The influence of habitat on the size distribution of groupers in the upper Florida Keys

Robert Sluka, Kathleen Sealey

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

The influence of habitat on the size distribution of groupers was examined at sites in the middle and upper Florida Keys. Transects were used to quantify the size distribution of groupers at study sites. There were significant differences in the size distribution of groupers within and among reef community types related to differences in species composition and patch reef size. Groupers with a 'giant' life-history style (Sullivan and de Garine 1994) were more abundant, but smaller, on inshore patch reefs than offshore reef community types. However, grouper species with a 'dwarf' life-history style (Sullivan and de Garine 1994) showed an opposite pattern with n lower abundance, but larger size, inshore than offshore. The length category of groupers constituting the majority of individuals observed on patch reefs was inversely related to reef size. Graysby Epinephelus cruentatus were shown to recruit to deeper (15-20 m), low-relief habitats offshore. Several factors influenced the size distribution of groupers in the study sites including habitat type, spear-fishing, competition, predation, and recruitment.

Original languageEnglish
Pages (from-to)177-189
Number of pages13
JournalEnvironmental Biology of Fishes
Volume47
Issue number2
StatePublished - Oct 31 1996

Fingerprint

grouper
reef
reefs
habitat
habitats
life history
Epinephelus
habitat type
fishing
relief
transect
predation
species diversity

Keywords

  • Epinephelus
  • Fishes
  • Mycteroperca
  • Predation
  • Recruitment

ASJC Scopus subject areas

  • Aquatic Science
  • Ecology

Cite this

The influence of habitat on the size distribution of groupers in the upper Florida Keys. / Sluka, Robert; Sealey, Kathleen.

In: Environmental Biology of Fishes, Vol. 47, No. 2, 31.10.1996, p. 177-189.

Research output: Contribution to journalArticle

@article{a33a5700752f403db950cf5e02e69f58,
title = "The influence of habitat on the size distribution of groupers in the upper Florida Keys",
abstract = "The influence of habitat on the size distribution of groupers was examined at sites in the middle and upper Florida Keys. Transects were used to quantify the size distribution of groupers at study sites. There were significant differences in the size distribution of groupers within and among reef community types related to differences in species composition and patch reef size. Groupers with a 'giant' life-history style (Sullivan and de Garine 1994) were more abundant, but smaller, on inshore patch reefs than offshore reef community types. However, grouper species with a 'dwarf' life-history style (Sullivan and de Garine 1994) showed an opposite pattern with n lower abundance, but larger size, inshore than offshore. The length category of groupers constituting the majority of individuals observed on patch reefs was inversely related to reef size. Graysby Epinephelus cruentatus were shown to recruit to deeper (15-20 m), low-relief habitats offshore. Several factors influenced the size distribution of groupers in the study sites including habitat type, spear-fishing, competition, predation, and recruitment.",
keywords = "Epinephelus, Fishes, Mycteroperca, Predation, Recruitment",
author = "Robert Sluka and Kathleen Sealey",
year = "1996",
month = "10",
day = "31",
language = "English",
volume = "47",
pages = "177--189",
journal = "Environmental Biology of Fishes",
issn = "0378-1909",
publisher = "Springer Netherlands",
number = "2",

}

TY - JOUR

T1 - The influence of habitat on the size distribution of groupers in the upper Florida Keys

AU - Sluka, Robert

AU - Sealey, Kathleen

PY - 1996/10/31

Y1 - 1996/10/31

N2 - The influence of habitat on the size distribution of groupers was examined at sites in the middle and upper Florida Keys. Transects were used to quantify the size distribution of groupers at study sites. There were significant differences in the size distribution of groupers within and among reef community types related to differences in species composition and patch reef size. Groupers with a 'giant' life-history style (Sullivan and de Garine 1994) were more abundant, but smaller, on inshore patch reefs than offshore reef community types. However, grouper species with a 'dwarf' life-history style (Sullivan and de Garine 1994) showed an opposite pattern with n lower abundance, but larger size, inshore than offshore. The length category of groupers constituting the majority of individuals observed on patch reefs was inversely related to reef size. Graysby Epinephelus cruentatus were shown to recruit to deeper (15-20 m), low-relief habitats offshore. Several factors influenced the size distribution of groupers in the study sites including habitat type, spear-fishing, competition, predation, and recruitment.

AB - The influence of habitat on the size distribution of groupers was examined at sites in the middle and upper Florida Keys. Transects were used to quantify the size distribution of groupers at study sites. There were significant differences in the size distribution of groupers within and among reef community types related to differences in species composition and patch reef size. Groupers with a 'giant' life-history style (Sullivan and de Garine 1994) were more abundant, but smaller, on inshore patch reefs than offshore reef community types. However, grouper species with a 'dwarf' life-history style (Sullivan and de Garine 1994) showed an opposite pattern with n lower abundance, but larger size, inshore than offshore. The length category of groupers constituting the majority of individuals observed on patch reefs was inversely related to reef size. Graysby Epinephelus cruentatus were shown to recruit to deeper (15-20 m), low-relief habitats offshore. Several factors influenced the size distribution of groupers in the study sites including habitat type, spear-fishing, competition, predation, and recruitment.

KW - Epinephelus

KW - Fishes

KW - Mycteroperca

KW - Predation

KW - Recruitment

UR - http://www.scopus.com/inward/record.url?scp=0029669777&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029669777&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0029669777

VL - 47

SP - 177

EP - 189

JO - Environmental Biology of Fishes

JF - Environmental Biology of Fishes

SN - 0378-1909

IS - 2

ER -