Modelling impacts of climate variability on the commercial barramundi (Lates calcarifer) fishery of north-eastern Queensland
نویسنده
چکیده
Barramundi (Lates calcarifer) is an important Queensland commercial fishery that exhibits dramatic inter-annual fluctuations in catch which, according to fishers, are explained in part by variations in the climate. Traditionally, modelling of fisheries harvest has focussed on the development of surplus production/yield models which use catch and effort data, and more complex age-structured models. More recently, however, the effect of climate variability has been shown to have a significant impact on the catch of fisheries such as anchovies, and so techniques to incorporate climate parameters into fisheries modelling and management are being developed. This paper explores, through correlation and cross validated regression modelling techniques, the possible impact of climate variability on the commercial barramundi fishery harvest in Princess Charlotte Bay (PCB) far north Queensland which varies on a year-to-year basis. Results suggest a strong relationship between tested climate variables two years prior and annual barramundi landings.
منابع مشابه
The use of biomarkers in barramundi (Lates calcarifer) to monitor contaminants in estuaries of Tropical North Queensland
متن کامل
Effects of modified atmosphere packaging on microbiological load and physico-chemical properties of barramundi (Lates calcarifer Bloch) fillets at 8°C
Different modified atmosphere conditions with various CO2 concentrations on microbial load (psychrophile, mesophile aerobic and anaerobic bacteria) and physico-chemical properties of barramundi (Lates calcarifer Bloch) fillets stored at 8°C were compared to determine the best packaging conditions. The gas conditions evaluated were 100% CO2 (M1), 75% CO2/25% N2 (M2), 50% CO2/50% N2 (M3), 25% CO...
متن کاملAcute and postexposure effects of ammonia toxicity on juvenile barramundi (Lates calcarifer [Bloch]).
Lethal and sublethal effects of ammonia toxicity to juvenile barramundi (Lates calcarifer) were investigated under laboratory conditions following the OECD guidelines for testing of chemicals. Acute toxicity was tested in a static nonrenewal system at pH 9.0 and temperature around 29 degrees C. The 24-, 48-, and 96-h LC(50) values for barramundi were 3.89, 3.67, and 3.31 mg total ammonia N L(-1...
متن کاملMitochondrial genealogy of Western Australian: applications of inbreeding coefficients and coalescent analysis for separating temporal population processes
In Australian populations of barramundi Lates calcarifer, phylogenetic reconstruction of mtDNA sequences provided evidence of significant historical levels of gene flow, despite the substantial structuring of contemporary populations. The geographical pattern of mtDNA sequences among the populations was not congruent with previous evidence of a major disjunction between western and eastern popu...
متن کاملEffects of modified atmosphere packaging on microbiological load and physico-chemical properties of barramundi (Lates calcarifer Bloch) fillets at 8°C
Different modified atmosphere conditions with various CO2 concentrations on microbial load (psychrophile, mesophile aerobic and anaerobic bacteria) and physico-chemical properties of barramundi (Lates calcarifer Bloch) fillets stored at 8°C were compared to determine the best packaging conditions. The gas conditions evaluated were 100% CO2 (M1), 75% CO2/25% N2 (M2), 50% CO2/50% N2 (M3), 25% CO...
متن کامل