Quantifying mercury isotope dynamics in captive Pacific bluefin tuna (Thunnus orientalis)
نویسندگان
چکیده
منابع مشابه
Bioenergetics of captive Pacific bluefin tuna (Thunnus orientalis)
a Tuna Research and Conservation Center, Monterey Bay Aquarium, 886 Cannery Row, Monterey, CA 93940, USA b University of Hawaii, Manoa, 2450 Campus Rd, Dean Hall 2, Honolulu, HI 96822, USA c Research Center for Subtropical Fisheries, Seikai National Fisheries Research Institute, 148-446, Fukai-Ohta, Ishigaki, Okinawa 907-0451, Japan d School of Fisheries and Ocean Sciences, 905 Koyukuk Drive, F...
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...
متن کاملAmino Acid Isotope Incorporation and Enrichment Factors in Pacific Bluefin Tuna, Thunnus orientalis
Compound specific isotopic analysis (CSIA) of amino acids has received increasing attention in ecological studies in recent years due to its ability to evaluate trophic positions and elucidate baseline nutrient sources. However, the incorporation rates of individual amino acids into protein and specific trophic discrimination factors (TDFs) are largely unknown, limiting the application of CSIA ...
متن کاملQuantifying energy intake in Pacific bluefin tuna (Thunnus orientalis) using the heat increment of feeding.
Using implanted archival tags, we examined the effects of meal caloric value, food type (sardine or squid) and ambient temperature on the magnitude and duration of the heat increment of feeding in three captive juvenile Pacific bluefin tuna. The objective of our study was to develop a model that can be used to estimate energy intake in wild fish of similar body mass. Both the magnitude and dura...
متن کاملHeart rate responses to temperature in free-swimming Pacific bluefin tuna (Thunnus orientalis).
The bluefin tuna heart remains at ambient water temperature (Ta) but must supply blood to warm regions of the body served by countercurrent vascular heat exchangers. Despite this unusual physiology, inherent difficulties have precluded an understanding of the cardiovascular responses to Ta in free-swimming bluefin tunas. We measured the heart rate (f(H)) responses of two captive Pacific bluefin...
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ژورنال
عنوان ژورنال: Elementa: Science of the Anthropocene
سال: 2016
ISSN: 2325-1026
DOI: 10.12952/journal.elementa.000088