The small-scale shark fisheries in the southern Gulf of Mexico: Understanding their heterogeneity to improve their management

Pérez‐Jiménez, Juan Carlos; Méndez‐Loeza, Iván

doi:10.1016/j.fishres.2015.07.004

Cited by 36 publications

(61 citation statements)

References 12 publications

(14 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Pérez‐Jiménez and Méndez‐Loeza () and Martínez‐Cruz et al. () estimated CPUE from the same fleet monitored in the present study.…”

Section: Discussionsupporting

confidence: 54%

“…In the southern Gulf of Mexico, target and non‐target shark fisheries include multiple species and multiple gear types. Fishers change fishing gears seasonally or between consecutive fishing trips, and several gear types can also be used during the same trip (Pérez‐Jiménez & Méndez‐Loeza, ). Thus, it was suggested by Pérez‐Jiménez and Méndez‐Loeza () that fisheries that target sharks during the same period and fish the same area over several years with the same fishing gear (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…Although there are official records of total shark catches, separate records of the contribution by small‐scale and medium‐size fleets are not available (SAGARPA, ); however, Castillo‐Geniz, Soriano‐Velázquez and Villaseñor‐Talavera () indicated that the small‐scale fleet accounts for about 40% of the shark catches. The small‐scale shark fishery is heterogeneous, the type of vessels and fishing gears used vary regionally and seasonally (Bonfil, ), and fishers may use two or three different fishing gears in a single trip, sometimes changing fishing gears between consecutive trips (Pérez‐Jiménez & Méndez‐Loeza, ). In addition, this fishery is data‐poor because it fits the characteristics suggested by Pilling et al.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fishery indicators during a predictable aggregation of Atlantic sharpnose sharks Rhizoprionodon terraenovae in the southern Gulf of Mexico: An alternative to assess a heterogeneous data‐poor fishery

Bada‐Sánchez

Pérez‐Jiménez

Martínez‐Cruz

et al. 2019

Fisheries Management Eco

View full text Add to dashboard Cite

Small‐scale fisheries in the southern Gulf of Mexico that catch Rhizoprionodon terraenovae (Richardson) are heterogeneous and data‐poor. Fishery‐dependent monitoring was conducted from 2010 to 2017, including a target season during an aggregation of this species to estimate data‐poor fishery indicators. During the target season, the average sizes for females and males (95.3 and 89.8 cm total length, respectively) were recorded, a global male sex bias (1:1.7), the highest percentage of mature sharks for all years (>89%), the highest values of CPUE (20.1 sharks/day) and size‐selectivity higher than the size at maturity. The spawning potential ratio was over 0.6 (reference point of 0.71) in the combined (target and non‐target) and target seasons for all years, which suggests that the fishery stock is not healthy. Annual assessment of this fishery can be carried out through monitoring during the target season, where management is more feasible to implement.

show abstract

“…Pérez‐Jiménez and Méndez‐Loeza () and Martínez‐Cruz et al. () estimated CPUE from the same fleet monitored in the present study.…”

Section: Discussionsupporting

confidence: 54%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fishery indicators during a predictable aggregation of Atlantic sharpnose sharks Rhizoprionodon terraenovae in the southern Gulf of Mexico: An alternative to assess a heterogeneous data‐poor fishery

Bada‐Sánchez

Pérez‐Jiménez

Martínez‐Cruz

et al. 2019

Fisheries Management Eco

View full text Add to dashboard Cite

show abstract

“…In aquatic systems that are not saturated with anglers, this approach may prove more effective. In addition, managers looking to preserve catch rates may recommend that certain lures not be used at particular times of year, in a manner similar to conservation‐based approaches to protect heavily exploited species (Herrón, Castellanos‐Galindo, Stäbler, Díaz & Wolff, ; Pérez‐Jiménez & Mendez‐Loeza, ). This type of management may not only preserve catch rates, but may also prevent evolutionary change in fished populations, as it has been demonstrated that different types of lures may selectively and differentially capture fish with particular physiological and u characteristics (Wilson et al, ).…”

Section: Discussionmentioning

confidence: 99%

Largemouth bass use prior experience, but not information from experienced conspecifics, to avoid capture by anglers

Louison

Suski

Stein

2019

Fisheries Management Eco

View full text Add to dashboard Cite

Angler satisfaction is based on the presence of catchable fish, and therefore, understanding the mechanisms driving catchability is important for fisheries biologists and managers. Lure avoidance learning (including via social learning) may be a driver of catchability, but these mechanisms have not been explored in depth. To address this, largemouth bass, Micropterus salmoides (Lacépède), were stocked into four ponds, and two were angled using a green plastic worm. Naïve bass were then introduced into all ponds, and angling commenced using a sequence of three lures (green plastic worm, white plastic worm and in‐line spinnerbait). Naive bass stocked alongside experienced conspecifics were not less catchable, indicating socially learned lure avoidance did not take place. Catch rates declined across sessions until the switch to the spinnerbait, when rates temporarily spiked. This suggests that the similarity of a novel lure to previously experienced lures may determine if a fish avoids angling capture.

show abstract

“…Bonnetheads share a similar commercial importance and account for 50% of annual small coastal shark commercial landings in the southeastern United States and 15% of annual small shark artisanal landings in Mexico (Cortés 2005). A recent survey found Atlantic Sharpnose Sharks and Bonnetheads were the two most-captured shark species in the southern GOM off the coasts of Tabasco, Campeche, and Yucatan, Mexico (Pérez-Jiménez and Mendez-Loeza 2015). Dietary information can be found for both Atlantic Sharpnose Sharks and Bonnetheads, but is limited in the northwest GOM.…”

Section: Introductionmentioning

confidence: 99%

Diets of Atlantic Sharpnose Shark (Rhizoprionodon terraenovae) and Bonnethead (Sphyrna tiburo) in the northern Gulf of Mexico

Harrington

Plumlee

Drymon

et al. 2016

GCR

View full text Add to dashboard Cite

Diets of two coastal sharks, Atlantic Sharpnose Shark (Rhizoprionodon terraenovae) and Bonnethead (Sphyrna tiburo), were examined along the Texas and Alabama coasts in the northern Gulf of Mexico (GOM). Atlantic Sharpnose Sharks were collected from the northwest (n= 209) and northcentral (n= 245) GOM regions while Bonnetheads were collected from two locations within the northwest GOM (Galveston, Texas, n= 164; Matagorda, Texas, n= 79). Dietary analysis was conducted using stomach contents identified to the lowest taxonomic level, which were quantified using the index of relative importance (IRI) and non-parametric statistical analyses. Atlantic Sharpnose Sharks were revealed to be primarily piscivorous, with an overall %IRI of 79.76% for teleost fishes. Bonnetheads were shown to prey primarily on crustaceans (90.94% IRI), mainly crabs (22.06% IRI). Diets for Atlantic Sharpnose Sharks and Bonnetheads were evaluated by region and ontogeny, where variations by ontogeny were examined based on length at 50% maturity (L 50 ) values, delineating mature from immature individuals. Atlantic Sharpnose Sharks and Bonnetheads showed a decrease in dietary prey species richness from juveniles to adults using %IRI. Regional dietary differences existed with Atlantic Sharpnose Sharks from the northwest GOM consuming more crustaceans than conspecifics from the northcentral GOM. Bonnetheads collected from Galveston, TX consumed more crab than Bonnetheads from Matagorda, TX, while Bonnetheads from Matagorda, TX displayed a diet with higher prey species richness. Our results highlight differences in diets of two common shark species at both local and regional spatial scales.

show abstract

The small-scale shark fisheries in the southern Gulf of Mexico: Understanding their heterogeneity to improve their management

Cited by 36 publications

References 12 publications

Fishery indicators during a predictable aggregation of Atlantic sharpnose sharks Rhizoprionodon terraenovae in the southern Gulf of Mexico: An alternative to assess a heterogeneous data‐poor fishery

Fishery indicators during a predictable aggregation of Atlantic sharpnose sharks Rhizoprionodon terraenovae in the southern Gulf of Mexico: An alternative to assess a heterogeneous data‐poor fishery

Largemouth bass use prior experience, but not information from experienced conspecifics, to avoid capture by anglers

Diets of Atlantic Sharpnose Shark (Rhizoprionodon terraenovae) and Bonnethead (Sphyrna tiburo) in the northern Gulf of Mexico

Contact Info

Product

Resources

About