Fisheries Research最新文献

{"title":"Identifying and reducing climate uncertainty in fisheries management reference points","authors":"André E. Punt ,&nbsp;Michael G. Dalton ,&nbsp;W. Christopher Long ,&nbsp;Wei Cheng ,&nbsp;Albert J. Hermann ,&nbsp;Kirstin K. Holsman","doi":"10.1016/j.fishres.2025.107523","DOIUrl":"10.1016/j.fishres.2025.107523","url":null,"abstract":"<div><div>Modelling has predicted that reductions in ocean pH and increases in temperature will reduce vital rates (survival and growth) of North Pacific crab stocks and hence the target levels of fishing mortality consistent with sustainable harvesting. However, these predictions have been based on the best estimates of the effects of changes in ocean pH and temperature on vital rates from laboratory experiments. We quantified the effects of several climate and market sources of variability in Alaskan red king and southern Tanner crab fisheries on predicted optimal fishing mortality rates, including changes in ocean chemistry and temperature on vital rates, non-linear relationships between prices, costs and catch, and the uncertainty in population dynamics models. The declines in survival consistently lead to predictions of a reduction in productivity and hence the optimal level of fishing intensity over time, but the extent of change is uncertain. Uncertainty related to the effects of ocean pH and temperature on vital rates and variability among Earth System Models and future emission scenarios are the dominant sources of uncertainty, although potential fluctuations in prices and costs are also consequential. Further, simulations are used to explore the relationship between changes in ocean pH or temperature and vital rates (additional experimental replicates and a wider range of levels of ocean pH in experiments) and hence identify approaches to reduce the uncertainty in estimates of future projections of target fishing mortality rates. Importantly, we demonstrate that optimal approaches to reducing uncertainty depend on life stage (juvenile growth for red king crab and larval survival for southern Tanner crab), and the optimal experiment depends on species (increasing the range of pH levels for red king crab vs increasing sample sizes for southern Tanner crab). The results of this study can inform priorities for future ocean acidification-related laboratory experiments and provide a basis for evaluating “investment in research” more broadly.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"291 ","pages":"Article 107523"},"PeriodicalIF":2.3,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145050186","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of shell banding in an arcid cockle alongside trace-element concentrations to evaluate potential suitability for age estimation","authors":"Patrick Reis-Santos ,&nbsp;Rhiannon A. Van Eck ,&nbsp;Charlotte Gauthier ,&nbsp;Joseph B. Widdrington ,&nbsp;Rowan C. Chick ,&nbsp;Bronwyn M. Gillanders ,&nbsp;Matthew D. Taylor","doi":"10.1016/j.fishres.2025.107522","DOIUrl":"10.1016/j.fishres.2025.107522","url":null,"abstract":"<div><div>Arcid clams or cockles (Arcidae) are widespread sediment-associated bivalves that support commercial, recreational and cultural fisheries. Despite their importance, ageing in these species has received little attention, constraining stock assessment to length-based models and data limited approaches. In this context, sclerochronology (growth increments) and sclerochemistry (chemical proxies) offer valuable tools for population analysis and environmental reconstructions. Here, we investigated shell banding in Sydney Cockle (<em>Anadara trapezia</em>) alongside shell chemistry to assess the potential suitability for ageing. Specifically, we examined whether variation in Mg:Ca and Sr:Ca was associated with shell bands, as a means of validating seasonal growth increments. Banding patterns correlated closely with seasonal variation in shell chemistry, and application of innovative peak detection algorithms (spline quantile regression, and split moving window analysis) to chemical data improved the objectivity of increment identification, particularly for Mg:Ca and in larger, older shells. Overall, the results indicated that dark shell bands in Sydney Cockle are most likely annuli, and are likely to be appropriate for determining age composition and growth in the species. By enhancing objectivity and consistency, particularly for Mg:Ca, our integrated approach supports more robust age and growth assessments. The protocol developed for ageing and chemical analysis is relevant for ageing other arcid cockle species, but further validation work will improve confidence in ageing data using this approach.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"291 ","pages":"Article 107522"},"PeriodicalIF":2.3,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Latitudinal variation in age and growth of a harvested, rocky-reef gastropod (Turbinidae)","authors":"Kate M. Seinor ,&nbsp;Hamish A. Malcolm ,&nbsp;Kirsten Benkendorff ,&nbsp;Stephen D.A. Smith ,&nbsp;Robert G. Creese ,&nbsp;Steven W. Purcell","doi":"10.1016/j.fishres.2025.107521","DOIUrl":"10.1016/j.fishres.2025.107521","url":null,"abstract":"<div><div>In Australia, the military turban <em>Turbo militaris</em> Reeve 1848 is culturally, commercially and recreationally fished. Fishery regulations include a bag limit of 20 snails and a minimum legal-size limit of 75 mm. Yet, there is limited biological knowledge to inform management. Mark−recapture surveys were used to assess growth and develop age-and-growth models for <em>T. militaris</em> at two subtropical (29.4 °S and 29.8 °S) and two temperate (both 32.7 °S) rocky shores in eastern Australia. Growth varied between subtropical and temperate regions separated by &lt; 400 km. Temperate snails attained a larger asymptotic size than subtropical snails (108 mm vs 94 mm), a greater growth coefficient (<em>K</em>) (0.57 y⁻¹ vs 0.29 y⁻¹), a higher rate of natural mortality (<em>M</em> = 0.57 y⁻¹ vs 0.37 y⁻¹) and shorter lifespan (<em>T</em>_max = 5 years vs 10 years). Sexual maturity (37 mm, 95 % CI: 35–39 mm) was attained by temperate snails at 0.7 years (range: 0.7–0.8 years), allowing ∼1.5 years before entering the fishery. In contrast, subtropical snails reach sexual maturity at 1.7 years (range: 1.6–1.8 years), having ∼4.4 years before reaching the harvestable size. Our findings indicate that current minimum legal-size limits are appropriate across the fishery for ensuring population replenishment. Yet, climate change may impact the growth pattern of <em>T. militaris</em>. The fast-growth and shorter lifespan of temperate snails suggests greater resilience to environmental stressors due to higher population turnover. In contrast, subtropical snails likely have slower population recovery, reflecting greater vulnerability to stressors or depletion by overfishing.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"291 ","pages":"Article 107521"},"PeriodicalIF":2.3,"publicationDate":"2025-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The capability of electronic monitoring to measure logbook reporting performance and improve data for scientific analyses","authors":"Timothy J. Emery,&nbsp;Rocio Noriega,&nbsp;Mahdi Parsa,&nbsp;Don Bromhead,&nbsp;Trent Timmiss","doi":"10.1016/j.fishres.2025.107518","DOIUrl":"10.1016/j.fishres.2025.107518","url":null,"abstract":"<div><div>Electronic monitoring (EM) systems are used to collect fisheries dependent data to support scientific analyses and management decision-making. In Australian Commonwealth fisheries, EM is also used to validate and improve logbook data reporting at the individual vessel level through the provision of consistent feedback to fishers on their logbook reporting. We compared five years of EM and logbook reported catch numbers for both retained and discarded key tuna and billfish species and, interactions with endangered, threatened and protected (ETP) species in the Australian Eastern Tuna and Billfish Fishery (ETBF). This was undertaken to examine congruence at an individual vessel level and determine how both EM and logbook reporting can potentially be improved in the future. At a fleet-wide level, overall congruence was higher for retained than discarded catch and higher for ETP groups (i.e., seabirds) than at an ETP species (i.e., wandering albatross) taxonomic level. Importantly, vessel-level estimates of congruence revealed significant inter-vessel variation in logbook reporting performance. For example, a small number of vessels were not reporting any bycatch and discards despite EM analysts observing these occurrences on these vessels, whilst other vessels had perfect congruence for some species across all audited sets. These results highlight the capability of EM to identify vessels with general (i.e. universal) or specific (e.g. particular species) logbook reporting deficiencies, that enable managers to undertake either incentive-based, education-based or (where required) compliance-based targeted actions to ensure that those vessels improve their future logbook reporting. Ultimately this approach will improve data inputs for scientific analyses and the fisheries management decisions that rely on them.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"291 ","pages":"Article 107518"},"PeriodicalIF":2.3,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A meta-analysis of immediate and delayed discard mortality of red snapper (Lutjanus campechanus)","authors":"Chloe Ramsay ,&nbsp;Matthew D. Campbell ,&nbsp;Beverly Sauls","doi":"10.1016/j.fishres.2025.107524","DOIUrl":"10.1016/j.fishres.2025.107524","url":null,"abstract":"<div><div>Red snapper (<em>Lutjanus campechanus)</em> is an economically important fishery in the Gulf of America (formerly the Gulf of Mexico). This species is subject to discard mortality due to barotrauma. Novel discard mortality research on this species has estimated delayed mortality in addition to immediate mortality at the surface (<em>i.e.,</em> swim or float). To determine how this combined mortality measurement changes red snapper discard mortality, we conducted a meta-analysis, combining 11 studies, with 92 distinct estimates from 34 years of research. We assessed if depth, season, release method, or region predict discard mortality. We found a significant positive relationship between depth and discard mortality and that, in the western Gulf, fishing in the summer significantly increases discard mortality compared to fishing in other seasons and regions. Analysis of studies with well-defined release method treatments revealed that venting and descending generates a 14.6 % decrease in estimated release mortality compared to no barotrauma mitigation. We estimate a 31 % discard mortality at 33 m, the median fishing depth of the private recreational fleet; this is more than double the discard mortality estimate generated by a previous meta-analysis based on immediate mortality alone. Given that we generated estimates from both immediate mortality and delayed mortality, we propose that these updated, higher estimates of discard mortality are more representative of the mortality experienced by this recreational fishery.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"291 ","pages":"Article 107524"},"PeriodicalIF":2.3,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145021016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Seasonal dynamics of the reproductive effort and first maturity of Chinese hat snails Trochita trochiformis (Born, 1778) in Guerrero, Mexico: Towards a sustainable fishery management","authors":"Juan Carlos Cerros-Cornelio ,&nbsp;Rafael Flores-Garza ,&nbsp;Alma Rubí Castrejón-Ríos ,&nbsp;Jesús Guadalupe Padilla-Serrato ,&nbsp;Pedro Flores-Rodríguez ,&nbsp;Carmina Torreblanca-Ramírez ,&nbsp;Carmen Rodríguez-Jaramillo ,&nbsp;José Luis García-Corona","doi":"10.1016/j.fishres.2025.107520","DOIUrl":"10.1016/j.fishres.2025.107520","url":null,"abstract":"<div><div>The Chinese hat snail <em>Trochita trochiformis</em> is a valuable gastropod for artisanal fisheries on the southeast coast of Guerrero, in the Mexican Pacific. The knowledge of the reproductive biology of this species is of the utmost importance to assess the renewal capacity of natural stocks, thus ensuring sustainable management strategies, particularly in the case of this heavily exploited resource. Here, we investigated gametogenesis, reproductive effort and the size at first maturity of <em>T. trochiformis</em> over a 2-year cycle using qualitative and quantitative histological techniques. Gonad development was classified into 6 different stages for both males and females, ranging from immature to spent sexual structures. Moreover, the first records of protandric sex reversal were reported for this species. Snails were able to reproduce throughout the year, with maximum peaks of gonad development occurring during winter at minimal sea surface temperatures of around 27 °C; whereas spawning and short periods of gametogenic inactivity were observed with rising temperatures (27 °C to ∼31 °C) through spring and summer. The results suggest that female gonads have superior breeding capacity than males, yielding the highest oocyte quality during winter. Shell diameter at first maturity (<em>SD</em>₅₀) was estimated for the first time for this species at 44.8 mm for females, and 45.4 mm for males. Therefore, females are prone to overfishing since nearly 12 % of males changed to females after adult size in this study. Based on these results, two management measures could be applied: 1) a banning period from December to February during the season of greatest reproductive effort, and 2) an initial minimal capture size of ∼45 mm, thus allowing the snails to spawn at least once during the reproductive cycle.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"291 ","pages":"Article 107520"},"PeriodicalIF":2.3,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Applications of vessel positional data in next-generation stock assessments","authors":"Chollett I ,&nbsp;S. O’Farrell ,&nbsp;L. Perruso ,&nbsp;S.R. Sagarese ,&nbsp;C. Liese ,&nbsp;K. Dettloff","doi":"10.1016/j.fishres.2025.107519","DOIUrl":"10.1016/j.fishres.2025.107519","url":null,"abstract":"<div><div>Stock assessments constitute the foundation of sustainable fisheries management. Stock assessments, traditionally single-stock, non-spatial, and focusing on the biology, abundance and catch components of the fisheries, can be enhanced with additional information from fishery-dependent sources to provide a more accurate picture of stock status and promote positive management outcomes. We conducted a literature review to assess the potential of vessel positional data to help improve or augment stock assessments, expand stock assessments into the spatio-temporal realm, and better integrate human dimensions of fishing into the assessment process. We cataloged the kaleidoscope of variables that can be extracted from vessel positional data to describe fishing activity, and the methods implemented for their calculation. We found that positional data can be used to inform traditional stock assessments by (1) improving indices of fishing effort and stock abundance traditionally calculated using logbook data; (2) mapping the catch component and quantify fishing effort, fishing extent, spatial aggregation, CPUE, catch, landings, bycatch and discards; (3) understanding the individual and collective behavior of fishers, and their change after natural and policy disturbances. The rich information derived from vessel positional data can be used quantitatively to support region-specific stock assessments or as inputs to spatially-explicit stock assessment models. If not used quantitatively, the information can be used during model development and interpretation. These innovative applications involve no additional data-collection cost and utilize straightforward analyses of near-real-time, accurate, fishery-dependent data gathered within the existing management infrastructure.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"291 ","pages":"Article 107519"},"PeriodicalIF":2.3,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Juvenile salmon prey sampled at sea using a pelagic rope trawl and a frame trawl","authors":"Jeffrey A. Harding ,&nbsp;Ilysa S. Iglesias ,&nbsp;Brian K. Wells ,&nbsp;Whitney R. Friedman ,&nbsp;David D. Huff","doi":"10.1016/j.fishres.2025.107515","DOIUrl":"10.1016/j.fishres.2025.107515","url":null,"abstract":"<div><div>Quantifying the availability of Pacific salmon prey can provide valuable insights into the behavior and survival of commercially important stocks, but discrepancies among sampling gears can make comparisons difficult. We compared two distinct nets, a Methot frame trawl (MIK) equipped with a fine-mesh liner and a pelagic Nordic rope trawl (NRT) equipped with a standard or fine liner, to the stomach contents of juvenile Chinook and coho salmon collected in coastal waters of the northern and central California Current System. Both fine-mesh nets sampled juvenile salmon prey, but while the MIK caught primarily small crustaceans (e.g. larval crabs, shrimp and amphipods) and flatfish larvae, the NRT performed best with other fish larvae, market squid, and krill. Except for squid, this complimentary assortment of fish and invertebrate prey dominated the juvenile Chinook and coho salmon diet in both years. Surprisingly, there was no difference between the abundance or composition of the nekton assemblage sampled with the NRT equipped with a standard or fine liner. While both nets caught similar prey as salmon had consumed, the NRT equipped with a fine liner had the added benefit of capturing juvenile salmon and their dominant prey organisms simultaneously, allowing for synchronous event-scale comparison of consumed and locally available prey.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"290 ","pages":"Article 107515"},"PeriodicalIF":2.3,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144933221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Use of escape gaps in Barents Sea snow crab (Chionoecetes opilio) fishery: Can it reduce bycatch of undersized crabs?","authors":"Kristine Cerbule ,&nbsp;Roger B. Larsen ,&nbsp;Tomas Araya-Schmidt ,&nbsp;Paul D. Winger ,&nbsp;Ivan Tatone ,&nbsp;Gjermund Langedal","doi":"10.1016/j.fishres.2025.107516","DOIUrl":"10.1016/j.fishres.2025.107516","url":null,"abstract":"<div><div>Snow crab (<em>Chionoecetes opilio</em>), like several other crustacean species, are commonly captured using trap gear, which is designed as conical pots. Many such pot fisheries employ some selectivity mechanisms that allow release of captured small or undersized individuals on the seabed, thus improving survival of escapees and reducing workload for the fishers. In snow crab pot fisheries, the selectivity mechanism is based mainly on crab escape through netting meshes (diamond-shaped mesh with sizes ranging from 120 – 140 mm). However, several observations have shown that in commercial snow crab pot fisheries, catches contain undersized snow crabs. Therefore, this study aimed to test the use of escape gaps in the Barents Sea snow crab fishery to evaluate whether it can reduce the bycatch of undersized crabs and sharpen size selectivity. The results showed that both standard pots using mesh selection and test pots with escape gaps reduced catches of undersized snow crabs. However, pots with escape gaps significantly reduced the capture of undersized crabs compared to pots that used only netting mesh selection. This result can be important for the commercial fishery, especially considering areas with larger abundances of small snow crabs, where improved size selection could result in reduced workload for catch sorting and potential crab mortality due to the associated handling.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"290 ","pages":"Article 107516"},"PeriodicalIF":2.3,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144921665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cumulative selectivity benefits of increasing codend and lifting-bag mesh sizes in an Australian whiting (Sillago spp.) boat seine","authors":"Matt K. Broadhurst","doi":"10.1016/j.fishres.2025.107517","DOIUrl":"10.1016/j.fishres.2025.107517","url":null,"abstract":"<div><div>Benthic boat seines (i.e. ‘Danish’ and ‘Scottish’ seining) are globally used to harvest inshore schooling species, however compared to other towed gears such as otter trawls, there have been few studies assessing factors affecting selectivity. Here the importance of ‘lifting-bag’ (a protective bag over the codend) mesh size was investigated as part of a broader initiative to determine suitability for harvesting adult (≥17 cm total length; TL) whiting (<em>Sillago robusta</em> and <em>S. flindersi</em>) under quota in New South Wales, Australia. Two codends made with either 37 or 45 mm stretched mesh openings (SMO) and representing the ranges within many existing Australian configurations were covered with either a conventional (91-mm SMO) or new (216 mm SMO) lifting bag and assessed during three experiments targeting 156 t of quota over 27 days (133 deployments). In experiment 1, alternately fishing the 37-mm codend with each lifting bag did not significantly affect seine selectivity. In experiment 2, the 37- and 45-mm codends with the 91-mm lifting bag were compared and there was a significant increase in the escape of small (&lt;17 cm TL) <em>S. robusta</em> (but not <em>S. flindersi</em> which were caught across larger sizes) from the larger-meshed codend. Increasing the lifting-bag mesh size for the 45-mm codend in experiment 3 increased the escape of most sizes of <em>S. robusta</em> without affecting <em>S. flindersi</em>. The total discarded catch was 61 t and while some unwanted species also showed improved selectivity due to either the 45-mm codend (experiment 2) or increasing its lifting-bag mesh size (experiment 3), there were no significant effects. While the whiting catches (∼1.2 t deployment^–1) and low discarding (28 %) recorded here support assertions of boat-seine efficiency, divergent morphology and/or depth-dependant distributions between <em>S. robusta</em> and <em>S. flindersi</em> may preclude optimising selectivity for both in the same seine. Nevertheless, codend and lifting-bag SMOs approaching ∼43 and 216 mm, respectively should allow some juvenile conspecifics to escape while maintaining targeted catches.</div></div>","PeriodicalId":50443,"journal":{"name":"Fisheries Research","volume":"290 ","pages":"Article 107517"},"PeriodicalIF":2.3,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144916882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}