Poultry Fisheries & Wildlife Sciences 1 Poult Fish Wildl Sci, Vol.10 Iss.3 No:1000198 OPEN ACCESS Freely available online Research Article Correspondence to: Walter Hugo Diaz Pinaya, Department of Aquaculture and Fisheries, Ministry of Agriculture, Livestock and Supply, Brasilia, Brazil;, E-mail: walterpinaya@gmail.com Received: 23-Nov-2022, Manuscript No. PFW-22-20369; Editor assigned: 25-Nov-2022, PreQC No. PFW-22-20369 (PQ); Reviewed: 12-Dec-2022, QC No. PFW-22-20369; Revised: 19-Dec-2022, Manuscript No. PFW-22-20369 (R); Published: 26-Dec-2022, DOI: 10.35248/2375-446X.22.10.198. Citation: Pinaya WHD, Campos R, Maia BPS, Nunes ZMP, Bentes B (2022) Impacts of Climate Variability on the Southern Brown Shrimp (Penaeus subtilis) Fishery on the Amazon Shelf. Poult Fish Wildl Sci. 10: 198. Copyright: © 2022 Pinaya WHD, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Impacts of Climate Variability on the Southern Brown Shrimp (Penaeus subtilis) Fishery on the Amazon Shelf Walter Hugo Diaz Pinaya 1* , Rodrigo Campos 2 , Breno Portilho de Sousa Maia 3 , Zelia Maria Pimentel Nunes 3 , Bianca Bentes 4 1 Department of Aquaculture and Fisheries, Ministry of Agriculture, Livestock and Supply, Brasília, Brazil; 2 Department of Environmental Science and Technology, Santa Cecilia University, Sao Paulo, Brazil; 3 Department of Coastal Studies, Federal University of Para, Para, Brazil; 4 Department of Aquatic Ecology and Fisheries of the Amazon Center, Federal University of Para, Para, Brazil ABSTRACT Bottom shrimp trawling on the Brazilian Amazon shelf is historically recognized by the environmental impacts and with the advent of technologies for detecting and locating shoals, the effects of using bottom trawls are even more intense. Thus, and considering the relationship of shrimp catches with climatic and oceanographic events, increasingly the nets operating along the coast of the Brazilian Amazon account for a greater number of dead organisms at sea. Our results show that direct or indirect, small, and medium scale events, such as sea surface temperature, the duration and intensity of the Amazon River hydrological cycle and the field of trade winds, as well as large scale events, like ENSO and heat flux in the Atlantic Ocean, interact with the shrimp fishery dynamics in the study area. The need for ways to control the impacts generated by fishing nets is evident, and the efforts of the Brazilian government are still little or almost never efficient in face of the political-economic mobilizations of the productive sector. Keywords: Shrimp marine fishery; Environment variability; Climate-fishery interaction; Fishery model; Amazon; Brazil INTRODUCTION Marine shrimp fisheries are an important component of the world fisheries landing, and in Brazil. Shrimp fisheries in tropical and subtropical regions are highly productive [1]. The life cycle and the spatial and temporal distribution patterns of the penaeids are influenced by several environmental factors, such as: temperature, salinity, substrate type, water depth, tides, and food availability, which together determine recruitment patterns and the health of stocks [2-7]. The Southern brown shrimp, Farfantepenaeus subtilis (Pérez Farfante), together with Farfantepenaeus brasiliensis, contribute 95% of the total landing of marine shrimp fisheries on the continental shelf of northern Brazil [8]. This fishery uses a bottom trawling system the double rig system, which consists of two trawls with two otter boards, coupled to two warps controlled by motorized winches [8,9]. The industrial trawling fleet that targets Southern brown shrimp in northern Brazil uses boats of 20 m-28 m in length, with autonomy of approximately 37 days. All these vessels are equipped with a Global Position System (GPS), echo sounder, radar and sonar, and freezer compartments [9,10]. Despite the economic importance of industrial shrimp fisheries on the northern coast of Brazil, few studies have evaluated the variability in the productivity of this resource, and there are few data on the relationship between Southern brown shrimp fishery productivity and marine climate variability for nay region. This hampers the development of effective fishery management strategies. The present study provides the first systematic analysis of the influence of climate on shrimp fishery productivity in the region of the continental shelf of northern Brazil, relating the variability in productivity to the cycle of the marine climate. MATERIALS AND METHODS Study area The study area is located on the Amazon shelf (latitudes 0˚40’S and