Length-weight relationships of 24 stream-dwelling fish species from the Atlantic Forest in Rio de Janeiro, Brazil

Manna, Luisa R.; Zandonà, Eugenia; Oliveira-Cunha, Priscila; Mazzoni, Rosana

doi:10.1590/1676-0611-BN-2023-1523

Acessibilidade / Reportar erro

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Short Communication • Biota Neotrop. 23 (3) • 2023 • https://doi.org/10.1590/1676-0611-BN-2023-1523 copy

Length-weight relationships of 24 stream-dwelling fish species from the Atlantic Forest in Rio de Janeiro, Brazil

Relação peso-comprimento de 24 espécies de peixes de riachos da Mata Atlântica do Rio de Janeiro, Brasil

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

The length-weight relationship parameter is important for obtaining fish weight and biomass data with relevant implications about species role on ecosystem functioning. Here we report the length-weight relationship (LWR) for 24 fish species from three streams located in the Atlantic Forest in the Rio de Janeiro State, Brazil. Fish were collected with electrofishing and standard length (cm) and wet weight (g) were measured to obtain the a and b parameters of the Log (W) = Log (a) + b Log (SL) equation. Length-weight relationships for seven out of 24 species (Hypostomus punctatus, Deuterodon taeniatus, Deuterodon hastatus, Deutorodon janeiroensis, Characidium vidali, Characidium interruptum and Rineloricaria zawadiskii) are reported for the first time. The length-weight relationships reported here contribute to the database that can support fish diversity conservation, fisheries management plans and studies on fish biology.

Keywords
biodiversity; conservation; freshwater fish

Species/Family	N	Standard Length (Min-Max) (cm)	Weight (Min-Max) (g)	a (95% CI)	b (95%CI)	R²
Rio Guapiaçu
Characidae
Deuterodon taeniatus	17	6.71–10.69	8.74–35.85	0.031 (0.015–0.067)	2.95 (2.60–3.30	0.956
Bryconamericus ornaticeps	23	3.44–5.07	0.82–3.00	0.018 (0.011–0.030)	3.09 (2.76–3.42)	0.948
Mimagoniates microlepis	44	1.36–4.80	0.04-2.10	0.016 (0.014–0.017)	3.07 (2.98–3.16)	0.991
Heptapteridae
Acentronichtys leptos	19	2.86–7.74	0.156–3.761	0.009 (0.006–0.013)	2.85 (2.63–3.07)	0.977
Pimelodella lateristriga	29	2.7–10.7	0.3–14.1	0.013 (0.010–0.017)	2.93 (2.80–3.07)	0.987
Crenuchidae
Characidium vidali	43	2.42–6.22	0.32–3.75	0.029 (0.022–0.0038)	2.66 (2.48–2.84)	0.956
Poeciliidae
Phalloceros harpagos	18	1.53–2.77	0.10–0.47	0.031 (0.024–0.040)	2.55 (2.17–2.94)	0.924
Loricariidae
Rineloricaria zawadiskii	24	6.14–14.70	1.55–35.0	0.002 (0.001–0.003)	3.60 (3.41–3.79)	0.986
Ancistrus multispinis	9	2.76–7.85	0.56–18.68	0.02 (0.012–0.032)	3.28 (2.98–3.57)	0.990
Callichthyidae
Scleromystax barbatus	20	2.44–6.54	0.47–7.79	0.039 (0.032–0.046)	2.82 (2.71–2.93)	0.994
Synbranchidae
Synbranchus marmoratus	5	21.05–34.06	9.01–41.82	0.001 (0.000–0.025)	3.05 (2.03–4.07)	0.968
Trichomycteridae
Trichomycterus gr. zonatus	8	2.75–5.48	0.28–2.03	0.016 (0.011–0.021)	2.83 (2.61–3.05)	0.994
Rio Ubatiba
Anablepidae
Jenynsia multidentata	17	2.0–2.9	0.17–0.54	0.019 (0.013–0.028)	3.19 (2.74–3.64)	0.938
Characidae
Deuterodon hastatus	399	2.5–6.2	0.22–8.32	0.019 (0.016–0.022)	3.21 (3.11–3.31)	0.911
Deuterodon janeiroensis	328	0.29–42.2	2.3–11.4	0.026 (0.024–0.029)	3.00 (2.94–3.05	0.973
Mimagoniates microlepis	374	1.2–4.6	0.06–1.60	0.028 (0.025–0.032)	2.57 (2.44–2.69)	0.806
Cichlidae
Geophagus brasiliensis	115	1.0–7	0.01–16.09	0.019 (0.017–0.021)	3.38 (3.31–3.46)	0.985
Crenuchidae
Characidium sp	154	2.6–7.2	0.2–6.48	0.014 (0.010–0.019)	3.06 (2.87–3.25)	0.864
Characidium interruptum	15	2.1–4.0	0.14–1.5	0.015 (0.005–0.045)	3.09 (2.14–4.04)	0.791
Erythrinidae
Hoplias malabaricus	18	1.8–17.8	0.08–79.48	0.017 (0.010–0.029)	2.92 (2.69–3.14)	0.979
Heptapteridae
Pimelodella lateristriga	94	3.7–7.4	0.61–4.99	0.013 (0.010–0.016)	2.91 (2.77–3.05)	0.949
Rhamdia quelen	12	6.4–8.3	1.99–6.03	0.002 (0.0005–0.0074)	3.74 (3.09–4.39)	0.943
Poeciliidae
Phalloceros harpagos	90	1.0–3.2	0.02–0.69	0.016 (0.014–0.018)	3.06 (2.91–3.22)	0.946
Poecilia reticulata	13	1.4–3.3	0.04–0.68	0.018 (0.014–0.023)	3.10 (2.72–3.48)	0.966
Poecilia vivipara	98	1.0–4.0	0.01–2.13	0.019 (0.017–0.020)	3.36 (3.29–3.44)	0.987
Synbranchidae
Synbranchus marmoratus	7	15.5–22.5	3.64–11.4	0.0008 (0.0001–0.0005)	3.05 (2.44–3.65)	0.971
Rio Mato Grosso
Heptapteridae
Pimelodella lateristriga	206	3.0–11.7	0.5–19.5	0.015 (0.014–0.017)	2.89 (2.82–2.96)	0.972
Rhamdia quelen	14	9.54–16.5	12.48–69.54	0.013 (0.005–0.036)	3.04 (2.66–3.42)	0.961
Loricariidae
Hypostomus punctatus	34	2.2–11.1	0.23–25.83	0.025 (0.017–0.037)	2.89 (2.58–3.20)	0.919
Parotocinclus maculicauda	121	2.4–3.9	0.29–1.30	0.032 (0.022–0.047)	2.62 (2.29–2.94)	0.720

Instituto Virtual da Biodiversidade | BIOTA - FAPESP Departamento de Biologia Vegetal - Instituto de Biologia, UNICAMP CP 6109, 13083-970 - Campinas/SP, Tel.: (+55 19) 3521-6166, Fax: (+55 19) 3521-6168 - Campinas - SP - Brazil
E-mail: contato@biotaneotropica.org.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] * Corresponding author: priscilacunhaoli@gmail.com