature effect occurred as the oxygen partial pressure required for 50% haemoglobin saturation (P(50)) at 0.5% CO(2) decreased from 2.9 kPa at 10 degrees C to 1.7 kPa at 23 degrees C (apparent heat of oxygenation,...
متن کاملPostprandial metabolism of Pacific bluefin tuna (Thunnus orientalis).
Specific dynamic action (SDA) is defined as the energy expended during ingestion, digestion, absorption and assimilation of a meal. This study presents the first data on the SDA response of individual tunas of any species. Juvenile Pacific bluefin tunas (Thunnus orientalis; body mass 9.7-11.0 kg; N=7) were individually fed known quantities of food consisting primarily of squid and sardine (meal...
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ژورنال
عنوان ژورنال: Fisheries and aquatic sciences
سال: 2002
ISSN: 1226-9204
DOI: 10.5657/fas.2002.5.3.206