Relationship of precipitation, freshwater input, and sea level height with the abundance of the white shrimp (Litopenaeus occidentalis; Street, 1871) off Buenaventura, eastern tropical Pacific

Díaz-Ochoa, Javier; Quiñones, Renato A.

doi:10.1016/j.fishres.2008.01.002

Cited by 26 publications

(8 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such correlations appear to be particularly important for penaeids, which inhabit subtropical regions (Vance et al 2003;Robins et al 2005;Díaz-Ochoa and Quiñones 2008). The association between river discharge and catch may be positive (e.g.…”

Section: Introductionmentioning

confidence: 99%

Modelling the possible effects of climate change on an Australian multi-fleet prawn fishery

Scandol¹,

Montgomery²,

Suthers³

2009

Mar. Freshwater Res.

View full text Add to dashboard Cite

Abstract.The relationship between fisheries and climate has been given renewed emphasis owing to increasing concern regarding anthropogenically induced climate change. This relationship is particularly important for estuarine fisheries, where there are documented correlations between river discharge and productivity. The commercial catch of school prawns (Metapenaeus macleayi) has been shown to be positively correlated with the rates of river discharge in northern New South Wales, Australia. In the present study, a simulation model was developed to analyse the dynamics of the stock for 10 years under alternative river discharge scenarios, and the effectiveness of a series of management strategies under these scenarios was examined. A size-based metapopulation model was developed that incorporated the dynamics of school prawn populations in three habitats being harvested by three different fishing methods. The model indicated that both the growth and movement of prawns were affected by the rates of river discharge, and that higher rates of river discharge usually generated increased commercial catches, but this outcome was not certain. It was concluded that the population does not appear to be overexploited and that none of the three alternative management strategies performed better within the model than the current spatio-temporal closures, even under a wide range of river discharge scenarios.

show abstract

Section: Introductionmentioning

confidence: 99%

Modelling the possible effects of climate change on an Australian multi-fleet prawn fishery

Scandol¹,

Montgomery²,

Suthers³

2009

Mar. Freshwater Res.

View full text Add to dashboard Cite

show abstract

“…The absence of information for 2012 may be related to the inactivity of the CFOP due to administrative changes within the National Authority of Aquaculture and Fisheries, a situation that interrupted the continuity in the monitoring of fisheries in Colombia. Other consequences of these administrative changes have been reported by Díaz‐Ochoa & Quiñones (2008), Herrón et al (2018) and Isaza‐Toro et al (2020), but the most significant change in the management of FADs was the revocation of Resolution 2,413 of 2008 of the Colombian Agricultural Institute. This resolution explicitly prohibited the use of FADs in tuna purse‐seine operations in Colombia's exclusive economic zone.…”

Section: Discussionmentioning

confidence: 86%

Fish aggregating devices in the eastern tropical Pacific marine corridor, according to the Colombian Fisheries Observer Program

Isaza-Toro

Selvaraj

Giraldo

et al. 2021

Aquatic Conservation

View full text Add to dashboard Cite

1. Fish aggregating devices (FADs) are floating objects that facilitate the aggregation of fish; those that aggregate pelagic species such as tunas are of particular interest for artisanal and industrial fisheries.2. Due to the increasing use of these devices worldwide, bodies responsible for the administration and management of fishery resources have proposed control and surveillance activities focused on the use of such devices. To achieve this, it is essential to have access to quality information, which is usually obtained through on-board observer programmes such as the Colombian Fisheries Observer Program. 3. Based on the historical records of this programme, and for the first time, the spatial-temporal distribution of the FADs in the eastern tropical sector of the Eastern Pacific Ocean is presented, analysing 166 records of tuna fishing operations carried out between 2009 and 2015. Of the 2,328 sets identified in the records, 957 corresponded to sets on FADs, of which 80.56% were effective and caught 12,246 tons of tuna. 4. The number of sets of FADs increased over time, representing approximately 86.9% of the sets recorded in 2015, compared to 4.8% of this type of set recorded in 2009, with the Eastern Tropical Pacific Marine Corridor being the area of greatest concentration of sets. 5. Considering that the Eastern Tropical Pacific Marine Corridor was designed to promote the conservation and sustainable use of biological diversity in the Eastern Tropical Pacific, this study highlights the need to include as a researchpriority, the potential effect that aggregation devices may have on the biological connectivity processes present in the corridor, as well as on the dynamics of large pelagic fish populations of commercial interest.6. In terms of management of FADs, it is recommended that a precautionary approach be adopted and that regulations related to the maximum number of FADs per vessel be adjusted according to their Inter-American Tropical Tuna Commission class, in addition to assigning a maximum number of sets per vessel.

show abstract

“…Macroinvertebrate species were classified as resident or migratory according to the frequency of use of the estuary by each species (Díaz‐Ochoa & Quiñones, 2008; Gamboa‐García, Duque, & Cogua, 2018; Hendrickx & Sánchez‐Vargas, 2005; Hernández‐Noguera et al, 2016; Mora‐Lara, 1973). The dynamics of the macroinvertebrate community structure were assessed using richness and biomass.…”

Section: Methodsmentioning

confidence: 99%

Influence of water quality on the macroinvertebrate community in a tropical estuary (Buenaventura Bay)

Duque

Gamboa-García

Molina

et al. 2021

Integr Envir Assess & Manag

View full text Add to dashboard Cite

The anthropogenic discharges of inorganic nutrients impact water quality, affecting the macroinvertebrate assemblage and food safety. The main objective of this study was to examine the seawater quality and macroinvertebrate dynamics in muddy habitats of Buenaventura Bay, Colombian Pacific. Macroinvertebrates were captured using artisanal trawl nets during different seasons and along four sampling sites. Multivariate analyses (canonical correspondence analysis and generalized additive model) were used to assess the effects of variations in nitrite, nitrates, phosphate concentrations, and physicochemical variables (salinity, pH, dissolved oxygen [DO], temperature, and total dissolved solids [TDS]) of water on the macroinvertebrate assemblage. Richness was the highest at sites with high salinity and temperature and low concentrations of nitrites and TDS. The densities of the commercial shrimp species Xiphopenaeus riveti and Rimapenaeus byrdi were the highest at sites with higher DO and alkalinity, and lower nitrate concentrations. The swimming crab Callinectes arcuatus was dominant at sites with low water quality. In summary, in the transitional season and at the inner sites of Buenaventura Bay, it was observed the lowest water quality due to high nitrate concentration. High nitrate concentration was highlighted as the main anthropogenic factor that could decrease the capture of target macroinvertebrate species for food and livelihoods of artisanal fishermen and their families. Thus, macroinvertebrate communities may be vulnerable to increased inorganic nutrient inputs, which could affect estuarine water quality and ecosystems services.

show abstract

Relationship of precipitation, freshwater input, and sea level height with the abundance of the white shrimp (Litopenaeus occidentalis; Street, 1871) off Buenaventura, eastern tropical Pacific

Cited by 26 publications

References 27 publications

Modelling the possible effects of climate change on an Australian multi-fleet prawn fishery

Modelling the possible effects of climate change on an Australian multi-fleet prawn fishery

Fish aggregating devices in the eastern tropical Pacific marine corridor, according to the Colombian Fisheries Observer Program

Influence of water quality on the macroinvertebrate community in a tropical estuary (Buenaventura Bay)

Contact Info

Product

Resources

About