Integrating Recreational Fishing Behaviour within a Reef Ecosystem as a Platform for Evaluating Management Strategies

Shark depredation (damage to gear and loss of bait or hooked fish by a non-target species) is a common global occurrence. Depredation events by sharks can have negative impacts for the fishers, fishery targeted species and the sharks. It is, therefore important to better understand if learning behaviour of sharks can influence rates of depredation. Recreational fishers within the World Heritage Ningaloo Reef have reported increased rates of depredation by sharks over the last 5 years. This study aimed to determine if sharks are capable of learning to associate intensive recreational fishing activities with a food reward. We also aimed to test if sharks in areas frequently fished were more habituated to recreational fishing activities than those sharks within a no-take marine sanctuary. To simulate fishing activities baited underwater video systems were deployed in the morning (A.M.), midday, and afternoon (P.M.) for six consecutive days in Fished and Unfished sites. A significant decrease in time of arrival and time to first feed of sharks was seen across days at the Fished sites. The Unfished sites had very low numbers of sharks observed (n=3) and therefore was not statistically analysed. The relative abundance of sharks did not significantly increase across days, however there was a negative correlation between lemon sharks (Negaprion sp.) and whalers (Carcharhinus sp.). Our study suggests sharks are capable of being classically conditioned to recreational fishing activities and depredation rates are influenced by fisher behaviour. We have highlighted possible mitigation strategies designed to un-condition sharks to recreational fishing, including modifying fishing practices, use of deterrents based on the sensitivity of shark senses and management strategies. The best approach is likely to be enabling fishers to become more knowledgeable of how and why shark depredation events happen and take appropriate steps to avoid them.

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An agent-based integrated model of recreational fishing and coral reef ecosystem dynamics for site closure strategy analysis

Chan, F., Marinova, D. and Anderssen, R.S. (eds) MODSIM2011, 19th International Congress on Modelling and Simulation. ◽

10.36334/modsim.2011.h3.gao ◽

2011 ◽

Keyword(s):

Coral Reef ◽

Integrated Model ◽

Ecosystem Dynamics ◽

Recreational Fishing ◽

Coral Reef Ecosystem ◽

Strategy Analysis ◽

Agent Based ◽

Reef Ecosystem

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Kajian Kondisi Terumbu Karang dan Strategi Pengelolaannya di Pulau Panjang, Air Bangis, Kabupaten Pasaman Barat

Jurnal Natur Indonesia ◽

10.31258/jnat.16.1.23-31 ◽

2015 ◽

Vol 16 (1) ◽

pp. 23

Author(s):

Angreini Oktarina ◽

Eni Kamal ◽

Suparno Suparno

Keyword(s):

Coral Reef ◽

Swot Analysis ◽

Coral Cover ◽

Management Strategies ◽

Good Condition ◽

Survey Method ◽

Coral Reef Ecosystem ◽

Average Percentage ◽

The North ◽

Reef Ecosystem

Coral reef ecosystems are essential for the survival of marine life, but the presence of coral reef are declined and decayed.Methods used in this study was a survey method. To retrieve the condition of coral cover using the line intercept transectwhile to determine management strategies using SWOT analysis. The average percentage of coral cover in 8 point researchstations at 50.10% are still in the good condition, which is in the north 3 m depth 53.51%, north 7 m depth 68.14%, east 3 mdepth 93.29%, east 7 m depth 15.93%, south 3 m depth 75.17%, south 7 m depth 20.53%, west 3 m depth 41.50%, and west7 m depth 32.79%. The strategies for coral reef ecosystem management, among others: 1) community-based management, 2)forming Kelompok Masyarakat Pengawas (Pokmaswas) institutions, 3) establish in Panjang Island as a marine conservationareas, 4) Ko-Management-based, 5) effort to improve the economy in order to support the increased knowledge of theimportance of conservation and management of coral reef ecosystem.

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Are depredation rates by reef sharks influenced by fisher behaviour?

10.7287/peerj.preprints.708v1 ◽

2014 ◽

Cited By ~ 2

Author(s):

Magen Schifiliti ◽

Dianne L McLean ◽

Tim J Langlois ◽

Matthew J Birt ◽

Peter Barnes ◽

...

Keyword(s):

Food Reward ◽

Management Strategies ◽

Mitigation Strategies ◽

Recreational Fishing ◽

Time Of Arrival ◽

Target Species ◽

Video Systems ◽

Reef Sharks ◽

Negative Impacts ◽

Classically Conditioned

Shark depredation (damage to gear and loss of bait or hooked fish by a non-target species) is a common global occurrence. Depredation events by sharks can have negative impacts for the fishers, fishery targeted species and the sharks. It is, therefore important to better understand if learning behaviour of sharks can influence rates of depredation. Recreational fishers within the World Heritage Ningaloo Reef have reported increased rates of depredation by sharks over the last 5 years. This study aimed to determine if sharks are capable of learning to associate intensive recreational fishing activities with a food reward. We also aimed to test if sharks in areas frequently fished were more habituated to recreational fishing activities than those sharks within a no-take marine sanctuary. To simulate fishing activities baited underwater video systems were deployed in the morning (A.M.), midday, and afternoon (P.M.) for six consecutive days in Fished and Unfished sites. A significant decrease in time of arrival and time to first feed of sharks was seen across days at the Fished sites. The Unfished sites had very low numbers of sharks observed (n=3) and therefore was not statistically analysed. The relative abundance of sharks did not significantly increase across days, however there was a negative correlation between lemon sharks (Negaprion sp.) and whalers (Carcharhinus sp.). Our study suggests sharks are capable of being classically conditioned to recreational fishing activities and depredation rates are influenced by fisher behaviour. We have highlighted possible mitigation strategies designed to un-condition sharks to recreational fishing, including modifying fishing practices, use of deterrents based on the sensitivity of shark senses and management strategies. The best approach is likely to be enabling fishers to become more knowledgeable of how and why shark depredation events happen and take appropriate steps to avoid them.

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Customary and recreational fishing pressure: large-bodied fish assemblages in a tropical, intermittent Australian river

Marine and Freshwater Research ◽

10.1071/mf13042 ◽

2014 ◽

Vol 65 (5) ◽

pp. 466 ◽

Cited By ~ 4

Author(s):

Paul G. Close ◽

Rebecca J. Dobbs ◽

David J. Tunbridge ◽

Peter C. Speldewinde ◽

Danielle M. Warfe ◽

...

Keyword(s):

Fish Assemblages ◽

Management Strategies ◽

Negative Relationship ◽

Recreational Fishing ◽

Fishing Pressure ◽

Intermittent Rivers ◽

Management Techniques ◽

Highly Correlated ◽

Size Limits ◽

Fish Harvest

Permanent waterholes in intermittent rivers of northern Australia support a diverse piscifauna and are popular areas for customary and recreational fishing. The present preliminary study explored the perception that fishing reduces the abundance of targeted, large-bodied species that become restricted to disconnected waterholes during the distinct dry season. River sites in the Fitzroy River catchment, Western Australia, could be clearly classified as experiencing either high or low fishing pressure by using metrics of human ‘accessibility’. The abundance of Hephaestus jenkinsi and Lates calcarifer, targeted by both recreational and customary fishers was highly correlated with accessibility and showed a negative relationship with fishing pressure. Non-target species showed no discernible trend. We estimated that 38% of river length remains subject to relatively low fishing pressure. These preliminary relationships suggest that fish harvest can potentially alter the structure of fish assemblages in disconnected habitats. The potential impact of fishing on the sustainability of fish populations is, most likely, greatest for non-diadromous species and will become more apparent with increasing distance from recolonisation sources. Combining management techniques that maintain recolonisation and recruitment potential with traditional fisheries management strategies (e.g. bag and size limits) presents a suitable approach to mitigate the effects of fish harvesting from tropical intermittent rivers.

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Application of the Ostrom framework in the analysis of a social-ecological system with multiple resources in a marine protected area

PeerJ ◽

10.7717/peerj.7374 ◽

2019 ◽

Vol 7 ◽

pp. e7374 ◽

Cited By ~ 2

Author(s):

Leopoldo E. Palomo ◽

Alvaro Hernández-Flores

Keyword(s):

Marine Protected Area ◽

Management Strategies ◽

Sustainable Use ◽

Recreational Fishing ◽

Commercial Fishing ◽

Governance System ◽

Multiple Resources ◽

Social Ecological ◽

Second Tier ◽

Multi Method Approach

The framework proposed by Ostrom (2009) has become one of the most utilized tools to address the complexity of social-ecological systems. Most cases use this framework to analyze the systems from the perspective of a single resource unit. However, the livelihoods in several coastal communities are diverse, so that the users interact with multiple common-pool resources, which makes their analysis difficult. In this sense, it is important to identify the key elements of management to achieve the sustainable use of the resources. In this study, we were able to do this in a coastal community where commercial fishing, ecotourism, and recreational fishing coexist. The system of interest, located in the state of Quintana Roo, Mexico, was subdivided by resource type using a multi-method approach to data collection including surveys, interviews, and records review. A conceptual map was developed that shows how the second-tier variables are integrated through the governance and actors with the biophysical system. The actors involved in lobster fishing achieved a more complex governance system, followed by the ecotourism and recreational fishing; the complexity of the governance was related with the equity level of the actors. The analysis revealed the research gaps to develop management strategies and improve the sustainability of the system.

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