Fishing Areas Research Articles

Predictive Analysis of Water-Level Changes in Lake Baikal: Social, Economic, and Environmental Impacts

For many years, scientists, the public, as well as the population of coastal settlements have been concerned about the water level in Baikal, as its fluctuations lead to various socio-economic and environmental problems. In this regard, to predict the water level in Baikal, the task of building mathematical models of the dependence of the level on the factors that influence its importance is very relevant. The aim of this work is to construct such a mathematical model using econometric research methods. Six econometric models were built in the analysis. After testing them for adequacy, the author chose a polynomial model based on which point and interval forecasts were built. The average error of the approximation obtained (the average deviation of the predicted water level from the actual) is 0,03 % which indicates a high accuracy of the selected model. The work also discusses possible (some of the already existing) socio-economic and environmental problems of two fishing areas — the Barguzinsky Bay and the Gulf of Debacle. This study is an exploratory research and has practical value. In the future, the author plans to improve the quality of the model by increasing possible factors that influence changes in the level of Lake Baikal.

Direct assessment of giant red sea cucumber (Apostichopus californicus) sustainability through experimental fisheries

The giant red sea cucumber ( Apostichopus californicus) fishery in BC, Canada, is considered sustainable by managers but not by many harvesters. In 1997, the Kitasoo/Xai'xais First Nation began experimental fishing areas (EFAs) at Tolmie Channel and Laredo Inlet to test the effects of different exploitation rates on sea cucumber populations and determine what harvest levels are sustainable. These EFAs were annually surveyed by dive transects and subsequently harvested from 1998 to 2018. Bayesian surplus production models developed in 2011 indicated that the fishery was sustainable, after which the fishery changed from annual to 3-year rotational harvests. Here, we develop updated models to estimate the sustainability of the fishery using all currently available EFA data, including direct estimates of unfished biomass. Our models suggest that the fishery is likely to persist for 175 years at the current harvest rate annually or rotationally, though such long-term projections are likely inaccurate. We present methodology to generate scientific advice for the process of determining a maximum sustainable exploitation rate in the form of crash rate analysis.

Artisanal fishers in small island developing states and their perception of environmental change: the case study of Mauritius.

The online version contains supplementary material available at 10.1007/s11160-022-09735-6.

The Artisanal Fishing Sector in the Spanish Mediterranean: A Sector with a Long History and an Uncertain Future

The fishing sector is facing major economic and environmental challenges worldwide. However, at least in developed countries, it is also undergoing a major social crisis. This research has tried to quantify and validate this subjective feeling of deep crisis, based on objective and quantitative data referring to the Spanish Mediterranean. Indeed, the results show alarming data. Different scattered databases have been analyzed and it has been exposed that in only 15 years the number of vessels, power and tonnage has decreased by about 40%; as for fishermen, their number has decreased by about 30%, also revealing a serious problem of generational replacement, since in only 10 years, the average age of fishermen has increased by 3 years. A simple linear regression model shows that this downward trend in the number of boats and fishermen will continue at least in the short term. The data obtained invite a deep reflection on the future or even the very survival of fishing in the Spanish Mediterranean in the medium term. This reflection is not limited to this specific area but can be extrapolated to many other fishing areas.

PENANGKAPAN TUNA MADIDIHANG (THUNNUS ALBACARES) DENGAN PANCING ULUR OLEH NELAYAN KECAMATAN AMAHAI KABUPATEN MALUKU TENGAH

One of the fishery commodities with high economic value is tuna, where in the Maluku region in 2021, tuna production will be 35.56% (BPS, 2022). Tuna is caught using handlines which are classified as small-scale fisheries. The existence of tuna that changes over time causes fishermen to experience uncertainty in finding suitable fishing areas. Temperature is an important indicator in the distribution and abundance of tuna. This study aims to determine the composition of the hand line catch and to analyze the temperature distribution based on the area of ​​the hand line fishing operation in Central Maluku Regency. The research was conducted in the waters with the method used is a survey method by following fishing trips and using GPS satellite-based Spot Trace to track vessel movement activities during fishing operations. Descriptive data analysis was used to determine the composition of fisherman catches and used SeaWiFS Data Analysis System (SEADAS) 7.3.1 and Surfer 12 to analyze the distribution of water temperatures at fishing locations. The results showed that yellowfin tuna (Thunnus albacares) dominated the catch by 70.30%, bigeye tuna (Thunnus obesus) by 20.19% and skipjack tuna (Katsuwonus pelamis) by 0.52%. The frequency distribution of yellowfin tuna length ranges from 23-171 cmFL where during 2019 it was dominated by sizes <100 cmFL as much as 82.42%. The SST range in January is 290C-310C, optimal fishing is at 29.80C-30.40C, April is in the range of 30.20C-31.70C, optimal fishing is at 30.90C-31.30C, in May is in the range of 27.40C-31,40C the optimal catch is in the temperature range of 27.80C -30.80C, in June is 27.40C -280C the optimal catch is in the temperature range 27.60C-27.850C, in September 27.40C-29.50C the optimal catch is at a temperature range of 27, 80C -28.50C, and in December the range of 29.40C-31.50C is optimal for catching at a temperature range of 30.40C -31.20C

Современное состояние промысла атлантического лосося в низовьях реки Северной Двины

The aim of the research was to assess the current state of the salmon fishery in the lower reaches of the Northern Dvina River. The material of the research is based on the data of the territorial departments of the Federal Agency for Fishery, regional authorities, and the commission for regulating the production (catch) of anadromous fish species. At present, the importance of salmon fishing as an important source of the population’s well-being has decreased. The contribution to the regional economy has also decreased. Average annual catch of Atlantic salmon in the fishery was 4.3 tons in 2010-2021. In 2020-2022 the fishing areas of second stage were formed and the fishing areas for the remaining fishermen become more concentrate. The reduction of fishing areas has led to a decrease in the number of used fishing gear and salmon catches. At the same time, the catch per effort decreased slightly, and the development of salmon catch volumes remains at a high level, which indicates a distortion in catch statistics. The results of the research can be used to develop measures to regulate the Atlantic salmon fishing in the lower reaches of the Northern Dvina river.

Oceans justice: Trade-offs between Sustainable Development Goals in the Seychelles

The marine environment represents an important resource for the promotion of sustainable development. The Sustainable Development Goal (SDG) 14, Life Below Water, highlights the need to balance the economic, social, and environmental dimensions when using the World’s oceans. However, trade-offs arise between the implementation of SDG goals and the well-being of different groups of people. The use of justice mechanisms is critical for achieving social equity outcomes from ocean use. Trade-offs in implementation between SDG14 and other SDGs in the Seychelles are examined through the lens of distributive and procedural justice. Content analysis of grey and policy literature and qualitative data derived from stakeholder workshops and focus group discussions are used to examine trade-offs between expanding marine protection through the Blue Economy initiative and Marine Spatial Planning (MSP), and the livelihoods and well-being of artisanal fishers. MSP limit fishers’ access to marine resources through spatial, temporal, and permanent prohibitions on access to key fishing areas and gear use that negatively impact upon food security, subsistence livelihoods and well-being. These trade-offs reduce capacity to attain other SDG goals linked to alleviating poverty, hunger and good health and well-being. Consultation processes, by not giving adequate voice to fishers concerns and local knowledge, raise issues of procedural fairness. Trade-offs are largely borne by weaker socio-economic groups, leading to a failure to address issues of distributive fairness. Our research shows that the promotion of sustainable futures in the Seychelles remains elusive unless matters in relation to distributive justice are addressed and procedural fairness is provided. How justice mechanisms can be used in pursuit of social equity from ocean use is explained, and avenues for further research outlined.

Eksistensi UNCLOS 1982 dalam Upaya Penegakan Hukum Laut Internasional di Perairan Negara Pantai

The United Nations Convention on the Law of the Sea 1982 (UNCLOS 82) is an international treaty resulting from the United Nations Conference on the Law of the Sea. The Law of the Sea Convention defines the rights and responsibilities of states in the use of the world's oceans and establishes guidelines for business, the environment, and the management of marine natural resources. The problems are: First, how is the existence of UNCLOS 82 in the efforts to enforce international maritime law in Indonesian waters? Second, how is the implementation of UNCLOS 82 on the Indonesia vs Tiongkok conflict in Natuna? The method used is normative juridical, with an approach to legal principles. while the data analysis is a qualitative juridical analysis, namely analyzing the identification of problems based on secondary data in the form of primary legal materials, secondary legal materials and tertiary legal materials. The results of this study are: First, the existence of UNCLOS 82 in efforts to enforce international maritime law in Indonesian waters is regulated in Article 37 (1) UNCLOS 82. Based on the provisions of Article 73 (1) of UNCLOS 1982, the coastal state in exercising its sovereign rights can board ships, examine, arrest and carry out judicial proceedings, as necessary to ensure compliance with the laws and regulations established by him in accordance with the provisions of the Convention. Furthermore, Article 73 paragraph (2) of Unclos 1982. The coastal state may be subject to court proceedings, as necessary to ensure compliance with the laws and regulations it has established in accordance with the provisions of this Convention. Second, the implementation of UNCLOS 82 in Natuna includes first, improving the capture fisheries licensing system and mechanism. The number of fishing vessels allowed to operate in a fishing area does not exceed the number of catches allowed (80% MSY) so that the capture fisheries business can take place profitably and sustainably.

Galanin expression varies with parental care and social status in a wild cooperatively breeding fish

As many busy parents will attest, caring for young often comes at the expense of having time to feed and care for oneself. Galanin is a neuropeptide that regulates food intake and modulates parental care; however, the relative importance of galanin in the regulation of feeding versus caring by parents has never been evaluated before under naturalistic settings. Here, we assessed how expression of the galanin system varied in two brain regions, the hypothalamus (which regulates feeding) and the preoptic area (which modulates social behaviours including care) in a wild cichlid fish, Neolamprologus pulcher. Females with young had higher hypothalamic expression of galanin receptor 1a, and the highest expression of galanin and galanin receptor 1a was observed in females that foraged the least. However, expression of five other feeding-related neuropeptides did not change while females were caring for young suggesting that changes in the hypothalamic galanin system may not have been directly related to changes in food intake. The preoptic galanin system was unaffected by the presence of young, but preoptic galanin expression was higher in dominant females (which are aggressive, regularly reproduce and care for young) compared to subordinate females (which are submissive, rarely reproduce but often help care for young). Additionally, preoptic galanin expression was higher in fish that performed more territory defense. Overall, our results indicate that galanin has brain-region-specific roles in modulating both parental care and social status in wild animals.

Sea cucumber catch reconstruction and species composition as determined by seizures analyses from the IUU fishing in the Campeche Bank, Mexico

Between 2010 and 2018, the sea cucumber fishing in the Campeche Bank, Mexico, was a flourishing fishery showing increasing landings followed by a precipitous decline, where illegal, unreported, and unregulated fishing (IUU) was an important factor to its deterioration. Currently, despite this fishery is under permanent fishing ban since 2019, the IUU fishing prevails. This work aims to reconstruct the past sea cucumber catch, and species composition, in this region based on seizures analyses, between 2010 and 2021, collected from official documents. We estimated the total IUU catch of sea cucumber at 8117.6 t and detected that fishery statistics, based on the sea cucumber fishery in the southern Gulf of Mexico reported to FAO, have information gaps indicating overexploitation of Isostichopus badionotus. Our current assessment must be used cautiously, and may serve to justify the need to conduct these analyses in order to understand the reality of IUU fishing in the region. We recommend incorporating fishers’ community programs in order to deter the IUU fishing through active participation of legal fishing dealers, in agreement with fisher cooperatives or guilds, which are eager to support the sea cucumber fishery in the Yucatan and also implementing fishing refuge areas (FRAs) for the development of guided and supervised stock restoration campaigns.

The role of macroalgae as nursery areas for fish species within coastal seascapes

Abstract One of the most critical ecosystem functions provided by shallow coastal habitats is as nurseries for the juveniles of fish. Many of the studies that have assessed the nursery function of structurally complex coastal habitats have compared seagrass with unstructured sand and mud and as such, seagrass has emerged as the most important coastal nursery habitat for juvenile fishes. Although considerably less work has focussed on the nursery provision of structurally complex macroalgae within coastal nursery seascapes, recent work has started to highlight that the nursery provision of canopy-forming macroalgae may in fact be comparable with that of seagrass. This review collates research published on the important nursery role of macroalgae within both tropical and temperate coastal seascapes and highlights the importance of smaller canopy-forming brown algae from the Fucalean genera (particularly Sargassum spp.) as core nursery areas for juvenile fishes, particularly emperors (Lethrinidae), rabbitfishes (Siganidae), wrasse and parrotfishes (Labridae), goatfishes (Mullidae), groupers (Serranidae), surgeonfish (Acanthuridae) and damselfish (Pomacentridae) within tropical back-reef systems. Similarly, in temperate nursery seascapes, fucoid (Cystoseira spp.) and macroalgae-dominated reefs were important nursery habitats for damselfish (Chromis chromis), groupers and numerous species of wrasse and sparids (Sparidae). Although the overall density of juvenile fish was not shown to be higher in kelp relative to other temperate nursery habitats, kelp was important in the recruitment of Notolabrus celiodotus (wrasse), Paralabrax clathrus (Serranidae), Brachyistius frenatus (Embiotocidae), Heterostichus rostratus (Clinidae) and Sebastes spp. (Scorpaenidae). Although not interchangeable (fish communities were often different), the nursery function of structurally complex macroalgae was found to be similar to that of seagrass in both temperate and tropical seascapes.

By-catch in the specialized fishery of target crab species near Kamchatka

Results of the assessment of by-catch in the specialized fishery of target crab species are presented. The studies covered three fishing areas: off Western Kamchatka (Kamchatka-Kuril and West Kamchatka sub- zones) and off the southeastern coast of Kamchatka (Petropavlovsk-Komandorskaya subzone). In addition to the target object, the catches included both non-target species of crabs and representatives of other groups of animals: fish and invertebrates. The by-catch of fish included representatives of several genera, the most common being Pacific cod (Gadus macrocephalus), Irish lords (Hemilepidothus sp.) and snailfishes (Careproctus sp.). Among invertebrate representatives in the by-catch, octopuses (Octopus sp.) most often prevailed by weight in the fishery of red king crab (Paralithodes camtschaticus) off Western Kamchatka and Tanner crab (Chionoecetes bairdi) off Eastern Kamchatka.

Recreational fishing pressure impacts the density and behaviour of the western rock lobster (Panulirus cygnus, George): evidence from small, no-take marine reserves

Abstract It is unknown whether lobster behaviour is sensitive to fishing, as has been previously suggested for fish. This study investigated the impacts of recreational fishing on the wariness of western rock lobster (Panulirus cygnus, George) through comparisons between fished sites and no-take reserves (NTRs) at Rottnest Island. We used visual census to survey the density and size structure of lobster at sites inside and outside three comparable NTRs, and baited remote underwater video to study the behaviour of lobster at comparable sites. The density of legal-sized P. cygnus was twice as high within NTRs (0.34 ± 0.05) than fished sites (0.16 ± 0.03). P. cygnus also spent less time with bait in fished sites (0.42 ± 0.15 min) than NTRs (1.15 ± 0.28 min). This study provides the first evidence that behaviour of decapods, namely P. cygnus, is sensitive to noninjury-related disturbance associated with recreational fishing, with higher wariness in fished areas. Investigation is required into potentially confounding biotic and abiotic factors to further explore the applicability of lobster wariness as an indicator for fishing pressure.

Implication of adipocytes from subcutaneous adipose tissue and fatty acids in skin inflammation caused by λ-carrageenin in gilthead seabream (Sparusaurata)

The role of subcutaneous adipose tissue adipocytes and the effects of fatty acids on carrageenan-induced skin inflammation in gilthead seabream (Sparus aurata) were studied. Fish were injected intramuscularly with phosphate-buffered saline (control) or λ-carrageenin (1%), and skin samples collected at the injection site at 3 and 6 h post-injection (p.i.) were processed for histological study. In addition, the presence and levels of lipid classes, fatty acid methyl esters (FAME) and eicosanoids were evaluated in the skin samples obtained from the injected areas. Histological results indicated an increase in adipocyte area in fish sampled at 3 h p.i. with λ-carrageenin compared to fish in the control group. Furthermore, the frequency of adipocytes between 4500 and 5000 μm2 was increased at 6 h in the λ-carrageenin group compared to the control group. Analysis of lipid classes found that fish injected with λ-carrageenan showed increased free fatty acid (FFA) and sphingomyelin content at 3 and 6 h, respectively, compared to the control group. An increase in saturated fatty acids (SFA), n-6 polyunsaturated fatty acids (PUFA), and a decrease in the values of monounsaturated fatty acids (MUFA), n-3 PUFA and minor fatty acids were observed in fish skin at 6 h after λ-carrageenin injection, with respect to the values obtained in the control group. Regarding the analysis of eicosanoids, an increase in hydroxyeicosatetraenoic acid (5-HETE) was detected in the skin of fish at 6 h post-carrageenin injection compared to the control group. The presented results indicate the contribution of adipocytes and fatty acids in the development and regulation of the inflammatory response triggered by λ-carrageenin in gilthead seabream skin.

Human dietary exposure to dioxins and dioxin-like PCBs through the consumption of Atlantic herring from fishing areas in the Norwegian Sea and Baltic Sea

The concentrations of dioxins [polychlorinated dibenzo-p-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs)], and dioxin-like polychlorinated biphenyls (DL-PCBs) in Atlantic herring depend on the fishing area. These substances originate from various anthropogenic sources and accumulate in the environment and in food. The influence of country-specific contaminant concentrations on human dietary exposure was studied exemplary for herring to show the influence of fish origin. PCDD/F and DL-PCB concentrations in herring from the Norwegian Sea and the Baltic Sea were combined with country-specific herring consumption. Herring concentrations showed geographical variation. For herring consumers, the 50th percentile dietary exposure to the total sum of PCDD/Fs and DL-PCBs amounted to 1.2 and 8.9 pg WHO-2005-TEQ/kg BW/week for Norway and Germany, respectively. The different exposure was mainly related to higher concentrations in herring from the Baltic Sea, rather than in herring from the Norwegian Sea. If contaminant concentrations are influenced by geographical origin, this should be integrated into the dietary exposure assessments. For herring, relevant fishing areas should be integrated into the sampling strategy to generate concentration data. The usage of country-specific data could refine exposure assessments.

From policy to practice: Addressing bycatch for marine species-at-risk in Canada

Unintended bycatch of depleted or vulnerable marine species is an unsolved conservation issue that undermines the sustainability of fisheries worldwide. In Canada, policy incentives to address bycatch of vulnerable species-at-risk have become more prominent in recent years. Yet bycatch risk has been difficult to quantify and mitigate, in part due to large data gaps in fisheries observation and monitoring. Here we suggest the use of novel modelling frameworks to optimize spatial management strategies for bycatch mitigation. We utilize spatiotemporal modeling of fisheries-independent survey data to predict high-risk regions for three at-risk skates (family Rajidae) in Atlantic Canada. We use these identified regions to evaluate the relative reduction in bycatch risk that can be expected by closing targeted bycatch-protection zones on the western Scotian Shelf to bottom-trawl fishing, and further examine the relative costs to the fishing industry that such closures may impose. We show that when closures are precisely targeted on high-bycatch risk areas, relative costs to industry are minimal by affected fishing area (1.25 ± 0.62 % total area) or displaced landings (0.28 ± 0.14 % by weight of catch). To reduce bycatch risk by 50 % for all three vulnerable skates, less than 10 % of landed catch weight is displaced. These results can be used to reduce bycatch encounters for any endangered, threatened or protected species through spatially targeted conservation measures. We conclude that new approaches to the analysis and mitigation of spatial-temporal bycatch patterns can help to meet regulatory or market-driven requirements for bycatch reduction at low cost.

Assessing the use of marine protected areas by loggerhead sea turtles (Caretta caretta) tracked from the western Mediterranean

Up to date 264 Marine Protected Areas (MPAs) have been declared in the western Mediterranean Sea. The management plans of 25 of these MPAs include the loggerhead sea turtle (Caretta caretta) as a priority species to protect. However, the actual use of these MPAs by the species remains unknown. Therefore, it is important to assess their contribution to loggerhead conservation in the area. To this end, satellite tracking data of 103 loggerhead turtles of varying sizes and life stages released in Spanish Mediterranean waters and Southern Tyrrhenian Sea over the 2003–2018 period were herein used. Home range and use of MPAs by tracked loggerhead turtles were analysed using post-processed state-space model locations. The tracked turtles visited several Mediterranean MPAs, but barely used them (mean percentage of monitoring time = 12.6 ± 18.2 %). There was very little overlap between turtle’s core areas and tracks with the protected areas. Indeed, most of the core areas and high-density areas estimated (>85 %) were not included within any of the MPAs. Furthermore, less than 5 % of the Mediterranean MPAs were used by any tracked loggerhead sea turtles. Most of these MPAs have no protection measures that focus on this species. Loggerheads mainly use wide oceanic zones and international waters, which are difficult to protect. A high-use core area was identified for loggerhead turtles, located at the western waters of the Algerian Basin, an important fishing area outside any designated MPA and with no protection measures that focus on marine turtle conservation. We conclude that existing MPAs in the western Mediterranean may not contribute enough to loggerhead turtle conservation. We propose potential MPAs designations to be considered for loggerhead sea turtle conservation in the Mediterranean Sea at the Alboran Sea, the Algerian basin, the Northern area of the Strait of Sicily, Northeast Tunisian waters, waters around Malta, waters at the Tyrrhenian Sea and at the Ionian Sea.

Characteristics of fishery in open sea and conventional areas of the World ocean in 2020 according to satellite monitoring data and prospects for the development of the Russian fishery in these areas

One of the strategic goals of the Russian fishing industry in modern conditions is to expand the activities of the fishing fleet to the open ocean areas. Based on modern data from satellite monitoring of fishing vessels in the World Ocean for 2020, the paper provides a characteristic of the state of oceanic fisheries. The most active fishing zones in the open part of the World Ocean outside the exclusive economic zones of coastal states, which may be of interest for the development of domestic oceanic fishing, have been identified and described. The most active fishing takes place in the open areas of the World Ocean, which are not covered by the regulation of regional fisheries organizations, and especially active is the fishing for species that are not regulated by them. First of all, squid are such commercial species. Tunas and other pelagic predators are also promising species in open areas of the World Ocean. The main types of fishing vessels in the open ocean are longline fishing vessels, jigging vessels and purse seiners. The information provided will be in demand when organizing the fishing of biological resources in areas beyond national jurisdiction, as well as preparing exploratory research expeditions to promising fishing areas.

PRESERVATIVES FOR EXTENDING SHELF LIFE OF FISH BY USING NANOPARTICLES BASED ON NANO ICE

Nanotechnology is a branch of science that basically deals with synthesi of nano-size particles. A nanoparticle is an ultrafine particle, or a tiny particle that ranges between 1 to 100 nanometers in size and is undetectable by the human eye. Nanoparticles types are commonly divided into two main groups:- organic and inorganic Organic groups include lipsones, hybrid, micelles, dendriners and compact polymeric nanoparticles. Inorganic group includes quantum dots, silica,fullernes and metal nanoparticle. Artificial nanoparticles can be created from any solid or liquid material, including metals, dielectrics, and semiconductors. Nanoparticles have other physical properties that must be measured for a complete description such as size, shape, dispersion state,surface properties and crystallinty.In the current research work, collected some water from fish area and analyse bacteria responsible for spoilage of fish which are pseudomonas,Escherichia coli,Achromobacter,Serratia, Micrococcus,Staphylococcus aureus.Then isolate bacteria for suitable media (MSA,NAM ).Organic acid and bacteriocins from bacteria showed good antimicrobial activities against spoilage bacteria.Plant derived antimicrobials could prolong fish shelf life and decrease lipid oxidation.Nanoparticles were synthesized of mainly Zinc,Copper,Magnesium,Silver and their characterization were done using UV visible spectrophotometer,Zeta potential, PSA(Particle size Analyser).Different ice crystal of different nanoparticles of Zn,Ag,Mg,Cu shows to prolong the shelf life of fish.Hence nanoparticles can be a great source for preserving and enhancing the shelf life of fish.

Catch orientation and public lake stocking preferences: A typology of freshwater anglers

Angler populations at public fishing areas are often heterogenous, implying that they seek a variety of fishing experiences. Understanding the typology of anglers that value different experiences and comparing their management preferences helps fishery managers meet angler expectations and enhance satisfaction. This study clustered a sample of the freshwater angler population in Tennessee based on the importance placed on catch-related aspects of fishing and compared the demographic characteristics, fishing behavior, public lake stocking preferences, and importance of non-catch-related aspects of fishing of the different clusters. A hierarchical cluster analysis of survey responses collected with a mixed-mode survey yielded four distinct angler clusters that varied in the importance that they placed on the catch-related aspects of fishing: Trophy anglers (30%), Native fish enthusiasts (45%), Non-specific consumers (17%), and Non-consumptive anglers (8%). There were significant differences in the demographic characteristics, fishing behavior, importance of non-catch-related aspects of fishing and preferred fish of the identified clusters. Findings from this study offer important insights to fishery managers on the underlying variation in the angler population that could inform the selection of fish taxa for stocking public lakes.