Santiago J. Bianchi, Jorge M. Roman, Luis O. Lucifora, Santiago A. Barbini
{"title":"乌拉圭和阿根廷北部海域特有的珍贵资源--里约鳐鱼（软骨鱼类：鳐形目）的年龄、生长和成熟期","authors":"Santiago J. Bianchi, Jorge M. Roman, Luis O. Lucifora, Santiago A. Barbini","doi":"10.1071/mf23088","DOIUrl":null,"url":null,"abstract":"<strong> Context</strong><p><i>Rioraja agassizii</i> is a vulnerable species endemic to the Southwest Atlantic. It is caught by trawl fisheries throughout its range.</p><strong> Aims</strong><p>To determine the age, estimate growth parameters, and age and size at maturity.</p><strong> Methods</strong><p>Ages were determined using vertebrae readings. To fit growth models, a Bayesian framework was employed with the von Bertalanffy, Gompertz and Logistic candidate models. To estimate age and size at maturity, a logistical ogive was fitted to binomial maturity data.</p><strong> Key results</strong><p>Maximum ages determined for males and females were 12 and 11 years respectively. The von Bertalanffy model was selected as the best one and there were no differences between sexes (mean parameters: <i>L</i><sub>∞</sub> = 684.8 mm, <i>k</i> = 0.33 years<sup>−1</sup> and <i>L</i><sub>0</sub> = 105.5 mm). Age and size at maturity were estimated at 3.31 and 4.55 years, and 485.02 and 544.55 mm TL for males and females respectively.</p><strong> Conclusions</strong><p><i>Rioraja agassizii</i> has a moderate growth rate and age at maturity was similar to those of skate species with a similar body size.</p><strong> Implications</strong><p>Because skate species have different maximum ages, growth rates and maturity parameters, we strongly recommend urgent species-specific management measures for the pool of skate species exploited in Argentina.</p>","PeriodicalId":18209,"journal":{"name":"Marine and Freshwater Research","volume":"4 1","pages":""},"PeriodicalIF":1.8000,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Age, growth and maturity of an endemic valuable resource, the Rio skate (Rioraja agassizii (Chondrichthyes: Rajiformes)), off Uruguay and northern Argentina\",\"authors\":\"Santiago J. Bianchi, Jorge M. Roman, Luis O. Lucifora, Santiago A. Barbini\",\"doi\":\"10.1071/mf23088\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<strong> Context</strong><p><i>Rioraja agassizii</i> is a vulnerable species endemic to the Southwest Atlantic. It is caught by trawl fisheries throughout its range.</p><strong> Aims</strong><p>To determine the age, estimate growth parameters, and age and size at maturity.</p><strong> Methods</strong><p>Ages were determined using vertebrae readings. To fit growth models, a Bayesian framework was employed with the von Bertalanffy, Gompertz and Logistic candidate models. To estimate age and size at maturity, a logistical ogive was fitted to binomial maturity data.</p><strong> Key results</strong><p>Maximum ages determined for males and females were 12 and 11 years respectively. The von Bertalanffy model was selected as the best one and there were no differences between sexes (mean parameters: <i>L</i><sub>∞</sub> = 684.8 mm, <i>k</i> = 0.33 years<sup>−1</sup> and <i>L</i><sub>0</sub> = 105.5 mm). Age and size at maturity were estimated at 3.31 and 4.55 years, and 485.02 and 544.55 mm TL for males and females respectively.</p><strong> Conclusions</strong><p><i>Rioraja agassizii</i> has a moderate growth rate and age at maturity was similar to those of skate species with a similar body size.</p><strong> Implications</strong><p>Because skate species have different maximum ages, growth rates and maturity parameters, we strongly recommend urgent species-specific management measures for the pool of skate species exploited in Argentina.</p>\",\"PeriodicalId\":18209,\"journal\":{\"name\":\"Marine and Freshwater Research\",\"volume\":\"4 1\",\"pages\":\"\"},\"PeriodicalIF\":1.8000,\"publicationDate\":\"2024-02-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Marine and Freshwater Research\",\"FirstCategoryId\":\"93\",\"ListUrlMain\":\"https://doi.org/10.1071/mf23088\",\"RegionNum\":4,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"FISHERIES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Marine and Freshwater Research","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1071/mf23088","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"FISHERIES","Score":null,"Total":0}
Age, growth and maturity of an endemic valuable resource, the Rio skate (Rioraja agassizii (Chondrichthyes: Rajiformes)), off Uruguay and northern Argentina
Context
Rioraja agassizii is a vulnerable species endemic to the Southwest Atlantic. It is caught by trawl fisheries throughout its range.
Aims
To determine the age, estimate growth parameters, and age and size at maturity.
Methods
Ages were determined using vertebrae readings. To fit growth models, a Bayesian framework was employed with the von Bertalanffy, Gompertz and Logistic candidate models. To estimate age and size at maturity, a logistical ogive was fitted to binomial maturity data.
Key results
Maximum ages determined for males and females were 12 and 11 years respectively. The von Bertalanffy model was selected as the best one and there were no differences between sexes (mean parameters: L∞ = 684.8 mm, k = 0.33 years−1 and L0 = 105.5 mm). Age and size at maturity were estimated at 3.31 and 4.55 years, and 485.02 and 544.55 mm TL for males and females respectively.
Conclusions
Rioraja agassizii has a moderate growth rate and age at maturity was similar to those of skate species with a similar body size.
Implications
Because skate species have different maximum ages, growth rates and maturity parameters, we strongly recommend urgent species-specific management measures for the pool of skate species exploited in Argentina.
期刊介绍：
Marine and Freshwater Research is an international and interdisciplinary journal publishing contributions on all aquatic environments. The journal’s content addresses broad conceptual questions and investigations about the ecology and management of aquatic environments. Environments range from groundwaters, wetlands and streams to estuaries, rocky shores, reefs and the open ocean. Subject areas include, but are not limited to: aquatic ecosystem processes, such as nutrient cycling; biology; ecology; biogeochemistry; biogeography and phylogeography; hydrology; limnology; oceanography; toxicology; conservation and management; and ecosystem services. Contributions that are interdisciplinary and of wide interest and consider the social-ecological and institutional issues associated with managing marine and freshwater ecosystems are welcomed.
Marine and Freshwater Research is a valuable resource for researchers in industry and academia, resource managers, environmental consultants, students and amateurs who are interested in any aspect of the aquatic sciences.
Marine and Freshwater Research is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science.
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