Gonadosomatic index and weight/length relationship in females of three penaeoidean shrimps impacted by fisheries on the southeastern Brazilian coast
| Autor: | Ana Elisa Bielert Lopes, Renan Augusto Pereira dos Santos, Mariana Antunes, Isabela Ribeiro Rocha de Moraes, Antonio Leão Castilho, Alexandre Ribeiro da Silva, Rogério Caetano da Costa |
|---|---|
| Přispěvatelé: | Universidade Estadual Paulista (Unesp), Universidade Estadual do Norte do Paraná |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Gonad
QH301-705.5 Science media_common.quotation_subject São Paulo State Biology reproduction Xiphopenaeus kroyeri medicine gonads Biology (General) media_common Allometry Ubatuba biology.organism_classification Shrimp Fishery Gonadosomatic Index medicine.anatomical_structure QL1-991 medicine.symptom Development of the gonads Reproduction Zoology Weight gain |
| Zdroj: | Nauplius, Volume: 28, Article number: e2020045, Published: 04 DEC 2020 SciELO Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Nauplius, Vol 28 (2020) |
| ISSN: | 0104-6497 |
| Popis: | Made available in DSpace on 2021-07-14T10:45:58Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-12-04. Added 1 bitstream(s) on 2021-07-14T11:37:40Z : No. of bitstreams: 1 S0104-64972020000100804.pdf: 569607 bytes, checksum: 985c16b64fc6359e962f1ee4a336da3b (MD5) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) The aim of this study was to evaluate the gonadosomatic index (GSI) and the weight/length ratio in important shrimp populations (Xiphopenaeus kroyeri (Heller, 1862), Litopenaeus schmitti (Burkenroad, 1936), Rimapenaeus constrictus (Stimpson, 1874)) from the northern littoral of São Paulo State. The samples were collected between 2015 and 2016, with 212 females that were identified, classified according to their gonadal development stage, and measured (CL). The gonads were macroscopically classified into immature, spent and developed, and were then removed. Both body (BodW) and gonad (GonW) dry weights were obtained in order to calculate the gonadosomatic index. Weight/length relationship and weight gain rate were assessed. The weight gain presented negative allometry, indicating that the animals grow faster than they gain weight. The weight/length relationship showed a pattern of continuous reproduction, as previously determined for tropical species. From the GSI values, it was possible to separate the three predetermined gonadal stages, proving that macroscopic evaluation is reliable for evaluating the reproductive period of these shrimps. These results can be used as a guide for fishery stocks management and monitoring. Universidade Estadual Paulista “Júlio de Mesquita Filho”, Instituto de Biociências de Botucatu Universidade Estadual do Norte do Paraná Universidade Estadual Paulista “Júlio de Mesquita Filho”, Faculdade de Ciências Universidade Estadual Paulista “Júlio de Mesquita Filho”, Instituto de Biociências de Botucatu Universidade Estadual Paulista “Júlio de Mesquita Filho”, Faculdade de Ciências FAPESP: #2010/50188-8; #2015/13639-5; #2015/01959-5 CNPq: #311034/2018-7 CAPES: #23038.004310/2014-85 |
| Databáze: | OpenAIRE |
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