WebJun 9, 2024 · Fish otoliths' chronometric properties make them useful for age and growth rate estimation in fisheries management. For the Eastern Baltic Sea cod stock (Gadus morhua), unclear seasonal growth zones in otoliths have resulted in unreliable age and growth information.Here, a new age estimation method based on seasonal patterns in … WebFeb 13, 2024 · Much has been revealed about fish migration, including diadromous behaviour, through the use of otolith chemistry. Manipulative experiments assist with unravelling information on otolith chemical composition and incorporation thereby answering specific questions on diadromous movements. In this study, a laboratory …
Otolith chemistry in stock delineation: A brief overview, current ...
Webotolith chemistry has emerged which promises to address a suite of questions that have proven difficult or impossible to resolve through other means. Dis- cussed in only 6 … WebOct 14, 2024 · Ontogenetic otolith chemistry patterns revealed by LA-ICP-MS core-to-edge transects in this study are similar to those derived from LA-ICP-MS discrete spot analyses on PBT, as well as probe-based otolith studies of other migratory tuna species including south Pacific albacore Thunnus alalunga , skipjack tuna Katsuwanus pelamus and southern … the morrígan
Reconstructing habitat use, identifying origin and discrimination of …
WebJul 27, 2012 · Life-long strontium patterns in otoliths of the sciaenid Micropogonias furnieri caught in the southwestern Atlantic Ocean were examined to evaluate estuarine dependency and habitat use. Otolith Sr concentrations were on average 820 ± 55 μg g−1 for freshwater, 1,751 ± 101 μg g−1 for estuarine, and ranged from 2,000 to over 4,000 μg g−1 for marine … WebOct 5, 2016 · Otolith chemistry can be used to quantify the chemical signatures of transgenerational marks and thereby reveal information on fish movement, population structure, stock enhancement and other topics important for fisheries managers (Munro et al., 2009; Warren‐Myers et al., 2015). WebMar 30, 2015 · The influence of physiological factors on otolith composition was particularly evident in Sr/Ca ratios, the most widely used elemental marker in applied otolith microchemistry studies. Reproduction also triggered specific variations in otolith and blood plasma metal chemistry, especially Zn/Ca ratios in female fish, which could potentially … the morse bar